A review on BRB and SC-BRB members in building structures

Syed Muhammad Bilal Haider , Dongkeun Lee

Abstract

Buckling restrained bracing (BRB) was firstly introduced in Japan construction industry in year 1989. With time, BRB performance has been advanced to self-centering BRB (SC-BRB) which has exceptional energy dissipation, addressing the improvement in the structure performance in post-seismic affect. Although the BRB performance specifications are defined in design codes of several countries, specific design provisions are not generally provided since BRBs are usually considered a manufactured device. Furthermore, most of review papers focused on BRB rather than SC-BRB. Thus, this paper explores the background of both BRB and SC-BRB. The importance of self-centering components in BRB and literature related to it have been studied. This review study also highlights the significance of corrosion-resistance materials in the configuring BRB and SC-BRB since most of such members are made of carbon steel that is susceptible to corrosion.

Key Words

bracing system; buckling restrained bracing (BRB); cyclic loading test; energy dissipation; residual deformation; self-centering BRB (SC-BRB)

Address

Syed Muhammad Bilal Haider: Department of Civil and Environmental Engineering, Incheon National University, Incheon, South Korea Dongkeun Lee: Department of Civil and Environmental Engineering, Southern University and A&M College, Baton Rouge, Louisiana, USA

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