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

Syed Muhammad Bilal Haider and 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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