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doi:10.3850/9789628014194_0010
Static-Dynamic Earthquake Analysis for Vibration Reduction of Shear Wall Structure Based on Equivalent Storey Model
Guangjun Sun1,a, Aiqun Li1, Zhiqiang Zhang1, Ruixin Huang1 and Hong Jia2
1School of Civil Engineering, Key Laboratory of Concrete and Prestressed Concrete
Structures of Ministry of Education, Southeast University, Nanjing, 210096, China.
aguangjunsun@163.com
2China Railway Construction Group Co. Ltd., Beijing, 100040, China
ABSTRACT
A high-rise shear wall structure is analyzed according to the proposed combination method of static elastic-plastic analysis and time history analysis based on equivalent storey model. Firstly, static elasticplastic push-over is applied to the structure and the storey restoring force curves are obtained. Based on the equivalent storey model, the structure response is calculated by the elastic-plastic time history method and the vibration reduction analysis of structure with nonlinear viscous fluid damper under rare earthquake is studied. The whole earthquake responses of shear wall structure with and without energy dissipation devices are investigated and evaluated respectively. The researches show that the time history method based on equivalent elastic-plastic storey model can be applied to evaluate the whole earthquake-resistant performance of structure and provide a reference for engineering design, the responses of high-rise shear wall structure under major earthquake are decreased significantly and the storey drifts satisfy the requirement of “code for seismic design of buildings” by using viscous fluid damper. The method in this paper can be utilized for the analysis of similar projects.
Keywords: Elastic-plastic analysis, Equivalent storey model, Shear wall, Static-dynamic earthquake analysis, Vibration reduction.
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