高速公路钢筋混凝土桥梁地震易损性曲线建立方法
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摘要
总结了地震作用下高速公路钢筋混凝土桥梁主要构件的理论易损性曲线的建立方法及其基本步骤,并且应该考虑到地面运动、本地土壤条件以及桥梁本身参数等不确定性。进一步说明如何考虑桥梁主要易损构件,如桥墩、支座和桥台等对整个桥梁体系易损性的影响,并且利用概率工具从单个构件的易损性直接预计桥梁体系的易损性,表明桥梁作为一个体系,比任何一个单独的构件更易损。
An analytical method and it's procedures to obtain analytical fragility curves of the major components of reinforced concrete highway bridges under earthquake is generalized considering uncertainties of seismic ground motion,local site condition and parameters of the bridge itself.What's more,the contribution of the major components of the bridge,such as the columns,bearings and abutments,to its overall bridge system fragility is considered and probability tools is utilized to directly estimate the bridge system fragility from the individual component fragilities.This study shows that the bridge as a system is more fragile than any one of the individual components.
An analytical method and it's procedures to obtain analytical fragility curves of the major components of reinforced concrete highway bridges under earthquake is generalized considering uncertainties of seismic ground motion,local site condition and parameters of the bridge itself.What's more,the contribution of the major components of the bridge,such as the columns,bearings and abutments,to its overall bridge system fragility is considered and probability tools is utilized to directly estimate the bridge system fragility from the individual component fragilities.This study shows that the bridge as a system is more fragile than any one of the individual components.
引文
[1]张菊辉,胡世德.桥梁地震易损性分析的研究现状[J].结构工程师,2005,21(5):76-80.
[2]Kevin Mackie and Bozidar Stojadinovic.Probabilistic seismic de-mand model for California highway bridges[J].Journal of BridgeEngineering,2001,6:468-481.
[3]Shome N,Cornell C A,Bazzurro P,et al.Earthquake,records,and nonlinear response[J].EERI Earthquake Spectra,1998,14(3):467-500.
[4]Cornell A C,Jalayer F,Hamburger R O.Probabilistic basis for2000 SAC federal emergency management agency steel momentframe guidelines[J].Journal of Structural Engineering,2002,128:526-532.
[5][美]Clough R,Penzien J.王光远,等译校.结构动力学(2版(修订本))[M].北京:高等教育出版社,2006:446-450.
[6]Shome,Nilesh,Cornell,Allin C.Normalization and scaling acceler-ograms for nonlinear structural analysis[A].Proceedings,Sixth U.S.National Conference on Earthquake Engineering,EarthquakeEngineering Research Inst.,Oakland,California,1998.
[7]Hwang Hand Huo J R.Generation of hazard-consistent ground mo-tions[J].Soil Dynamics and Earthquake Engineering,1994,13(6):377-386.
[8]Hwang H,刘晶波.地震作用下钢筋混凝土桥梁结构易损性分析[J].土木工程学报,2004,37(6):47-51.
[9]Kevin Mackie and Bozidar Stojadinovic.Probabilistic seismic de-mand models for multi-span highway overpass bridges[A].15thASCE Engineering Mechanics Conference June 2-5,2002.
[10]Eunsoo Choi,Reginald DesRoches,Bryant Nielson.Seismic fragil-ity of typical bridges in moderate seismic zones[J].EngineeringStructures,2004,26:187-199.
[11]FEMA.HAZUS-MHMR1:Technical Manual,Federal EmergencyManagement Agency,Washington,DC,2003.
[12]HAZUS.Earthquake loss estimation methodology.Technical Man-ual.National Institute of Building for Federal Emergency Manage-ment Agency.Washington(DC),1997.
[13]Bryant G.Nielson and Reginald DesRoches.Seismic fragilitymethodology of highway bridges[A].Structure Congress 2006:Structural Engineering and Public Safety.
[14]Bryant G.Nielson and Reginald DesRoches.Seismic fragilitymethodology for highway bridges using a component level approach[J].Earthquake Engineering and Structural Dynamics(in press),2006.
[15]Bryant G.Nielson and Reginald DesRoches.Seismic fragility meth-odology for bridges:a Tool for Retrofit Prioritization[J].Earth-quake Engineering,2003:1060-1070.
[16]George Deodatis,A.M.Asce,Vinita Saxena,St.Member ASCE,Masanobu Shinozuka,H.M.AS CE.Effect of spatial variability ofground motion on bridge fragility curves[A].8thASCE SpecialtyConference on Probabilistic Mechanics and Structural Reliability,2000:1-6.
[17]Kim S H,Feng M Q.Fragility analysis of bridges under groundmotion with spatial variation[J].International Journal of Non-line-ar Mechanics,2003,38:705-721.
[2]Kevin Mackie and Bozidar Stojadinovic.Probabilistic seismic de-mand model for California highway bridges[J].Journal of BridgeEngineering,2001,6:468-481.
[3]Shome N,Cornell C A,Bazzurro P,et al.Earthquake,records,and nonlinear response[J].EERI Earthquake Spectra,1998,14(3):467-500.
[4]Cornell A C,Jalayer F,Hamburger R O.Probabilistic basis for2000 SAC federal emergency management agency steel momentframe guidelines[J].Journal of Structural Engineering,2002,128:526-532.
[5][美]Clough R,Penzien J.王光远,等译校.结构动力学(2版(修订本))[M].北京:高等教育出版社,2006:446-450.
[6]Shome,Nilesh,Cornell,Allin C.Normalization and scaling acceler-ograms for nonlinear structural analysis[A].Proceedings,Sixth U.S.National Conference on Earthquake Engineering,EarthquakeEngineering Research Inst.,Oakland,California,1998.
[7]Hwang Hand Huo J R.Generation of hazard-consistent ground mo-tions[J].Soil Dynamics and Earthquake Engineering,1994,13(6):377-386.
[8]Hwang H,刘晶波.地震作用下钢筋混凝土桥梁结构易损性分析[J].土木工程学报,2004,37(6):47-51.
[9]Kevin Mackie and Bozidar Stojadinovic.Probabilistic seismic de-mand models for multi-span highway overpass bridges[A].15thASCE Engineering Mechanics Conference June 2-5,2002.
[10]Eunsoo Choi,Reginald DesRoches,Bryant Nielson.Seismic fragil-ity of typical bridges in moderate seismic zones[J].EngineeringStructures,2004,26:187-199.
[11]FEMA.HAZUS-MHMR1:Technical Manual,Federal EmergencyManagement Agency,Washington,DC,2003.
[12]HAZUS.Earthquake loss estimation methodology.Technical Man-ual.National Institute of Building for Federal Emergency Manage-ment Agency.Washington(DC),1997.
[13]Bryant G.Nielson and Reginald DesRoches.Seismic fragilitymethodology of highway bridges[A].Structure Congress 2006:Structural Engineering and Public Safety.
[14]Bryant G.Nielson and Reginald DesRoches.Seismic fragilitymethodology for highway bridges using a component level approach[J].Earthquake Engineering and Structural Dynamics(in press),2006.
[15]Bryant G.Nielson and Reginald DesRoches.Seismic fragility meth-odology for bridges:a Tool for Retrofit Prioritization[J].Earth-quake Engineering,2003:1060-1070.
[16]George Deodatis,A.M.Asce,Vinita Saxena,St.Member ASCE,Masanobu Shinozuka,H.M.AS CE.Effect of spatial variability ofground motion on bridge fragility curves[A].8thASCE SpecialtyConference on Probabilistic Mechanics and Structural Reliability,2000:1-6.
[17]Kim S H,Feng M Q.Fragility analysis of bridges under groundmotion with spatial variation[J].International Journal of Non-line-ar Mechanics,2003,38:705-721.
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