• SACS | Lateral Torsional Buckling of Unsymmetrical Plate Girders with AISC 14th and AISC 15th

    Hi, I am writing because I need to verify Unsymmetrical Plate Girders with AISC 2010 and I do not why I have very high Unity Ratio under Lateral Torsional Buckling when I increase the Upper Flange width in the picture you can see the same beam…
  • SPAN & Physical Member commands in SACS

    Hello all, There are some ambiguities for me about the use of SPAN and PHYSICAL MEMBER commands in SACS. Consider the following simple senario: Imagine we have a main deck beam (say HEB600), on top of which stringer beams( say IPE200) are running…