Wondering how to calculate Swa,Swb, Swc, Sza, Szb and Szc for unequal angles. These values are listed in the AISC database and are used for problems involving principle axis of L shapes. For purpose of discussion, I have a L6x3.5x3/8 LLV and I can replicate all the data in the AISC spreadsheet...
I've followed the procedure contained in AISC specification F11 to determine the Mn. I used the AISC design guide examples, example F.12 and AISC spec section F11. The procedure seems pretty straight forward, I have it in Mathcad. I also was able to reproduce the calculations that produce...