地震作用下结构目标位移简化计算方法的研究
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摘要
进行推覆分析研究的目的就是要简化实际工程分析,并能真正的把它用于指导实际工程设计。本着这一宗旨,提出应用等效单自由度体系直接求多自由度体系在地震作用下目标位移的简化公式,同时就其中的一些修正系数的表达式及其取值进行了深入的研究;应用提出的简化方法,可以避免实际工程中复杂的弹塑性动力时程分析,提高工程分析的效率。
The purpose of the study on the nonlinear static analysis is to simplify the practical engineering analysis and use its result to guide the practical engineering design.To achieve this aim,a simplified equation is proposed in this paper and a parameter study is conducted to get the rational coefficient values in the equation.At the same time the target displacement of a MDOF(Multiple degree of freedom)structure under design earthquake can be obtained from its equivalent SDOF(Single degree of freedom)system.The analysis of a practical engineering structure with the simplified equation proposed in this paper is more efficient than with the traditional one,and the complex nonlinear dynamic history analysis procedure is avoided.
The purpose of the study on the nonlinear static analysis is to simplify the practical engineering analysis and use its result to guide the practical engineering design.To achieve this aim,a simplified equation is proposed in this paper and a parameter study is conducted to get the rational coefficient values in the equation.At the same time the target displacement of a MDOF(Multiple degree of freedom)structure under design earthquake can be obtained from its equivalent SDOF(Single degree of freedom)system.The analysis of a practical engineering structure with the simplified equation proposed in this paper is more efficient than with the traditional one,and the complex nonlinear dynamic history analysis procedure is avoided.
引文
[1]钱稼茹,罗文斌.静力弹塑性分析-基于性能/位移抗震设计的分析工具[J].建筑结构,2000,(6):23～26.Qian Jiaru,Luo Wenbin.The nonlinear static analysis-the means of aseismic design based on performance or displacement[J].Building Structure,2000,(6):23～26.(in Chinese)
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[3]Hiroshi Kuramoto.Predicting the earthquake responding of buildings using equivalent single degree of freedom system[C].12th World Conference on Earthquake Engineering,Paper No.1039,2000.
[4]袁波.基于位移的结构弹塑性地震反应简化分析方法的研究[D].福建:华侨大学,2004.Yuan Bo.Study on simplified analysis method of elasto-plastic seismic response of structures based on displacement[D].Fujian:Hua Qiao University,2004.(in Chinese)
[5]Chopra A K,Goel R K.Capacity-demand-diagram method for estimating seismic deformation of inelastic structures[R].University of California,Berkley,Report No.PEER-1999/02,1999.
[6]Mazzoni S,Fenves G L.Displacement-based seismic design of statically-indeterminate bridge pier[C].Pro.of the12nd World Conference on Earthquake Engineering,CD-ROM,Paper No.1851-National Conference on Earthquake Engineering,No.1851～1857,2000.
[7]Lawson R S.Nonlinear static push-over analysis why,when and how?[C].5th U.S.National Conference on Earthquake Engineering,No.1712,1994.
[8]Building Seismic Safety Council(BSSC),‘NEHRP commentary on guidelines for the seismic rehabilitation of building’[M].FEMA274,Developed for the Federal Emergency Management Agency,Washington DC,1997.
[9]郭子雄,彭兴黔.基于位移的地震反应静力弹塑性分析方法[J].结构工程师,2001,(增刊):34～39.Guo Zixiong,Peng Xingqian.Analysis of static elasto-plastic seismic response of structures based on displacement[J].Structure Engineer,2001,(Supplement):34～39.(in Chinese)
[10]Krawinkler H,Seneviratna G D P K.Pros and cons of a pushover analysis of seismic performance evaluation[J].Engineering Structures,1998,20(4～6):452～464.
[2]Mehdi Saiidi.Simple nonlinear seismic analysis of R/C structures[J].Journal of the Structural,1981,107(5):937～953.
[3]Hiroshi Kuramoto.Predicting the earthquake responding of buildings using equivalent single degree of freedom system[C].12th World Conference on Earthquake Engineering,Paper No.1039,2000.
[4]袁波.基于位移的结构弹塑性地震反应简化分析方法的研究[D].福建:华侨大学,2004.Yuan Bo.Study on simplified analysis method of elasto-plastic seismic response of structures based on displacement[D].Fujian:Hua Qiao University,2004.(in Chinese)
[5]Chopra A K,Goel R K.Capacity-demand-diagram method for estimating seismic deformation of inelastic structures[R].University of California,Berkley,Report No.PEER-1999/02,1999.
[6]Mazzoni S,Fenves G L.Displacement-based seismic design of statically-indeterminate bridge pier[C].Pro.of the12nd World Conference on Earthquake Engineering,CD-ROM,Paper No.1851-National Conference on Earthquake Engineering,No.1851～1857,2000.
[7]Lawson R S.Nonlinear static push-over analysis why,when and how?[C].5th U.S.National Conference on Earthquake Engineering,No.1712,1994.
[8]Building Seismic Safety Council(BSSC),‘NEHRP commentary on guidelines for the seismic rehabilitation of building’[M].FEMA274,Developed for the Federal Emergency Management Agency,Washington DC,1997.
[9]郭子雄,彭兴黔.基于位移的地震反应静力弹塑性分析方法[J].结构工程师,2001,(增刊):34～39.Guo Zixiong,Peng Xingqian.Analysis of static elasto-plastic seismic response of structures based on displacement[J].Structure Engineer,2001,(Supplement):34～39.(in Chinese)
[10]Krawinkler H,Seneviratna G D P K.Pros and cons of a pushover analysis of seismic performance evaluation[J].Engineering Structures,1998,20(4～6):452～464.
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