<?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>13. What is the difference regarding seismic calculation between SLS (Serviceability Limit State) and ULS (Ultimate Limit State) when using AutoPIPE Vessel?</title><link>https://communities.bentley.com/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/35785/13-what-is-the-difference-regarding-seismic-calculation-between-sls-serviceability-limit-state-and-uls-ultimate-limit-state-when-using-autopipe-vessel</link><description /><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>13. What is the difference regarding seismic calculation between SLS (Serviceability Limit State) and ULS (Ultimate Limit State) when using AutoPIPE Vessel?</title><link>https://communities.bentley.com/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/35785/13-what-is-the-difference-regarding-seismic-calculation-between-sls-serviceability-limit-state-and-uls-ultimate-limit-state-when-using-autopipe-vessel</link><pubDate>Tue, 25 Aug 2020 19:28:49 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a0b7d559-36c9-4051-a3ea-363415c02784</guid><dc:creator>JamieP</dc:creator><comments>https://communities.bentley.com/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/35785/13-what-is-the-difference-regarding-seismic-calculation-between-sls-serviceability-limit-state-and-uls-ultimate-limit-state-when-using-autopipe-vessel#comments</comments><description>Current Revision posted to AutoPIPE Wiki by JamieP on 8/25/2020 7:28:49 PM&lt;br /&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;"&gt;
&lt;tbody&gt;
&lt;tr&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;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;AutoPIPE Vessel&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;ALL&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment: &lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N/A&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Bentley Technical Support Group&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Date Logged&lt;br /&gt;&amp;amp; Current Version&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;July. 2017&lt;br /&gt;40.03.00.08&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;h1&gt;&lt;span style="color:#993300;text-decoration:underline;"&gt;&lt;strong&gt;Problem:&lt;/strong&gt;&lt;/span&gt;&lt;/h1&gt;
&lt;p style="margin-left:60px;"&gt;Except for accelerations which are different, what is the difference regarding seismic calculation between SLS (Serviceability Limit State) and ULS (Ultimate Limit State)?&lt;br /&gt;Should I input a specific spectrum or a specific vertical acceleration?&lt;/p&gt;
&lt;h1&gt;&lt;span style="color:#993300;text-decoration:underline;"&gt;&lt;strong&gt;Solution:&lt;/strong&gt;&lt;/span&gt;&lt;/h1&gt;
&lt;p style="margin-left:60px;"&gt;Suggest that only the factors to generate the spectra are different between SLS and ULS. Therefore, the accelerations are going to be different, however&amp;nbsp;rest of the seismic calcs are same for RSA&lt;br /&gt; &lt;br /&gt;RSA=response spectra analysis&lt;br /&gt; &lt;br /&gt;The reason the factors are different is because of the risk factors used in generating spectra&amp;nbsp;risk factor is a derivative of return period and % of probable occurrence like 7% PE in 100 years or 10% in 200 years etc. &amp;quot;&lt;/p&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;strong&gt;&lt;a href="/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/18651.general-modeling-questions-in-autopipe-vessel"&gt;General Modeling questions&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;a title="LEARN Server" href="http://lms.bentley.com/"&gt;&lt;b&gt;Bentley LEARN Server&lt;/b&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;&lt;b&gt;&lt;a href="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-41/pastedimage1499793593722v1.png"&gt;&lt;img alt=" " src="/resized-image/__size/189x60/__key/communityserver-wikis-components-files/00-00-00-00-41/pastedimage1499793593722v1.png" /&gt;&lt;/a&gt;&lt;/b&gt;&lt;/h1&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Load Case, AutoPIPE Vessel, earthquake, Response Spectrum, seismic&lt;/div&gt;
</description></item><item><title>Q. What is the difference regarding seismic calculation between SLS (Serviceability Limit State) and ULS (Ultimate Limit State) when using AutoPIPE Vessel?</title><link>https://communities.bentley.com/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/35785/13-what-is-the-difference-regarding-seismic-calculation-between-sls-serviceability-limit-state-and-uls-ultimate-limit-state-when-using-autopipe-vessel/revision/2</link><pubDate>Wed, 26 Jun 2019 00:33:43 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a0b7d559-36c9-4051-a3ea-363415c02784</guid><dc:creator>Mike Dattilio</dc:creator><comments>https://communities.bentley.com/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/35785/13-what-is-the-difference-regarding-seismic-calculation-between-sls-serviceability-limit-state-and-uls-ultimate-limit-state-when-using-autopipe-vessel#comments</comments><description>Revision 2 posted to AutoPIPE Wiki by Mike Dattilio on 6/26/2019 12:33:43 AM&lt;br /&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;"&gt;
&lt;tbody&gt;
&lt;tr&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;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;AutoPIPE Vessel&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;ALL&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment: &lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N/A&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Bentley Technical Support Group&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Date Logged&lt;br /&gt;&amp;amp; Current Version&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;July. 2017&lt;br /&gt;40.03.00.08&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;h1&gt;&lt;span style="color:#993300;text-decoration:underline;"&gt;&lt;strong&gt;Problem:&lt;/strong&gt;&lt;/span&gt;&lt;/h1&gt;
&lt;p style="margin-left:60px;"&gt;Except for accelerations which are different, what is the difference regarding seismic calculation between SLS (Serviceability Limit State) and ULS (Ultimate Limit State)?&lt;br /&gt;Should I input a specific spectrum or a specific vertical acceleration?&lt;/p&gt;
&lt;h1&gt;&lt;span style="color:#993300;text-decoration:underline;"&gt;&lt;strong&gt;Solution:&lt;/strong&gt;&lt;/span&gt;&lt;/h1&gt;
&lt;p style="margin-left:60px;"&gt;Suggest that only the factors to generate the spectra are different between SLS and ULS. Therefore, the accelerations are going to be different, however&amp;nbsp;rest of the seismic calcs are same for RSA&lt;br /&gt; &lt;br /&gt;RSA=response spectra analysis&lt;br /&gt; &lt;br /&gt;The reason the factors are different is because of the risk factors used in generating spectra&amp;nbsp;risk factor is a derivative of return period and % of probable occurrence like 7% PE in 100 years or 10% in 200 years etc. &amp;quot;&lt;/p&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;strong&gt;&lt;a href="/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/18651.general-modeling-questions-in-autopipe-vessel"&gt;General Modeling questions&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;a title="LEARN Server" href="http://lms.bentley.com/"&gt;&lt;b&gt;Bentley LEARN Server&lt;/b&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;&lt;b&gt;&lt;a href="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-41/pastedimage1499793593722v1.png"&gt;&lt;img alt=" " src="/resized-image/__size/189x60/__key/communityserver-wikis-components-files/00-00-00-00-41/pastedimage1499793593722v1.png" /&gt;&lt;/a&gt;&lt;/b&gt;&lt;/h1&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Load Case, AutoPIPE Vessel, earthquake, Response Spectrum, seismic&lt;/div&gt;
</description></item><item><title>17. What is the difference regarding seismic calculation between SLS (Serviceability Limit State) and ULS (Ultimate Limit State) when using AutoPIPE Vessel?</title><link>https://communities.bentley.com/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/35785/13-what-is-the-difference-regarding-seismic-calculation-between-sls-serviceability-limit-state-and-uls-ultimate-limit-state-when-using-autopipe-vessel/revision/1</link><pubDate>Tue, 11 Jul 2017 17:24:16 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a0b7d559-36c9-4051-a3ea-363415c02784</guid><dc:creator>Mike Dattilio</dc:creator><comments>https://communities.bentley.com/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/35785/13-what-is-the-difference-regarding-seismic-calculation-between-sls-serviceability-limit-state-and-uls-ultimate-limit-state-when-using-autopipe-vessel#comments</comments><description>Revision 1 posted to AutoPIPE Wiki by Mike Dattilio on 7/11/2017 5:24:16 PM&lt;br /&gt;
&lt;table style="background-color:#dce5f0;border:0px solid #dce5f0;width:500px;"&gt;
&lt;tbody&gt;
&lt;tr&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;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;AutoPIPE Vessel&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;ALL&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment: &lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N/A&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Bentley Technical Support Group&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Date Logged&lt;br /&gt;&amp;amp; Current Version&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;July. 2017&lt;br /&gt;40.03.00.08&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;h1&gt;&lt;span style="color:#993300;text-decoration:underline;"&gt;&lt;strong&gt;Problem:&lt;/strong&gt;&lt;/span&gt;&lt;/h1&gt;
&lt;p style="margin-left:60px;"&gt;Except for accelerations which are different, what is the difference regarding seismic calculation between SLS (Serviceability Limit State) and ULS (Ultimate Limit State)?&lt;br /&gt;Should I input a specific spectrum or a specific vertical acceleration?&lt;/p&gt;
&lt;h1&gt;&lt;span style="color:#993300;text-decoration:underline;"&gt;&lt;strong&gt;Solution:&lt;/strong&gt;&lt;/span&gt;&lt;/h1&gt;
&lt;p style="margin-left:60px;"&gt;Suggest that only the factors to generate the spectra are different between SLS and ULS. Therefore, the accelerations are going to be different, however&amp;nbsp;rest of the seismic calcs are same for RSA&lt;br /&gt; &lt;br /&gt;RSA=response spectra analysis&lt;br /&gt; &lt;br /&gt;The reason the factors are different is because of the risk factors used in generating spectra&amp;nbsp;risk factor is a derivative of return period and % of probable occurrence like 7% PE in 100 years or 10% in 200 years etc. &amp;quot;&lt;/p&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;strong&gt;&lt;a href="/products/pipe_stress_analysis/w/pipe_stress_analysis__wiki/18651.general-modeling-questions-in-autopipe-vessel"&gt;General Modeling questions&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;a title="LEARN Server" href="http://lms.bentley.com/"&gt;&lt;b&gt;Bentley LEARN Server&lt;/b&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;&lt;b&gt;&lt;a href="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-41/pastedimage1499793593722v1.png"&gt;&lt;img src="/resized-image/__size/189x60/__key/communityserver-wikis-components-files/00-00-00-00-41/pastedimage1499793593722v1.png" alt=" " /&gt;&lt;/a&gt;&lt;/b&gt;&lt;/h1&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Load Case, AutoPIPE Vessel, earthquake, Response Spectrum, seismic&lt;/div&gt;
</description></item></channel></rss>