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  <channel>
    <title>topic Re: class 4 cross section design in Robot Structural Analysis Forum</title>
    <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5424782#M70440</link>
    <description>&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;why robot asks for stiffeners whereas calculations are correct?&lt;/P&gt;&lt;P&gt;According 5.1 (2), webs without stiffeners are allowed.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;EM&gt;"RESISTANCE AU VOILEMENT PAR CISAILLEMENT (EC3 article 5)&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Symboles:&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Lam_w&amp;nbsp;&amp;nbsp; &amp;nbsp;- élancement relatif de l'âme&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(5)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;kT&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient pour les conditions de voilement par cisaillement&amp;nbsp;&amp;nbsp; &amp;nbsp;[A.3.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xw&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient d'influence sur la résistance pour le cisaillement (âme)&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.3.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xf&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient d'influence sur la résistance pour le cisaillement (aile)&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.4.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xv&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient d'instabilité pour le cisaillement&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Mf,Rd&amp;nbsp;&amp;nbsp; &amp;nbsp;- résistance de calcul des ailes de la section&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.4.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;VEd&amp;nbsp;&amp;nbsp; &amp;nbsp;- effort tranchant maximal dans le panneau&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Vb,Rd&amp;nbsp;&amp;nbsp; &amp;nbsp;- résistance de calcul au voilement par cisaillement&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;EM&gt;Panneau A&amp;nbsp;&amp;nbsp; &amp;nbsp;Coordonnées du panneau A&amp;nbsp;&amp;nbsp; &amp;nbsp;x = (0.00 ; 1.00)&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Point&amp;nbsp;&amp;nbsp; x = 0.00 m&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;&lt;SPAN&gt;&lt;SPAN&gt;&lt;STRONG&gt;Conformément à l'article 5.1.(2), il faut utiliser les raidisseurs transversaux sur appuis&lt;/STRONG&gt;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;kT = 5.34&amp;nbsp;&amp;nbsp; &amp;nbsp;Lam_w = 1.53&amp;nbsp;&amp;nbsp; &amp;nbsp;Xw = 0.54&amp;nbsp;&amp;nbsp; &amp;nbsp;Xf = 0.00&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xv = 0.54&amp;nbsp;&amp;nbsp; &amp;nbsp;Mf,Rd = 28796.90 daN*m&amp;nbsp;&amp;nbsp; &amp;nbsp;VEd = 11255.67 daN&amp;nbsp;&amp;nbsp; &amp;nbsp;Vb,Rd = 24350.94 daN&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Cas de charge décisif: 12 ELU /18/&amp;nbsp; 1*1.00 + 7*1.50&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Condition de vérification:&amp;nbsp;&amp;nbsp; VEd = 11255.67 daN&amp;nbsp; &amp;lt;&amp;nbsp; Vb,Rd = 24350.94 daN&amp;nbsp;&amp;nbsp; &amp;nbsp;&lt;SPAN&gt;&lt;STRONG&gt;OK !&lt;/STRONG&gt;&lt;/SPAN&gt;"&lt;/EM&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;thanks&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;benoît&lt;/P&gt;</description>
    <pubDate>Wed, 26 Nov 2014 04:48:05 GMT</pubDate>
    <dc:creator>Anonymous</dc:creator>
    <dc:date>2014-11-26T04:48:05Z</dc:date>
    <item>
      <title>class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5423348#M70438</link>
      <description>&lt;DIV class="lia-message-body"&gt;&lt;DIV class="lia-message-body-content"&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;SPAN class="short_text"&gt;&lt;SPAN class="hps"&gt;by modeling&lt;/SPAN&gt; &lt;SPAN class="hps"&gt;a special "I" section&lt;/SPAN&gt;&lt;SPAN class=""&gt; with slender web, I get&lt;/SPAN&gt; &lt;SPAN class="hps"&gt;these messages:&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;BR /&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp; 1.&amp;nbsp; "Les âmes des barres&amp;nbsp; 6&amp;nbsp;&amp;nbsp; sont de&amp;nbsp; classe 3, par contre les ailes de classe 1 ou 2. Conformément au point 5.5.2.(11), ces sections seront classifiées comme de classe 2 et la partie non effective de l'âme sera exclue de l'analyse (cf. 6.2.2.4.(1))."&lt;BR /&gt;&amp;nbsp; 2. "Conformément au point 5.5.2.(9), les sections des barres&amp;nbsp; 3 5&amp;nbsp;&amp;nbsp; ont été classifiées comme sections de classe 3, bien que conformément au tableau 5.2, elles satisfassent les conditions de la classe 4. Le contrôle de la stabilité sera effectuée conformément au point 5.5.2.(10) comme pour les barres de classe 4."&lt;BR /&gt;&amp;nbsp; 3. "Les barres&amp;nbsp; 3 5 6&amp;nbsp;&amp;nbsp; possèdent des âmes dont l'élancement dépasse la valeur limite donnée dans le point 6.2.6.(6). Pour ces sections, le contrôle de la stabilité locale de l'âme en cisaillement doit être effectué, conformément à la norme EN 1993-1-5. L'analyse de la stabilité pour les sections en I ou en caisson peut être effectuée au moyen de l'option 'ANALYSE DETAILLEE' disponible dans la boîte de dialogue de résultats détaillés. "&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;SPAN class="short_text"&gt;&lt;SPAN class="hps"&gt;Should I&lt;/SPAN&gt; &lt;SPAN class="hps"&gt;worry about &lt;/SPAN&gt;&lt;SPAN class="hps"&gt;warnings&lt;/SPAN&gt;&lt;SPAN class=""&gt; 1 and 2? Are some additional manual calculations needed?&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/DIV&gt;&lt;DIV class="lia-message-body-content"&gt;Warning 3. : I can't find option "ANALYSE DETAILLEE" (RSA 2013)&lt;/DIV&gt;&lt;DIV class="lia-message-body-content"&gt;&amp;nbsp;&lt;/DIV&gt;&lt;DIV class="lia-message-body-content"&gt;Regards,&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Benoît&lt;/P&gt;&lt;/DIV&gt;&lt;/DIV&gt;</description>
      <pubDate>Tue, 25 Nov 2014 04:58:41 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5423348#M70438</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2014-11-25T04:58:41Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5423486#M70439</link>
      <description>&lt;P&gt;&lt;EM&gt;Should I worry about warnings 1 and 2? Are some additional manual calculations needed? &lt;/EM&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;No, these are just information about adopted assumptions.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;EM&gt;Warning 3. : I can't find option "ANALYSE DETAILLEE" (RSA 2013)&lt;/EM&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;EM&gt;&lt;IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/143174iD98C33C617784307/image-size/original?v=mpbl-1&amp;amp;px=-1" border="0" alt="detailed analysis1.PNG" title="detailed analysis1.PNG" /&gt;&lt;/EM&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;EM&gt;If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.&lt;/EM&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 25 Nov 2014 08:35:56 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5423486#M70439</guid>
      <dc:creator>Artur.Kosakowski</dc:creator>
      <dc:date>2014-11-25T08:35:56Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5424782#M70440</link>
      <description>&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;why robot asks for stiffeners whereas calculations are correct?&lt;/P&gt;&lt;P&gt;According 5.1 (2), webs without stiffeners are allowed.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;EM&gt;"RESISTANCE AU VOILEMENT PAR CISAILLEMENT (EC3 article 5)&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Symboles:&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Lam_w&amp;nbsp;&amp;nbsp; &amp;nbsp;- élancement relatif de l'âme&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(5)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;kT&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient pour les conditions de voilement par cisaillement&amp;nbsp;&amp;nbsp; &amp;nbsp;[A.3.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xw&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient d'influence sur la résistance pour le cisaillement (âme)&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.3.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xf&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient d'influence sur la résistance pour le cisaillement (aile)&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.4.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xv&amp;nbsp;&amp;nbsp; &amp;nbsp;- coefficient d'instabilité pour le cisaillement&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Mf,Rd&amp;nbsp;&amp;nbsp; &amp;nbsp;- résistance de calcul des ailes de la section&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.4.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;VEd&amp;nbsp;&amp;nbsp; &amp;nbsp;- effort tranchant maximal dans le panneau&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Vb,Rd&amp;nbsp;&amp;nbsp; &amp;nbsp;- résistance de calcul au voilement par cisaillement&amp;nbsp;&amp;nbsp; &amp;nbsp;[5.2.(1)]&lt;/EM&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;EM&gt;Panneau A&amp;nbsp;&amp;nbsp; &amp;nbsp;Coordonnées du panneau A&amp;nbsp;&amp;nbsp; &amp;nbsp;x = (0.00 ; 1.00)&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Point&amp;nbsp;&amp;nbsp; x = 0.00 m&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;&lt;SPAN&gt;&lt;SPAN&gt;&lt;STRONG&gt;Conformément à l'article 5.1.(2), il faut utiliser les raidisseurs transversaux sur appuis&lt;/STRONG&gt;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;kT = 5.34&amp;nbsp;&amp;nbsp; &amp;nbsp;Lam_w = 1.53&amp;nbsp;&amp;nbsp; &amp;nbsp;Xw = 0.54&amp;nbsp;&amp;nbsp; &amp;nbsp;Xf = 0.00&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Xv = 0.54&amp;nbsp;&amp;nbsp; &amp;nbsp;Mf,Rd = 28796.90 daN*m&amp;nbsp;&amp;nbsp; &amp;nbsp;VEd = 11255.67 daN&amp;nbsp;&amp;nbsp; &amp;nbsp;Vb,Rd = 24350.94 daN&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Cas de charge décisif: 12 ELU /18/&amp;nbsp; 1*1.00 + 7*1.50&lt;/EM&gt;&lt;BR /&gt;&lt;EM&gt;Condition de vérification:&amp;nbsp;&amp;nbsp; VEd = 11255.67 daN&amp;nbsp; &amp;lt;&amp;nbsp; Vb,Rd = 24350.94 daN&amp;nbsp;&amp;nbsp; &amp;nbsp;&lt;SPAN&gt;&lt;STRONG&gt;OK !&lt;/STRONG&gt;&lt;/SPAN&gt;"&lt;/EM&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;thanks&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;benoît&lt;/P&gt;</description>
      <pubDate>Wed, 26 Nov 2014 04:48:05 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5424782#M70440</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2014-11-26T04:48:05Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5424946#M70441</link>
      <description>&lt;P&gt;Could you attach&amp;nbsp;the file and indicate the beam to investigate please?&lt;/P&gt;</description>
      <pubDate>Wed, 26 Nov 2014 09:14:59 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5424946#M70441</guid>
      <dc:creator>Artur.Kosakowski</dc:creator>
      <dc:date>2014-11-26T09:14:59Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5424958#M70442</link>
      <description>&lt;P&gt;File attached.&lt;/P&gt;&lt;P&gt;Why stiffeners are not required on points of nodal load, only on supports?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Rgds&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;benoît&lt;/P&gt;</description>
      <pubDate>Wed, 26 Nov 2014 09:38:48 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5424958#M70442</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2014-11-26T09:38:48Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425064#M70443</link>
      <description>&lt;P&gt;Try to install &lt;A href="http://knowledge.autodesk.com/support/robot-structural-analysis-products/downloads/caas/downloads/content/rsarsapro-2013-sp4-hot-fix-hf5.html?v=2013" target="_self"&gt;HF5 &lt;/A&gt;for Robot 2013.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;EM&gt;If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.&lt;/EM&gt;&lt;/P&gt;</description>
      <pubDate>Wed, 26 Nov 2014 11:29:34 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425064#M70443</guid>
      <dc:creator>Artur.Kosakowski</dc:creator>
      <dc:date>2014-11-26T11:29:34Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425087#M70444</link>
      <description>&lt;P&gt;no change.&lt;/P&gt;&lt;P&gt;Message appears when I remove the supports stiffeners, and not the intermediate ones.&lt;/P&gt;&lt;P&gt;May I ignore it?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;benoît&lt;/P&gt;</description>
      <pubDate>Wed, 26 Nov 2014 11:47:40 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425087#M70444</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2014-11-26T11:47:40Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425176#M70445</link>
      <description>&lt;BLOCKQUOTE&gt;&lt;BR /&gt;
&lt;P&gt;&lt;EM&gt;&lt;SPAN style="font-size: 10pt;"&gt;Message appears when I remove the supports stiffeners (&lt;/SPAN&gt;&lt;/EM&gt;&lt;SPAN style="font-size: 10pt;"&gt;key information which I missed &lt;/SPAN&gt;&lt;SPAN style="font-size: 10pt;"&gt;&lt;img id="smileyhappy" class="emoticon emoticon-smileyhappy" src="https://forums.autodesk.com/i/smilies/16x16_smiley-happy.png" alt="Smiley Happy" title="Smiley Happy" /&gt;&lt;/SPAN&gt;&lt;EM&gt;&lt;SPAN style="font-size: 10pt;"&gt;&amp;nbsp;) , and not the intermediate ones.&lt;/SPAN&gt;&lt;/EM&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;SPAN style="font-size: 10pt;"&gt;It is due to:&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;SPAN style="font-size: 10pt;"&gt;&lt;IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/143408i6819634A832B11DF/image-size/original?v=mpbl-1&amp;amp;px=-1" border="0" alt="ribs at supports.PNG" title="ribs at supports.PNG" /&gt;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&lt;EM&gt;&lt;SPAN style="font-size: 10pt;"&gt;May I ignore it?&lt;/SPAN&gt;&lt;/EM&gt;&lt;/P&gt;
&lt;P&gt;&lt;SPAN style="font-size: 10pt;"&gt;&amp;nbsp;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&lt;SPAN style="font-size: 10pt;"&gt;Depending how you read the word shall (one should but doesn't have to OR must)&amp;nbsp;&lt;img id="smileyhappy" class="emoticon emoticon-smileyhappy" src="https://forums.autodesk.com/i/smilies/16x16_smiley-happy.png" alt="Smiley Happy" title="Smiley Happy" /&gt;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;EM&gt;&lt;SPAN style="font-size: 10pt;"&gt;If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.&lt;/SPAN&gt;&lt;/EM&gt;&lt;/P&gt;
&lt;/BLOCKQUOTE&gt;</description>
      <pubDate>Wed, 26 Nov 2014 12:58:39 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425176#M70445</guid>
      <dc:creator>Artur.Kosakowski</dc:creator>
      <dc:date>2014-11-26T12:58:39Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425293#M70446</link>
      <description>&lt;P&gt;french version is not clearer :&lt;/P&gt;&lt;P&gt;&lt;IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/143427iEED20FEF24E7EC1B/image-size/original?v=mpbl-1&amp;amp;px=-1" border="0" title="Capture.PNG" alt="Capture.PNG" /&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;"in this case" is related to stiffened web or both stiffened and unstiffened web?&lt;/P&gt;</description>
      <pubDate>Wed, 26 Nov 2014 14:12:41 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5425293#M70446</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2014-11-26T14:12:41Z</dc:date>
    </item>
    <item>
      <title>Re: class 4 cross section design</title>
      <link>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5426311#M70447</link>
      <description>&lt;P&gt;The warning in Robot corresponds to the lack of stiffeners at the supports.&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;EM&gt;If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.&lt;/EM&gt;&lt;/P&gt;</description>
      <pubDate>Thu, 27 Nov 2014 08:44:13 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/robot-structural-analysis-forum/class-4-cross-section-design/m-p/5426311#M70447</guid>
      <dc:creator>Artur.Kosakowski</dc:creator>
      <dc:date>2014-11-27T08:44:13Z</dc:date>
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