对车辆段内咽喉区、试车线和运用库的地铁列车荷载进行了实测,获得了其时频特性。基于不同线路条件、行车速度下的实测结果,分析了地铁列车荷载特性的主要影响因素。研究结果表明:地铁列车通过时,咽喉区轨枕的铅垂向加速度幅值为10~15m/s2,荷载以高频成分为主,主频段为60~150Hz;试车线轨枕的铅垂向加速度幅值为5~6m/s2,荷载主频段为60~100Hz;运用库的振动量值较小,实测的铅垂向加速度幅值为1~2 cm/s2,荷载的主频段为30~50Hz。对地铁车辆段列车,与行车速度相比,列车荷载振动量值对线路的平顺度更为敏感。
Abstract
In this paper, the subway train loadings of different line areas including throat zone, test lines and operation zone, were measured and the time and frequency characteristics were obtained. Based on the observations under different line conditions and traveling speeds, the main factor that would affect the load was analyzed. It is shown that, when a train passing by, the amplitude of the vertical acceleration of the sleeper in throat zone reaches 10~15m/s2, with its predominate frequency ranges between 60~150Hz, while the acceleration response in test lines is 5~6m/s2, with its predominate frequency ranges between 60~100Hz, and value is relatively small in the operation zone, with its amplitude varies between 1~2 cm/s2 and its predominate frequency 30~50Hz. Furthermore, for car depot, compared to traveling speed, the vibration magnitude of the train loading is more sensitive to the line conditions and roughness.
关键词
车辆段 /
地铁列车荷载 /
实测 /
时频特性 /
咽喉区
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Key words
car depot /
subway train loading /
field measurement /
time-frequency characteristics /
throat zone
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参考文献
[1] 王毅,徐辉.地铁车辆段平台居住小区振动与噪声污染控制[J].中国环境监测, 1999, 15(6): 43-45.
Wang Yi, et al. A brief talk on the pollution controlling of vibration and noise of the community built on the platform of subway traffic[J]. Environmental Monitoring in China, 1999, 15(6): 43-45 (in Chinese)
[2] 闫维明,张向东,任珉,聂晗.地铁平台上建筑物竖向振动测试与分析[J]. 北京工业大学学报, 2008, 34(8): 836-841.
Yan Weiming, Zhang Xiangdong, Ren Min, Nie Han. Vertical vibration measurement and analysis of buildings on metro train platforms[J].Journal of Beijing University of Technology,2008,34(8): 836-841 (in Chinese)
[3] 谢伟平, 赵娜, 何卫, 彭颖. 地铁上盖物业振动舒适度分析[J]. 土木工程学报, 2013, 46(06): 90-96.
Xie Wei-ping, Zhao Na, He Wei, et al. Analysis on vibration serviceability of over-track buildings [J]. Chinese Civil Engineering Journal, 2013, 46(06): 90-96. (in Chinese)
[4] 周莉. 轨道交通上盖建筑的振动环境影响以及应对措施研究[C]. 中国环境科学学会学术年会论文集, 2013, 6488-6494.
[5] Barke DW, Chiu WK. A review of the effects of out-of-round wheels on track and vehicle components. Proc Inst Mech Eng Part F: J Rail Rapid Transit, 2005, 219(3):151–75.
[6] Remennikov AM, Kaewunruen S. Progress in structural engineering and materials: structural safety and reliability a review of loading conditions for railway track structures due to train and track vertical interaction[J]. Struct Control Heal Monit, 2008, 207–34.
[7] Connolly DP et al. Benchmarking railway vibrations-Track, vehicle, ground and building effects[J]. Construction and Building Materials, 2014, http://dx.doi.org/10.1016/j.conbuildmat.2014.07.042.
[8] 国家环境保护局. GB10070-88城市区域环境振动标准[S]. 北京: 中国标准出版社, 1988.
Ministry of Environmental Protection of the People’s Republic of China. GB10070-88 Standard of vibration in urban area environment[S]. Beijing: Standard Press of China, 1988.
[9] 环境保护部. HJ 453-2008环境影响评价技术导则—城市轨道交通[S]. 北京: 中国环境科学出版社, 2008.
Ministry of Environmental Protection of the People’s Republic of China. HJ 453-2008 Technical Guidelines for environment impact-Assessment of urban railway transit[S]. Beijing: Chinese Environmental Science Press, 2008.
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