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《Journal of Building Structures》 2008-06
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Shaking table test and numerical analysis of vertical-isolated building model with combined disk spring bearing

ZHAO Yamin1,SU Jingyu2,ZHOU Xiyuan2,SUI Yunkang1(1.College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology,Beijing 100124,China;2.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China)  
Combined disk spring bearing(DSB) for vertical isolated building is introduced in this paper.Vertical stiffness and damping performance of the DSB is studied through testing under static and dynamic loading.The experimental results show that DSB had good property of less vertical stiffness and the vertical damping ratio was about 20%.Shaking table tests of the 1/2 scale fixed-base model and the DSB vertical isolated model were compared to confirm the effect of the vertical isolation device.Results show that the DSB can isolate vertical earthquake energy remarkably.With the acceleration amplitude increased,the vertical displacement of the DSB model occurred on the vertical isolation layer,and the inter-story deformation of the superstructure changed slightly.The acceleration responses of DSB model decreased more than 50% and the displacement responses decreased more than 40% under seldom earthquake input,which confirmed that DSB could decrease the seismic responses obviously.Finally,the numerical analysis of earthquake response to the model structure is also performed by finite element analysis method.
【Fund】: 国家自然科学基金(50278093 10472003);; 教育部博士点学科专项科研基金(20060005010);; 国家科技支撑计划(2006BAC13B01)资助
【CateGory Index】: TU352.12
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