Experimental Hysteretic Behavior and Application of an Assembled Self-Centering Buckling-Restrained Brace

In this paper, we propose an assembled self-centering buckling-restrained brace (ASCBRB), which eliminates the residual drift of structures after a major horizontal displacement. The ASCBRB also represents advanced device for partial replacement damaged parts brace. Four groups prestressed disk springs and metal yielding core plate were used to improve resilience energy dissipation brace, respectively. hysteretic mechanics system was summarized experimentally determined through cyclic quasi-static experiment on four specimens with different energy-dissipation ratios. ASCBRBs verified exhibit superior capacity flag-shaped behavior. Moreover, damage concentrated guide plates demonstrated feasibility replacement. Nonlinear dynamic analyses seismic performance frame provided evidence that proposed significantly reduces compared braced frames having same design parameters.