Lateral torsional buckling and slenderness
The expression for slenderness used in the lateral torsional buckling checks given in BSEN1993-1-1:2005 is different to that given in BS5950-1:2000. Mary Brettle, Senior Engineer at the Steel Construction Institute, examines lateral torsional buckling and shows how both slenderness expressions are based on the same elastic critical moment theory.
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