Study on Seismic Intensity-reduced Design for Structure with Fluid Viscous Dampers
Zhao Da-hai;Tong Li-li;Chen Yong-qi;Xue Heng-li;Zhang Zhen-qiang;School of Civil Engineering and Mechanics,Yanshan University;Beijing Qitai Vibration Control and Scientific Development Co. Ltd;
The performance and analysis model of fluid viscous dampers are introduced. Based on fluid viscous dampers,a seismic intensity-reduced method for energy dissipation structure is proposed. Utilizing PKPM software,an 11-story reinforced concrete frame shear-wall structure is designed with the intensity-reduced method. The seismic performances of energy dissipation structure with fluid viscous dampers are also analyzed by ETABS finite element software. The inner forces,displacements and energy variation of the structure are investigated comparably. The results indicate that seismic intensity-reduced method for structure with fluid viscous dampers is feasible,and the seismic structure has satisfied the relevant provisions of inter-story drift ratio in codes. The shear forces of structure are reduced to some extent. The earthquake input energy is dissipated by fluid viscous dampers,which guarantees the safety of the main structure.