PREDICTION OF DAMPER ENERGY DISSIPATION AND MAXIMUM RESPONSE OF STRUCTURES WITH NONLINEAR VISCOELASTIC DAMPERS CONSIDERING PERFORMANCE DEGRADATION

In response estimation of seismic control structures, it is necessary to consider the performance degradation dampers due long-period motion. this paper focus given structures with shear strain dependent nonlinear viscoelastic dampers. A method proposed predict damper dissipated energy considering in earthquakes. The used maximum deformation structure using existing methods. New expression are for evaluation equivalent number cycles and effective ratio. accuracy these prediction methods then evaluated.