Seismic performance assessment of a novel ductile steel braced frame equipped with steel curved damper

Steel braced frames are commonly used in steel structures to control and improve the seismic performance of under severe lateral forces such as an earthquake. So, providing better formability would help designers achieve their desire level. This study is focused on utilizing curved dampers ductile frame instead using knee elements provide energy dissipation, strength, elastic stiffness during cyclic loading. Five with identical length thickness, yet various angles (30°, 60°, 75°, 90°, 120°) eccentricities have been frame. A loading protocol has applied assess impacts structural characteristics The final results show that higher strength dissipation occurred by increasing damper angle from 30° more than 75° reverses results. Hence all five dampers, most effective one for both 60° damper. significant improvements also observed proposed dampers.