城市高架桥半封闭式声屏障的车致振动试验研究

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摘要为研究地铁列车低速通过时高架桥上半封闭式声屏障的振动响应及传播规律，对某城市轨道交通高架桥上的半封闭式声屏障进行了试验研究。基于实测数据，分析了高架桥和声屏障的动力特性、地铁列车过桥时的激励特性以及半封闭式声屏障的振动响应特征，并讨论了列车速度对高架桥上半封闭式声屏障车致振动的影响。结果表明：地铁列车低速过桥时具有“移动轴重激励”的荷载特性；声屏障的振动相对于桥面轨道板有显著的放大效应，其立柱顶端的各向加速度响应相当，但纵向振动稍大，其亚克力板的横向振动相对于其立柱的也明显增大；此外，地铁列车在正常运营情况下，不同车速对高架桥和声屏障的振动加速度级影响一般在5dB以内，且主要表现为列车轴距加载频率处振动分量幅值的变化。

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	谢伟平1
	余华彬1
	孙亮明1
	胡喆2
	赵寒冰 1

关键词 ：高架桥, 半封闭式声屏障, 车致振动, 现场测试

Abstract：In order to investigate the vibration responses and its propagation law of a semi-closed noise barrier on the urban viaduct when a subway train is slowly passing through, field measurements are performed for the semi-closed noise barrier on the viaduct of a certain urban rail transit.Based on the measured data, the dynamic characteristic and vibration response of the semi-closed noise barrier on the viaduct as well as the excitation characteristic of subway train were analyzed.Finally, the influence of train speed for the train-induced vibrations was also been discussed.The results show that the amplitudes of predominant components of train loads excited by slowly passing train fluctuate in accordance with the moving of train bogies.The vertical, lateral, and longitudinal acceleration responses on the top of H-shaped steel column approach to each other while the longitudinal one is slightly greater, but they are all more prominent than the responses of track slab.It is shown that the vibration response of acrylic board is usually severer than that of H-shaped steel column especially in the lateral direction.In addition, the vibration acceleration level differences of the structure between different train speeds are generally lower than 5 dB when the subway train is travelling at the operation speed.And the speed of train mainly affects the amplitude of vibration component excited by the periodic loading of wheelsets in the frequency domain.

Key words： viaduct semi-closed noise barrier train-induced vibration field measurement

收稿日期: 2018-02-01 出版日期: 2019-08-15

引用本文:

谢伟平1，余华彬1，孙亮明1，胡喆2，赵寒冰 1 . 城市高架桥半封闭式声屏障的车致振动试验研究[J]. 振动与冲击, 2019, 38(16): 14-21.
XIE Weiping1,YU Huabin1,SUN Liangming1,HU Zhe2，ZHAO Hanbing1. Experimental investigation on train-induced vibrations of a semi-closed noise barrier on the urban viaduct. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(16): 14-21.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I16/14

[1] 龚农斌, 汤峰, 王吉荣,等. 轻轨交通噪声的测量与分析[J]. 中国环境科学, 2002, 22(2): 170-173.
GONG Nong-bin, TANG Feng, WANG Ji-rong, et al. Measurement and analysis of light rail transportation noise[J]. China Environmental Science. 2002, 22(2): 170-173.
[2] 焦长洲, 高波, 王广地. 声屏障结构的列车脉动风致振动分析[J]. 西南交通大学学报, 2007, 42(5): 531-536.
JIAO Changzhou, GAO Bo, WANG Guangdi. Vibration Analysis of Noise Barrier Structures Subjected to Train—Induced Impulsive Wind Pressure[J]. Journal of Southwest Jiaotong University, 2007, 42(5): 531-536.
[3] 吕坚品, 张继文, 廖建州,等. 既有铁路桥梁声屏障的高速列车脉动风致响应[J]. 西南交通大学学报, 2009, 44(4): 547-551.
LÜ Jianpin, ZHANG Jiwen, LIAO Jianzhou, et al. Response of Noise Barrier for Existing Railway Bridges under Impulsive Pressure Induced by High-Speed Train[J]. Journal of Southwest Jiaotong University, 2009, 44(4): 547-551.
[4] 王宏朝, 谢金法. 高速铁路声屏障在列车风致脉动力与自然风荷载下的数值模拟[J]. 路基工程, 2013, (4): 34-38.
WANG Hongchao, XIE Jinfa. Numerical Simulation on Noise Barrier of High-speed Railway under Action of Wind-induced Fluctuating Pressure of Train and Natural Wind Load[J]. Subgrade Engineering, 2013, (4): 34-38.
[5] 康健. 高速列车脉动压力作用下声屏障的强度与疲劳性能分析[D]. 西南交通大学, 2015.
KANG Jian. The Strength and Fatigue Properties Analysis on Noise Barrier under the Aerodynamic Pressure of High Speed Train[D]. Chengdu: Southwest Jiaotong University, 2015.
[6] 柳润东, 毛军, 郗艳红. 高速铁路风障在横风与列车风耦合作用下的气动特性研究[J]. 振动与冲击, 2018, 37(3): 153-159.
LIU Rundong, MAO Jun, XI Yanhong. Aerodynamic load features of windbreaks of high speed railway under coupled action of cross wind and high speed train wind[J]. Journal of Vibration and Shock, 2018, 37(3): 153-159.
[7] Charuvisit S, Kimura K, Fujino Y. Effects of wind barrier on a vehicle passing in the wake of a bridge tower in cross wind and its response[J]. Journal of Wind Engineering & Industrial Aerodynamics, 2004, 92(7–8): 609-639.
[8] Tokunaga M, Sogabe M, Santo T, et al. Dynamic response evaluation of tall noise barrier on high speed railway structures[J]. Journal of Sound & Vibration, 2016, 366:293-308.
[9] 蔡理平, 李小珍, 陈锡民,等. 轮轨动荷载作用下全封闭声屏障的振动分析[J]. 中国铁路, 2017, (04): 9-67.
CAI Liping, LI Xiaozhen, CHEN Ximin, et al. On Vibration of Fully-Enclosed Noise Barriers Under Wheel-Rail Dynamic Load[J]. China Railway, 2017, (04): 9-67.
[10] 王少林. 考虑列车轨道桥梁/声屏障相互作用的高速铁路半封闭式声屏障动力响应分析[J]. 铁道标准设计, 2017, 61(1): 149-153.
WANG Shao-lin. Dynamic Responses of Semi-closed Noise Barriers for High-speed Railway Based on Train-track-bridge Interactions[J]. Railway Standard Design, 2017, 61(1): 149-153.
[11] 雷彬. 沪杭高铁半封闭式声屏障声学设计研究[J]. 铁道建筑技术, 2013, (11): 72-77.
LEI Bin. Design and Research on Acoustics of Semi-sealed Barrier for Shanghai -Hangzhou High-speed Railway[J]. Railway Construction Technology, 2013, (11): 72-77.
[12] 栗健. 城际铁路单侧高层建筑物声屏障形式设计研究[J]. 铁道标准设计, 2014, 58(7): 153-157.
LI Jian. Design Study on the Type of Sound Barrier for Protecting High-rise Buildings along Single Side of Intercity Railway[J]. Railway Standard Design, 2014, 58(7): 153-157.
[13] TB/T 3122-2010. 铁路声屏障声学构件技术要求及测试方法[S]. 北京: 中华人民共和国铁道部, 2011.
TB/T 3122-2010. Technique Requirements and Measurement of Acoustic Elements of Railway Sound Barrier[S]. Beijing: Ministry of Railways of the People’s Republic of China, 2011.
[14] 韩鹏, 张卫华. 轮对结构弯曲及型面磨耗对高速列车振动性能的影响[J]. 振动与冲击, 2015, 34(5):207-212.
HAN Peng, ZHANG Wei-hua. Influences of structural bending deformation and profile wear wheelsets on vibration performance of high-speed trains[J]. Journal of Vibration and Shock, 2015, 34(5):207-212.