Abstract：The impact of floating ice is a common natural disaster of bridges in the complex and difficult mountainous areas of the Sichuan-Tibet Railway. To evaluate the effect of dynamic vibration absorbers (DVA) on vibration suppression characteristics of bridge and the running of trains on the bridge under impact loads. Based on the train-track-bridge dynamic interaction and the design method of DVA, the dynamics model of train-track-bridge-DVA considering the effects of floating ice impact loads is established. The vibration suppression of the bridge subject to the ice impact loads by DVA is investigated and the influence on the running of train on the bridge is analyzed. Results show that with the addition of DVA to the top of the bridge pier, the lateral vibration of the bridge structure under the ice impact loads can be effectively suppressed, and the dynamic indexes such as lateral acceleration of train, lateral wheel-rail force, derailment factor and wheel unloading rate are significantly reduced when the train crosses the bridge. When the speed increases to 200km/h, DVA still has a good damping effect on the dynamic response of the train. And the damping effect of train dynamic responses all increases with the increase of the mass ratio of DVA, while the running speed remains unchanged. It shows that the installation of DVA on the bridge is all beneficial to the resistance to ice impact of the railway bridge and the running of trains on the bridge.
李鹏浩1，翟婉明2，和振兴1，石广田1. 流冰撞击作用下川藏铁路桥梁振动抑制及行车安全研究[J]. 振动与冲击, 2022, 41(8): 79-85.
LI Penghao1，ZHAI Wanming2，HE Zhenxing1，SHI Guangtian1. A study on vibration suppression of a bridge in Sichuan—Tibet Railway and running safety of a train under floating ice collision. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(8): 79-85.
[1] 陈伟志，蒋关鲁，刘勇等. 川藏铁路钻孔桩加固斜坡路基的振动台试验研究[J]. 岩石力学与工程学报. 2020; 46:1-17. (doi: 10.13722/j.cnki.jrme.2020.0339)
CHEN Zhi-wei, JIANG Guan-lu, LIU Yong, et al. Shaking table test on slope subgrades reinforced by bored piles of Sichuan-Tibet railway [J]. Chinese Journal of Rock Mechanics and Engineering. 2020; 46:1-17.
[2] 夏修身，戴胜勇，陈兴冲等. 川藏铁路大跨度桥梁抗震设防标准研究[J]. 铁道学报. 2016; 38(10):85-89.
XIA Xiu-shen, DAI Sheng-yong, CHEN Xing-chong, et al. Seismic Design Criterion for Long-span Bridges of Sichuan-Tibet Railway [J]. Journal of the China Railway Society. 2016; 38(10):85-89.
[3] 杨平，杨国静，曾永平. 川藏铁路简支梁桥地震易损性及适应性分析[J]. 铁道工程学报. 2017; 38:51-57.
YANG Ping, YANG Guo-jing, ZENG Yong-ping. Analysis of Seismic Vulnerability and Adaptation of Simply- supported Girder Bridge on Sichuan- Tibet Railway [J]. Journal of Railway Engineering Society. 2017; 38:51-57.
[4] Xia C, Xia H, Zhang N, et al. Effect of truck collision on dynamic response of train-bridge systems and running safety of high-speed trains. International Journal of Structural Stability and Dynamics. 2013; 13(3):1-18.
[5] Li Y, Deng J, Wang B, et al. Running Safety of Trains under Vessel-Bridge Collision. Shock and Vibration. 2015; 1-12. (doi: 10.1155/2015/252574)
[6] Zhang X, Wen Z, Chen W, et al. Dynamic analysis of coupled train-track-bridge system subjected to debris flow impact. Advances in Structural Engineering. 2019; 22(4): 919-934.
[7] Zhang X, Wang X, Chen W, et al. Numerical study of rockfall impact on bridge piers and its effect on the safe operation of high-speed trains. Structure and Infrastructure Engineering, 2020: 1-19. (doi: 10.1080/15732479.2020.1730406)
[8] Lin Chen, Sherif El-Tawil, Yan Xiao. Response spectrum-based method for calculating the reaction force of piers subjected to truck collisions . Engineering Structures, 2017; 150: 852-863.
[9] 夏超逸，张楠，夏禾，等. 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 Chao-yi, ZHANG Nan, XIA He, et al. Dynamic analysis of a train-bridge system under vessel collision and running safety evaluation of its high-speed train [J]. Journal of Vibration and Shock. 2015, 34(6):155-161.
[10] 夏超逸. 撞击荷载作用下车桥系统的动力响应及高速列车运行安全研究[D]. 北京: 北京交通大学. 2012.
XIA Chao-yi. Dynamic responses of train-bridge system subjected to collision loads and running safety evaluation of high-speed trains [D]. Beijing: Beijing Jiaotong University, 2012.
[11] L. Frýba. Dynamic behavior of bridges due to high speed trains. Bridges for High Speed Railways eds. R. Delgado, R. Calcada and A. Campos (University of Porto, Porto, 2004), pp. 137-158.
[12] Yang Y, Yau J D and Wu Y. Vehicle-Bridge Interaction Dynamics-With Application to High-Speed Railways. Singapore: World Scientific Publisher, 2004.
[13] Zhai W, Han Z, Chen Z, et al. Train–track–bridge dynamic interaction: a state-of-the-art review. Vehicle System Dynamics. 2019; 57(7): 984-1027.
[14] Zhu Z, Gong W, Wang L, et al. Efficient assessment of 3D train-track-bridge interaction combining multi-time-step method and moving track technique. Engineering Structures. 2019; 183: 290-302.
[15] Zhu Z, Gong W, Wang L, et al. A hybrid solution for studying vibrations of coupled train–track–bridge system. Advances in Structural Engineering. 2017; 20(11): 1699-1711.
[16] He X, Zhou L, Chen Z, et al. Effect of wind barriers on the flow field and aerodynamic forces of a train–bridge system. Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit ，2020; 0(0): 1-15.
[17] Jin Z, Pei S, Li X, et al. Effect of vertical ground motion on earthquake-induced derailment of railway vehicles over simply-supported bridges. Journal of Sound and Vibration. 2016; 383: 277-294.
[18] Xia C, Xia H, G. De Roeck. Dynamic response of a train–bridge system under collision loads and running safety evaluation of high-speed trains. Computers and Structures. 140(2014): 22-38.
[19] Xia C, Lei J, Xia H, et al. Dynamic analysis of a coupled high-speed train and bridge system subjected to collision load. Journal of Sound and Vibration. 331(2012): 2334-2347.
[20] Frahm H. Device for damping vibrations of bodies ：US1909525455A [P]. U.S.Patent 989, 958, 1911-4-18．
[21] Ormondroyd J, Den Hartog J P. The theory of the dynamic vibration absorber. ASME Journal of Applied Mechanics, 1928; 50: 9-22.
[22] Hahnkamm E. The damping of the foundation vibrations at varying excitation frequency. Master of Architecture. 1932; 4: 192-201．
[23] Zhu S, Yang J, Yan H, et al. Low-frequency vibration control of floating slab tracks using dynamic vibration absorbers. Vehicle System Dynamics. 2015; 53(9): 1296-1314．
[24] 杨吉忠，翟婉明. 基于动力吸振原理的高墩桥梁抗震特性研究[J]. 铁道工程学报. 2019; 253(10):59-65.
YANG Ji-zhong, ZHAI Wan-ming. Research on the Seismic Behavior of High Pier Bridge Based on Dynamic Vibration Absorption Principle [J]. Journal of Railway Engineering Society. 2015; 53(9): 1296-1314．
[25] 胡连军，杨吉忠．高墩铁路桥梁减震技术进展研究[J]．铁道工程学报. 2016; 33(6): 72-76．
HU Lian-jun, YANG Ji-zhong. Research on the Progress of Seismic Control for High Pier Railway Bridge [J]. Journal of Railway Engineering Society. 2016; 33(6): 72-76．
[26] 翟婉明. 列车-轨道-桥梁动力相互作用理论与工程应用[M].北京:科学出版社，2011.
ZHAI Wan-ming. Train-Track-Bridge Dynamic Interaction：Theory and Engineer Application [M]. Beijing: Science Press, 2011.
[27] Zhai W, Xia H, Cai C, et al. High-speed train-track-bridge dynamic interactions-Part I: theoretical model and numerical simulation. International Journal of Rail Transportation. 2013; 1(1): 3-24.
[28] 李小珍，雷虎军，朱 艳．车-轨-桥动力系统中Rayleigh阻尼参数分析[J]．振动与冲击. 2013; 32(21): 52-57+73．
LI Xiao-zhen, LEI Hu-jun, ZHU Yan. Analysis of rayleigh damping parameters in a dynamic system of vehicle-track-bridge [J]. Journal of Vibration and Shock. 2013; 32(21): 52-57+73．
[29] Chen G, Zhai W. A New Wheel-Rail Spatially Dynamic Coupling Model and its Verification. Vehicle System Dynamics. 2004; 41(4): 301-322.
[30] J.J.Kalker. A fast algorithm for the simplified theory of rolling contact. Vehicle System Dynamics. 1982; 11(1): 1-13.
[31] 牛津. 高寒地区江河流冰与桥墩相互作用的研究[D]. 哈尔滨:哈尔滨工业大学. 2018.
Niu Jin. Study on Interaction Between Floating Ice on Rivers and Piers in Cold Region. [D]. Harbin: Harbin Institute of Technology, 2018.
[32] Ozer MB, Royston TJ. Extending Den Hartog’s vibration absorber technique to multi-degree-of-freedom systems. Journal of Vibration and Acoustics ，2005; 127(4):341–350.
[33] Chen Z, Han Z, Zhai W, et al. TMD design for seismic vibration control of high-pier bridges in Sichuan–Tibet Railway and its influence on running trains. Vehicle System Dynamics, 2018; (4): 1-19.
[34] 张庆龙，朱胜阳，蔡成标等．动力吸振器在浮置板轨道低频振动控制中的应用[J]．工程力学. 2016; 33(9): 212-219．
ZHANG Qing-long, ZHU Sheng-yang, CAI Cheng-biao, et al. Application of dynamic vibration absorbers in low-frequency vibration control of floating slab tracks [J]. Engineering Mechanics. 2016; 33(9): 212-219．
[35] 李鹏浩, 李忠龙, 朱胜阳, 等. 冰击荷载作用下高速车辆-轨道-桥梁系统耦合振动分析[J]. 中国公路学报. (已录用)
LI Peng-hao, LI Zhong-long, ZHU Sheng-yang, et al. Coupled vibration analysis for high-speed train-track-bridge system subjected to floating ice collision[J]. China Journal of Highway and Transport. (accepted)
