"Fantasy Land" - agreed. For my particular project I have added cover plates, doubler plates, flange braces, rod braces, and doubled up the number of purlins to get my calculations to match the new loading. We always struggle with this type of problem. Now with all that has been said are we...
I will be adding reinforcing to get the additional 10psf snow load capacity. The tough part for me was getting the steel to work for the original 30psf snow load. This included the purlins and the tapered steel rigid frames. I was just looking for any tricks that the PEB industry might be using...
I am looking at an existing PEB with 8 1/2" Z purlins spanning 25 ft. @ 5ft o.c. Snow load = 30 psf, DL =2.5 psf. The purlins are lapped 2.5 ft. Does the lapping detail constitute continuous beam action? I am having a hard time making these work for the original design loads much less coming up...
