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《Sichuan Building Science》 2008-03
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Study of equivalent linearization methods for inelastic analysis of structures

MA Yingzhan,LIU Wenfeng,LI Yi(School of Civil Engineering,Qingdao Technological University,Qingdao 266033,China)  
Equivalent linearization methods are the practical methods to estimate the maximum inelastic response of structures.In the equivalent linearization methods,equivalent period and equivalent damping ratio of the system are computed as a function of the displacement ductility ratio,then an inelastic system is equaled to a linear elastic system and the maximum inelastic response are computed through time history analysis.Seven equivalent linearization methods are presented—secant stiffness method,the method based on the average stiffness and energy,the method based on the average stiffness and damping,the method by Iwan,the method by Hwang,the method by Kowalsky,the method by Iwan and Guyader,59 periods of structrues and 32 seismic waves are selected,26432 inelastic and equivalent linear elastic time history analyses are proceeded.Computation precision and applicability are compared and discussed for each method,and suggestions for selecting the equivalent linearization methods are presented.
【Fund】: 山东省教育厅科技计划项目(J07YA09-2)
【CateGory Index】: TU313
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【References】
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【Co-citations】
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1 WEI Jin-tao(China Southwest Architectural Design & Research Institute,Chengdu 610081,China);The fluid viscous damper and its application in civil engineering[J];Sichuan Building Science;2006-02
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【Co-references】
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1 ZHUO Wei-dong, FAN Li-chu (College of Civil Engineering and Architecture, Fuzhou University, Fuzhou 350002, China; State Key Laboratory for Disaster Reduction in Civil Engineering at Tongji University, Shanghai 200092, China);On strength reduction factors used for seismic design of structures[J];Earthquake Engineering and Engineering Vibration;2001-01
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