Thank you for the response WARose; I have considered doing something along those lines to see if it helps me out.
Lomarandil: Yes, I have taken into account the struts and vertical braces for my unbraced lengths (LByy & LBzz).
The issue seems to be that Risa is calculating a much smaller...
Dave,
Thank you for the response. I have included the vertical bracing and struts in Risa and in CFS. The roof panel is fastened every 1'-4" to the top of z-purlins, so I have also included this as the Lcomp top in Risa. As for the compression, there is an axial force of about 0.3 kips in the...
I have an existing PEMB (built in the 1980’s) that I am analyzing because the existing exhaust fans need to be replaced. Structurally, the building has many elements that seem to be common practice such as the roof consisting of metal panel fastened to cold formed z-purlins which are lapped at...
