Simplified method for analysis of structures with supplementary viscous dampers

Linear static procedure for the conventional structure is first introduced.Subsequently this procedure is extended to the analysis of structures with supplementary viscous dampers.The detailed steps for seismic assessment of the damped structure are presented based on the Chinese design response spectrum.Application of the simplified analysis method is illustrated through response time history analyses of the structure with added viscous dampers under artificial earthquake accelerations that are compatible with Chinese design response spectrum.Analysis results show that the method can rapidly effectively evaluate the seismic performance of the structure with velocity-dependent energy dissipation devices particularly during the preliminary stage of analysis and design.