Study On Seismic Performance Of Frame-core Tube Damping Structure With Fluid Viscous Dampers

In recent years,with the development of economy,lots of new types of buildings are built,and the complexity of buildings are increasing.Energy dissipation design can not only satisfy seismic requirements but also can save the cost,especially in high intensity seismic region.Members of energy dissipation design can absorb lots of energy in earthquake and reduce the plastic deformation of structure,they are used to cut down the dynamic response of structure.The position of the fluid damper may have significant effect on the structure,especially for those with clear transmission mechanism of load.Hence,the research of the arrangement of the fluid damper in flat and fa?ade has great engineering significance.In this paper,finite element analysis software PERFORM-3D was used to analyze the structure with the concept of performance design.With the theory of transmission mechanism and the mechanism of redistribution of internal force,the dynamic nonlinear time-history analysis of a frame-core tube structure in the area of the high intensity seismic in the northwestern region of china was made.Other three schemes were compared considering the different arrangements of fluid dampers in flat and fa?ade surfaces.The maximum story drift,story shear force,plastic damage of the frame-core tube,energy distribution,hysteretic energy consumption in various components and hysteretic energy consumption in height were compared,and the best arrangement of fluid dampers were found in this frame-core tube structure.The result show that viscous dampers arranged between the frame and the core tube are better than viscous dampers arranged between the frames.