Leaderboard

Thanks I found it in Assign>Frame>Release/partial fixity ...

I vote against this change of colors...Its too dark and eye constraining, looks more familiar with civilea.com. Green color is good but make the backgroud white...You know green and white....White background is best for online reading

Select the columns, and goto Assign>Line>Releases

1) Truss can rest on any support type: Columns directly or beams. However, It is very likely that it would be supported on columns as trusses are generally provided to cover extra long spans. If you are supporting it of a beam, make sure you do your due diligence with beam design. You have to specify the boundary condition based on the kind of connection you would provide to connect the truss with your supporting member. Oversized slotted holes in base plate can act as rollers. 2) Grade depends upon what the market has to offer. Confirm with the rolling mills about what ASTM Standard they roll. Thanks.

In a no diaphragm scenario, your walls are independent, something we don't want in seismic design, and the purlins may be subjected to some force if they have a fixed connection with wall. The force would come from the out of plane bending and in-plane movement of wall. But the limit state that would govern would be wall failure rather than purlin, so I wont worry about the purlins but care more about providing a diaphragm and ensuring that load path to foundation is satisfactory. Wall stability is critical here. You could ensure better wall performance by providing continuous plinth band, sill band, lintel band and tie beam on top of wall. Thanks.