Buckling Restrained Braces: A review on Classifications, Design Strategy, and Applications.

Buckling-restrained brace (BRB) is an evolution of conventional braces, where it is not only increases the compressive strength of the brace but also improves seismic energy dissipation. The fundamental difference between the BRB and common types of braces is that in the BRB, buckling is prevented by a restraining mechanism, which leads to a reduction in the cross-sectional area of the inner core. This results in plastic deformations of the inner core of the BRB without global buckling, which causes seismic energy dissipation. Due to the superiority of the BRB over other types of dispersing devices, many studies have been conducted to increase its efficiency and reduce costs. The scope of these studies was to develop the basic parts (core, restraining mechanism, and connections) of BRBs. In this paper, the results of some previous research over the past few decades are presented to illustrate the beginning, development, types, design strategy, and recent applications of BRBs. In addition, the advantages and disadvantages of the different types and methods used to model and analyze BRBs are also discussed. [ABSTRACT FROM AUTHOR]