<?xml version="1.0" encoding="UTF-8" ?>
<?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>10. RStock - Rolling Stock / Bridges for HSR - High Speed Rail</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail</link><description /><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>10. RStock - Rolling Stock / Bridges for HSR - High Speed Rail</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail</link><pubDate>Fri, 22 Apr 2022 02:22:31 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:399f24c7-60d9-42ea-a29e-16e7ce492a39</guid><dc:creator>MarcosBeier</dc:creator><comments>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail#comments</comments><description>Current Revision posted to LARS | LEAP | OpenBridge | OpenTunnel | RM Wiki by MarcosBeier on 4/22/2022 2:22:31 AM&lt;br /&gt;
&lt;p&gt;The 10th Training Example option in &lt;strong&gt;&lt;em&gt;RM Bridge Enterprise&lt;/em&gt;&lt;/strong&gt;&amp;nbsp;is 10. RStock - Rolling Stock and it&amp;#39;s an advanced training example for a series of&amp;nbsp;dynamic analyses of a bridge model under an HSR - High-Speed Rail system. It can be accessed under File\Example\TrainingExamples&amp;nbsp;10. RStock - Rolling Stock, as shown in the screenshots&amp;nbsp;below.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/324x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085495v3.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt=" " src="/resized-image/__size/215x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085496v4.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;The RSA - Rolling Stock Analysis is known as a series of dynamic analyses of all the possible moving loads considering the train configurations and speeds.&amp;nbsp;&lt;/strong&gt;&lt;span style="text-decoration:underline;"&gt;For HSR bridges it&amp;#39;s well known that the trains with high mass and high velocity usually cause an intricate structural interaction with the bridge structure. In this scenario, the static analysis is frequently insufficient, even for&amp;nbsp;very simple structures, due to likely resonance effects.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSA" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSA.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;img alt="RSL" height="132" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSL.jpg" width="295" /&gt;&lt;/p&gt;
&lt;p&gt;The image above&amp;nbsp;illustrates the analysis of the response behavior for&amp;nbsp;one specific point in the structure for one trainload configuration with one velocity. As shown in the table above, several load train types with a different number of wagons, wagon length, axle distance, and axle load must be analyzed.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;One&amp;nbsp;bridge structure RSA - Rolling Stock Analysis is&amp;nbsp;the dynamic&amp;nbsp;evaluation of multiple possible load train configurations at different feasible high speeds. &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;This analysis of a moving load effect&amp;nbsp;is quite demanding computationally because it involves several TH - Time History analyses&amp;nbsp;for&amp;nbsp;the multiple possible&amp;nbsp;scenarios needed to&amp;nbsp;ascertain&amp;nbsp;which combination of load train configuration and train passage speed causes the worst case for&amp;nbsp;the key&amp;nbsp;elements, positions, and directions. National design codes usually limit the acceleration limits due to fatigue and&amp;nbsp;user comfort criteria.&amp;nbsp;The table below shows one example of different train configurations and speeds for one structure and the plot indicates the relevant cases with structural&amp;nbsp;resonance.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858252614v5.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSV" height="200" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSV.jpg" width="190" /&gt;&lt;/p&gt;
&lt;p&gt;The necessary structural model level of&amp;nbsp;detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses, and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts &lt;em&gt;RM Bridge&lt;/em&gt; offers in \&lt;em&gt;Extras&lt;/em&gt; a &lt;em&gt;Fast Rolling Stock Analysis&lt;/em&gt; for detecting&amp;nbsp;resonance cases. Then, the detailed TH can&amp;nbsp;be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis. More information can be found in the Training document.&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSE" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSE.jpg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSPdf" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSPdf.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: analysis, RM, rail, Eigenvalues, THA, Eigen, moving loads, Rolling Stock, OpenBridge Designer, time history, HSR, RM Bridge, Fast Rolling Stock, TH, Eigenmodes, RM Bridge Enterprise, RSA, High Speed Rail, eigenanalysis&lt;/div&gt;
</description></item><item><title>10. RStock - Rolling Stock / Bridges for HSR - High Speed Rail</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail/revision/6</link><pubDate>Wed, 30 Mar 2022 19:36:04 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:399f24c7-60d9-42ea-a29e-16e7ce492a39</guid><dc:creator>MarcosBeier</dc:creator><comments>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail#comments</comments><description>Revision 6 posted to LARS | LEAP | OpenBridge | OpenTunnel | RM Wiki by MarcosBeier on 3/30/2022 7:36:04 PM&lt;br /&gt;
&lt;p&gt;The 10th Training Example option in &lt;strong&gt;&lt;em&gt;RM Bridge Enterprise&lt;/em&gt;&lt;/strong&gt;&amp;nbsp;is 10. RStock - Rolling Stock and it&amp;#39;s an advance training example for a series of&amp;nbsp;dynamic analysis of a bridge model under a HSR - High Speed Rail system. It can be accessed under File\Example\TrainingExamples&amp;nbsp;10. RStock - Rolling Stock, as shown in the screenshots&amp;nbsp;below.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/324x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085495v3.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt=" " src="/resized-image/__size/215x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085496v4.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration:underline;"&gt;For HSR bridges it&amp;#39;s well known that the trains with high mass and high velocity usually cause an intricate structural interaction with the bridge structure. In this scenario, the static analysis is frequently insufficient, even for&amp;nbsp;very simple structures, due to likely resonance effects.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSA" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSA.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;img alt="RSL" height="132" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSL.jpg" width="295" /&gt;&lt;/p&gt;
&lt;p&gt;The image above&amp;nbsp;illustrate the analysis of the response behavior for&amp;nbsp;one specific point in the structure for one train load configuration with one velocity. As shown in the table above, several load train types with different number of wagons, wagon length, axle distance and axle load must be analyzed.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;One&amp;nbsp;bridge structure RSA - Rolling Stock Analysis is&amp;nbsp;the dynamic&amp;nbsp;evaluation of multiple possible load train configurations at different feasible high speeds. &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;This analysis of a moving load effect&amp;nbsp;is quite demanding computationally because it involves several TH - Time History analysis&amp;nbsp;for&amp;nbsp;the multiple possible&amp;nbsp;scenarios needed to&amp;nbsp;ascertain&amp;nbsp;which combination of load train configuration and train passage speed causes the worst case for&amp;nbsp;the key&amp;nbsp;elements, positions and directions. National design codes usually limit the acceleration limits due to fatigue and&amp;nbsp;user comfort criteria.&amp;nbsp;The table below shows one example of different train configurations and speeds for one structure and the plot indicate the relevant cases with structural&amp;nbsp;resonance.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858252614v5.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSV" height="200" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSV.jpg" width="190" /&gt;&lt;/p&gt;
&lt;p&gt;The necessary structural model level of&amp;nbsp;detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts &lt;em&gt;RM Bridge&lt;/em&gt; offers in \&lt;em&gt;Extras&lt;/em&gt; a &lt;em&gt;Fast Rolling Stock Analysis&lt;/em&gt; for detecting&amp;nbsp;resonance cases. Then, the detailed TH can&amp;nbsp;be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis. More information can be found in the Training document.&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSE" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSE.jpg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSPdf" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSPdf.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: analysis, RM, rail, Eigenvalues, THA, Eigen, moving loads, Rolling Stock, OpenBridge Designer, time history, HSR, RM Bridge, Fast Rolling Stock, TH, Eigenmodes, RM Bridge Enterprise, RSA, High Speed Rail, eigenanalysis&lt;/div&gt;
</description></item><item><title>RStock - Rolling Stock / Bridges for HSR - High Speed Rail</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail/revision/5</link><pubDate>Wed, 01 Dec 2021 00:40:38 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:399f24c7-60d9-42ea-a29e-16e7ce492a39</guid><dc:creator>MarcosBeier</dc:creator><comments>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail#comments</comments><description>Revision 5 posted to LARS | LEAP | OpenBridge | OpenTunnel | RM Wiki by MarcosBeier on 12/1/2021 12:40:38 AM&lt;br /&gt;
&lt;p&gt;The 10th Training Example option in &lt;strong&gt;&lt;em&gt;RM Bridge Enterprise&lt;/em&gt;&lt;/strong&gt;&amp;nbsp;is 10. RStock - Rolling Stock and it&amp;#39;s an advance training example for a series of&amp;nbsp;dynamic analysis of a bridge model under a HSR - High Speed Rail system. It can be accessed under File\Example\TrainingExamples&amp;nbsp;10. RStock - Rolling Stock, as shown in the screenshots&amp;nbsp;below.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/324x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085495v3.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt=" " src="/resized-image/__size/215x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085496v4.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration:underline;"&gt;For HSR bridges it&amp;#39;s well known that the trains with high mass and high velocity usually cause an intricate structural interaction with the bridge structure. In this scenario, the static analysis is frequently insufficient, even for&amp;nbsp;very simple structures, due to likely resonance effects.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSA" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSA.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;img alt="RSL" height="132" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSL.jpg" width="295" /&gt;&lt;/p&gt;
&lt;p&gt;The image above&amp;nbsp;illustrate the analysis of the response behavior for&amp;nbsp;one specific point in the structure for one train load configuration with one velocity. As shown in the table above, several load train types with different number of wagons, wagon length, axle distance and axle load must be analyzed.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;One&amp;nbsp;bridge structure RSA - Rolling Stock Analysis is&amp;nbsp;the dynamic&amp;nbsp;evaluation of multiple possible load train configurations at different feasible high speeds. &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;This analysis of a moving load effect&amp;nbsp;is quite demanding computationally because it involves several TH - Time History analysis&amp;nbsp;for&amp;nbsp;the multiple possible&amp;nbsp;scenarios needed to&amp;nbsp;ascertain&amp;nbsp;which combination of load train configuration and train passage speed causes the worst case for&amp;nbsp;the key&amp;nbsp;elements, positions and directions. National design codes usually limit the acceleration limits due to fatigue and&amp;nbsp;user comfort criteria.&amp;nbsp;The table below shows one example of different train configurations and speeds for one structure and the plot indicate the relevant cases with structural&amp;nbsp;resonance.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858252614v5.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSV" height="200" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSV.jpg" width="190" /&gt;&lt;/p&gt;
&lt;p&gt;The necessary structural model level of&amp;nbsp;detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts &lt;em&gt;RM Bridge&lt;/em&gt; offers in \&lt;em&gt;Extras&lt;/em&gt; a &lt;em&gt;Fast Rolling Stock Analysis&lt;/em&gt; for detecting&amp;nbsp;resonance cases. Then, the detailed TH can&amp;nbsp;be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis. More information can be found in the Training document.&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSE" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSE.jpg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSPdf" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSPdf.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: analysis, RM, rail, Eigenvalues, THA, Eigen, moving loads, Rolling Stock, OpenBridge Designer, time history, HSR, RM Bridge, Fast Rolling Stock, TH, Eigenmodes, RM Bridge Enterprise, RSA, High Speed Rail, eigenanalysis&lt;/div&gt;
</description></item><item><title>RStock - Rolling Stock / Bridges for HSR - High Speed Rail</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail/revision/4</link><pubDate>Wed, 16 Jun 2021 15:51:49 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:399f24c7-60d9-42ea-a29e-16e7ce492a39</guid><dc:creator>MarcosBeier</dc:creator><comments>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail#comments</comments><description>Revision 4 posted to LARS | LEAP | OpenBridge | OpenTunnel | RM Wiki by MarcosBeier on 6/16/2021 3:51:49 PM&lt;br /&gt;
&lt;p&gt;The 10th Training Example option is 10. RStock - Rolling Stock and it&amp;#39;s an advance training example for a series of&amp;nbsp;dynamic analysis of a bridge model under a HSR - High Speed Rail system. It can be accessed under File\Example\TrainingExamples&amp;nbsp;10. RStock - Rolling Stock, as shown in the screenshots&amp;nbsp;below.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/324x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085495v3.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt=" " src="/resized-image/__size/215x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085496v4.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration:underline;"&gt;For HSR bridges it&amp;#39;s well known that the trains with high mass and high velocity usually cause an intricate structural interaction with the bridge structure. In this scenario, the static analysis is frequently insufficient, even for&amp;nbsp;very simple structures, due to likely resonance effects.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSA" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSA.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;One&amp;nbsp;bridge structure RSA - Rolling Stock Analysis is&amp;nbsp;the dynamic&amp;nbsp;evaluation of multiple possible load train configurations at different feasible high speeds.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;This analysis of a moving load effect&amp;nbsp;is quite demanding computationally because it involves several TH - Time History analysis&amp;nbsp;for&amp;nbsp;the multiple possible&amp;nbsp;scenarios needed to&amp;nbsp;ascertain&amp;nbsp;which combination of load train configuration and train passage speed causes the worst case for&amp;nbsp;the key&amp;nbsp;elements, positions and directions. National design codes usually limit the acceleration limits due to fatigue and&amp;nbsp;user comfort criteria.&amp;nbsp;Several load train types with different number of wagons, wagon length, axle distance and axle load must be analyzed.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858252614v5.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;The necessary structural model level of&amp;nbsp;detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts &lt;em&gt;RM Bridge&lt;/em&gt; offers in \&lt;em&gt;Extras&lt;/em&gt; a &lt;em&gt;Fast Rolling Stock Analysis&lt;/em&gt; for detecting&amp;nbsp;resonance cases. Then, the detailed TH can&amp;nbsp;be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis. More information can be found in the Training document.&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSE" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSE.jpg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSPdf" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSPdf.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: analysis, RM, rail, Eigenvalues, THA, Eigen, moving loads, Rolling Stock, OpenBridge Designer, time history, HSR, RM Bridge, Fast Rolling Stock, TH, Eigenmodes, RM Bridge Enterprise, RSA, High Speed Rail, eigenanalysis&lt;/div&gt;
</description></item><item><title>RStock - Rolling Stock / Bridges for HSR - High Speed Rail</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail/revision/3</link><pubDate>Wed, 16 Jun 2021 15:48:13 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:399f24c7-60d9-42ea-a29e-16e7ce492a39</guid><dc:creator>MarcosBeier</dc:creator><comments>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail#comments</comments><description>Revision 3 posted to LARS | LEAP | OpenBridge | OpenTunnel | RM Wiki by MarcosBeier on 6/16/2021 3:48:13 PM&lt;br /&gt;
&lt;p&gt;The 10th Training Example option is 10. RStock - Rolling Stock and it&amp;#39;s an advance training example for a series of&amp;nbsp;dynamic analysis of a bridge model under a HSR - High Speed Rail system. It can be accessed under File\Example\TrainingExamples&amp;nbsp;10. RStock - Rolling Stock, as shown in the screenshots&amp;nbsp;below.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/324x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085495v3.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt=" " src="/resized-image/__size/215x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085496v4.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration:underline;"&gt;For HSR bridges it&amp;#39;s well known that the trains with high mass and high velocity usually cause an intricate structural interaction with the bridge structure. In this scenario the static analysis is frequently insufficient even for the more simple structures due to the likely resonance effects.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSA" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSA.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;One&amp;nbsp;bridge structure RSA - Rolling Stock Analysis is&amp;nbsp;the dynamic&amp;nbsp;evaluation of multiple possible load train configurations at different feasible high speeds.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;This analysis of a moving load effect&amp;nbsp;is quite demanding computationally because it involves several TH - Time History analysis&amp;nbsp;for&amp;nbsp;the multiple possible&amp;nbsp;scenarios needed to&amp;nbsp;ascertain&amp;nbsp;which combination of load train configuration and train passage speed causes the worst case for&amp;nbsp;the key&amp;nbsp;elements, positions and directions. National design codes usually limit the acceleration limits due to fatigue and&amp;nbsp;user comfort criteria.&amp;nbsp;Several load train types with different number of wagons, wagon length, axle distance and axle load must be analyzed.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858252614v5.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;The necessary structural model level of&amp;nbsp;detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts &lt;em&gt;RM Bridge&lt;/em&gt; offers in \&lt;em&gt;Extras&lt;/em&gt; a &lt;em&gt;Fast Rolling Stock Analysis&lt;/em&gt; for detecting&amp;nbsp;resonance cases. Then, the detailed TH can&amp;nbsp;be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis. More information can be found in the Training document.&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSE" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSE.jpg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt="RSPdf" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSPdf.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: analysis, RM, rail, Eigenvalues, THA, Eigen, moving loads, Rolling Stock, OpenBridge Designer, time history, HSR, RM Bridge, Fast Rolling Stock, TH, Eigenmodes, RM Bridge Enterprise, RSA, High Speed Rail, eigenanalysis&lt;/div&gt;
</description></item><item><title>RStock - Rolling Stock / Bridges for HSR - High Speed Rail</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail/revision/2</link><pubDate>Wed, 16 Jun 2021 15:46:14 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:399f24c7-60d9-42ea-a29e-16e7ce492a39</guid><dc:creator>MarcosBeier</dc:creator><comments>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail#comments</comments><description>Revision 2 posted to LARS | LEAP | OpenBridge | OpenTunnel | RM Wiki by MarcosBeier on 6/16/2021 3:46:14 PM&lt;br /&gt;
&lt;p&gt;The 10th Training Example option is 10. RStock - Rolling Stock and it&amp;#39;s an advance training example for a series of&amp;nbsp;dynamic analysis of a bridge model under a HSR - High Speed Rail system. It can be accessed under File\Example\TrainingExamples&amp;nbsp;10. RStock - Rolling Stock, as shown in the screenshots&amp;nbsp;below.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/324x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085495v3.jpeg" /&gt;&amp;nbsp;&amp;nbsp; &lt;img alt=" " src="/resized-image/__size/215x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085496v4.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration:underline;"&gt;For HSR bridges it&amp;#39;s well known that the trains with high mass and high velocity usually cause an intricate structural interaction with the bridge structure. In this scenario the static analysis is frequently insufficient even for the more simple structures due to the likely resonance effects.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSA" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSA.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;One&amp;nbsp;bridge structure RSA - Rolling Stock Analysis is&amp;nbsp;the dynamic&amp;nbsp;evaluation of multiple possible load train configurations at different feasible high speeds.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;This analysis of a moving load effect&amp;nbsp;is quite demanding computationally because it involves several TH - Time History analysis&amp;nbsp;for&amp;nbsp;the multiple possible&amp;nbsp;scenarios needed to&amp;nbsp;ascertain&amp;nbsp;which combination of load train configuration and train passage speed causes the worst case for&amp;nbsp;the key&amp;nbsp;elements, positions and directions. National design codes usually limit the acceleration limits due to fatigue and&amp;nbsp;user comfort criteria.&amp;nbsp;Several load train types with different number of wagons, wagon length, axle distance and axle load must be analyzed.&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858252614v5.jpeg" /&gt;&lt;/p&gt;
&lt;p&gt;The necessary structural model level of&amp;nbsp;detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts &lt;em&gt;RM Bridge&lt;/em&gt; offers in \&lt;em&gt;Extras&lt;/em&gt; a &lt;em&gt;Fast Rolling Stock Analysis&lt;/em&gt; for detecting&amp;nbsp;resonance cases. Then, the detailed TH can&amp;nbsp;be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis. More information can be found in the Training document.&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSPdf" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSPdf.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: analysis, RM, rail, THA, moving loads, Rolling Stock, OpenBridge Designer, time history, HSR, RM Bridge, Fast Rolling Stock, TH, RM Bridge Enterprise, RSA, High Speed Rail&lt;/div&gt;
</description></item><item><title>RStock - Rolling Stock</title><link>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail/revision/1</link><pubDate>Wed, 16 Jun 2021 15:45:16 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:399f24c7-60d9-42ea-a29e-16e7ce492a39</guid><dc:creator>MarcosBeier</dc:creator><comments>https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/55044/10-rstock---rolling-stock-bridges-for-hsr---high-speed-rail#comments</comments><description>Revision 1 posted to LARS | LEAP | OpenBridge | OpenTunnel | RM Wiki by MarcosBeier on 6/16/2021 3:45:16 PM&lt;br /&gt;
&lt;p&gt;The 10th Training Example option is 10. RStock - Rolling Stock and it&amp;#39;s an advance training example for a series of&amp;nbsp;dynamic analysis of a bridge model under a HSR - High Speed Rail system. It can be accessed under File\Example\TrainingExamples&amp;nbsp;10. RStock - Rolling Stock, as shown in the screenshots&amp;nbsp;below.&lt;/p&gt;
&lt;p&gt;&lt;img src="/resized-image/__size/324x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085495v3.jpeg" alt=" " /&gt;&amp;nbsp;&amp;nbsp; &lt;img src="/resized-image/__size/215x175/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858085496v4.jpeg" alt=" " /&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration:underline;"&gt;For HSR bridges it&amp;#39;s well known that the trains with high mass and high velocity usually cause an intricate structural interaction with the bridge structure. In this scenario the static analysis is frequently insufficient even for the more simple structures due to the likely resonance effects.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSA" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSA.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;One&amp;nbsp;bridge structure RSA - Rolling Stock Analysis is&amp;nbsp;the dynamic&amp;nbsp;evaluation of multiple possible load train configurations at different feasible high speeds.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;This analysis of a moving load effect&amp;nbsp;is quite demanding computationally because it involves several TH - Time History analysis&amp;nbsp;for&amp;nbsp;the multiple possible&amp;nbsp;scenarios needed to&amp;nbsp;ascertain&amp;nbsp;which combination of load train configuration and train passage speed causes the worst case for&amp;nbsp;the key&amp;nbsp;elements, positions and directions. National design codes usually limit the acceleration limits due to fatigue and&amp;nbsp;user comfort criteria.&amp;nbsp;Several load train types with different number of wagons, wagon length, axle distance and axle load must be analyzed.&lt;/p&gt;
&lt;p&gt;&lt;img src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/pastedimage1623858252614v5.jpeg" alt=" " /&gt;&lt;/p&gt;
&lt;p&gt;The necessary structural model level of&amp;nbsp;detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts &lt;em&gt;RM Bridge&lt;/em&gt; offers in \&lt;em&gt;Extras&lt;/em&gt; a &lt;em&gt;Fast Rolling Stock Analysis&lt;/em&gt; for detecting&amp;nbsp;resonance cases. Then, the detailed TH can&amp;nbsp;be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis. More information can be found in the Training document.&lt;/p&gt;
&lt;p&gt;&lt;img alt="RSPdf" src="/resized-image/__size/320x240/__key/communityserver-wikis-components-files/00-00-00-00-15/RSPdf.jpg" /&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: analysis, RM, rail, THA, moving loads, Rolling Stock, OpenBridge Designer, time history, HSR, RM Bridge, Fast Rolling Stock, TH, RM Bridge Enterprise, RSA, High Speed Rail&lt;/div&gt;
</description></item></channel></rss>