船舶撞击作用下车桥系统动力响应及高速列车运行安全分析

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (6) : 155-161.

论文

将船舶撞击力时程作为系统的外部激励，建立了撞击荷载作用下的车桥系统动力分析模型。以一座 (32+48+32) m双线预应力混凝土连续梁桥和国产CRH2高速列车为例，模拟船舶撞击力作用于桥墩时列车过桥的全过程，分析了桥梁和车辆的动力响应。结果表明：船舶撞击作用大幅度增大了桥梁的横向位移和加速度响应，显著影响了桥上高速列车的运行安全。探讨了船舶撞击荷载作用下的桥上高速列车走行安全评价方法，综合分析了列车速度和荷载撞击强度对列车运行安全的影响，在此基础上给出了列车速度－撞击力强度安全阈值曲线。

作者信息 +

Dynamic analysis of train-bridge system under vessel collision and running safety evaluation of high-speed train

With a vessel collision force as external load, a dynamic analysis model is established for a coupled train-bridge system subjected to a collision-load. A (32+48+32) m continuous bridge with PC box-girders and a Chinese-made CRH2 high-speed train are considered as a case study. While the vessel collision load acts on the pier, the whole histories of the train running on the bridge are simulated, and the dynamic responses of the bridge and the train are calculated. The results show that the vessel collision load greatly increases the dynamic responses of the bridge, and remarkably affects the running safety of the CRH2 train. A method to evaluate the running safety of high-speed trains on the bridge subjected to collision load is investigated, and the influence of train speed and collision intensity on the train running safety is comprehensively analyzed, based on which the safety threshold curve of train-speed and collision intensity is proposed.

Author information +

文章历史 +

摘要

将船舶撞击力时程作为系统的外部激励，建立了撞击荷载作用下的车桥系统动力分析模型。以一座 (32+48+32) m双线预应力混凝土连续梁桥和国产CRH2高速列车为例，模拟船舶撞击力作用于桥墩时列车过桥的全过程，分析了桥梁和车辆的动力响应。结果表明：船舶撞击作用大幅度增大了桥梁的横向位移和加速度响应，显著影响了桥上高速列车的运行安全。探讨了船舶撞击荷载作用下的桥上高速列车走行安全评价方法，综合分析了列车速度和荷载撞击强度对列车运行安全的影响，在此基础上给出了列车速度－撞击力强度安全阈值曲线。

Abstract

With a vessel collision force as external load, a dynamic analysis model is established for a coupled train-bridge system subjected to a collision-load. A (32+48+32) m continuous bridge with PC box-girders and a Chinese-made CRH2 high-speed train are considered as a case study. While the vessel collision load acts on the pier, the whole histories of the train running on the bridge are simulated, and the dynamic responses of the bridge and the train are calculated. The results show that the vessel collision load greatly increases the dynamic responses of the bridge, and remarkably affects the running safety of the CRH2 train. A method to evaluate the running safety of high-speed trains on the bridge subjected to collision load is investigated, and the influence of train speed and collision intensity on the train running safety is comprehensively analyzed, based on which the safety threshold curve of train-speed and collision intensity is proposed.

导出引用

夏超逸，张楠，夏禾，崔堃鹏. 船舶撞击作用下车桥系统动力响应及高速列车运行安全分析[J]. 振动与冲击, 2015, 34(6): 155-161

XIA Chaoyi, XIA He, ZHANG Nan, CUI Kunpeng. Dynamic analysis of train-bridge system under vessel collision and running safety evaluation of high-speed train[J]. Journal of Vibration and Shock, 2015, 34(6): 155-161

参考文献

[1] Larry D, Olson P E. Dynamic bridge substructure evaluation and monitoring[R]. Report No. FHWA-RD-03 -089, US Federal Highway Administration, 2005.
[2] Wuttrich R, Wekezer J, Yazdani N, et al. Performance evaluation of existing bridge fenders for ship impact[J]. Journal of Performance of Construction Facilities, 2001, 15(1): 17-23.
[3] Wardhana K, Hadipriono F C. Analysis of recent bridge failures in the united states [J]. Journal of Performance of Construction Facilities, 2003, 17(3): 144-150.
[4] Hartik I E, Shaaban A M, Gesund H, et al. United States bridge failures, 1951-1988 [J]. Journal of Performance of Construction Facilities, 1990, 4(4): 272-277.
[5] 董正方，郭进，王君杰. 桥梁倒塌事故综述及其防治对策[J]. 公路，2009，2: 30-32.
DONG Zheng-fang, GUO Jin, WANG Jun-jie. Review of bridge collapse and prevention measures[J]. Highway, 2009, 2: 30-32.
[6] Sharma H, Hurlebaus S, Gardoni P. Performance-based response evaluation of reinforced concrete columns subject to vehicle impact[J]. International Journal of Impact Engineering, 2012 (43): 52-62.
[7] EL-Tawil S, Severino E, Fonseca P. Vehicle collision with bridge piers [J]. Journal of Bridge Engineering, 2005, l0(3): 345-353.
[8] 宣言, 张煅. 因船只撞击桥墩引起铁路桥梁上列车的脱轨[J]. 国外桥梁, 2001(4): 60-64.
XUAN Yan, ZHANG Duan. Derailment of train induced by vessel collission on railway bridge pier[J]. Bridges Abroad, 2001(4): 60-64.
[9] Yang Y B, Yau J D. Vehicle-bridge interaction dynamics – with application to high-speed railways[M]. Singapore: World Scientific Publisher, 2004.
[10] Xia H, De Roeck G, Goicolea J M. Bridge Vibration and controls: new research[M].New York: Nova Science Publishers, 2011.
[11] 夏超逸,雷俊卿,张楠. 流冰撞击力作用下列车-简支梁桥耦合振动分析[J]. 振动与冲击,2012, 31(13):125-129.
XIA Chao-yi, LEI Jun-qing, ZHANG Nan. Coupled vibration analysis for train and simply-supported bridge system subjected to floating-ice collision[J]. Journal of Vibration and Shock, 2012, 31(13): 125-129.
[12] 夏超逸,张楠,夏禾. 汽车撞击作用下车桥系统的动力响应及高速列车运行安全分析[J]. 工程力学,2013,30(8): 119-126.
XIA Chao-yi, ZHANG Nan, XIA He. Dynamic responses of train-bridge system subjected to truck collision and running safety evaluation of high-speed trains[J]. Engineering Mechanics, 2013, 30(8): 119-126.
[13] British standard BS EN1991-1-7,Eurocode 1-actions on structures general action: accidental actions [S]. 2006.
[14] Fan W, Yuan W C. Shock spectrum analysis method for dynamic demand of bridge structures subjected to barge collisions[J]. Computers and Structures, 2012, 90/91: 1-12.
[15] 王君杰，陈诚. 桥墩在船舶撞击作用下的损伤仿真研究[J]. 工程力学,2007, 24(7): 156-160.
WANG Jun-jie, CHEN Cheng. Simulation of damage for bridge pier subjected to ship impact [J]. Engineering Mechanics, 2007, 24 (7): 156-160.
[16] 陈诚. 桥梁设计船撞力及损伤状态仿真研究[D].上海：同济大学，2006.
[17] 胡志强,顾永宁,高震,等. 基于非线性数值模拟的船桥碰撞力快速计算[J]. 工程力学, 2005,22(3):235-240.
HU Zhi-qiang, GU Yong-ning, GAO Zhen, et al. Fast evaluation of ship-bridge collision force based on nonlinear numerical simulation[J]. Engineering Mechanics, 2005, 22 (3): 235-240.