Performance-based Seismic Design Method for Structures with Supplemental Viscous Dampers

The displacement based design method of the structures with viscous fluid dampers was proposed.The methods for performance-based design of structures with various energy dissipation devices were compared.The transform condition from acceleration response spectrum to displacement response spectrum(DRS) was studied.It shows that the transformed DRS differ from the true DRS(mean value) with the increase of characteristic period of the site.Given the same site condition,the difference will increase as the damping ratio increases.Based on the Chinese seismic code,the non-iteration method was applied to propose the displacement-based design method of the structures with viscous fluid dampers,under the condition that the structures keep elastic.The further nonlinear time-history analysis verifies the practicality and effectiveness of the method.