There are few researches on the influence of viscous dampers attached to isolation layer on dynamic response of high-rise foundation isolation structure.A 15-floor ward building in a hospital was selected as the object,and two kinds of structures before and after the isolation layer with viscous damper were selected to analyze the elastic-plastic time history of three-directional ground motion.The results show that the interlayer shear force increases by 21.3％when the viscous damper is added to the isolation layer.The first floor story drift decreases about 15％,and the middle and upper floors story drift increases about 4％.The displacement of the isolation layer can be reduced by 33.6％,which can effectively reduce the tensile stress of the isolator units,but has no obvious effect on the compressive stress.
关键词
高层建筑/隔震结构/黏滞阻尼器/弹塑性时程/动力响应
Key words
high-rise building/isolation structure/viscous damper/elastoplastic time history/dynamic response
维普
万方数据