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<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam</link><description /><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam</link><pubDate>Wed, 13 Sep 2023 11:17:36 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Ranjana Shinde</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Current Revision posted to RAM | STAAD | ADINA Wiki by Ranjana Shinde on 9/13/2023 11:17:36 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
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&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
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&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;ol&gt;
&lt;li&gt;&lt;strong&gt;&lt;/strong&gt;[[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/li&gt;
&lt;li&gt;[[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/li&gt;
&lt;li&gt;[[Can number of bars for the given width of beam be edited?]]&lt;/li&gt;
&lt;li&gt;[[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/li&gt;
&lt;li&gt;[[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/li&gt;
&lt;li&gt;[[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/li&gt;
&lt;li&gt;[[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/li&gt;
&lt;li&gt;[[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/li&gt;
&lt;li&gt;[[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/li&gt;
&lt;li&gt;[[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/li&gt;
&lt;li&gt;[[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/li&gt;
&lt;li&gt;[[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/li&gt;
&lt;li&gt;[[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/li&gt;
&lt;li&gt;[[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[If Beam shows Failure]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/li&gt;
&lt;li&gt;[[For Non ductile and Ductile Beam]]&lt;/li&gt;
&lt;li&gt;[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/li&gt;
&lt;li&gt;[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;/strong&gt;[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/li&gt;
&lt;li&gt;[[In RCDC Detailing option is available in Design Settings.]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/li&gt;
&lt;li&gt;[[RCDC is considering &amp;#39;Zero&amp;quot; bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/li&gt;
&lt;li&gt;[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/li&gt;
&lt;li&gt;[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/li&gt;
&lt;li&gt;[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/li&gt;
&lt;li&gt;[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/li&gt;
&lt;li&gt;[[Asv required for is greater than Asv provided.]]&lt;/li&gt;
&lt;li&gt;[[Detailing of beams with different depths in RCDC]]&lt;/li&gt;
&lt;li&gt;[[Query related to Force matching with ETABS ACCDB]]&lt;/li&gt;
&lt;li&gt;[[Beam ductile link calculation as per IS 13920-2016 cl 6.3.5 (b)]]&lt;/li&gt;
&lt;li&gt;[[Beam Design for biaxial moment]]&lt;/li&gt;
&lt;li&gt;[[Beam design with axial force and Biaxial Moment - Side face reinforcement for Column detailing ]]&lt;/li&gt;
&lt;/ol&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/109</link><pubDate>Wed, 13 Sep 2023 10:57:51 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Ranjana Shinde</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 109 posted to RAM | STAAD | ADINA Wiki by Ranjana Shinde on 9/13/2023 10:57:51 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
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&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;ol&gt;
&lt;li&gt;&lt;strong&gt;&lt;/strong&gt;[[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/li&gt;
&lt;li&gt;[[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/li&gt;
&lt;li&gt;[[Can number of bars for the given width of beam be edited?]]&lt;/li&gt;
&lt;li&gt;[[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/li&gt;
&lt;li&gt;[[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/li&gt;
&lt;li&gt;[[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/li&gt;
&lt;li&gt;[[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/li&gt;
&lt;li&gt;[[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/li&gt;
&lt;li&gt;[[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/li&gt;
&lt;li&gt;[[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/li&gt;
&lt;li&gt;[[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/li&gt;
&lt;li&gt;[[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/li&gt;
&lt;li&gt;[[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/li&gt;
&lt;li&gt;[[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[If Beam shows Failure]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/li&gt;
&lt;li&gt;[[For Non ductile and Ductile Beam]]&lt;/li&gt;
&lt;li&gt;[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/li&gt;
&lt;li&gt;[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;/strong&gt;[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/li&gt;
&lt;li&gt;[[In RCDC Detailing option is available in Design Settings.]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/li&gt;
&lt;li&gt;[[RCDC is considering &amp;#39;Zero&amp;quot; bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/li&gt;
&lt;li&gt;[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/li&gt;
&lt;li&gt;[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/li&gt;
&lt;li&gt;[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/li&gt;
&lt;li&gt;[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/li&gt;
&lt;li&gt;[[Asv required for is greater than Asv provided.]]&lt;/li&gt;
&lt;li&gt;[[Detailing of beams with different depths in RCDC]]&lt;/li&gt;
&lt;li&gt;[[Query related to Force matching with ETABS ACCDB]]&lt;/li&gt;
&lt;li&gt;[[Beam ductile link calculation as per IS 13920-2016 cl 6.3.5 (b)]]&lt;/li&gt;
&lt;li&gt;[[Beam Design for biaxial moment]]&lt;/li&gt;
&lt;li&gt;[[Link beam side face reinforcement in RCDC.]]&lt;/li&gt;
&lt;/ol&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/108</link><pubDate>Thu, 27 Apr 2023 18:09:45 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Abhisek M</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 108 posted to RAM | STAAD | ADINA Wiki by Abhisek M on 4/27/2023 6:09:45 PM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
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&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
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&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;ol&gt;
&lt;li&gt;&lt;strong&gt;&lt;/strong&gt;[[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/li&gt;
&lt;li&gt;[[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/li&gt;
&lt;li&gt;[[Can number of bars for the given width of beam be edited?]]&lt;/li&gt;
&lt;li&gt;[[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/li&gt;
&lt;li&gt;[[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/li&gt;
&lt;li&gt;[[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/li&gt;
&lt;li&gt;[[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/li&gt;
&lt;li&gt;[[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/li&gt;
&lt;li&gt;[[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/li&gt;
&lt;li&gt;[[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/li&gt;
&lt;li&gt;[[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/li&gt;
&lt;li&gt;[[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/li&gt;
&lt;li&gt;[[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/li&gt;
&lt;li&gt;[[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[If Beam shows Failure]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/li&gt;
&lt;li&gt;[[For Non ductile and Ductile Beam]]&lt;/li&gt;
&lt;li&gt;[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/li&gt;
&lt;li&gt;[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;/strong&gt;[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/li&gt;
&lt;li&gt;[[In RCDC Detailing option is available in Design Settings.]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/li&gt;
&lt;li&gt;[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/li&gt;
&lt;li&gt;[[RCDC is considering &amp;#39;Zero&amp;quot; bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/li&gt;
&lt;li&gt;[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/li&gt;
&lt;li&gt;[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/li&gt;
&lt;li&gt;[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/li&gt;
&lt;li&gt;&lt;span&gt;[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/li&gt;
&lt;li&gt;[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/li&gt;
&lt;li&gt;[[Asv required for is greater than Asv provided.]]&lt;/li&gt;
&lt;li&gt;[[Detailing of beams with different depths in RCDC]]&lt;/li&gt;
&lt;li&gt;[[Query related to Force matching with ETABS ACCDB]]&lt;/li&gt;
&lt;li&gt;[[Beam ductile link calculation as per IS 13920-2016 cl 6.3.5 (b)]]&lt;/li&gt;
&lt;li&gt;[[Beam Design for biaxial moment]]&lt;/li&gt;
&lt;/ol&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/107</link><pubDate>Thu, 27 Apr 2023 18:08:19 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Abhisek M</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 107 posted to RAM | STAAD | ADINA Wiki by Abhisek M on 4/27/2023 6:08:19 PM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;[[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;[[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;[[Can number of bars for the given width of beam be edited?]]&lt;/p&gt;
&lt;p&gt;[[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;[[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;[[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;[[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;[[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;[[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;[[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;[[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;[[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;[[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;[[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;[[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;[[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;[[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;[[If Beam shows Failure]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;[[RCDC is considering &amp;#39;Zero&amp;quot; bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;[[Detailing of beams with different depths in RCDC]]&lt;/p&gt;
&lt;p&gt;[[Query related to Force matching with ETABS ACCDB]]&lt;br /&gt;[[Beam ductile link calculation as per IS 13920-2016 cl 6.3.5 (b)]]&lt;/p&gt;
&lt;p&gt;[[Beam Design for biaxial moment]]&lt;/p&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/106</link><pubDate>Wed, 08 Feb 2023 07:52:37 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Abhisek M</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 106 posted to RAM | STAAD | ADINA Wiki by Abhisek M on 2/8/2023 7:52:37 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/div&gt;
&lt;div&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/div&gt;
&lt;div&gt;3. [[Can number of bars for the given width of beam be edited?]]&lt;/div&gt;
&lt;div&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/div&gt;
&lt;div&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/div&gt;
&lt;div&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/div&gt;
&lt;div&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/div&gt;
&lt;div&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/div&gt;
&lt;div&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/div&gt;
&lt;div&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/div&gt;
&lt;div&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/div&gt;
&lt;div&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/div&gt;
&lt;div&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/div&gt;
&lt;div&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/div&gt;
&lt;div&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/div&gt;
&lt;div&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/div&gt;
&lt;div&gt;21.[[For Non ductile and Ductile Beam]]&lt;/div&gt;
&lt;div&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/div&gt;
&lt;div&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/div&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/div&gt;
&lt;div&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/div&gt;
&lt;div&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/div&gt;
&lt;div&gt;29.[[RCDC is considering &amp;#39;Zero&amp;quot; bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/div&gt;
&lt;div&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/div&gt;
&lt;div&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/div&gt;
&lt;div&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/div&gt;
&lt;div&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/div&gt;
&lt;div&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/div&gt;
&lt;div&gt;37.[[Detailing of beams with different depths in RCDC]]&lt;/div&gt;
&lt;div&gt;38.[[Query related to Force matching with ETABS ACCDB]]&lt;br /&gt;39.[[Beam ductile link calculation as per IS 13920-2016 cl 6.3.5 (b)]]&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/105</link><pubDate>Tue, 20 Dec 2022 12:56:12 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Nidhi Valia</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 105 posted to RAM | STAAD | ADINA Wiki by Nidhi Valia on 12/20/2022 12:56:12 PM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/div&gt;
&lt;div&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/div&gt;
&lt;div&gt;3. [[Can number of bars for the given width of beam be edited?]]&lt;/div&gt;
&lt;div&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/div&gt;
&lt;div&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/div&gt;
&lt;div&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/div&gt;
&lt;div&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/div&gt;
&lt;div&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/div&gt;
&lt;div&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/div&gt;
&lt;div&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/div&gt;
&lt;div&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/div&gt;
&lt;div&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/div&gt;
&lt;div&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/div&gt;
&lt;div&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/div&gt;
&lt;div&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/div&gt;
&lt;div&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/div&gt;
&lt;div&gt;21.[[For Non ductile and Ductile Beam]]&lt;/div&gt;
&lt;div&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/div&gt;
&lt;div&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/div&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/div&gt;
&lt;div&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/div&gt;
&lt;div&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/div&gt;
&lt;div&gt;29.[[RCDC is considering &amp;#39;Zero&amp;quot; bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/div&gt;
&lt;div&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/div&gt;
&lt;div&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/div&gt;
&lt;div&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/div&gt;
&lt;div&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/div&gt;
&lt;div&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/div&gt;
&lt;div&gt;37.[[Detailing of beams with different depths in RCDC]]&lt;/div&gt;
&lt;div&gt;38.[[Query related to Force matching with ETABS ACCDB]]&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/104</link><pubDate>Mon, 19 Dec 2022 10:12:27 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Ranjana Shinde</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 104 posted to RAM | STAAD | ADINA Wiki by Ranjana Shinde on 12/19/2022 10:12:27 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/div&gt;
&lt;div&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/div&gt;
&lt;div&gt;3. [[Can number of bars for the given width of beam be edited?]]&lt;/div&gt;
&lt;div&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/div&gt;
&lt;div&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/div&gt;
&lt;div&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/div&gt;
&lt;div&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/div&gt;
&lt;div&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/div&gt;
&lt;div&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/div&gt;
&lt;div&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/div&gt;
&lt;div&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/div&gt;
&lt;div&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/div&gt;
&lt;div&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/div&gt;
&lt;div&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/div&gt;
&lt;div&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/div&gt;
&lt;div&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/div&gt;
&lt;div&gt;21.[[For Non ductile and Ductile Beam]]&lt;/div&gt;
&lt;div&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/div&gt;
&lt;div&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/div&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/div&gt;
&lt;div&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/div&gt;
&lt;div&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/div&gt;
&lt;div&gt;29.[[RCDC is considering &amp;#39;Zero&amp;quot; bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/div&gt;
&lt;div&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/div&gt;
&lt;div&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/div&gt;
&lt;div&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/div&gt;
&lt;div&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/div&gt;
&lt;div&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/div&gt;
&lt;div&gt;37.[[Detailing of beams with different depths in RCDC]]&lt;/div&gt;
&lt;div&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/103</link><pubDate>Wed, 22 Jun 2022 14:35:28 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Abhisek M</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 103 posted to RAM | STAAD | ADINA Wiki by Abhisek M on 6/22/2022 2:35:28 PM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/div&gt;
&lt;div&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/div&gt;
&lt;div&gt;3. [[Can number of bars for the given width of beam be edited?]]&lt;/div&gt;
&lt;div&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/div&gt;
&lt;div&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/div&gt;
&lt;div&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/div&gt;
&lt;div&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/div&gt;
&lt;div&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/div&gt;
&lt;div&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/div&gt;
&lt;div&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/div&gt;
&lt;div&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/div&gt;
&lt;div&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/div&gt;
&lt;div&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/div&gt;
&lt;div&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/div&gt;
&lt;div&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/div&gt;
&lt;div&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/div&gt;
&lt;div&gt;21.[[For Non ductile and Ductile Beam]]&lt;/div&gt;
&lt;div&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/div&gt;
&lt;div&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/div&gt;
&lt;div&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/div&gt;
&lt;div&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/div&gt;
&lt;div&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/div&gt;
&lt;div&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/div&gt;
&lt;div&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/div&gt;
&lt;div&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/div&gt;
&lt;div&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/div&gt;
&lt;div&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/div&gt;
&lt;div&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/div&gt;
&lt;div&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/102</link><pubDate>Fri, 06 May 2022 08:28:57 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>DSANJU</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 102 posted to RAM | STAAD | ADINA Wiki by DSANJU on 5/6/2022 8:28:57 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;3. [[Can number of bars for the given width of beam be edited?]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/101</link><pubDate>Fri, 06 May 2022 08:28:18 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>DSANJU</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 101 posted to RAM | STAAD | ADINA Wiki by DSANJU on 5/6/2022 8:28:18 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;3. [[Can number of bars for the given width of beam be edited?]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/100</link><pubDate>Fri, 06 May 2022 07:59:57 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 100 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:59:57 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/99</link><pubDate>Fri, 06 May 2022 07:59:19 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 99 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:59:19 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​19&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;br /&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;19.[[If Beam shows Failure]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/98</link><pubDate>Fri, 06 May 2022 07:49:22 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 98 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:49:22 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;&lt;span&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/97</link><pubDate>Fri, 06 May 2022 07:43:22 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 97 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:43:22 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;36.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/96</link><pubDate>Fri, 06 May 2022 07:38:53 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 96 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:38:53 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;25.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;15. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;16. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;17. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;18. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;36.Asv required for is greater than Asv provided.&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;Refer to the attached excel sheet and the corresponding Design Calculation Report from RCDC to validate what is explained in the attached excel.&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/B274-Design-calculation-report-from-RCDC.html"&gt;communities.bentley.com/.../B274-Design-calculation-report-from-RCDC.html&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/Asv-calculation-explanation.xlsx"&gt;communities.bentley.com/.../Asv-calculation-explanation.xlsx&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/95</link><pubDate>Fri, 06 May 2022 07:34:52 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 95 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:34:52 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;25.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;10. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;11. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;12. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;13. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;14. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;32. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;33. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;34. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;35. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;15. If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value given in IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns should not be applicable.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Whenever design for &amp;lsquo;Biaxial Bending&amp;rsquo; is selected, RCDC would treat the design of beam like a column. There is possibility where axial forces would be negligible but lateral moment and shear would be high. In this case this member should be designed as a column only. Axial forces will not govern whether to details the member like beam or column.IS 13920 suggest to design/ details member like column as per clause 7 if axial stress exceeds 0.08ck. here the section will be detail as a column. shear (ductile) links should be calculated as per column.if axial stress less than 0.08 fck the section would be details as beam. All the links calculations would be as per beam. Further depending on Pu-threshold value set by user (the value is considered as compressive), RCDC will design the section with Pu, Mu-major and Mu-minor. If Pu for a given combination is less than Pu-threshold, it simply assumed.Pu = 0. This is only for &amp;lsquo;design combinations&amp;rsquo; or limit state of collapse.&lt;em&gt;For crack-width, there is no input for threshold value (currently there is no provision for it) of axial force. The crack-width is checked for service combinations. In this case, the values as per combinations are used for crack-width check.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;16. We accept that concrete capacity shall be ignored as per clause 6.3.4 of IS 13920-2016 but this can be logically ok if only Ductile shear governs the design.&lt;/em&gt;&lt;em&gt;In cases where DL+LL shear governs the design&amp;nbsp;(i.e. no plastic hinge evidently formed) it will be very conservative to ignore shear capacity of concrete in beam.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;The requirement of ignoring concrete capacity is due to unpredicted forces during earthquake. The earthquake forces are instantaneous, the concrete will crack, and plastic hinge will be formed. Even after the earthquake loads, the beams will be loaded with the Dead and live loads. The cracking of concrete, the shear capacity of the bean will be depending on the shear reinforcements only. Thus, ignoring concrete capacity of the beam for shear check is applicable to all load combinations. So even the critical combination is DL+LL, the concrete capacity should be ignored&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;17. In Beam design output of stirrups, what is 2L-T8 (H)?&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;p&gt;2L-T8 (H) is the horizontal link (stirrups) provided in the beam in case if Beam is designed for Axial+ Biaxial forces.&lt;/p&gt;
&lt;p&gt;Based on the axial stress (0.08 fck) type of beam detailing is performed in RCDC. If section selected for Axial + Biaxial design in RCDC&amp;nbsp;then section&amp;nbsp;will be&amp;nbsp;designed as a column. If the section requires stirrups for horizontal shear in case of beam detailing, RCDC provides horizontal links. In case of section is detail as a column, RCDC provides the horizontal link to tie all the rebars along all faces of the section.&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;18. If the Beams exists at support level of the structure, can it be design in RCDC?&lt;/em&gt;&lt;/strong&gt;&lt;strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;Yes. if the Beams are present at support level, RCDC can read and design these beams. After reading the analysis file for beams, RCDC shows all the levels available in analysis file. User can select the support level for beam design. Column above the support level are considered as support for beam and accordingly beam drawings are generated.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;36.Asv required for is greater than Asv provided.&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;Refer to the attached excel sheet and the corresponding Design Calculation Report from RCDC to validate what is explained in the attached excel.&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/B274-Design-calculation-report-from-RCDC.html"&gt;communities.bentley.com/.../B274-Design-calculation-report-from-RCDC.html&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/Asv-calculation-explanation.xlsx"&gt;communities.bentley.com/.../Asv-calculation-explanation.xlsx&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/94</link><pubDate>Fri, 06 May 2022 07:30:34 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 94 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:30:34 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;33.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;25.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;27. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;28. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;29. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;30. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;31. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;32. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;33. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;34. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;35. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;10. Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;This would be typically doubly reinforced section which causes more reinforcement at top even when moment at that location is nominal. In the calculation report it can be clearly checked where Asc-required at mid-span is captured. This is the top reinforcement required at that section.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;11. Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;RCDC provides the nominal steel where bending moment is ZERO. Default value provided in RCDC for nominal steel is 0.2 %. This is an approximate Value and we have kept the value close to minimum steel in beam. The above value is editable and can be put as per user requirements. For zone with no Bending Moment, RCDC uses nominal steel and for detailing, it would adopt 2 bars with minimum diameter possible.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;12. Is there any option to disregard the contribution of concrete in resisting shear for beam when IS: 13920 is used?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;No. Beam shear design is as per IS 456. Shear induced due to Sway action is calculated as per IS 13920. For Sway shear also the part of shear is arrived from the dead and live load. Thus RCDC does not allow to ignore the concrete for shear design.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;13. When IS: 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes. RCDC designs the beam shear as per Clause 6.3.3 of IS 13920 and consider the reinforcement provided to calculate the moment capacity. For more information refer Topic &amp;ldquo;Calculation of Ductile Shear&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;14. Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;For moment capacity of section RCDC always considered as a Rectangular section as Flange section is not applicable at support. Also to get the flange action, flange has to at compression side which is not the case at support. For more information refer Topic &amp;ldquo;Flanged Beam&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;15. If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value given in IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns should not be applicable.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Whenever design for &amp;lsquo;Biaxial Bending&amp;rsquo; is selected, RCDC would treat the design of beam like a column. There is possibility where axial forces would be negligible but lateral moment and shear would be high. In this case this member should be designed as a column only. Axial forces will not govern whether to details the member like beam or column.IS 13920 suggest to design/ details member like column as per clause 7 if axial stress exceeds 0.08ck. here the section will be detail as a column. shear (ductile) links should be calculated as per column.if axial stress less than 0.08 fck the section would be details as beam. All the links calculations would be as per beam. Further depending on Pu-threshold value set by user (the value is considered as compressive), RCDC will design the section with Pu, Mu-major and Mu-minor. If Pu for a given combination is less than Pu-threshold, it simply assumed.Pu = 0. This is only for &amp;lsquo;design combinations&amp;rsquo; or limit state of collapse.&lt;em&gt;For crack-width, there is no input for threshold value (currently there is no provision for it) of axial force. The crack-width is checked for service combinations. In this case, the values as per combinations are used for crack-width check.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;16. We accept that concrete capacity shall be ignored as per clause 6.3.4 of IS 13920-2016 but this can be logically ok if only Ductile shear governs the design.&lt;/em&gt;&lt;em&gt;In cases where DL+LL shear governs the design&amp;nbsp;(i.e. no plastic hinge evidently formed) it will be very conservative to ignore shear capacity of concrete in beam.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;The requirement of ignoring concrete capacity is due to unpredicted forces during earthquake. The earthquake forces are instantaneous, the concrete will crack, and plastic hinge will be formed. Even after the earthquake loads, the beams will be loaded with the Dead and live loads. The cracking of concrete, the shear capacity of the bean will be depending on the shear reinforcements only. Thus, ignoring concrete capacity of the beam for shear check is applicable to all load combinations. So even the critical combination is DL+LL, the concrete capacity should be ignored&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;17. In Beam design output of stirrups, what is 2L-T8 (H)?&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;p&gt;2L-T8 (H) is the horizontal link (stirrups) provided in the beam in case if Beam is designed for Axial+ Biaxial forces.&lt;/p&gt;
&lt;p&gt;Based on the axial stress (0.08 fck) type of beam detailing is performed in RCDC. If section selected for Axial + Biaxial design in RCDC&amp;nbsp;then section&amp;nbsp;will be&amp;nbsp;designed as a column. If the section requires stirrups for horizontal shear in case of beam detailing, RCDC provides horizontal links. In case of section is detail as a column, RCDC provides the horizontal link to tie all the rebars along all faces of the section.&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;18. If the Beams exists at support level of the structure, can it be design in RCDC?&lt;/em&gt;&lt;/strong&gt;&lt;strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;Yes. if the Beams are present at support level, RCDC can read and design these beams. After reading the analysis file for beams, RCDC shows all the levels available in analysis file. User can select the support level for beam design. Column above the support level are considered as support for beam and accordingly beam drawings are generated.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;36.Asv required for is greater than Asv provided.&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;Refer to the attached excel sheet and the corresponding Design Calculation Report from RCDC to validate what is explained in the attached excel.&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/B274-Design-calculation-report-from-RCDC.html"&gt;communities.bentley.com/.../B274-Design-calculation-report-from-RCDC.html&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/Asv-calculation-explanation.xlsx"&gt;communities.bentley.com/.../Asv-calculation-explanation.xlsx&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/93</link><pubDate>Fri, 06 May 2022 07:26:30 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 93 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:26:30 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;26.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;34.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;35.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;25.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;27. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;28. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;29. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;30. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;31. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;32. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;33. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;34. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;35. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;10. Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;This would be typically doubly reinforced section which causes more reinforcement at top even when moment at that location is nominal. In the calculation report it can be clearly checked where Asc-required at mid-span is captured. This is the top reinforcement required at that section.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;11. Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;RCDC provides the nominal steel where bending moment is ZERO. Default value provided in RCDC for nominal steel is 0.2 %. This is an approximate Value and we have kept the value close to minimum steel in beam. The above value is editable and can be put as per user requirements. For zone with no Bending Moment, RCDC uses nominal steel and for detailing, it would adopt 2 bars with minimum diameter possible.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;12. Is there any option to disregard the contribution of concrete in resisting shear for beam when IS: 13920 is used?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;No. Beam shear design is as per IS 456. Shear induced due to Sway action is calculated as per IS 13920. For Sway shear also the part of shear is arrived from the dead and live load. Thus RCDC does not allow to ignore the concrete for shear design.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;13. When IS: 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes. RCDC designs the beam shear as per Clause 6.3.3 of IS 13920 and consider the reinforcement provided to calculate the moment capacity. For more information refer Topic &amp;ldquo;Calculation of Ductile Shear&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;14. Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;For moment capacity of section RCDC always considered as a Rectangular section as Flange section is not applicable at support. Also to get the flange action, flange has to at compression side which is not the case at support. For more information refer Topic &amp;ldquo;Flanged Beam&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;15. If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value given in IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns should not be applicable.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Whenever design for &amp;lsquo;Biaxial Bending&amp;rsquo; is selected, RCDC would treat the design of beam like a column. There is possibility where axial forces would be negligible but lateral moment and shear would be high. In this case this member should be designed as a column only. Axial forces will not govern whether to details the member like beam or column.IS 13920 suggest to design/ details member like column as per clause 7 if axial stress exceeds 0.08ck. here the section will be detail as a column. shear (ductile) links should be calculated as per column.if axial stress less than 0.08 fck the section would be details as beam. All the links calculations would be as per beam. Further depending on Pu-threshold value set by user (the value is considered as compressive), RCDC will design the section with Pu, Mu-major and Mu-minor. If Pu for a given combination is less than Pu-threshold, it simply assumed.Pu = 0. This is only for &amp;lsquo;design combinations&amp;rsquo; or limit state of collapse.&lt;em&gt;For crack-width, there is no input for threshold value (currently there is no provision for it) of axial force. The crack-width is checked for service combinations. In this case, the values as per combinations are used for crack-width check.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;16. We accept that concrete capacity shall be ignored as per clause 6.3.4 of IS 13920-2016 but this can be logically ok if only Ductile shear governs the design.&lt;/em&gt;&lt;em&gt;In cases where DL+LL shear governs the design&amp;nbsp;(i.e. no plastic hinge evidently formed) it will be very conservative to ignore shear capacity of concrete in beam.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;The requirement of ignoring concrete capacity is due to unpredicted forces during earthquake. The earthquake forces are instantaneous, the concrete will crack, and plastic hinge will be formed. Even after the earthquake loads, the beams will be loaded with the Dead and live loads. The cracking of concrete, the shear capacity of the bean will be depending on the shear reinforcements only. Thus, ignoring concrete capacity of the beam for shear check is applicable to all load combinations. So even the critical combination is DL+LL, the concrete capacity should be ignored&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;17. In Beam design output of stirrups, what is 2L-T8 (H)?&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;p&gt;2L-T8 (H) is the horizontal link (stirrups) provided in the beam in case if Beam is designed for Axial+ Biaxial forces.&lt;/p&gt;
&lt;p&gt;Based on the axial stress (0.08 fck) type of beam detailing is performed in RCDC. If section selected for Axial + Biaxial design in RCDC&amp;nbsp;then section&amp;nbsp;will be&amp;nbsp;designed as a column. If the section requires stirrups for horizontal shear in case of beam detailing, RCDC provides horizontal links. In case of section is detail as a column, RCDC provides the horizontal link to tie all the rebars along all faces of the section.&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;18. If the Beams exists at support level of the structure, can it be design in RCDC?&lt;/em&gt;&lt;/strong&gt;&lt;strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;Yes. if the Beams are present at support level, RCDC can read and design these beams. After reading the analysis file for beams, RCDC shows all the levels available in analysis file. User can select the support level for beam design. Column above the support level are considered as support for beam and accordingly beam drawings are generated.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;33. Is there a Customized curtailment provision in RCDC ?&lt;/strong&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;Each beam&amp;nbsp;is divided and designed at-least at 13 stations i.e. 12 section; along the length of the beam.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Each section&amp;nbsp;is designed for each load combination to arrive at required areas of longitudinal reinforcement at top and bottom and shear reinforcement.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Further, the lapping locations are available as per user inputs. Default location for lapping of top reinforcement is L/4. As RCDC design the beam for 12 zones, the options of L/3, L/4 and L/6 are available for lapping at top and bottom reinforcement. &amp;nbsp;User can choose the lapping location as per design requirements.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;For any beam under consideration, as the bending moment is parabolic in nature and not a linear one, it is not feasible in RCDC to interpolate the BM &amp;quot;&lt;span style="text-decoration:underline;"&gt;in between the section length&amp;quot;&lt;/span&gt;. So,&amp;nbsp;the lapping locations provided in RCDC are all multiple of 12 i.e. L/3, L/4 &amp;amp; L/6 ---- where 12 is the number of section in which a beam is divided.&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;span&gt;RCDC provides all the Lapping location as mentioned in SP34 except for L/10 so as to avoid the interpolation of Bending moment in between a section length.&amp;nbsp;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630416097945v4.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;At top location, the lapping is provided at curtailment locations. i.e. L/3,L/4 or L/6 distance from column face. Here the distance 2xD is not checked for curtailment. If we start providing curtailments for beams as per the beam depth, it would be complicated. The curtailment location will vary as per the beam depth. The location of curtailments might fall between two stations. Checking reinforcement curtailments at any location as per 2D would not be simple and might not give the desire result. Interpolation of forces is not possible for in between values. Even if we consider on higher side, it would not be consistent to all beams and curtailments will not match the distance 2D for all beams. Also, it is very difficult to handle Ast calculations and shear check location for individual beams.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;For Bottom location, RCDC provides the lapping at face of the beam. The higher diameter rebars extends to lower diameter to make sure that the it satisfies the bending and shear check criteria. Also, the confining of the reinforcement exists up to twice the distance from the column face.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;If we provide lapping away from the twice the beam depth, it might reach in the middle zone of the beam which is also needs to avoid as it is governed by permanent loads. In this case we might need to handle ductile and Non-ductile beams separately. For ductile beam lapping will place away from the 2D and for Non-ductile it is possible to provide within 2D.&lt;/span&gt;&lt;span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Note that there is an option in RCDC to perform local curtailment by modifying the reinforcement locally for any station of a zone. On the design output window, you can click on the &amp;#39;Detail&amp;#39; feature and by double click on each zone, you can modify the &amp;#39;Top reinforcement&amp;#39;,&amp;nbsp;&amp;#39;Bottom reinforcement&amp;#39; &amp;amp; &amp;#39;Shear reinforcement&amp;#39; also.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Further, in case you want to use the same reinforcement configuration for other zone by avoiding this step, there is further tool available to &amp;#39;copy reinforcement&amp;#39; &amp;amp; then &amp;#39;paste reinforcement&amp;#39; to other beam with same size and same material used for design.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417821813v6.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417887641v8.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417924966v9.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;Refer the attached video for understanding how this can be done.&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4"&gt;communities.bentley.com/.../2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4&lt;/a&gt;&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;36.Asv required for is greater than Asv provided.&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;Refer to the attached excel sheet and the corresponding Design Calculation Report from RCDC to validate what is explained in the attached excel.&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/B274-Design-calculation-report-from-RCDC.html"&gt;communities.bentley.com/.../B274-Design-calculation-report-from-RCDC.html&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/Asv-calculation-explanation.xlsx"&gt;communities.bentley.com/.../Asv-calculation-explanation.xlsx&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/92</link><pubDate>Fri, 06 May 2022 07:14:57 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 92 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:14:57 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;26.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;31.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;32.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;23.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;24.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;25.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;27. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;28. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;29. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;30. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;31. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;32. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;33. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;34. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;35. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;10. Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;This would be typically doubly reinforced section which causes more reinforcement at top even when moment at that location is nominal. In the calculation report it can be clearly checked where Asc-required at mid-span is captured. This is the top reinforcement required at that section.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;11. Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;RCDC provides the nominal steel where bending moment is ZERO. Default value provided in RCDC for nominal steel is 0.2 %. This is an approximate Value and we have kept the value close to minimum steel in beam. The above value is editable and can be put as per user requirements. For zone with no Bending Moment, RCDC uses nominal steel and for detailing, it would adopt 2 bars with minimum diameter possible.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;12. Is there any option to disregard the contribution of concrete in resisting shear for beam when IS: 13920 is used?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;No. Beam shear design is as per IS 456. Shear induced due to Sway action is calculated as per IS 13920. For Sway shear also the part of shear is arrived from the dead and live load. Thus RCDC does not allow to ignore the concrete for shear design.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;13. When IS: 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes. RCDC designs the beam shear as per Clause 6.3.3 of IS 13920 and consider the reinforcement provided to calculate the moment capacity. For more information refer Topic &amp;ldquo;Calculation of Ductile Shear&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;14. Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;For moment capacity of section RCDC always considered as a Rectangular section as Flange section is not applicable at support. Also to get the flange action, flange has to at compression side which is not the case at support. For more information refer Topic &amp;ldquo;Flanged Beam&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;15. If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value given in IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns should not be applicable.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Whenever design for &amp;lsquo;Biaxial Bending&amp;rsquo; is selected, RCDC would treat the design of beam like a column. There is possibility where axial forces would be negligible but lateral moment and shear would be high. In this case this member should be designed as a column only. Axial forces will not govern whether to details the member like beam or column.IS 13920 suggest to design/ details member like column as per clause 7 if axial stress exceeds 0.08ck. here the section will be detail as a column. shear (ductile) links should be calculated as per column.if axial stress less than 0.08 fck the section would be details as beam. All the links calculations would be as per beam. Further depending on Pu-threshold value set by user (the value is considered as compressive), RCDC will design the section with Pu, Mu-major and Mu-minor. If Pu for a given combination is less than Pu-threshold, it simply assumed.Pu = 0. This is only for &amp;lsquo;design combinations&amp;rsquo; or limit state of collapse.&lt;em&gt;For crack-width, there is no input for threshold value (currently there is no provision for it) of axial force. The crack-width is checked for service combinations. In this case, the values as per combinations are used for crack-width check.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;16. We accept that concrete capacity shall be ignored as per clause 6.3.4 of IS 13920-2016 but this can be logically ok if only Ductile shear governs the design.&lt;/em&gt;&lt;em&gt;In cases where DL+LL shear governs the design&amp;nbsp;(i.e. no plastic hinge evidently formed) it will be very conservative to ignore shear capacity of concrete in beam.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;The requirement of ignoring concrete capacity is due to unpredicted forces during earthquake. The earthquake forces are instantaneous, the concrete will crack, and plastic hinge will be formed. Even after the earthquake loads, the beams will be loaded with the Dead and live loads. The cracking of concrete, the shear capacity of the bean will be depending on the shear reinforcements only. Thus, ignoring concrete capacity of the beam for shear check is applicable to all load combinations. So even the critical combination is DL+LL, the concrete capacity should be ignored&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;17. In Beam design output of stirrups, what is 2L-T8 (H)?&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;p&gt;2L-T8 (H) is the horizontal link (stirrups) provided in the beam in case if Beam is designed for Axial+ Biaxial forces.&lt;/p&gt;
&lt;p&gt;Based on the axial stress (0.08 fck) type of beam detailing is performed in RCDC. If section selected for Axial + Biaxial design in RCDC&amp;nbsp;then section&amp;nbsp;will be&amp;nbsp;designed as a column. If the section requires stirrups for horizontal shear in case of beam detailing, RCDC provides horizontal links. In case of section is detail as a column, RCDC provides the horizontal link to tie all the rebars along all faces of the section.&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;18. If the Beams exists at support level of the structure, can it be design in RCDC?&lt;/em&gt;&lt;/strong&gt;&lt;strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;Yes. if the Beams are present at support level, RCDC can read and design these beams. After reading the analysis file for beams, RCDC shows all the levels available in analysis file. User can select the support level for beam design. Column above the support level are considered as support for beam and accordingly beam drawings are generated.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;33. Is there a Customized curtailment provision in RCDC ?&lt;/strong&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;Each beam&amp;nbsp;is divided and designed at-least at 13 stations i.e. 12 section; along the length of the beam.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Each section&amp;nbsp;is designed for each load combination to arrive at required areas of longitudinal reinforcement at top and bottom and shear reinforcement.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Further, the lapping locations are available as per user inputs. Default location for lapping of top reinforcement is L/4. As RCDC design the beam for 12 zones, the options of L/3, L/4 and L/6 are available for lapping at top and bottom reinforcement. &amp;nbsp;User can choose the lapping location as per design requirements.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;For any beam under consideration, as the bending moment is parabolic in nature and not a linear one, it is not feasible in RCDC to interpolate the BM &amp;quot;&lt;span style="text-decoration:underline;"&gt;in between the section length&amp;quot;&lt;/span&gt;. So,&amp;nbsp;the lapping locations provided in RCDC are all multiple of 12 i.e. L/3, L/4 &amp;amp; L/6 ---- where 12 is the number of section in which a beam is divided.&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;span&gt;RCDC provides all the Lapping location as mentioned in SP34 except for L/10 so as to avoid the interpolation of Bending moment in between a section length.&amp;nbsp;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630416097945v4.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;At top location, the lapping is provided at curtailment locations. i.e. L/3,L/4 or L/6 distance from column face. Here the distance 2xD is not checked for curtailment. If we start providing curtailments for beams as per the beam depth, it would be complicated. The curtailment location will vary as per the beam depth. The location of curtailments might fall between two stations. Checking reinforcement curtailments at any location as per 2D would not be simple and might not give the desire result. Interpolation of forces is not possible for in between values. Even if we consider on higher side, it would not be consistent to all beams and curtailments will not match the distance 2D for all beams. Also, it is very difficult to handle Ast calculations and shear check location for individual beams.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;For Bottom location, RCDC provides the lapping at face of the beam. The higher diameter rebars extends to lower diameter to make sure that the it satisfies the bending and shear check criteria. Also, the confining of the reinforcement exists up to twice the distance from the column face.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;If we provide lapping away from the twice the beam depth, it might reach in the middle zone of the beam which is also needs to avoid as it is governed by permanent loads. In this case we might need to handle ductile and Non-ductile beams separately. For ductile beam lapping will place away from the 2D and for Non-ductile it is possible to provide within 2D.&lt;/span&gt;&lt;span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Note that there is an option in RCDC to perform local curtailment by modifying the reinforcement locally for any station of a zone. On the design output window, you can click on the &amp;#39;Detail&amp;#39; feature and by double click on each zone, you can modify the &amp;#39;Top reinforcement&amp;#39;,&amp;nbsp;&amp;#39;Bottom reinforcement&amp;#39; &amp;amp; &amp;#39;Shear reinforcement&amp;#39; also.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Further, in case you want to use the same reinforcement configuration for other zone by avoiding this step, there is further tool available to &amp;#39;copy reinforcement&amp;#39; &amp;amp; then &amp;#39;paste reinforcement&amp;#39; to other beam with same size and same material used for design.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417821813v6.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417887641v8.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417924966v9.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;Refer the attached video for understanding how this can be done.&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4"&gt;communities.bentley.com/.../2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4&lt;/a&gt;&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;34. What is the purpose of the &lt;span style="text-decoration:underline;"&gt;Ignore Torsion&lt;/span&gt; feature available in RCDC Design settings and how does RCDC Consider it while designing any beam with Torsion ?&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1640242077690v3.png" /&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;RCDC reads the design forces from analysis and performs the design based on that. We are not making any changes to force values that we get. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;The feature for &amp;#39;Ignore Torsion&amp;#39; was introduced because many users argued that the torsion value we are getting from analysis may be unreal as effect of the slabs is often ignored in the analysis. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;To cater for such cases, we allow users to set a value of torsion, so that while designing RCDC ignores all the values below that value. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;If we allow users to &amp;#39;deduct&amp;#39; any value from the analysis values, that would mean we are tampering with the analysis results for design, which we want to avoid. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;We would not be introducing any such feature.&lt;em&gt; &lt;/em&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;em&gt;We would suggest using &amp;#39;Stiffness Modifiers&amp;#39; or &amp;#39;Member End Releases&amp;#39; appropriately in the analysis to actually release the effect of torsion.&lt;/em&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;35.RCDC is providing steel for beams in several layers of 12mm dia. for some beams. Instead of using greater diameter of bar and less number of layers, software is providing all layers with T12 bars.&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; This scenario happens when we select ductile design for beams. As per IS13920:2016 clause 7.1.1 (a) the largest diameter of longitudinal bar in the beam passing through or anchoring at the column. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1640768159785v3.png" /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;In RCDC as we design every element type in different module, this check was not available earlier. In recent updates we have provided this check in beam module. So, now the highest reinforcement dia permissible in beam is not greater than column dimension in the direction of beam spanning /20. So, if the dimension of column is 300mm, maximum allowable bar dia is 300 /20 = 15mm. But as 12mm and 16mm are the diameter available practically, we will use 12mm dia. If you want to use higher diameter rebar then you need to increase the size of column.&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;36.Asv required for is greater than Asv provided.&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;Refer to the attached excel sheet and the corresponding Design Calculation Report from RCDC to validate what is explained in the attached excel.&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/B274-Design-calculation-report-from-RCDC.html"&gt;communities.bentley.com/.../B274-Design-calculation-report-from-RCDC.html&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/Asv-calculation-explanation.xlsx"&gt;communities.bentley.com/.../Asv-calculation-explanation.xlsx&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/91</link><pubDate>Fri, 06 May 2022 07:07:59 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 91 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:07:59 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
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&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
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&lt;/tr&gt;
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&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
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&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
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&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;26.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;30.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;21.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;22.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;23.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;24.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;25.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;27. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;28. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;29. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;30. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;31. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;32. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;33. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;34. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;35. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;10. Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;This would be typically doubly reinforced section which causes more reinforcement at top even when moment at that location is nominal. In the calculation report it can be clearly checked where Asc-required at mid-span is captured. This is the top reinforcement required at that section.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;11. Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;RCDC provides the nominal steel where bending moment is ZERO. Default value provided in RCDC for nominal steel is 0.2 %. This is an approximate Value and we have kept the value close to minimum steel in beam. The above value is editable and can be put as per user requirements. For zone with no Bending Moment, RCDC uses nominal steel and for detailing, it would adopt 2 bars with minimum diameter possible.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;12. Is there any option to disregard the contribution of concrete in resisting shear for beam when IS: 13920 is used?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;No. Beam shear design is as per IS 456. Shear induced due to Sway action is calculated as per IS 13920. For Sway shear also the part of shear is arrived from the dead and live load. Thus RCDC does not allow to ignore the concrete for shear design.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;13. When IS: 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes. RCDC designs the beam shear as per Clause 6.3.3 of IS 13920 and consider the reinforcement provided to calculate the moment capacity. For more information refer Topic &amp;ldquo;Calculation of Ductile Shear&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;14. Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;For moment capacity of section RCDC always considered as a Rectangular section as Flange section is not applicable at support. Also to get the flange action, flange has to at compression side which is not the case at support. For more information refer Topic &amp;ldquo;Flanged Beam&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;15. If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value given in IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns should not be applicable.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Whenever design for &amp;lsquo;Biaxial Bending&amp;rsquo; is selected, RCDC would treat the design of beam like a column. There is possibility where axial forces would be negligible but lateral moment and shear would be high. In this case this member should be designed as a column only. Axial forces will not govern whether to details the member like beam or column.IS 13920 suggest to design/ details member like column as per clause 7 if axial stress exceeds 0.08ck. here the section will be detail as a column. shear (ductile) links should be calculated as per column.if axial stress less than 0.08 fck the section would be details as beam. All the links calculations would be as per beam. Further depending on Pu-threshold value set by user (the value is considered as compressive), RCDC will design the section with Pu, Mu-major and Mu-minor. If Pu for a given combination is less than Pu-threshold, it simply assumed.Pu = 0. This is only for &amp;lsquo;design combinations&amp;rsquo; or limit state of collapse.&lt;em&gt;For crack-width, there is no input for threshold value (currently there is no provision for it) of axial force. The crack-width is checked for service combinations. In this case, the values as per combinations are used for crack-width check.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;16. We accept that concrete capacity shall be ignored as per clause 6.3.4 of IS 13920-2016 but this can be logically ok if only Ductile shear governs the design.&lt;/em&gt;&lt;em&gt;In cases where DL+LL shear governs the design&amp;nbsp;(i.e. no plastic hinge evidently formed) it will be very conservative to ignore shear capacity of concrete in beam.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;The requirement of ignoring concrete capacity is due to unpredicted forces during earthquake. The earthquake forces are instantaneous, the concrete will crack, and plastic hinge will be formed. Even after the earthquake loads, the beams will be loaded with the Dead and live loads. The cracking of concrete, the shear capacity of the bean will be depending on the shear reinforcements only. Thus, ignoring concrete capacity of the beam for shear check is applicable to all load combinations. So even the critical combination is DL+LL, the concrete capacity should be ignored&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;17. In Beam design output of stirrups, what is 2L-T8 (H)?&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;p&gt;2L-T8 (H) is the horizontal link (stirrups) provided in the beam in case if Beam is designed for Axial+ Biaxial forces.&lt;/p&gt;
&lt;p&gt;Based on the axial stress (0.08 fck) type of beam detailing is performed in RCDC. If section selected for Axial + Biaxial design in RCDC&amp;nbsp;then section&amp;nbsp;will be&amp;nbsp;designed as a column. If the section requires stirrups for horizontal shear in case of beam detailing, RCDC provides horizontal links. In case of section is detail as a column, RCDC provides the horizontal link to tie all the rebars along all faces of the section.&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;18. If the Beams exists at support level of the structure, can it be design in RCDC?&lt;/em&gt;&lt;/strong&gt;&lt;strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;Yes. if the Beams are present at support level, RCDC can read and design these beams. After reading the analysis file for beams, RCDC shows all the levels available in analysis file. User can select the support level for beam design. Column above the support level are considered as support for beam and accordingly beam drawings are generated.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:90px;"&gt;&lt;span style="color:#ff00ff;"&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span style="background-color:#ffffff;color:#000000;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;strong&gt;31. &lt;/strong&gt;Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? It should take hogging and sagging moments of receiving frame beams for the earthquake loads and calculate the sway shears for comparison of shear force with the static analysis shear force.&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Reply&lt;strong&gt;:&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;As mentioned in 13920-2016 code, ductility criteria is to be applied to beams which are resisting the Seismic forces. Below image for reference:&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1627545593647v2.png" /&gt;&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;span&gt;As per above sentence all the beams on which seismic forces are applied or the beams that behaves as a part of seismic force resisting system needs to be designed for ductility. But the critical load combination can be any one; which imposes Max Flexure or Max shear on the beam. &lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;So, based on same, when Seismic forces are applied in the analysis file and also when Seismic load cases are selected for design of beams in RCDC, ductility criteria is applied.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Also, there is an option in RCDC where user can select the beams which needs to be designed for Ductility. By default, when &amp;lsquo;Ductile Design&amp;rsquo; option is selected from Design settings, RCDC selects all Primary column to column beams to be designed for Ductility criteria. &lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Going ahead, for shear design of Beams, RCDC follows below mentioned steps:&lt;/span&gt;&lt;/p&gt;
&lt;ol&gt;
&lt;li&gt;&lt;span&gt; RCDC identifies the &amp;lsquo;Max Shear&amp;rsquo; value for the considered beam from all the available load combinations. This happens for Left Mid and Right zone of the beam. &lt;/span&gt;
&lt;ol&gt;
&lt;li&gt;&lt;span&gt; To this max shear, the additional shear due to torsion is added:&lt;/span&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;/li&gt;
&lt;/ol&gt;
&lt;p style="padding-left:30px;"&gt;&lt;span&gt;Vut = Vu (from analysis) + Vtu (Shear induced due to torsion)&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ol start="2"&gt;
&lt;li&gt;&lt;span&gt; Once the Max shear is determined, RCDC will trace the load combination from where Max Shear is found and take it as critical load combination. &lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt; The sway shear (Vu sway) is calculated as below (as per IS 13920 &amp;ndash; 2016).&lt;/span&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;The simply supported shear is calculated as below for the DL and LL cases independently and added when calculating ductile shear &amp;ndash;&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;br /&gt; V-left = Shear at left end from analysis&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;V-left-ss (Shear at left end as per simply-supported action) =&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt; = V-left &amp;ndash; M-left/L + M-right/L&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;Calculation of ductile-shear at any section from left to right can be worked out as below -&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;V-x = Shear at &amp;lsquo;x&amp;rsquo; left end from analysis&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;V-x-ductile = Maximum of (V-x &amp;ndash; M-left/L + M-right/L &amp;ndash; Sway shear-right), (V-x &amp;ndash; M-left/L + M-right/L + Sway shear-left)&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ol start="4"&gt;
&lt;li&gt;&lt;span&gt;The final Design Shear i.e. Vud = Max (Vut, Vusway) is used for the shear design of stirrups.&lt;/span&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;32.&amp;nbsp;Does staad advanced concrete design (RCDC) consider the contributing effects&amp;nbsp;of the slab flanges in RC beam design? I examined the calculation report for some beams&amp;nbsp;and realized&amp;nbsp; the beams are designed completely as rectangular beams even when you&amp;nbsp;specify them as flange beams.&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Reply;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;RCDC can design beams with flanged action (T or L). As per design principles of flanged beam, RCDC uses this action only for mid-span bottom reinforcement.&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Effective width of flange-action is calculated as per the provisions in code for simply-supported and continuous beams.&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Below snip&amp;nbsp;shows difference where same Beam is designed with Flanged action and without Flanged action, using Indian Code as an example.&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1627567708222v2.png" /&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;33. Is there a Customized curtailment provision in RCDC ?&lt;/strong&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;Each beam&amp;nbsp;is divided and designed at-least at 13 stations i.e. 12 section; along the length of the beam.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Each section&amp;nbsp;is designed for each load combination to arrive at required areas of longitudinal reinforcement at top and bottom and shear reinforcement.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Further, the lapping locations are available as per user inputs. Default location for lapping of top reinforcement is L/4. As RCDC design the beam for 12 zones, the options of L/3, L/4 and L/6 are available for lapping at top and bottom reinforcement. &amp;nbsp;User can choose the lapping location as per design requirements.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;For any beam under consideration, as the bending moment is parabolic in nature and not a linear one, it is not feasible in RCDC to interpolate the BM &amp;quot;&lt;span style="text-decoration:underline;"&gt;in between the section length&amp;quot;&lt;/span&gt;. So,&amp;nbsp;the lapping locations provided in RCDC are all multiple of 12 i.e. L/3, L/4 &amp;amp; L/6 ---- where 12 is the number of section in which a beam is divided.&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;span&gt;RCDC provides all the Lapping location as mentioned in SP34 except for L/10 so as to avoid the interpolation of Bending moment in between a section length.&amp;nbsp;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630416097945v4.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;At top location, the lapping is provided at curtailment locations. i.e. L/3,L/4 or L/6 distance from column face. Here the distance 2xD is not checked for curtailment. If we start providing curtailments for beams as per the beam depth, it would be complicated. The curtailment location will vary as per the beam depth. The location of curtailments might fall between two stations. Checking reinforcement curtailments at any location as per 2D would not be simple and might not give the desire result. Interpolation of forces is not possible for in between values. Even if we consider on higher side, it would not be consistent to all beams and curtailments will not match the distance 2D for all beams. Also, it is very difficult to handle Ast calculations and shear check location for individual beams.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;For Bottom location, RCDC provides the lapping at face of the beam. The higher diameter rebars extends to lower diameter to make sure that the it satisfies the bending and shear check criteria. Also, the confining of the reinforcement exists up to twice the distance from the column face.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;If we provide lapping away from the twice the beam depth, it might reach in the middle zone of the beam which is also needs to avoid as it is governed by permanent loads. In this case we might need to handle ductile and Non-ductile beams separately. For ductile beam lapping will place away from the 2D and for Non-ductile it is possible to provide within 2D.&lt;/span&gt;&lt;span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Note that there is an option in RCDC to perform local curtailment by modifying the reinforcement locally for any station of a zone. On the design output window, you can click on the &amp;#39;Detail&amp;#39; feature and by double click on each zone, you can modify the &amp;#39;Top reinforcement&amp;#39;,&amp;nbsp;&amp;#39;Bottom reinforcement&amp;#39; &amp;amp; &amp;#39;Shear reinforcement&amp;#39; also.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Further, in case you want to use the same reinforcement configuration for other zone by avoiding this step, there is further tool available to &amp;#39;copy reinforcement&amp;#39; &amp;amp; then &amp;#39;paste reinforcement&amp;#39; to other beam with same size and same material used for design.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417821813v6.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417887641v8.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417924966v9.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;Refer the attached video for understanding how this can be done.&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4"&gt;communities.bentley.com/.../2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4&lt;/a&gt;&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;34. What is the purpose of the &lt;span style="text-decoration:underline;"&gt;Ignore Torsion&lt;/span&gt; feature available in RCDC Design settings and how does RCDC Consider it while designing any beam with Torsion ?&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1640242077690v3.png" /&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;RCDC reads the design forces from analysis and performs the design based on that. We are not making any changes to force values that we get. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;The feature for &amp;#39;Ignore Torsion&amp;#39; was introduced because many users argued that the torsion value we are getting from analysis may be unreal as effect of the slabs is often ignored in the analysis. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;To cater for such cases, we allow users to set a value of torsion, so that while designing RCDC ignores all the values below that value. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;If we allow users to &amp;#39;deduct&amp;#39; any value from the analysis values, that would mean we are tampering with the analysis results for design, which we want to avoid. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;We would not be introducing any such feature.&lt;em&gt; &lt;/em&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;em&gt;We would suggest using &amp;#39;Stiffness Modifiers&amp;#39; or &amp;#39;Member End Releases&amp;#39; appropriately in the analysis to actually release the effect of torsion.&lt;/em&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;35.RCDC is providing steel for beams in several layers of 12mm dia. for some beams. Instead of using greater diameter of bar and less number of layers, software is providing all layers with T12 bars.&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; This scenario happens when we select ductile design for beams. As per IS13920:2016 clause 7.1.1 (a) the largest diameter of longitudinal bar in the beam passing through or anchoring at the column. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1640768159785v3.png" /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;In RCDC as we design every element type in different module, this check was not available earlier. In recent updates we have provided this check in beam module. So, now the highest reinforcement dia permissible in beam is not greater than column dimension in the direction of beam spanning /20. So, if the dimension of column is 300mm, maximum allowable bar dia is 300 /20 = 15mm. But as 12mm and 16mm are the diameter available practically, we will use 12mm dia. If you want to use higher diameter rebar then you need to increase the size of column.&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;36.Asv required for is greater than Asv provided.&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;Refer to the attached excel sheet and the corresponding Design Calculation Report from RCDC to validate what is explained in the attached excel.&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/B274-Design-calculation-report-from-RCDC.html"&gt;communities.bentley.com/.../B274-Design-calculation-report-from-RCDC.html&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/Asv-calculation-explanation.xlsx"&gt;communities.bentley.com/.../Asv-calculation-explanation.xlsx&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
</description></item><item><title>RCDC-Beam</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam/revision/90</link><pubDate>Fri, 06 May 2022 07:05:25 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:457f06c2-8ce9-4c42-8eaa-1ecffcf29653</guid><dc:creator>Aaradhya Rahate</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/41953/rcdc-beam#comments</comments><description>Revision 90 posted to RAM | STAAD | ADINA Wiki by Aaradhya Rahate on 5/6/2022 7:05:25 AM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1647321931172v5.png" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;p&gt;​&lt;/p&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;" border="0"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
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&lt;td style="text-align:right;"&gt;&lt;b&gt;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
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&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
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&lt;/tr&gt;
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&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;STAAD Advanced Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Connect Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
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&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Concrete Design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Beam design&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;SANJIB DAS&lt;/p&gt;
&lt;p&gt;Bentley Technical Support Group&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/td&gt;
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&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1.[[If Beam shows Failure]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;1. [[Can RCDC design Curved beams? Will it convert the curved beam composed of many parts to a single physical beam?]]&lt;/p&gt;
&lt;p&gt;2. [[Can RCDC provide bottom bar without curtailment in single span?]]&lt;/p&gt;
&lt;p&gt;20.[[Designing Group of Beams can be done if the Beam arrangement is similar at all Floors.]]&lt;/p&gt;
&lt;p&gt;4. [[Can RCDC provide the detailing of beam with lowest diameter throughout the length and balance area of steel with higher diameter in other layer?]]&lt;/p&gt;
&lt;p&gt;5. [[Does RCDC allow to provide only 2 bars for top reinforcement?]]&lt;/p&gt;
&lt;p&gt;6. [[What is the purpose of mirror &amp;amp; straight option in group/ungroup tab?]]&lt;/p&gt;
&lt;p&gt;7. [[Why specifically only 13 stations (for beams) can be imported from E-tabs to RCDC?]]&lt;/p&gt;
&lt;p&gt;8. [[Side face reinforcement (SFR) is designed for beams even though the depth is less than 750mm, whether there are any options to enable/ disable side face reinforcement?]]&lt;/p&gt;
&lt;p&gt;21.[[For Non ductile and Ductile Beam]]&lt;/p&gt;
&lt;p&gt;22.[[How to calculate reinforcement of beam at face of column in RCDC?]]&lt;/p&gt;
&lt;p&gt;23.[[The Building is designed including EQ loads and STAAD RCDC is giving more reinforcement at bottom near supports as curtailed bars. Why?]]&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;24.[[Which option can be used to save the reinforcement for long span beams in RCDC?]]&lt;/p&gt;
&lt;p&gt;25.[[In RCDC Detailing option is available in Design Settings.]]&lt;/p&gt;
&lt;p&gt;26.[[Clarification regarding the curtailment of 100% top reinforcement.]]&lt;/p&gt;
&lt;p&gt;27.[[In BBS for ductile beams, there should be no lap splice within the joint and within 2D from the face of the column. (ACI 318M &amp;ndash; 14 cl. 18.6.3.3)]]&lt;/p&gt;
&lt;p&gt;9.[[Please give clarification of failure type for beam element. Failure type &amp;ndash; Shear &amp;ndash;Tc max]]&lt;/p&gt;
&lt;p&gt;28.[[Does RCDC perform the Serviceability check for allowable deflections from ACI 318M-14 Table 24.2.2 by using the effective moment of inertia from ACI 318M-14 cl. 24.2.3.5 ?]]&lt;/p&gt;
&lt;p&gt;29.[[RCDC is considering 'Zero" bending moment at left and right support despite there being some Bending moment at the support.]]&lt;/p&gt;
&lt;p&gt;20.[[How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?]]&lt;/p&gt;
&lt;p&gt;21.[[Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? ]]&lt;/p&gt;
&lt;p&gt;22.[[Does STAAD advanced concrete design (RCDC) consider the contributing effects of the slab flanges in RC beam design?]]&lt;/p&gt;
&lt;p&gt;23.[[What is the purpose of the Ignore Torsion feature available in RCDC Design setting?]]&lt;/p&gt;
&lt;p&gt;24.[[RCDC is providing steel for beams in several layers of 12mm dia. for some Beams]]&lt;/p&gt;
&lt;p&gt;25.[[Asv required for is greater than Asv provided.]]&lt;/p&gt;
&lt;p&gt;26.[[Customized curtailment provision in RCDC?]]&lt;/p&gt;
&lt;p&gt;27. [[Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?]]&lt;/p&gt;
&lt;p&gt;28. [[Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?]]&lt;/p&gt;
&lt;p&gt;29. [[Is there any option to disregard the contribution of concrete in resisting shear for beam when IS 13920-2016 is used?]]&lt;/p&gt;
&lt;p&gt;30. [[When IS 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?]]&lt;/p&gt;
&lt;p&gt;31. [[Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?]]&lt;/p&gt;
&lt;p&gt;32. [[If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value of IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns not be applicable]]&lt;/p&gt;
&lt;p&gt;33. [[Ignoring concrete capacity in beam design as per clause 6.3.4 of IS 13920-2016]]&lt;/p&gt;
&lt;p&gt;34. [[In Beam design output of stirrups, what is 2L-T8 (H)?]]&lt;/p&gt;
&lt;p&gt;35. [[If the Beams exists at support level of the structure, can it be design in RCDC?]]&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;3.Can number of bars for the given width of beam be edited?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes, User can set the number of bars as per width of section in &amp;quot;zone bar setting&amp;quot; option. It also checks the minimum and maximum spacing criteria at the same time. For more information refer Topic &amp;ldquo;Preferred Bar Spacing&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;10. Even after opting best fit for top reinforcement, why does RCDC provides higher reinforcement (as per minimum Pt) at top at mid-span?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;This would be typically doubly reinforced section which causes more reinforcement at top even when moment at that location is nominal. In the calculation report it can be clearly checked where Asc-required at mid-span is captured. This is the top reinforcement required at that section.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;11. Why default 0.2% is provided for nominal steel in RCDC? Does it have any reference?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;RCDC provides the nominal steel where bending moment is ZERO. Default value provided in RCDC for nominal steel is 0.2 %. This is an approximate Value and we have kept the value close to minimum steel in beam. The above value is editable and can be put as per user requirements. For zone with no Bending Moment, RCDC uses nominal steel and for detailing, it would adopt 2 bars with minimum diameter possible.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;12. Is there any option to disregard the contribution of concrete in resisting shear for beam when IS: 13920 is used?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;No. Beam shear design is as per IS 456. Shear induced due to Sway action is calculated as per IS 13920. For Sway shear also the part of shear is arrived from the dead and live load. Thus RCDC does not allow to ignore the concrete for shear design.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;13. When IS: 13920 is selected, does RCDC consider required rebar or provided rebar to calculate capacity (plastic) shear force (or moment capacity) for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Yes. RCDC designs the beam shear as per Clause 6.3.3 of IS 13920 and consider the reinforcement provided to calculate the moment capacity. For more information refer Topic &amp;ldquo;Calculation of Ductile Shear&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;14. Does RCDC calculates moment capacity for sway shear calculations as per rectangular section or flanged section for beam?&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;For moment capacity of section RCDC always considered as a Rectangular section as Flange section is not applicable at support. Also to get the flange action, flange has to at compression side which is not the case at support. For more information refer Topic &amp;ldquo;Flanged Beam&amp;rdquo; for beam from help Content.&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;15. If Beam is designed for axial plus biaxial forces, ideally if axial force in beam is less than the permissible value given in IS 13920 code, the member should be designed as beam only both for strength and crack width and check as per columns should not be applicable.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;Whenever design for &amp;lsquo;Biaxial Bending&amp;rsquo; is selected, RCDC would treat the design of beam like a column. There is possibility where axial forces would be negligible but lateral moment and shear would be high. In this case this member should be designed as a column only. Axial forces will not govern whether to details the member like beam or column.IS 13920 suggest to design/ details member like column as per clause 7 if axial stress exceeds 0.08ck. here the section will be detail as a column. shear (ductile) links should be calculated as per column.if axial stress less than 0.08 fck the section would be details as beam. All the links calculations would be as per beam. Further depending on Pu-threshold value set by user (the value is considered as compressive), RCDC will design the section with Pu, Mu-major and Mu-minor. If Pu for a given combination is less than Pu-threshold, it simply assumed.Pu = 0. This is only for &amp;lsquo;design combinations&amp;rsquo; or limit state of collapse.&lt;em&gt;For crack-width, there is no input for threshold value (currently there is no provision for it) of axial force. The crack-width is checked for service combinations. In this case, the values as per combinations are used for crack-width check.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;16. We accept that concrete capacity shall be ignored as per clause 6.3.4 of IS 13920-2016 but this can be logically ok if only Ductile shear governs the design.&lt;/em&gt;&lt;em&gt;In cases where DL+LL shear governs the design&amp;nbsp;(i.e. no plastic hinge evidently formed) it will be very conservative to ignore shear capacity of concrete in beam.&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;The requirement of ignoring concrete capacity is due to unpredicted forces during earthquake. The earthquake forces are instantaneous, the concrete will crack, and plastic hinge will be formed. Even after the earthquake loads, the beams will be loaded with the Dead and live loads. The cracking of concrete, the shear capacity of the bean will be depending on the shear reinforcements only. Thus, ignoring concrete capacity of the beam for shear check is applicable to all load combinations. So even the critical combination is DL+LL, the concrete capacity should be ignored&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;17. In Beam design output of stirrups, what is 2L-T8 (H)?&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;p&gt;2L-T8 (H) is the horizontal link (stirrups) provided in the beam in case if Beam is designed for Axial+ Biaxial forces.&lt;/p&gt;
&lt;p&gt;Based on the axial stress (0.08 fck) type of beam detailing is performed in RCDC. If section selected for Axial + Biaxial design in RCDC&amp;nbsp;then section&amp;nbsp;will be&amp;nbsp;designed as a column. If the section requires stirrups for horizontal shear in case of beam detailing, RCDC provides horizontal links. In case of section is detail as a column, RCDC provides the horizontal link to tie all the rebars along all faces of the section.&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;&lt;em&gt;18. If the Beams exists at support level of the structure, can it be design in RCDC?&lt;/em&gt;&lt;/strong&gt;&lt;strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;&lt;em&gt;Yes. if the Beams are present at support level, RCDC can read and design these beams. After reading the analysis file for beams, RCDC shows all the levels available in analysis file. User can select the support level for beam design. Column above the support level are considered as support for beam and accordingly beam drawings are generated.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:90px;"&gt;&lt;span style="color:#ff00ff;"&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span style="background-color:#ffffff;color:#000000;"&gt;&lt;strong&gt;30.&amp;nbsp;&amp;nbsp;&lt;/strong&gt;&lt;/span&gt;How the effective depth is calculated in beam design and what is the impact of &amp;ldquo;maximum Aggregate 2 Size&amp;rdquo; on effective depth?&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Reply:&lt;/p&gt;
&lt;p style="padding-left:90px;"&gt;&lt;img alt=" " height="118" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/aaaa.jpg" width="218" /&gt;&lt;/p&gt;
&lt;p style="padding-left:90px;"&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;RCDC assumes the number of rebars layers for the effective depth calculation based on the following,&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Assumption of number of layers of reinforcement:&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;At design time the number of layers of reinforcement&amp;nbsp;is assumed as under to arrive at the effective depth, d:&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;D &amp;lt; 400 mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 1 layer&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;400 mm &amp;gt;= &amp;nbsp;&amp;nbsp;D &amp;lt;=1200 mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 2 layers&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;1200mm &amp;gt;&amp;nbsp;D &amp;lt;= 1350 mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 3 layers&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;1350 mm &amp;gt; D &amp;lt;= 1800&amp;nbsp;mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 4 layers&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;1800 mm &amp;gt; D &amp;lt;= 2250 mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 5 layers&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;2250 mm &amp;gt; D &amp;lt;= 2700 mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 6 layers&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;2700 mm &amp;gt; D &amp;lt;= 3250 mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 7 layers&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;D &amp;gt; 3250 mm&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 8 layers&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Effective depth is calculated as follows,&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;strong&gt;Example-1&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Beam Depth (D)&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 600 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Clear cover (Cc)&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 25 mm (this includes diameter of link/stirrups/fitment)&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Maximum Aggregate 2 Size (M)&amp;nbsp; = 25 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;Assumed Diameter (d1)&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 20 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Number of layers&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 2 Nos (for 400 mm &amp;gt;= &amp;nbsp;D &amp;lt;=1200 mm)&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Space between two rebars&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = if&amp;nbsp; -- d1 &amp;gt; 2 * M / 3&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Then&amp;nbsp;&amp;nbsp;d1 is considered&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Else,&amp;nbsp;2 * M / 3&amp;nbsp; is considered&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;In the example considered,&amp;nbsp;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 20 &amp;gt; 2*25/3&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 20 &amp;gt; 16.67mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Thus, spacing between rebars is 20mm.&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;amp;&amp;nbsp;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Effective depth = D &amp;ndash; Cc - d1 &amp;ndash; M/2&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 600 &amp;ndash; 25 &amp;ndash; 20 &amp;ndash; 20/2&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 545 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;strong&gt;Example-2&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Beam Depth (D)&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 600 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Clear cover (Cc)&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 25 mm (this includes diameter of link/stirrups/fitment)&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Maximum Aggregate 2 Size (M)&amp;nbsp; = 40 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Assumed Diameter (d1)&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 20 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Number of layers&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 2 Nos.&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Space between two rebars&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = if&amp;nbsp; ---&amp;nbsp;d1 &amp;lt; 2 * M / 3&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Then&amp;nbsp;&amp;nbsp;d1&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Else,&amp;nbsp;2 * M / 3&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;In the example considered,&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 20 &amp;lt; 2*40/3&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 20 &amp;lt; 26.67mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Thus, space between rebars is 26.67 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;amp;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Effective depth = D &amp;ndash; Cc - d1 &amp;ndash; M/2&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 600 &amp;ndash; 25 &amp;ndash; 20 &amp;ndash; 26.67/2&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; = 541.665 mm&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Thus, if user expects clear spacing between rebars to be 25mm, it is recommended user to provide value of Maximum Aggregate 2 Size (M) equal to 37.5mm. (2 x 37.5 / 3 = 25mm)&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;strong&gt;31. &lt;/strong&gt;Why is RCDC taking wind load shears to do ductile detailing for earthquake loads? It should take hogging and sagging moments of receiving frame beams for the earthquake loads and calculate the sway shears for comparison of shear force with the static analysis shear force.&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;Reply&lt;strong&gt;:&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:90px;"&gt;As mentioned in 13920-2016 code, ductility criteria is to be applied to beams which are resisting the Seismic forces. Below image for reference:&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1627545593647v2.png" /&gt;&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:90px;"&gt;
&lt;p&gt;&lt;span&gt;As per above sentence all the beams on which seismic forces are applied or the beams that behaves as a part of seismic force resisting system needs to be designed for ductility. But the critical load combination can be any one; which imposes Max Flexure or Max shear on the beam. &lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;So, based on same, when Seismic forces are applied in the analysis file and also when Seismic load cases are selected for design of beams in RCDC, ductility criteria is applied.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Also, there is an option in RCDC where user can select the beams which needs to be designed for Ductility. By default, when &amp;lsquo;Ductile Design&amp;rsquo; option is selected from Design settings, RCDC selects all Primary column to column beams to be designed for Ductility criteria. &lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Going ahead, for shear design of Beams, RCDC follows below mentioned steps:&lt;/span&gt;&lt;/p&gt;
&lt;ol&gt;
&lt;li&gt;&lt;span&gt; RCDC identifies the &amp;lsquo;Max Shear&amp;rsquo; value for the considered beam from all the available load combinations. This happens for Left Mid and Right zone of the beam. &lt;/span&gt;
&lt;ol&gt;
&lt;li&gt;&lt;span&gt; To this max shear, the additional shear due to torsion is added:&lt;/span&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;/li&gt;
&lt;/ol&gt;
&lt;p style="padding-left:30px;"&gt;&lt;span&gt;Vut = Vu (from analysis) + Vtu (Shear induced due to torsion)&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ol start="2"&gt;
&lt;li&gt;&lt;span&gt; Once the Max shear is determined, RCDC will trace the load combination from where Max Shear is found and take it as critical load combination. &lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt; The sway shear (Vu sway) is calculated as below (as per IS 13920 &amp;ndash; 2016).&lt;/span&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;The simply supported shear is calculated as below for the DL and LL cases independently and added when calculating ductile shear &amp;ndash;&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;br /&gt; V-left = Shear at left end from analysis&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;V-left-ss (Shear at left end as per simply-supported action) =&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt; = V-left &amp;ndash; M-left/L + M-right/L&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;Calculation of ductile-shear at any section from left to right can be worked out as below -&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;V-x = Shear at &amp;lsquo;x&amp;rsquo; left end from analysis&lt;/span&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;V-x-ductile = Maximum of (V-x &amp;ndash; M-left/L + M-right/L &amp;ndash; Sway shear-right), (V-x &amp;ndash; M-left/L + M-right/L + Sway shear-left)&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ol start="4"&gt;
&lt;li&gt;&lt;span&gt;The final Design Shear i.e. Vud = Max (Vut, Vusway) is used for the shear design of stirrups.&lt;/span&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;32.&amp;nbsp;Does staad advanced concrete design (RCDC) consider the contributing effects&amp;nbsp;of the slab flanges in RC beam design? I examined the calculation report for some beams&amp;nbsp;and realized&amp;nbsp; the beams are designed completely as rectangular beams even when you&amp;nbsp;specify them as flange beams.&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Reply;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;RCDC can design beams with flanged action (T or L). As per design principles of flanged beam, RCDC uses this action only for mid-span bottom reinforcement.&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Effective width of flange-action is calculated as per the provisions in code for simply-supported and continuous beams.&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Below snip&amp;nbsp;shows difference where same Beam is designed with Flanged action and without Flanged action, using Indian Code as an example.&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1627567708222v2.png" /&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;33. Is there a Customized curtailment provision in RCDC ?&lt;/strong&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;Each beam&amp;nbsp;is divided and designed at-least at 13 stations i.e. 12 section; along the length of the beam.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Each section&amp;nbsp;is designed for each load combination to arrive at required areas of longitudinal reinforcement at top and bottom and shear reinforcement.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;Further, the lapping locations are available as per user inputs. Default location for lapping of top reinforcement is L/4. As RCDC design the beam for 12 zones, the options of L/3, L/4 and L/6 are available for lapping at top and bottom reinforcement. &amp;nbsp;User can choose the lapping location as per design requirements.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;For any beam under consideration, as the bending moment is parabolic in nature and not a linear one, it is not feasible in RCDC to interpolate the BM &amp;quot;&lt;span style="text-decoration:underline;"&gt;in between the section length&amp;quot;&lt;/span&gt;. So,&amp;nbsp;the lapping locations provided in RCDC are all multiple of 12 i.e. L/3, L/4 &amp;amp; L/6 ---- where 12 is the number of section in which a beam is divided.&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;span&gt;RCDC provides all the Lapping location as mentioned in SP34 except for L/10 so as to avoid the interpolation of Bending moment in between a section length.&amp;nbsp;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630416097945v4.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;At top location, the lapping is provided at curtailment locations. i.e. L/3,L/4 or L/6 distance from column face. Here the distance 2xD is not checked for curtailment. If we start providing curtailments for beams as per the beam depth, it would be complicated. The curtailment location will vary as per the beam depth. The location of curtailments might fall between two stations. Checking reinforcement curtailments at any location as per 2D would not be simple and might not give the desire result. Interpolation of forces is not possible for in between values. Even if we consider on higher side, it would not be consistent to all beams and curtailments will not match the distance 2D for all beams. Also, it is very difficult to handle Ast calculations and shear check location for individual beams.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span&gt;For Bottom location, RCDC provides the lapping at face of the beam. The higher diameter rebars extends to lower diameter to make sure that the it satisfies the bending and shear check criteria. Also, the confining of the reinforcement exists up to twice the distance from the column face.&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span&gt;If we provide lapping away from the twice the beam depth, it might reach in the middle zone of the beam which is also needs to avoid as it is governed by permanent loads. In this case we might need to handle ductile and Non-ductile beams separately. For ductile beam lapping will place away from the 2D and for Non-ductile it is possible to provide within 2D.&lt;/span&gt;&lt;span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Note that there is an option in RCDC to perform local curtailment by modifying the reinforcement locally for any station of a zone. On the design output window, you can click on the &amp;#39;Detail&amp;#39; feature and by double click on each zone, you can modify the &amp;#39;Top reinforcement&amp;#39;,&amp;nbsp;&amp;#39;Bottom reinforcement&amp;#39; &amp;amp; &amp;#39;Shear reinforcement&amp;#39; also.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Further, in case you want to use the same reinforcement configuration for other zone by avoiding this step, there is further tool available to &amp;#39;copy reinforcement&amp;#39; &amp;amp; then &amp;#39;paste reinforcement&amp;#39; to other beam with same size and same material used for design.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417821813v6.png" /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417887641v8.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1630417924966v9.png" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;Refer the attached video for understanding how this can be done.&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;&lt;i&gt;&lt;span&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4"&gt;communities.bentley.com/.../2021_2D00_08_2D00_20_5F00_13_2D00_21_2D00_42.mp4&lt;/a&gt;&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="padding-left:60px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;34. What is the purpose of the &lt;span style="text-decoration:underline;"&gt;Ignore Torsion&lt;/span&gt; feature available in RCDC Design settings and how does RCDC Consider it while designing any beam with Torsion ?&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1640242077690v3.png" /&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;RCDC reads the design forces from analysis and performs the design based on that. We are not making any changes to force values that we get. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;The feature for &amp;#39;Ignore Torsion&amp;#39; was introduced because many users argued that the torsion value we are getting from analysis may be unreal as effect of the slabs is often ignored in the analysis. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;To cater for such cases, we allow users to set a value of torsion, so that while designing RCDC ignores all the values below that value. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;If we allow users to &amp;#39;deduct&amp;#39; any value from the analysis values, that would mean we are tampering with the analysis results for design, which we want to avoid. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;We would not be introducing any such feature.&lt;em&gt; &lt;/em&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;em&gt;We would suggest using &amp;#39;Stiffness Modifiers&amp;#39; or &amp;#39;Member End Releases&amp;#39; appropriately in the analysis to actually release the effect of torsion.&lt;/em&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;35.RCDC is providing steel for beams in several layers of 12mm dia. for some beams. Instead of using greater diameter of bar and less number of layers, software is providing all layers with T12 bars.&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; This scenario happens when we select ductile design for beams. As per IS13920:2016 clause 7.1.1 (a) the largest diameter of longitudinal bar in the beam passing through or anchoring at the column. &lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1640768159785v3.png" /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;In RCDC as we design every element type in different module, this check was not available earlier. In recent updates we have provided this check in beam module. So, now the highest reinforcement dia permissible in beam is not greater than column dimension in the direction of beam spanning /20. So, if the dimension of column is 300mm, maximum allowable bar dia is 300 /20 = 15mm. But as 12mm and 16mm are the diameter available practically, we will use 12mm dia. If you want to use higher diameter rebar then you need to increase the size of column.&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;36.Asv required for is greater than Asv provided.&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;Refer to the attached excel sheet and the corresponding Design Calculation Report from RCDC to validate what is explained in the attached excel.&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/B274-Design-calculation-report-from-RCDC.html"&gt;communities.bentley.com/.../B274-Design-calculation-report-from-RCDC.html&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="padding-left:30px;"&gt;&lt;span&gt;&lt;strong&gt;&lt;span style="background-color:#ffffff;"&gt;&lt;a href="https://communities.bentley.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/Asv-calculation-explanation.xlsx"&gt;communities.bentley.com/.../Asv-calculation-explanation.xlsx&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Ductile design, RCDC, SFR, beam, Flange, IS code, FAQ's, biaxial bending&lt;/div&gt;
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