基于破坏同步性的高桥墩体系抗震设计方法研究
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摘要
将高墩桥梁结构中所有的桥墩作为一个完整体系,通过研究桥墩体系在地震作用下的破坏同步性探索了桥墩体系抗震能力发挥的情况。根据破坏标准和破坏同步性系数,研究了基于强度方法设计的桥墩体系的破坏同步性,分析了其不足之处。在此基础上,提出了基于桥墩体系破坏同步性的抗震设计方法,并对该方法与基于强度的设计方法进行了对比分析。工程算例分析结果表明,该方法对于充分发挥桥墩体系中所有桥墩的抗震潜能是有效的。
Taking all piers of the high pier bridge structure as a complete system,this paper explored the structural aseismic capacity through the study on damage synchronicism of pier system under earthquake. According to damage criteria and damage synchronization coefficient,the damage synchronism of bridge pier system that is designed based on strength method was studied,and its disadvantages were analyzed. On this base,the seismic design method based on damage synchronism of bridge pier system was put forward. Moreover,comparison between the method and the design method based on the strength was carried out. Case analysis result indicates that this method is effective in giving full play to the potential aseismic capacity of bridge pier system.
Taking all piers of the high pier bridge structure as a complete system,this paper explored the structural aseismic capacity through the study on damage synchronicism of pier system under earthquake. According to damage criteria and damage synchronization coefficient,the damage synchronism of bridge pier system that is designed based on strength method was studied,and its disadvantages were analyzed. On this base,the seismic design method based on damage synchronism of bridge pier system was put forward. Moreover,comparison between the method and the design method based on the strength was carried out. Case analysis result indicates that this method is effective in giving full play to the potential aseismic capacity of bridge pier system.
引文
[1]JTG/TB02-01-2008公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.JTG/TB02-01-2008 Guidelines for Seismic Design of Highway Bridges[S].Beijing:China Communications Press,2008.(in Chinese)
[2]卢皓,管仲国,李建中.高阶振型对高墩桥梁抗震性能的影响及其识别[J].振动与冲击,2012,17:81-85,98.LU Hao,GUAN Zhongguo,LI Jianzhong.Effect of higher modal shapes on aseismic performance of a bridge with high piers and its identification[J].Journal of Vibration and Shock,2012,17:81-85,98.(in Chinese)
[3]李宇,朱晞,杨庆山.多振型效应对铁路高柔桥墩弹塑性地震响应的影响[J].铁道学报,2011,33(11):99-105.LI Yu,ZHU Xi,YANG Qingshan.Effects of Multiple-mode Vibration on Elastic-plastic Seismic Responses of High Flexible Piers of Railway Bridge[J].Journal of The China Railway Society,2011,33(11):99-105.(in Chinese)
[4]梁智垚.桥梁高墩位移延性能力计算方法研究[J].工程抗震与加固改造,2005,27(5):57-62.LIANG Zhiyao.Study on Calculational methods of displacement ductility capacity of tall pier[J].Earthquake Resistant Engineering and Retrofitting,2005,27(5):57-62.(in Chinese)
[5]李建中,宋晓东,范立础.桥梁高墩位移延性能力的探讨[J].地震工程与工程振动,2005,25(1):43-48.L I Jianzhong,SONG Xiaodong,FAN Lichu.Investigation for displacement ductility capacity of tall piers[J].Earthquake Engineering and Engineering Vibration,2005,25(1):43-48.(in Chinese)
[6]Ceravolo R,Demarie G V,Giordano L,et al.Problems in applying code-specified capacity design procedures to seismic design of tall piers[J].Engineering Structures,2009,31(8):1811-1821.
[7]叶爱君,管仲国.桥梁抗震[M].北京:人民交通出版社,2011.YE Aijun,GUAN Zhongguo.Seismic Design of Bridges[M].Beijing:China Communications Press,2011.(in Chinese)
[8]Guirguis E B,Mehanny S S F,ASCE M.Evaluating code criteria for regular seismic behavior of continuous concrete box girder bridges with unequal height piers[J].Journal of Bridge Engineering.2013,18(6):486-498.
[9]ComitéEuropéen de Normalisation(CEN).(2005c).Design of structures for earthquake resistance.Part 2:Bridges.[R]EN 1998-2,CEN,Brussels,Belgium.
[10]夏修身.铁路高墩抗震设计方法研究[D].兰州:兰州交通大学,2012.Xia Xiushen.Research on Seismic Design of Tall Piers for Railway Bridge[D].Lanzhou:Lanzhou Jiaotong University,2012.(in Chinese)
[11]李立峰,黄佳梅,吴文朋,王连华.基于IDA的高墩大跨桥梁抗震性能评估[J].地震工程与工程振动,2012,32(1):68-77.LI Lifeng,HUANG Jiamei,WU Wenpeng,WANG Lianhua.Research on the seismic performance of bridge with high piers and long spans using Incremental Dynamic Analysis[J].Earthquake Engineering and Engineering Vibration,2012,32(1):68-77.(in Chinese)
[12]http://peer.berkeley.edu/Open Sees Navigator/
[2]卢皓,管仲国,李建中.高阶振型对高墩桥梁抗震性能的影响及其识别[J].振动与冲击,2012,17:81-85,98.LU Hao,GUAN Zhongguo,LI Jianzhong.Effect of higher modal shapes on aseismic performance of a bridge with high piers and its identification[J].Journal of Vibration and Shock,2012,17:81-85,98.(in Chinese)
[3]李宇,朱晞,杨庆山.多振型效应对铁路高柔桥墩弹塑性地震响应的影响[J].铁道学报,2011,33(11):99-105.LI Yu,ZHU Xi,YANG Qingshan.Effects of Multiple-mode Vibration on Elastic-plastic Seismic Responses of High Flexible Piers of Railway Bridge[J].Journal of The China Railway Society,2011,33(11):99-105.(in Chinese)
[4]梁智垚.桥梁高墩位移延性能力计算方法研究[J].工程抗震与加固改造,2005,27(5):57-62.LIANG Zhiyao.Study on Calculational methods of displacement ductility capacity of tall pier[J].Earthquake Resistant Engineering and Retrofitting,2005,27(5):57-62.(in Chinese)
[5]李建中,宋晓东,范立础.桥梁高墩位移延性能力的探讨[J].地震工程与工程振动,2005,25(1):43-48.L I Jianzhong,SONG Xiaodong,FAN Lichu.Investigation for displacement ductility capacity of tall piers[J].Earthquake Engineering and Engineering Vibration,2005,25(1):43-48.(in Chinese)
[6]Ceravolo R,Demarie G V,Giordano L,et al.Problems in applying code-specified capacity design procedures to seismic design of tall piers[J].Engineering Structures,2009,31(8):1811-1821.
[7]叶爱君,管仲国.桥梁抗震[M].北京:人民交通出版社,2011.YE Aijun,GUAN Zhongguo.Seismic Design of Bridges[M].Beijing:China Communications Press,2011.(in Chinese)
[8]Guirguis E B,Mehanny S S F,ASCE M.Evaluating code criteria for regular seismic behavior of continuous concrete box girder bridges with unequal height piers[J].Journal of Bridge Engineering.2013,18(6):486-498.
[9]ComitéEuropéen de Normalisation(CEN).(2005c).Design of structures for earthquake resistance.Part 2:Bridges.[R]EN 1998-2,CEN,Brussels,Belgium.
[10]夏修身.铁路高墩抗震设计方法研究[D].兰州:兰州交通大学,2012.Xia Xiushen.Research on Seismic Design of Tall Piers for Railway Bridge[D].Lanzhou:Lanzhou Jiaotong University,2012.(in Chinese)
[11]李立峰,黄佳梅,吴文朋,王连华.基于IDA的高墩大跨桥梁抗震性能评估[J].地震工程与工程振动,2012,32(1):68-77.LI Lifeng,HUANG Jiamei,WU Wenpeng,WANG Lianhua.Research on the seismic performance of bridge with high piers and long spans using Incremental Dynamic Analysis[J].Earthquake Engineering and Engineering Vibration,2012,32(1):68-77.(in Chinese)
[12]http://peer.berkeley.edu/Open Sees Navigator/
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