RESIDUAL DEFORMATION OF STEEL FRAMES WITH STIFF HYSTERETIC DAMPERS

Abstract

This paper presents a seismic design procedure to estimate the residual deformation of steel frames with hysteretic dampers when main frames do not yield under earthquake excitations. Dynamic response analysis was carried out on single-degree-of-freedom systems with various structural parameters. The authors have already proposed two methods to estimate the residual deformation, we examined these two methods and proposed a new method through numerical work. Finally, the paper concludes that the proposed new method is also applicable for multistory frames as well as one mass-spring systems.