分离式公铁双层桥面相互气动干扰及对列车走行性的影响

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (9) : 74-78.

论文

李永乐1 姜孝伟1 苏洋1 李龙安2 廖海黎1

作者信息 +

Aerodynamic Interaction between Road deck and Rail deck of Separate-type Highway-Railway Bridges and its Effect on the Running Performance of Train

LI Yong-le1，JIANG Xiao-wei1，SU Yang1，LI Long-an2，LIAO Hai-li1

Author information +

文章历史 +

摘要

横向风作用下公铁两用双层桥的上、下桥面间存在相互的气动干扰，为研究公铁两用组合桥间隔高度对列车走行性的影响，针对某分离式公铁两用混凝土箱梁桥，采用计算流体动力学（CFD）数值模拟和风—车—桥耦合振动研究的方法，分析了上、下桥面间隔高度对列车气动特性和车辆动力响应的影响。分析结果表明，公铁两用组合桥间隔高度对列车的气动特性和动力响应影响显著，间隔高度减小，列车升力系数和竖向加速度显著增大，轮重减载率也随之增大。公铁两用组合桥的设计应考虑间隔高度对列车的影响，以选择合理的间隔高度。

Abstract

There is aerodynamic interaction between the road deck and the rail deck of highway-railway bridges under cross wind. In order to investigate the effect of different height intervals between two decks on the running performance of the train，a separate-type highway-railway concrete box girder bridge is regarded as an engineering example. The numerical simulation by CFD and the coupling vibration analysis of wind-vehicle-bridge system are carried out to determine the aerodynamic characteristics of the train and to obtain the dynamic response. The results show that the height interval between two decks has a major influence on the aerodynamic characteristics and dynamic response of the train. Reducing the height interval will lead to the increasing of the lift coefficient and the vertical acceleration of the train，and the wheel load reduction ratio will be increased as well. The effect of height intervals between two decks should be paid more attention when select the optimal height interval in the design of highway-railway bridges.

导出引用

李永乐1 姜孝伟1 苏洋1 李龙安2 廖海黎1. 分离式公铁双层桥面相互气动干扰及对列车走行性的影响[J]. 振动与冲击, 2016, 35(9): 74-78

LI Yong-le1，JIANG Xiao-wei1，SU Yang1，LI Long-an2，LIAO Hai-li1. Aerodynamic Interaction between Road deck and Rail deck of Separate-type Highway-Railway Bridges and its Effect on the Running Performance of Train[J]. Journal of Vibration and Shock, 2016, 35(9): 74-78

参考文献

[1] Ostenfeld K H. Denmarks Great Belt Link[A]. The 1989 ASCE Annual Cicil Engineering Convention[C], New Or leans：[s.n.],1989.
[2] 杨明智，袁先旭，鲁寨军，等. 强侧风下青藏线列车气动性能风洞试验研究[J]. 实验流体力学. 2008(01): 76-79.
Yang Mingzhi，Yuan Xianxu，Lu Zhaijun，Huang Hanjie. Experimental study on aero- dynamic characteristics of train running on Qinghai-Tibet railway under cross winds[J].Journal of Experiments in Fluid Mechanic，2008(01): 76-79 (in Chinese)
[3] 中华人民共和国国家标准. GB 146.2—83标准轨距铁路建筑限界[S].1983
National Standard of the People’s Republic of China. GB 146.2-83 Structure gauge for standard gauge railways[S].1983(in Chinese)
[4] 徐鹤寿，郝有生. 高速铁路建筑限界的研究[J]. 中国铁道科学. 1998(04): 76-83.
Xu Heshou，Hao Yousheng.Study on the Structure Gauge for High-speed Railway[J]. CHINA RAILWAY SCIENCE 1998(04): 76-83. (in Chinese)
[5] 彭月燊. 高速铁路桥梁设计特点[J]. 桥梁建设. 1999(03): 27-31.
Peng Yueshen. Design charateristics of High Speed Railway Bridge[J]. Bridge Con- struction1999(03): 27-31. (in Chinese)
[6] 李永乐，安伟胜，蔡宪棠，等. 倒梯形板桁主梁CFD简化模型及气动特性研究[J]. 工程力学. 2011(S1): 103-109.
Li Yongle, An Weisheng, Cai Xiantang, ect. Simplified CFD modal and aerodynamic characteristics of inverted trapezoidal plate-truss deck [J]. ENGINEERING MECHANICS 2011(S1): 103-109.
[7] 李永乐，汪斌，黄林，等. 平板气动力的CFD模拟及参数研究[J]. 工程力学. 2009(03): 207-211.
Li Yongle, Wang Bin, Huang Lin, ect. CFD Simulation and parameter study on aerodynamic force of flat plate [J]. ENGINEERING MECHANICS. 2009(03): 207-211.
[8] 许伟. 大气边界层风洞中风场的数值模拟[D]. 哈尔滨工业大学, 2007.
Xu Wei. Numerical simulation of the airflow in atomospheric- boundary-layer wind tunnel [D]. Harbin Institute of Technology, 2007.
[9] D.C.Wilcox. Turbulence Modeling for CFD. DCW Industria,Inc.,La Canada, California,1998
[10] 白桦，李加武，胡兆同，等. 近流线型断面静力三分力系数的雷诺数效应识别[J]. 建筑科学与工程学报. 2007(04): 60-63.
BAI Hua, LI Jiawu, HU Zhaotong,et a. Identification of Reynolds Number Effect of Tri-component Force Coeffi -cient of Streamline -liked Section [J].Journal of Architecture and Civil Engineering. 2007(04): 60-63. (in Chinese)）
[11] 张彦.桥梁气动自激力的数值模拟研究. [D].成都：西南交通大学，2009.
Zhang Yan. A Numerical Study on Self-excited Aero- dynamic Forces of Bridge Deck [D] Cheng Du: Southwest Jiaotong University, 2009.
[12] 李永乐,廖海黎,强士中. 车桥系统气动特性的节段模型风洞试验研究[J]. 铁道学报. 2004(03): 71-75.
Li Yongle, Liao Haili, Qiang Shizhong. Study on Aerodynamic Characteristics of the Vehicle- bridge System by the Section Model Wind Tunnel Test[J]. Journal of the China Railway Society. 2004(03): 71-75. (in Chinese).
[13] 汪斌，李永乐，郝超，等. 大跨度连续刚构桥钝化主梁气动特性数值分析[J]. 四川建筑科学研究. 2008(05): 29-33.
WANG Bin, LI Yongle, HAO Chao, et al. Numerical simulation of aerodynamic characteristics of the blunt deck of long span continuous rigid frame bridges [J]. Sichuan Building Science Research, 2008(05): 29-33 (in Chinese)）
[14] Xia C Y, Lei J Q, Zhang N, et al. Dynamic analysis of a coupled high-speed train and bridge system subjected to collision load[J]. Journal of Sound and Vibration. 2012, 331(10): 2334-2347.
[15] Fujii T., Maeda T., Lshida H., Tanemoto K., Suzuki M. Wind -induced accidents of train/vehicles and their measure in Japan, QR of RTRI,1(1999)50-55.
[16] LI Yongle, QIANG Shizhong , LIAO Haili, et al. Dynamics of wind-Rail Vehicle-Bridge System[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2005, 93:483-507.
[17] LI Yongle, Liao Haili, Qiang Shizhong. Simplifying the simulation of stochastic wind velocity fields for long cable-stayed bridges[J]. Computers & structures. 2004, 82(20): 1591-1598.
[18] 中华人民共和国推荐性行业标准. JTG/T D60-01—2004公路桥梁抗风设计规范[S].北京：人民交通出版社，2004.
Recommended professional Standard of the People’s Republic of China. JTG/T D60-01—2004 Wind-resistant Design Specification for Highway Bridges[S]. Beijing: China Communications Press, 2004. (in Chinese)