Dear Bentley,
I would like to know cold formed z section design in both STAAD Pro and Ram Element. How should I assign purlin lapping for z section in PEB warehouse design?
Yes, same for STAAD.Pro as well.
There is no special method for handling the z purlin overlap in Ram Elements. You can make a special section that is extra thick and use that section along the overlap length to get the stiffness right, but I don't think the design will be exactly what you need. STAAD is similar I believe.