Buckling restrained braces

Buckling restrained braces (brbs) have high energy dissipation capacity and equal tension and compression axial load capacity. therefore, the application of brbs has gained popularity in seismic regions. the first studies on brbs started in japan in 1970 and since then more studies have been undertaken in other earthquake prone countries. although the brbs perform well in component and subassembly tests, they do not perform as well in frame tests because of the interaction between beam-column-gusset plate and brb. in this study, the component and subassembly test of the brbs and then brb frame tests available in the literature are summarized.