温度效应对铁路钢桥行车性能影响研究

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 94-100.

论文

温度效应对铁路钢桥行车性能影响研究

田园，张楠，孙奇，杜宪亭，夏禾

作者信息 +

Influence of temperature effect on running performance of steel railway bridge

TIAN Yuan, ZHANG Nan, SUN Qi, DU Xian-ting, XIA He

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文章历史 +

摘要

日照作用所引起的温度效应使得铁路桥梁产生明显变形，进而影响行车安全性。为研究此问题，首先借助于ANSYS有限元软件的热-应力耦合技术进行桥梁温度场和位移场分析，以获得日照作用下的轨道变形。其中，桥梁热分析边界条件由热辐射、热对流、热传导等太阳物理学综合因素及相关经验公式确定；采用构件截面切分简化分析模型。然后，建立车桥耦合振动分析模型，将温度效应引起的梁体变形和轨道不平顺叠加效应作为系统激励，采用全过程迭代法求解系统响应。最后，以某铁路简支钢板梁桥为例进行车-桥动力计算，结果表明：日照作用下列车通过桥梁时，桥梁的加速度没有明显差异，但横向和竖向位移均有所增加，同时桥上行车安全性和舒适性均有所降低。

Abstract

The temperature effect induced by sunshine causes obvious deformation of railway bridges, which affects the running safety of trains. In order to calculate the rail deformation, the temperature field and displacement field are analyzed through the heat-stress coupled technology of finite element software ANSYS, in which the boundary conditions of bridge in thermal analysis are determined based on the thermal radiation, the heat convection and the heat conduction in solar physics comprehensive factors and related empirical formulas. Component section segmentation is proposed in the model simplification. The train-bridge interaction system model is established. Taking the bridge thermal deformation and track irregularity as external excitations, the inter-system iteration method is used to solve the interacted system. As a case study, a typical simply-supported steel plate girder bridge is concerned by the vehicle-bridge interaction analysis. The results show that temperature effect has little influence on bridge accelerations when a train is passing through. However, the safety and comfort status are changed worse due to the increase of bridge horizontal and vertical deformation.

导出引用

田园，张楠，孙奇，杜宪亭，夏禾. 温度效应对铁路钢桥行车性能影响研究[J]. 振动与冲击, 2015, 34(12): 94-100

TIAN Yuan, ZHANG Nan, SUN Qi, DU Xian-ting, XIA He. Influence of temperature effect on running performance of steel railway bridge[J]. Journal of Vibration and Shock, 2015, 34(12): 94-100

参考文献

[1] 陈波，郑瑾，王建平.桥梁结构温度效应研究进展[J]. 武汉理工大学学报，2010，32(24): 79-83.
Chen Bo，Zheng Jin，Wang Jian-ping. State-of-the-art of the temperature effects of bridge [J]. Journal of Wuhan University of Technology，2010，32(24): 79-83. (in Chinses)
[2] Zuk W. Thermal behavior of composite bridges-insulated and uninsulated [J]. Highway Research Record，1965(76): 231-253.
[3] Kehlbeck F. Einfluss der Sonnenstrahlung bei Bruckenbauw erken [M]. Dusseldorf: Werner-Verlag，1975.
[4] American Association of State Highway and Transportation Officials (AASHTO). LRFD Bridge design specifications [S]. Washington，D. C.，2012.
[5] Tong M，Tham L G，Au F T K，et al. Numerical modeling for temperature distribution in steel bridges [J]. Computers and Structures，2001，79(6): 385-397.
[6] 刘兴法. 混凝土结构的温度应力分析[M]. 北京: 人民交通出版社，1991.
Liu Xing-fa. Analysis of temperature stress of concrete structure [M]. Beijing: China Communications Press，1991.
[7] 孙国晨，关荣财，姜英民等. 钢-混凝土叠合梁横截面日照温度分布研究[J]. 工程力学，2006，23(11): 122-127.
Sun Guo-chen，Guan Rong-cai，Jiang Ying-min，et al. Sunshine-induced temperature distribution on cross section of steel-concrete composite beams [J]. Engineering Mechanics， 2006，23(11): 122-127. (in Chinese)
[8] 任志刚，胡曙光，丁庆军. 太阳辐射模型对钢管混凝土墩柱温度场的影响研究[J]. 工程力学，2010，27(4): 246-250.
Ren Zhi-gang， Hu Shu-guang， Ding Qing-jun. Research on the effect of solar radiation model on temperature field of concrete-filled steel tube pier [J]. Engineering Mechanics， 2010，27(4): 246-250. (in Chinese)
[9] 谢肖礼，赵国藩，胡安妮等. 钢管混凝土拱桥施工过程中考虑温度效应的预抬高量二阶分析[J]. 工程力学，2005， 22(4): 62-66.
Xie Xiao-li，Zhao Guo-fan，Hu An-ni，et al. The second-order analysis of preraised height of concrete-filled steel tube arch bridge during construction considering temperature effect [J]. Engineering Mechanics，2005，22(4): 62-66. (in Chinese)
[10] Wang M L. Load and environmental effects of a damaged PC box girder bridge [C]. The 4th International Workshop on Advanced Smart Materials and Smart Structures Technologies. Tokyo: [s.n.]，2008.
[11] Liu C Y，DeWolf J T. Effect of temperature on modal variability of a curved concrete bridge under ambient loads [J]. Journal Structural Engineering ASCE，2007，133(12): 1742-1751.
[12] Xia y，Hao H，Zanardo G，et al. Long term vibration monitoring of a RC slab: temperature and humidity effect [J]. Engineering Structures，2006，28(3): 441- 452.
[13] Chen B，Xia y. Thermal effects of Tsing Ma suspension bridge [R]. Hong Kong: The Hong Kong Polytechnic University，2009.
[14] 彭友松. 混凝土桥梁结构日照温度效应理论及应用研究 [D]. 成都:西南交通大学桥梁与隧道工程， 2007.
Peng You-song. Studies on theory of solar radiation thermal effects on concrete bridges with applications [D]. Chengdu: Southwest Jiaotong University，Bridge and tunne1 engineering，2007. (in Chinese)
[15] 杨世铭，陶文铨. 传热学[M]. 第4版. 北京: 高等教育出版社，2006.
Yang Shi-ming，Tao Wen-quan. Heat transfer [M]. 4th ed. Beijing: Higher Education Press，2006. (in Chinese)
[16] 翟婉明，夏禾. 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，Xia He. Train-track-bridge dynamic interaction: theory and engineering application [M]. Beijing: Science Press，2011. (in Chinese)
[17] 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: 北京交通大学桥梁工程， 2012.
Xiao 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， Bridge and tunnel engineering，2012. (in Chinese)
[18] 夏禾，张楠. 车辆与结构动力相互作用[M]. 第2版. 北京: 科学出版社，2005.
Xia He，Zhang Nan. Dynamic interaction of vehicles and structures [M]. 2nd ed. Beijing: Science Press，2005. (in Chinese)