Critical bending moment: How to calculate it with numerical analysis (in RFEM)

By |May 29th, 2016|Linear FEA, RFEM, Steel Structures|

Lateral torsion buckling (LTB) is a very dangerous phenomenon, that can easily cause the collapse of a poorly designed beam. In civil engineering codes, the critical bending moment is crucial in the proper design of bent beams susceptible to LTB, as it allows for slenderness calculation.  In “typical” cases everything is ok since code equations [...]