Using buckling restrained braces to improve the dynamic behavior of medium- height steel frames

Abstract

The use of buckling restrained braces (BRBs) has significantly enhanced the seismic efficiency of steel frames, a recent and significant technique in the

construction Industry. The study emphasizes the widespread adoption of buckling restrained braces and their role in resisting lateral stresses by examining their abilities to modify the seismic response of steel frames. The dynamic behavior of these braces is analyzed by the study using (Abaqus 19 software). The study examined the dynamic behavior of a multi - story steel frame with eccentric buckling restrained braces (BRBFES) under earthquake motions. Parameters like BRB location and frame height were adjusted to improve dynamic behavior. The response was evaluated by comparing acceleration, story drifts, base shear forces and dissipated energy. The outcomes demonstrated the efficiency of buckling restrained braces in medium - height steel frames, where the dissipated energy was raised and the acceleration, the story “drifts, and base shear forces were reduced.