EFFECT OF WEB DEFORMATION ON BUCKLING LOAD FOR H-SHAPED COMPRESSION MEMBER WITH ECCENTRIC BRACES

Abstract

This paper clarifies the influence of web deformation on the flexural buckling load of H-shaped compression members with eccentric braces at the center of their length axis. In the previous papers, it is assumed that the web deformation of the compression members is restrained in order to have the stiffeners at their joint between braces and members, but a form of joint becomes complicate and constructive efficiency decrease. In this paper, the buckling load is developed by the energy method and confirmed by the elastic eigen-value analysis, and the rigidity demand is evaluated using inelastic large deformation analysis.