Abstract：Effects of quasi-static bridge deformation on track irregularities during high speed train operation and the caused running safety problem were studied here. Firstly, the vehicle-bridge coupled system’s dynamic interaction model was established and used to study effects of quasi-static bridge deformation on track irregularities. Then track irregularities were taken as the external excitation to analyze effects of quasi-static deformation of a simple-supported high speed railway box girder bridge under the action of multi-factor on dynamic responses of the vehicle-bridge system. The analysis results showed that effects of the bridge beam’s quasi-static deformation on the bridge’s dynamic response is very small; the beam’s upward slowly bending affects vehicle vertical dynamic response obviously, and the beam’s temperature induced lateral bending and pier-top lateral displacement affect vehicle lateral dynamic response obviously; when amplitudes of the beam’s upward slowly bending and temperature induced lateral bending reach 20 mm and the amplitude of pier-top lateral displacement reaches 50 mm, dynamic parameters of the bridge and the vehicle are all in the train running safe
[1] 国家铁路局. 高速铁路设计规范TB10621-2014 J942-2014 [S]. 北京:中国铁道出版社,2015.
（National Railway Administration. Code for Design of High Speed Railway TB10621-2014 J942-2014 [S].Beijing: China Railway Publishing House,2015.in Chinese）
[2] 铁道科学研究院. 客运专线无砟轨道铁路设计指南 铁建设函[2005]745号 [S]. 北京:中国铁道出版社,2005.
(Academy of Railway Sciences.Ballastless track of Passenger Dedicated Line Railway Design Guide Iron construction letter[2005]745 [S]. Beijing: China Railway Publishing House,2015.in Chinese）
[3] 许锡昌,周伟,陈善雄. 武广铁路客运专线32m单跨简支梁的徐变上拱特征分析[J]. 铁道标准设计,2012, 2: 78-80.
(XU XiChang,ZHOU Wei,CHEN ShangXiong. Analysis on the creep characteristics of 32m single span simply supported beam of Wuhan Guangzhou Railway Passenger Dedicated Line [J]. Railway Standard Design, ,2012, 2: 78-80.in Chinese)
[4] 黎国清,刘秀波等. 高速铁路简支梁徐变上拱引起的高低不平顺变化规律及其对行车动力性能的影响[J]. 中国科学:科学技术,2014, 44(7): 786-792.
(LI GuoQing.LIU XiuBo, etc.Variation law and impact on dynamic performance of profile irregularity caused by creep of simply-supported beam on high-speed railway[J]. Scientia Sinica (Technologica), 2014, 44(7): 786-792.in Chinese)
[5] 孙奇. 温度效应对高速铁路简支梁走行安全性影响研究[D]. 北京:北京交通大学硕士学位论文, 2013.
(SUN Qi.The temperature effect analysis on highy-speed railway simple supported beams running safety [D]. Beijing:Master's degree thesis of Beijing Jiaotong University, 2013.in Chinese)
[6] 田园,张楠,孙奇,夏禾等. 温度效应对铁路钢桥行车性能影响研究[J]. 振动与冲击,2014, 34(12): 94-100.
(TIAN Yuan, ZHANG Nan, etc . Temperature effect on running performance of steel railway bridge[J]. Journal of Vibration and Shock,2014, 34(12): 94-100. in Chinese)
[7] Zuk W. Thermal behavior of composite bridge-insulated and uninsulated [J]. Highway Research Record,1965, 76: 231-253.
[8] Kehlbeck F. Einfluss der Sonnenstrahlung bei bruckenbauw erken [M]. Ddusseldorf : Werner-Verlag ,1975.
[9] 宋国华. 桥梁墩台不均匀沉降情况下的车-线-桥垂向系统耦合振东分析[D]. 北京:铁道科学研究院硕士学位论文, 2007.
(SONG GuoHua. Vehicle-track-bridge system coupled vibration analysis in the case of uneven settlement of pier and abutment [D]. Beijing: Master's degree thesis of Academy of Railway Sciences, 2007. in Chinese)
[10] 王昆鹏,夏禾等.桥墩不均匀沉降对高速列车运行安全影响研究[J]. 振动与冲击,2014, 33(6): 137-142.
(WANG KunPeng,XIA He, etc. Influence of uneven settlement of bridge piers on running safety of high-speed trains [J]. Journal of Vibration and Shock,2014, 33(6): 137-142.in Chinese)
[11] 邹振华.不均匀沉降对对大跨连续梁及轨道结构影响分析[J]. 铁道工程学报,2014, 3: 61-65.
(ZOU ZhenHua. Effects analysis of differential settlement on long-span continuous bridge and ballastless track structure[J]. Journal of Railway Engineering Society,2014,3:61-65.in Chinese)
[12] 夏禾,张楠,郭薇薇.车桥耦合振动工程[M].北京:科学出版社,2014.
(XIA He, ZHANG Nan, GUO WeiWei. Coupling vibrations of train-bridge system [M]. Beijing: Science Press,2014.in Chinese)
[13] 翟婉明.车辆-轨道耦合动力学(第四版)[M].北京:科学出版社,2015.
(ZHAI WanMing. Vehicle track coupling dynamics (Fourth Edition) [M]. Beijing: Science Press,2015.in Chinese)
[14] 张楠,夏禾等. 基于全过程迭代的车桥耦合动力系统分析方法 [J]. 中国铁道科学,2013, 34(5): 32-38.
(ZHANG Nan,XIA He, etc. A vehicle-bridge interaction dynamic system analysis method based on inter-system iteration[J]. China Railway Science,2013, 34(5): 32-38.in Chinese)
[15] 周爽. 徐变上拱和温度旁弯对高速铁路桥梁动力性能的影响研究[D]. 北京:北京交通大学硕士学位论文, 2014.
(ZHOU Shuang. Study on effect of creep camber and thermal side bending on dynamic behavior of high-speed railway bridge[D]. Beijing:Master's degree thesis of Beijing Jiaotong University , 2014.in Chinese)
[16] R.克拉夫,J.彭津著,王光远等译校. 结构动力学第二版（修订版）[M]. 高等教育出版社, 2006.
(Ray Clough, Joseph Penzien, Wang Guangyuan and other translators. DYNAMICS OF STRUCTURES-Second Edition (revised edition) [M]. Higher Education Press , 2006.in Chinese)
