Shaking table test study on mid-story isolation structures with viscous damper
Mid-story isolation structure is developing from base isolation structures.As a complex structural system, the work mechanism of base isolation structure is not entirely appropriate for mid-story isolation structure, and the prolonging of structural natural period may not be able to decrease the seismic response of substructure and superstructure simultaneously.In this paper, for a four-story steel frame model, whose prototype first natural period is about ls without seismic isolation design, the seismic responses and isolation effectiveness of mid-story isolation system with linear natural rubber bearing and viscous damper are studied experimentally by changing the location of isolation layer.Respectively, the locations of isolation layer are set at bottom of the first story, top of the first story, top of the second story and top of the third story.The results show that mid-story isolation can reduce seismic response in general, and substructure acceleration may be amplified.
Mid-story isolation Linear natural rubber bearing Viscous damper Shaking table test
Jianmin Jin Ping Tan Fulin Zhou Xiangyun Huang
Earthquake Engineering Research & Test Center,Guangzhou University,Guangzhou,510405,P.R.China
国际会议
上海
英文
1149-1152
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）