波浪-地震联合作用下高速铁路跨海斜拉桥车桥耦合振动研究

摘要
图/表
参考文献(19)
相关文章 (15)

全文: PDF (1690 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要高速铁路跨海桥梁会受到长期波浪力的作用，当地震偶然发生时还会受到地震和地震附加动水压力的作用，需研究波浪-地震联合作用的影响。基于线性波浪理论和Morsion方程模拟波浪力，采用附加质量法模拟地震附加动水压力，建立了波浪-地震联合作用下的列车-轨道-桥梁耦合振动模型。在此基础上，以某主跨400米的跨海斜拉桥为例，根据桥址处的波浪参数和地震动参数，系统研究了波浪-地震联合作用下跨海斜拉桥的车桥耦合振动问题。研究结果表明：对于高速铁路跨海斜拉桥，考虑地震附加动水压力会显著增大斜拉桥主梁跨中的横向动力响应及桥上列车的行车安全性指标；考虑波浪-地震联合作用时，桥梁的横向动力响应及列车的行车安全性指标均随波浪重现期的增大而增大；对于本文算例，单独地震作用下的安全车速阈值为250km/h，而一般波浪-地震联合作用和极端波浪-地震联合作用下在计算范围内无安全车速。本文的研究成果可为高速铁路跨海斜拉桥的设计提供技术支撑。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	雷虎军1
	林镇荣1
	温家生2
	邱官发2
	陈希茂2

关键词 ：车桥耦合振动, 地震作用, 波浪力, 动水力, 行车安全性

Abstract：The cross-sea bridge of high-speed railway will be affected by long-term wave force, and when an earthquake happens occasionally, it will also be affected by earthquake and earthquake additional hydrodynamic pressure, so it is necessary to study the influence of wave-earthquake combined action. Based on the linear wave theory and Morsion equation to simulate the wave force, the additional mass method is used to simulate the seismic additional hydrodynamic pressure, and the train-track-bridge coupling vibration model under the combined wave-earthquake action is established. On this basis, taking a sea-crossing cable-stayed bridge with a main span of 400 m as an example, according to the wave parameters and ground motion parameters at the bridge site, the vehicle-bridge coupling vibration of the cross-sea cable-stayed bridge under the combined wave-earthquake action is studied systematically. The research results show that for the high-speed railway cross-sea cable-stayed bridge, considering the earthquake additional hydrodynamic pressure will significantly increase the lateral dynamic response of the main girder of the cable-stayed bridge and the safety index of the train on the bridge, and when considering the combined wave-earthquake action, the lateral dynamic response of the bridge and the safety index of the train increase with the increase of the wave recurrence period. For the example in this paper, the safe speed threshold under single earthquake is 250km/h, but there is no safe speed in the calculation range under general wave-earthquake combined action and extreme wave-earthquake combined action. The research results of this paper can provide technical support for the design of high-speed railway cross-sea cable-stayed bridge.

Key words： Vehicle-bridge coupling vibration seismic action wave force hydrodynamic force running safety

收稿日期: 2022-09-22 出版日期: 2023-12-28

引用本文:

雷虎军1，林镇荣1，温家生2，邱官发2，陈希茂2. 波浪-地震联合作用下高速铁路跨海斜拉桥车桥耦合振动研究[J]. 振动与冲击, 2023, 42(24): 16-23.
LEI Hujun1，LIN Zhenrong1，WEN Jiasheng2，QIU Guanfa2，CHEN Ximao2. Vehicle-bridge coupling vibration of high-speed railway sea-crossing cable-stayed bridge under combined wave-earthquake action. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(24): 16-23.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I24/16

[1] 房忱, 李永乐, 向活跃. 波浪作用下跨海大桥列车走行性研究[J]. 西南交通大学学报, 2017, 52(6): 1068-1074.
Fang Chen, Li Yongle, Xiang Huoyue. Study of train running performance under wave load for cross-sea bridge [J]. Journal of Southwest Jiaotong University, 2017, 52(6): 1068-1074.
[2] 李永乐, 房忱, 向活跃. 风-浪联合作用下大跨度桥梁车_桥耦合振动分析[J]. 中国公路学报, 2018, 31(7): 119-125.
Li Yongle, Fang Chen, Xiang Huoyue. Coupled vibration analysis of vehicle-bridge for long-span bridge under wind and wave [J]. China Journal of Highway and Transport, 2018, 31(7): 119-125.
[3] 刘高, 陈上有, 王昆鹏, 等. 跨海公铁两用桥梁-车-桥-风浪流耦合振动研究[J]. 土木工程学报, 2019, 52(4): 72-87.
Liu Gao, Chen Shangyou, Wang Kunpeng, et al. Study on coupling vibration of vehicle-bridge-wind-wave- current system of rail-cum-road sea bridge [J]. China Civil Engineering Journal, 2019, 52(4): 72-87.
[4] 崔圣爱, 郭晨, 张猛, 等. 风-浪作用下跨海大桥列车-桥梁系统耦合振动仿真研究[J]. 铁道学报, 2021, 43(7): 138-143.
Cui Shengai, Guo Chen, ZHANG Meng, et al. Coupled vibration of train-bridge system of cross-sea bridge subject to wind and wave [J]. Journal of the China Railway Society, 2021, 43(7): 138-143.
[5] 柳春光, 张士博. 考虑地震、波浪和海流作用的跨海桥梁结构研究进展[J]. 大连理工大学学报, 2017, 57(1): 105-110.
Liu Chunguang, Zhang Shibo. Research progress of cross-sea bridge structures considering the effects of earthquakes, waves and ocean currents [J]. Journal of Dalian University of Technology, 2017, 57(1): 105-110.
[6] Morison J R, Johnson J W, Schaaf S A, et al. The force exerted by surface waves on piles [J]. Journal of Petroleum Technology, 1950, 2(5): 149-154.
[7] Bao W G, Fujihashi K, Kinoshita T. Interaction of a submerged elliptic plate with waves [J]. Journal of Hydrodynamics, 2010, 22(5): 77-82.
[8] Chakrabarti S K. Hydrodynamic coefficients for a vertical tube in an array [J]. Applied Ocean Research, 1981, 3(1): 3-12.
[9] 李玉成, 王凤龙, 王洪荣. 作用于并列双桩桩列上的波流力[J]. 海洋学报, 1992, 14(2): 106-121.
Li Yucheng, Wang Fenglong, Wang Hongrong. The wave and current force acting on a row of parallel double piles [J]. Oceanographic Journal, 1992, 14(2): 106-121.
[10] Yamada Y, Iemura Y, Kawano K, et al. Seismic response of offshore structures in random seas [J]. Earthquake Engineering and Structural Dynamics, 1989, 18(7): 965-981.
[11] 魏凯, 袁万城. 深水高桩承台基础地震动水效应数值解析混合算法[J]. 同济大学学报(自然科学版), 2013, 41(3): 336-341.
Wei Kai, Yuan Wancheng. Numerical Analytical Hybrid Algorithm for Earthquake-Water Effect of Deep Water High Pile Cap Foundation [J]. Journal of Tongji University (Natural Science Edition), 2013, 41(3): 336-341.
[12] 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 Hujun, Li Xiaozhen. 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.
[13] 雷虎军. 非一致地震激励下列车—轨道—桥梁耦合振动及行车安全性研究[D]. 西南交通大学, 2014.
Lei Hujun. Non-uniform seismic excitation of the following vehicle-track-bridge coupled vibration and driving safety research [D]. Southwest Jiaotong University, 2014.
[14] 港口与航道水文规范（JTS 145—2015）[S]. 中华人民共和国交通运输部, 2016.
Code of hydrology for harbor and waterway（JTS 145—2015）[S]. Ministry of Transport of the people's Republic of China, 2016.
[15] Maheri M R, Severn R T. Experimental added-mass in modal vibration of cylindrical structures [J]. Engineering Structures, 1992, 14(3): 163-175.
[16] Wang P G, Zhao M, Du X L, et al. Simplified evaluation of earthquake-induced hydrodynamic pressure on circular tapered cylinders surrounded by water [J]. Ocean Engineering, 2018, 164: 105-113.
[17] 赖伟. 地震和波浪作用下深水桥梁的动力响应研究[D]. 上海: 同济大学, 2004.
Lai Wei. Study on dynamic response of deep-water bridges under earthquake and waves[D]. Shanghai: Tongji University, 2004.
[18] 雷虎军, 刘伟, 孙昱坤. 考虑地震动水力的高速铁路跨海斜拉桥行车安全性研究[J]. 铁道学报, 2021, 43(12): 113-120.
Lei Hujun, Liu Wei, Sun Yukun. Running safety of sea-crossing cable-stayed of high-speed railway considering seismic hydrodynamic pressure [J]. Journal of the China Railway Society, 2021, 43(12): 113-120.
[19] Li X Z, Zhang Z J, Zhang X. Using elastic bridge bearings to reduce train-induced ground vibrations: An experimental and numerical study [J]. Soil Dynamics and Earthquake Engineering, 2016, 85, 78-90.