Buckling restrained brace and load-bearing structure provided with the same

摘要

Provided are a buckling restrained brace including a core material (5) that has a plate shape and extends along an axis (P), a restraining member (6) that extends along the axis and covers or encases the core material from an outer peripheral side in a state where both end portions of the core material in an axis direction protrude outside, a filler (8) that is filled between the restraining member and the core material, and a pair of first reinforcing members (10) that each have a plate shape. The members are installed in both end portions of the core material in the axis direction so as to interpose the core material therebetween from both sides of the core material in a plate width direction, and a load-bearing structure installed with the buckling restrained brace. The restraining member and the filler prevent the core from buckling under a stress along the axis (P) caused by a seismic event, damping the earthquake in the process.