从中美规范比较探讨桥梁结构抗震体系
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摘要
中国和美国都即将推出新一代的桥梁抗震设计规范。经过多次修订的美国桥梁抗震规范是一套真正意义上的基于性能要求的结构设计规范,代表了未来结构设计规范的发展方向。《AASHTO桥梁抗震指南》中第一次明确提出了合理抗震体系的概念,并且通过传力路径上的抗震单元以及位移限制和连接措施保证了抗震体系基本特征的实现。从美国规范中汲取经验、吸收先进的研究成果,并对我国的规范进行适当的修订和调整是有着重要意义的。本文在对两本规范中与桥梁抗震体系相关内容进行分析比较的基础上,通过对合理抗震体系的特征和各组成部分进行系统剖析,以期阐明桥梁抗震体系的合理设计,并为我国新抗震规范的修订以及桥梁工程师的抗震设计提供参考。
Both of China and America are going to pulish the new bridge seismic design specifications.The American bridge seismic specification which has been revised many times is a real set of structure design specifications on the basis of performance requirement.It represented the developing direction of the structure design specification in the future.The AASHTO Guide Specifications for LRFD Seismic Bridge Design provides the reasonable Earthquake Resistance System explicitly for the first time.It also provides Earthquake Resistance Element on the load path and displacement restraint and connection means to achieve the basic characteristic of Earthquake Resistance System.Therefore,it's a matter of great significance to draw experience and absorb the advanced research results into our country's specifications revising work from USA's.Based on the analysis and comparison work on the two codes as mentioned above about the associated content of earthquake resistance system of bridge structure,the reasonable design of bridge earthquake resistance system is clarified by systemically analyzing the characteristics and components of reasonable earthquake resistance system,and the reference is provided for the revision of new bridge seismic design specifications and the bridge seismic design of bridge engineer of our country.
Both of China and America are going to pulish the new bridge seismic design specifications.The American bridge seismic specification which has been revised many times is a real set of structure design specifications on the basis of performance requirement.It represented the developing direction of the structure design specification in the future.The AASHTO Guide Specifications for LRFD Seismic Bridge Design provides the reasonable Earthquake Resistance System explicitly for the first time.It also provides Earthquake Resistance Element on the load path and displacement restraint and connection means to achieve the basic characteristic of Earthquake Resistance System.Therefore,it's a matter of great significance to draw experience and absorb the advanced research results into our country's specifications revising work from USA's.Based on the analysis and comparison work on the two codes as mentioned above about the associated content of earthquake resistance system of bridge structure,the reasonable design of bridge earthquake resistance system is clarified by systemically analyzing the characteristics and components of reasonable earthquake resistance system,and the reference is provided for the revision of new bridge seismic design specifications and the bridge seismic design of bridge engineer of our country.
引文
[1]AASHTO Guide Specifications for LRFD Seismic BridgeDesign[S].Subcommittee for Seismic Effects on Bridges T-3,2007
[2]AASHTO.2007.LRFD Bridge Design Specifications,4th Ed[S].American Association of State Highway andTransportation Officials,Washington,DC.
[3]Seismic design criteria,Version 1.4,Sacraments,California,California department of Transportation(CALTRANS),Division of Structures,2006
[4]NCHRP12-49(2001).Recommended LRFD Guidelinesforthe Seismic Design of Highway Bridges[R].NCHRP 12-49Project Team,MCEER,State University of New York atBuffalo,Buffalo,NY
[5]JTJ004-89,公路工程抗震设计规范[S].JTJ004-89,Seismic Design Specifications of HighwayEngineering[S](in Chinese)
[6]公路桥梁抗震设计规范(征求意见稿)JTG/T B02-01-2008,Guidelines for Seismic Design ofHighway Bridges[S](in Chinese)
[7]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001Fan Li-chu,Hu Shi-de,Ye Ai-jun.Seismic design of longspan bridges[M].Beijing:China Communications Press,2001(in Chinese)
[8]范立础,王君杰.桥梁抗震设计规范的现状与发展趋势[J].地震工程与工程振动,2001,21(3):70~77Fan Li-chu,Wang Jun-jie.Design code for earthquake-resistance of bridges:current situation and trend[J].Earthquake Engineering and Engineering Vibration,2001,21(2):70~77(in Chinese)
[9]Preistley,M.J.N.,Seible,F.and Calvi,G.M.SeismicDesign and Retrofit of Bridges.New York:John Wiley&Sons,1996
[10]范立础,李建中,王君杰.高架桥梁抗震设计[M].北京:人民交通出版社,2001Fan Li-chu,Li Jian-zhong,Wang Jun-jie.Seismic designof viaduct[M].Beijing:China Communications Press,2001(in Chinese)
[11]朱文正,刘建新.公路桥梁防落梁系统研究现状述评[J].广州大学学报,2005,4(4):347~356Zhu Wen-zheng,Liu Jian-xin.Present Development on theCollapse-proof Systems Research for Bridge[J].Journal ofGuangzhou University(Natural Science edition),2005,4(4):347~356(in Chinese)
[12]王军文,李建中,范立础.桥梁结构地震碰撞效应及防落梁措施研究现状[J].公路交通科技,2001,5(24):71~75Wang Jun-wen,Li Jian-zhong,Fan Li-chu.State of Art ofCurrent Studies on the Effect of Seismic Induced Poundingbetween Adjacent Bridge Decks and Falling-off PreventionMeasures[J].Journal of highway andtransportationresearchand development,2001,5(24),71~75(in Chinese)
[2]AASHTO.2007.LRFD Bridge Design Specifications,4th Ed[S].American Association of State Highway andTransportation Officials,Washington,DC.
[3]Seismic design criteria,Version 1.4,Sacraments,California,California department of Transportation(CALTRANS),Division of Structures,2006
[4]NCHRP12-49(2001).Recommended LRFD Guidelinesforthe Seismic Design of Highway Bridges[R].NCHRP 12-49Project Team,MCEER,State University of New York atBuffalo,Buffalo,NY
[5]JTJ004-89,公路工程抗震设计规范[S].JTJ004-89,Seismic Design Specifications of HighwayEngineering[S](in Chinese)
[6]公路桥梁抗震设计规范(征求意见稿)JTG/T B02-01-2008,Guidelines for Seismic Design ofHighway Bridges[S](in Chinese)
[7]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001Fan Li-chu,Hu Shi-de,Ye Ai-jun.Seismic design of longspan bridges[M].Beijing:China Communications Press,2001(in Chinese)
[8]范立础,王君杰.桥梁抗震设计规范的现状与发展趋势[J].地震工程与工程振动,2001,21(3):70~77Fan Li-chu,Wang Jun-jie.Design code for earthquake-resistance of bridges:current situation and trend[J].Earthquake Engineering and Engineering Vibration,2001,21(2):70~77(in Chinese)
[9]Preistley,M.J.N.,Seible,F.and Calvi,G.M.SeismicDesign and Retrofit of Bridges.New York:John Wiley&Sons,1996
[10]范立础,李建中,王君杰.高架桥梁抗震设计[M].北京:人民交通出版社,2001Fan Li-chu,Li Jian-zhong,Wang Jun-jie.Seismic designof viaduct[M].Beijing:China Communications Press,2001(in Chinese)
[11]朱文正,刘建新.公路桥梁防落梁系统研究现状述评[J].广州大学学报,2005,4(4):347~356Zhu Wen-zheng,Liu Jian-xin.Present Development on theCollapse-proof Systems Research for Bridge[J].Journal ofGuangzhou University(Natural Science edition),2005,4(4):347~356(in Chinese)
[12]王军文,李建中,范立础.桥梁结构地震碰撞效应及防落梁措施研究现状[J].公路交通科技,2001,5(24):71~75Wang Jun-wen,Li Jian-zhong,Fan Li-chu.State of Art ofCurrent Studies on the Effect of Seismic Induced Poundingbetween Adjacent Bridge Decks and Falling-off PreventionMeasures[J].Journal of highway andtransportationresearchand development,2001,5(24),71~75(in Chinese)
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