https://forums.autodesk.com/t5/robot-structural-analysis-forum/diaphragm/m-p/8002373#M32444 <P>Hi,</P><P>I have exported a model from Revit and I modelled a braced / portalised structure.</P><P>I have modelled the floor plates as flexible diaphragms and I don't want to have moment in the braced bay beams so I put releases or truss members for bracing (I tried both)</P><P>With the releases some nodes are not connected to the diaphragm. Without the beams take moment. <span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="nodes.jpg" style="width: 451px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/500621i1615957F38EB08C0/image-size/large?v=v2&amp;px=999" role="button" title="nodes.jpg" alt="nodes.jpg" /></span></P><P>I also tried to model the slabs as curtain walls and add rigid links.</P><P>Thanks for your help.</P><P>Franco</P> Tue, 15 May 2018 09:03:09 GMT Anonymous 2018-05-15T09:03:09Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/diaphragm/m-p/8002373#M32444 <P>Hi,</P><P>I have exported a model from Revit and I modelled a braced / portalised structure.</P><P>I have modelled the floor plates as flexible diaphragms and I don't want to have moment in the braced bay beams so I put releases or truss members for bracing (I tried both)</P><P>With the releases some nodes are not connected to the diaphragm. Without the beams take moment. <span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="nodes.jpg" style="width: 451px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/500621i1615957F38EB08C0/image-size/large?v=v2&amp;px=999" role="button" title="nodes.jpg" alt="nodes.jpg" /></span></P><P>I also tried to model the slabs as curtain walls and add rigid links.</P><P>Thanks for your help.</P><P>Franco</P> Tue, 15 May 2018 09:03:09 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/diaphragm/m-p/8002373#M32444 Anonymous 2018-05-15T09:03:09Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/diaphragm/m-p/8002847#M32445 <P>Hi&nbsp;@Anonymous</P> <P>&nbsp;</P> <P>Correct model geometry first:</P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="strcor.jpg" style="width: 813px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/500722i18D4775712813BF9/image-size/large?v=v2&amp;px=999" role="button" title="strcor.jpg" alt="strcor.jpg" /></span></P> Tue, 15 May 2018 12:24:45 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/diaphragm/m-p/8002847#M32445 Rafal.Gaweda 2018-05-15T12:24:45Z