Hi, I am analyzing a a frame of primarily individually defined round HSS sections, sections are defined as below. When the frame is post-processed with the AISC 360-10 code Method ASD, it appears that even when the code states TORSION 0, the program…

Hi, As per AISC 360-10 section C2.2b.(4) for Direct Analysis Method, both maximum 2 nd -order & 1 st -order drift shall be determined with stiffnesses adjusted as specified in Section C2.3. It seems that the command “PERFORM DIRECT ANALYSIS” is only…