列车移动荷载与非一致地震动作用下轨道-路基系统动力响应

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (18) : 297-305.

论文

列车移动荷载与非一致地震动作用下轨道-路基系统动力响应

王成功，杨国涛

作者信息 +

Dynamic response of a track-subgrade system under moving train loads and non-uniform ground motions

WANG Chenggong， YANG Guotao

Author information +

文章历史 +

摘要

为研究列车移动荷载与非一致地震动耦合作用下轨道-路基系统动力响应规律，以京沪高铁和CRH3型列车为研究对象，建立了三维精细化有限元模型，进行了耦合荷载作用下轨道-路基系统动力响应分析。通过平稳地震动时程乘以包络函数合成了非一致地震动，参数化分析了列车运营时速、轴重及非一致地震动震级对轨道-路基系统动力响应影响规律。结果表明：轨道-路基系统响应幅值并非随列车运行速度提升而增大，存在一个包括临界速度的范围，在此范围内列车移动荷载与非一致地震动耦合作用下轨道-路基系统将会出现强烈振动。随着列车轴重或地震动PGA增大，轨道-路基系统出现更显著的震动响应。与一致激励相比，非一致激励下轨道板竖向位移峰值和竖向加速度峰值的出现时间更早。

Abstract

In order to study the law of dynamic response of the track-subgrade system under the coupling effect of moving train loads and non-uniform ground motions, a three-dimensional refined finite element model was established with Beijing-Shanghai high-speed railway and CRH3 train as the research objects, and the dynamic response analysis of track-subgrade system under combine earthquakes and moving loads was carried out. The non-stationary ground motion is synthesized by multiplying the stationary ground motion time history by the envelope function. The effects of train operating speed, axle weight and magnitude of non-uniform ground shaking on the dynamic response of track-subgrade system are analysed parametrically. The results show that the response amplitude of the track-subgrade system does not increase with the increase of train speed, and there is a range including the critical speed, in which the stronger vibration of the track-subgrade system will occur under the coupling of moving train loads and non-uniform ground motions. With the increase of train axle load or the PGA of ground motion, the track-subgrade system shows a more significant vibration response. Compared with uniform excitation, the maximum vertical displacement and the maximum vertical acceleration of the track slab appear earlier under non-uniform excitation.

导出引用

王成功, 杨国涛. 列车移动荷载与非一致地震动作用下轨道-路基系统动力响应[J]. 振动与冲击, 2024, 43(18): 297-305

WANG Chenggong, YANG Guotao. Dynamic response of a track-subgrade system under moving train loads and non-uniform ground motions[J]. Journal of Vibration and Shock, 2024, 43(18): 297-305

参考文献

[1] Montenegro P. A., Carvalho H., Ribeiro D., et al. Assessment of train running safety on bridges: A literature review [J]. Engineering Structures, 2021, 241: 112425.
[2] Yang Ming-Zhi, Zhong Sha, Zhang Lei, et al. 600 km/h moving model rig for high-speed train aerodynamics [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2022, 227: 105063.
[3] Hu Jing, Bian Xuecheng, Xu Weichang, et al. Investigation into the critical speed of ballastless track [J]. Transportation Geotechnics, 2019, 18: 142-148.
[4] 董亮, 赵成刚, 蔡德钩, 等. 高速铁路无砟轨道路基动力特性数值模拟和试验研究 [J]. 土木工程学报, 2008, 41(10): 81-86.
Dong Liang, Zhao Cheng-gang, Cai De-gou, et al. Experimental validation of a numerical model for prediction of the dynamic response of ballastless subgrade of high-speed railways [J]. China Civil Engineering Journal, 2008, 41(10): 81-86.
[5] 王晅, 张家生, 王启云. 无砟轨道路基列车动载激励及动力响应三维数值模拟 [J]. 地震工程学报, 2014, 36(4): 857-867.
WANG Xuan, ZHANG Jia-sheng, WANG Qi-yun. Three-dimensional numerical simulation for vehicle dynamic load and dynamic response of ballastless track subgrade [J]. China Earthquake Engineering Journal, 2014, 36(4): 857-867.
[6] Bian Xuecheng, Cheng Chong, Jiang Jianqun, et al. Numerical analysis of soil vibrations due to trains moving at critical speed [J]. Acta Geotechnica, 2016, 11(2): 281-294.
[7] 刘钢, 罗强, 张良, 等. 列车荷载作用下无砟轨道路基动应力特性分析 [J]. 铁道学报, 2013, 35(9): 86-93.
Liu Gang, Luo Qiang, Zhang Liang, et al. Analysis on the dynamic stress characteristics of the unballasted track subgrade under train loading [J]. Journal of the China Railway Society, 2013, 35(9): 86-93.
[8] Chen Jin, Zhou Ying, Zhou Guangxin, et al. Experimental vibration investigation on high-speed railway ballastless track-subgrade structure [J]. International Journal of Structural Stability and Dynamics, 2020, 20(7): 2050081.
[9] Wang Li, Wang Ping, Wei Kai, et al. Ground vibration induced by high speed trains on an embankment with pile-board foundation: Modelling and validation with in situ tests [J]. Transportation Geotechnics, 2022, 34: 100734.
[10] Xie Wei, Gao Guangyun, Song Jian, et al. Ground vibration analysis under combined seismic and high-speed train loads [J]. Underground Space, 2022, 7(3): 363-379.
[11] Gao M., Xu X., He R., et al. Vibration of subgrade and evaluation of derailment coefficient of train under combined earthquake-moving train load [J]. Soils and Foundations, 2021, 61(2): 386-400.
[12] 王滢, 张粮, 高盟, 等. 高速铁路弹塑性路基及轨道的地震反应特性研究 [J]. 地震工程与工程振动, 2021, 41(5): 225-237.
Wang Ying, Zhang Liang, Gao Meng, et al. Research on seismic response characteristics of high-speed railway elastoplastic subgrade and track [J]. Earthquake Engineering and Engineering Dynamics, 2021, 41(5):225-237.
[13] 张永亮, 王云, 虞庐松, 等. 行波效应对大跨上承式铁路钢桁拱桥地震反应的影响 [J]. 振动与冲击, 2020, 39(12): 213-220.
Zhang Yong-liang, Wang Yun, Yu Lu-song, et al. Influence of traveling wave effect on seismic response of a long-span deck-type railway steel truss arch bridge [J]. Journal of Vibration and Shock, 2020, 39(12): 213-220.
[14] Du X. T., Xu Y. L., Xia H. Dynamic interaction of bridge–train system under non-uniform seismic ground motion [J]. Earthquake Engineering and Structural Dynamics, 2012, 41(1): 139-157.
[15] 雷虎军, 李小珍. 非一致地震激励下列车-轨道-桥梁耦合振动模型 [J]. 西南交通大学学报, 2013, 48(5): 803-809.
Lei Hu-jun, Li Xiao-zhen. Dynamic model for train-track-bridge coupling system subjected to non-uniform seismic excitation [J]. Journal of Southwest Jiaotong University, 2013,48(5): 803-809.
[16] 徐鹏, 蔡成标. 列车-轨道-路基耦合振动及地震条件下行车安全性分析 [J]. 中国铁道科学, 2014, 35(2): 125-127.
Xu Peng, Cai Cheng-biao. Study on vibration of train-track-subgrade coupled system and running safety of train in earthquake [J]. China Railway Science, 2014, 35(2): 125-127.
[17] Bian Xuecheng, Jiang Hongguang, Chang Chao, et al. Track and ground vibrations generated by high-speed train running on ballastless railway with excitation of vertical track irregularities [J]. Soil Dynamics and Earthquake Engineering, 2015, 76: 29-43.
[18] Gao M., Xu X., He R., et al. Vibration of subgrade and evaluation of derailment coefficient of train under combined earthquake- moving train load [J]. Soils and Foundations, 2021, 61(2): 386-400.
[19] Wang Huai-Feng, Lou Meng-Lin, Chen Xi, et al. Structure–soil–structure interaction between underground structure and ground structure [J]. Soil Dynamics and Earthquake Engineering, 2013, 54: 31-38.
[20] Chen Jin, Zhou Ying. Dynamic vertical displacement for ballastless track-subgrade system under high-speed train moving loads [J]. Soil Dynamics and Earthquake Engineering, 2020, 129: 105911.
[21] 王国波, 巴峰, 孙富学, 等. 非一致激励下长大盾构隧道结构地震响应分析 [J]. 岩土工程学报, 2020, 42(7): 1228-1237.
Wang Guo-bo, Ba Feng, Sun Fu-xue, et al. Seismic response analysis of long shield tunnels under non-uniform excitation [J]. Chinese Journal of Geotechnical Engineering, 2020, 42(7): 1228-1237.
[22] Li Ling, Nimbalkar Sanjay, Zhong Rui. Finite element model of ballasted railway with infinite boundaries considering effects of moving train loads and Rayleigh waves [J]. Soil Dynamics and Earthquake Engineering, 2018, 114: 147-153.
[23] Harichandran Ronald S. Estimating the spatial variation of earthquake ground motion from dense array recordings [J]. Structural Safety, 1991, 10(1-3): 219-233.
[24] Harichandran Ronald S, Hawwari Ahmad, Sweidan Basheer N. Response of long-span bridges to spatially varying ground motion [J]. Journal of Structural Engineering, 1996, 122(5): 476-484.
[25] Clough R W Penzien J. Dynamics of Structures [M]. New York: McGraw Hill, 1993.
[26] Rodolfo Saragoni G, Hart Gary C. Simulation of artificial earthquakes [J]. Earthquake Engineering and Structural Dynamics, 1973, 2(3): 249-267.
[27] Boore David M. Simulation of ground motion using the stochastic method [J]. Pure and applied geophysics, 2003, 160(3): 635-676.
[28] Ren Dexiang, Tao Gongquan, Yang Xiaoxuan, et al. Integration of a dissipative contact force model into vehicle–track dynamics for analysing wheel–rail dynamic interaction under short-wavelength irregularity [J]. Vehicle System Dynamics, 2022: 1-26.
[29] El Kacimi A, Woodward Peter Keith, Laghrouche O, et al. Time domain 3D finite element modeling of train-induced vibration at high speed [J]. Computers and Structures, 2013, 118: 66-73.
[30] Cai Yuanqiang, Sun Honglei, Xu Changjie. Three-dimensional analyses of dynamic responses of track–ground system subjected to a moving train load [J]. Computers and Structures, 2008, 86(7): 816-824.
[31] Krylov Victor, Ferguson Colin. Calculation of low-frequency ground vibrations from railway trains [J]. Applied Acoustics, 1994, 42(3): 199-213.