Seismic Analysis And Study On Energy Dissipation Reduction Structure With Supplemnetal Viscous Dampers

The traditional anti-seismic structure system achieves the role of the anti-earthquake, by enhancing the performance of the structure itself ,and energy dissipation-seismic reduction structure system is attached to the structure of the energy dissipation devices (such as viscous dampers) to dissipate the earthquake energy and achieve the purpose of the seismic . Viscous dampers with a simple structure, cheap components, small environmental impact, easy construction, very good shock absorption effect, etc., is a good shock absorption devices and are being widely used in the field of anti-seismic structure of the civil engineering.In this thesis, the resilience models of viscous dampers are introduced; viscous damper the equivalent linear theory on viscous damper are discussed; the effective damping ratio are deduced, which is attached to the structure by viscous dampers; the relations, between the speed index of viscous damper and the ability to consumption of viscous dampers, are discussed; and the method of seismic analysis on energy dissipation-seismic reduction structure system, are detailed.Through a engineering structure, the method of the damper layout is discussed by the control objective function on story drift. With the software SAP200 Earthquake Responses of no control structure and energy dissipation-seismic reduction structure are contrastively analyzed, on the input of El Centro wave and Taft wave, and it is verified that energy dissipation-seismic reduction structure with viscous dampers has the superiority of anti-seismic performances, and there are comparative analysis of shock absorption effect of viscous dampers with different parameters.