Lateral-torsional buckling in one line: a beam that is strong…
By Dr. Sarah Chen,
Lateral-torsional buckling in one line: a beam that is strong enough in bending can still fail by twisting sideways if its compression flange is not restrained.
The fix is usually not a bigger section. Look at where the restraints are first, then at the moment diagram (C1), and only then at the section. #eurocode3 #stability
Replies
Daniel Weber:
And check where the load is applied. A load on the top flange is destabilising and gives a noticeably lower Mcr than the same load at the shear centre.
Minh Tran:
C1 is worth the effort. For a simply supported beam with a central point load it is about 1.35, which is free capacity if you use it.