Interaction of local buckling and lateral torsional buckling of T-shaped cantilevering beams

摘要

The structural resistance of T-shaped cantilevering beams is governed by combined stability phenomena of lateral torsional buckling and local buckling. The aim of this paper is to show the applicability of the "general method", to the prediction of the combined stability behaviour for single symmetric cross-sections. Since the approach is based on the modal shape and modal edge-moment distribution, it does not distinguish between local and lateral torsional buckling, but considers both phenomena in a single trail. A buckling curve for tapered T-shaped members is suggested and boundaries of applicability investigated.