WRC 272
Part 1: Design of Beam Columns with Lateral-Torsional End Restraints
Bulletin / Circular by Welding Research Council, Inc., 1981
T.L. Hsu, G.C. Lee
Full Description
The AISC interaction equation approach is a very convenient design tool and has been widely accepted as the basic design approach for beam-columns. This study has addressed itself to one special aspect of the interaction equation approach (lateral-torsional buckling failure mode) and resulted in a conclusion that for lateral-torsional buckling, a modification function to the bending stress ratio (fb/Fb), different from the AISC format, can provide improved designs on a more rational basis. For in-plane failure mode the present AISC interaction equation remains a very good approach.