ANALYSIS OF SEISMIC RESPONSE ON HIGH-RISE BUILDING WITH CANTILEVER-TOGGLE-BRACE VISCOUS ENERGY-DISSIPATION STORY

摘要

Based on nonlinear time history analysis under frequent earthquake,design earthquake and rare earthquake,the seismic control effects of high-rise building with cantilever-toggle-brace energy-dissipation story were investigated.The results show that Cantilever-toggle-brace viscous energy-dissipation story could be benefit for controlling structural seismic responses of high-rise building under various earthquake condition.With increase of earthquake condition,the control effects of seismic responses gradually decrease.The control effect of lateral displacement is better than that of story shear for high-rise building with cantilever-toggle-brace viscous energy-dissipation story.With increase of earthquake condition and structural lateral displacement,the values of nominal displacement magnification factor of viscous damper in the same energy-dissipation story gradually increase.With increase of the position of viscous energy-dissipation story,nominal displacement magnification factor of viscous damper in the same earthquake condition gradually decrease.