EXPERIMENTAL STUDY ON BUCKLING-RESTRAINED BRACES USING STEEL MORTAR PLANKS

－Examination of local bulging failure of restraining parts considering the effect of filling materials－

Abstract

In order to realize the buckling-restrained brace (BRB) with high energy absorption performance, it is important to prevent premature local bulging failure of the restraining part. In this study, the strength of BRB to resist local bulging failure of the restraining part is considered to be the minimum value of the strength of the steel plate considering the influence of the effect of filling materials and the strength to resist bearing failure of the filling materials. Local bulging failure is prevented by the value to resist local bulging failure larger than the force acting in the out-of-plane direction.