斜拉-连续刚构组合梁桥车-桥耦合动力响应分析
|
摘要
以某斜拉-连续刚构组合梁桥为例,通过建立列车与桥梁的车-桥耦合动力分析模型,并根据势能不变值原理及形成结构矩阵的"对号入座"法则,导出了车桥系统的空间振动矩阵方程。计算了国产CRH2型列车以不同速度通过该组合体系桥梁时的空间振动响应,基于列车走行性评价指标,检算该桥是否具有足够的横向、竖向刚度及良好的运营平稳性等动力特性,并对不同车速下桥梁响应的变化规律进行了研究,所得结果可为同类桥梁的相关评价分析提供参考。
Taking a cable-stayed and continuous rigid-frame composite bridge as an example,the vehicle-bridge coupling dynamic analysis model between train and bridge was built and then the spatial vibration equations in matrix form of the system were derived,based on the variational principle of the stationary potential energy and the set-in-right position rule of forming structural matrices.Based on the train runability evaluation,the spatial vibration responses were calculated when the domestic CRH2 train run through the composite bridge at different speeds in order to test whether the bridge has sufficient lateral and vertical rigidity and good operation stability of dynamic characteristics,etc.,meanwhile,the change rule of bridge response at different speeds was studied.The results can provide a reference to correlated bridges for evaluation and analysis.
Taking a cable-stayed and continuous rigid-frame composite bridge as an example,the vehicle-bridge coupling dynamic analysis model between train and bridge was built and then the spatial vibration equations in matrix form of the system were derived,based on the variational principle of the stationary potential energy and the set-in-right position rule of forming structural matrices.Based on the train runability evaluation,the spatial vibration responses were calculated when the domestic CRH2 train run through the composite bridge at different speeds in order to test whether the bridge has sufficient lateral and vertical rigidity and good operation stability of dynamic characteristics,etc.,meanwhile,the change rule of bridge response at different speeds was studied.The results can provide a reference to correlated bridges for evaluation and analysis.
引文
[1]严国敏.现代斜拉桥[M].成都:西南交通大学出版社,2000.YAN Guomin.Modern cable-stayed bridge[M].Cheng-dou:Southwest JiaoTong University Press,2000.
[2]张永亮,陈兴冲,郭永强.塔梁间纵向弹性约束对铁路斜拉桥动力特性及地震反应的影响[J].铁道科学与工程学报.2011.8(2):21-25.ZHANG Yongliang,CHEN Xingchong,GUO Yongqiang.Influnce of longitudinal elastic constraints on dynamiccharateristic and seismic response of railway cable-stayed bridge[J].Journal of Railway Science and Engi-neering,2011.8(2):21-25.
[3]冯东明,李爱群,李建慧,等.独塔斜拉与连续刚构组合桥梁动力特性及参数影响分析[J].重庆交通大学学报:自然科学版,2010,29(3):329-332.FENG Dongming,LI Aiqun,LI Jianhui,et al.Research ondynamic behavior and parameter influence of single pyloncable-stayed and continuous rigid-frame compositebridge[J].Journal of Chongqing Jiaotong University:Nat-ural Science,2010,29(3):329-332.
[4]林莉.独塔斜拉连续刚构组合桥结构行为研究:[D].成都:西南交通大学,2009.LIN Li.The analysis study on the structure action of a sin-gle pylon cable-stayed and continous rigid frame com-posite bridge[D].Chengdou:Southwest Jiaotong Univer-sity,2009.
[5]刘士林,王似舜.斜拉桥设计[M].北京:人民交通出版社,2006.LIU Shilin,WANG Sishun.Design of cable-stayed bridge[M].Beijing:China Communications Press,2006.
[6]徐利平.混合梁斜拉桥边跨混凝土梁受力特点[J].结构分析,2003(1):12-16.XU Liping.Behavior of concrete deck in side span for hy-brid cable-stayed bridge[J].Structural Engineers,2003,(1):12-16.
[7]曾庆元,郭向荣.列车桥梁时变系统振动分析理论与应用[M].北京:中国铁道出版社,1999.ZENG Qingyuan,GUO Xiangrong.Theory and applica-tion of train-bridge time-variant system vibration analy-sis[M].Beijing:China Railway Press,1999.
[8]曾庆元,杨平.形成矩阵的“对号入座”法则与桁段有限元法[J].铁道学报,1986,8(2):48-59.ZENG Qingyuan,YANG Ping.The“set-in-right-posi-tion”rule for formulating matrix and the truss finite ele-ment method for spatial truss analysis[J].Journal of theRailway Society,1986,8(2):48-59.
[9]曾庆元.弹性系统动力学总势能不变值原理[J].华中理工大学学报,2000,28(1):1-3.ZENG Qingyuan.The principle of total potential energywith stationary value in elastic system dynamics[J].Jour-nal of Huazhong University of Science and Technology,2000,28(1):1-3.
[10]唐俊峰,伊雪倩,郭向荣.采用槽型梁桥面的大跨度钢桁拱桥车桥动力分析[J].铁道科学与工程学报.2012.9(1):30-35.TANG Junfeng,YI Xueqian,GUO Xiangrong.The train-bridge dynamic analysis of long-span steel trussedarch bridge which using channel beam as bridge deck[J].Journal of Railway Science and Engineering.2012.9(1):30-35.
[11]罗晓媛.地震作用下矮塔斜拉桥的车桥耦合振动研究:[D].长沙:中南大学,2009.LUO Xiaoyuan.Study on vehicle-bridge coupling vi-bration of the low tower cable-stayed bridge underearthquake[D].Changsha:Central South University,2009.
[12]TB/T2360—1993,铁道机车动力学性能试验鉴定方法及评定标准[S].TB/T2360—1993,Railway locomotives-specificationfor evaluation the dynamic performance and accreditationtest[S].
[13]GB/T5599—1985,铁道车辆动力学性能评定和试验鉴定规范[S].GB/T 5599—1985,Railway vehicles-specification for e-valuation the dynamic performance and accreditationtest[S].
[14]桂勇,杜彦良,李延强,等.高墩独塔部分斜拉桥动力特性分析[J].岩土工程界,2008,11(1):27-29.GUI Yong,DU Yanliang,LI Yanqiang,et al.Dynamiccharacteristic analysis of high piers and single pylon par-tial cable-stayed bridge[J].Geotechnical Engineering,2008,11(1):27-29.
[2]张永亮,陈兴冲,郭永强.塔梁间纵向弹性约束对铁路斜拉桥动力特性及地震反应的影响[J].铁道科学与工程学报.2011.8(2):21-25.ZHANG Yongliang,CHEN Xingchong,GUO Yongqiang.Influnce of longitudinal elastic constraints on dynamiccharateristic and seismic response of railway cable-stayed bridge[J].Journal of Railway Science and Engi-neering,2011.8(2):21-25.
[3]冯东明,李爱群,李建慧,等.独塔斜拉与连续刚构组合桥梁动力特性及参数影响分析[J].重庆交通大学学报:自然科学版,2010,29(3):329-332.FENG Dongming,LI Aiqun,LI Jianhui,et al.Research ondynamic behavior and parameter influence of single pyloncable-stayed and continuous rigid-frame compositebridge[J].Journal of Chongqing Jiaotong University:Nat-ural Science,2010,29(3):329-332.
[4]林莉.独塔斜拉连续刚构组合桥结构行为研究:[D].成都:西南交通大学,2009.LIN Li.The analysis study on the structure action of a sin-gle pylon cable-stayed and continous rigid frame com-posite bridge[D].Chengdou:Southwest Jiaotong Univer-sity,2009.
[5]刘士林,王似舜.斜拉桥设计[M].北京:人民交通出版社,2006.LIU Shilin,WANG Sishun.Design of cable-stayed bridge[M].Beijing:China Communications Press,2006.
[6]徐利平.混合梁斜拉桥边跨混凝土梁受力特点[J].结构分析,2003(1):12-16.XU Liping.Behavior of concrete deck in side span for hy-brid cable-stayed bridge[J].Structural Engineers,2003,(1):12-16.
[7]曾庆元,郭向荣.列车桥梁时变系统振动分析理论与应用[M].北京:中国铁道出版社,1999.ZENG Qingyuan,GUO Xiangrong.Theory and applica-tion of train-bridge time-variant system vibration analy-sis[M].Beijing:China Railway Press,1999.
[8]曾庆元,杨平.形成矩阵的“对号入座”法则与桁段有限元法[J].铁道学报,1986,8(2):48-59.ZENG Qingyuan,YANG Ping.The“set-in-right-posi-tion”rule for formulating matrix and the truss finite ele-ment method for spatial truss analysis[J].Journal of theRailway Society,1986,8(2):48-59.
[9]曾庆元.弹性系统动力学总势能不变值原理[J].华中理工大学学报,2000,28(1):1-3.ZENG Qingyuan.The principle of total potential energywith stationary value in elastic system dynamics[J].Jour-nal of Huazhong University of Science and Technology,2000,28(1):1-3.
[10]唐俊峰,伊雪倩,郭向荣.采用槽型梁桥面的大跨度钢桁拱桥车桥动力分析[J].铁道科学与工程学报.2012.9(1):30-35.TANG Junfeng,YI Xueqian,GUO Xiangrong.The train-bridge dynamic analysis of long-span steel trussedarch bridge which using channel beam as bridge deck[J].Journal of Railway Science and Engineering.2012.9(1):30-35.
[11]罗晓媛.地震作用下矮塔斜拉桥的车桥耦合振动研究:[D].长沙:中南大学,2009.LUO Xiaoyuan.Study on vehicle-bridge coupling vi-bration of the low tower cable-stayed bridge underearthquake[D].Changsha:Central South University,2009.
[12]TB/T2360—1993,铁道机车动力学性能试验鉴定方法及评定标准[S].TB/T2360—1993,Railway locomotives-specificationfor evaluation the dynamic performance and accreditationtest[S].
[13]GB/T5599—1985,铁道车辆动力学性能评定和试验鉴定规范[S].GB/T 5599—1985,Railway vehicles-specification for e-valuation the dynamic performance and accreditationtest[S].
[14]桂勇,杜彦良,李延强,等.高墩独塔部分斜拉桥动力特性分析[J].岩土工程界,2008,11(1):27-29.GUI Yong,DU Yanliang,LI Yanqiang,et al.Dynamiccharacteristic analysis of high piers and single pylon par-tial cable-stayed bridge[J].Geotechnical Engineering,2008,11(1):27-29.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心