浮置板轨道对轨道交通箱形梁的减振效果分析

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英文篇名：Analysis of Vibration Reduction Effect of Floating Slab Track on Rail Transit Box Girder 作者：黄俊飞 ; 左志远 英文作者：HUANG Junfei;ZUO Zhiyuan;GERB (Qingdao) Vibration Control Co., Ltd.;Enginevring Research Center of Railcuay Environment Vibration and Noise, Minsity of Eductation,East China Jiaotong University; 关键词：轨道交通 ; 箱形梁 ; 浮置板轨道 ; 联合仿真 ; 减振效果 英文关键词：rail transit;;box girder;;floating plate track;;joint simulation;;vibration reduction effect 中文刊名：SKQB 英文刊名：Transportation Science & Technology 机构：隔而固(青岛)振动控制有限公司;华东交通大学铁路环境振动与噪声教育部工程研究中心; 出版日期：2019-08-07 出版单位：交通科技 年：2019 期：No.295 基金：国家自然科学基金(51578238);; 江西省科技厅重点研发计划(20181BBE50016)资助 语种：中文; 页：SKQB201904017 页数：4 CN：04 ISSN：42-1611/U 分类号：65-68

摘要

为研究浮置板轨道对轨道交通桥梁的减振效果,以32 m的轨道交通双线箱形梁为研究对象,基于联合仿真方法建立了车辆-轨道-桥梁耦合振动分析模型,计算列车荷载作用下轨道交通箱形梁的振动响应,分析了浮置板轨道对箱型梁的减振效果。结果表明,箱形梁桥上采用浮置板轨道会急剧增大钢轨和浮置板自身的振动响应;采用浮置板轨道可以降低桥梁中、高频的振动,但是会放大桥梁低频的振动响应;如需采用浮置板轨道以减少轨道交通辐射的噪声,还应考虑设置浮置板轨道后钢轨辐射噪声的增加。
        In order to study the effect of floating slab track on the vibration reduction of rail transit bridges, a vehicle-track-bridge coupling vibration analysis model is established based on the joint simulation method, and the vibration response of rail transit bridges under train load is calculated. The vibration reduction effect of floating slab track on box girder is analyzed. The results show that the floating slab track can reduce the vibration of box girder bridges. The use of floating slab track will increase the vibration response of rail and floating slab dramatically; the use of floating slab track can reduce the high-frequency and middle-frenquency vibration of the bridge, but will amplify the low-frequency vibration response of the bridge; if floating slab track is used to reduce the noise generated by rail transit, the increase of rail radiated noise after the use of floating slab track should also be considered.

引文

[1] 刘维宁,马蒙,刘卫丰,等.我国城市轨道交通环境振动影响的研究现状[J].中国科学(科学技术),2016,46(6):547-559.
    [2] 刘学文,吴川,谢军,等.长型浮置板轨道隔振系统理论分析:弥散曲线及临界速度[J].计算力学学报,2009,26(6):919-923.
    [3] 袁俊,胡卫兵,孟昭博,等.浮置板轨道结构类型比较及其隔振性能分析[J].测试与诊断,2011,31(2):223-228.
    [4] 李增光,吴天行.浮置板轨道二维建模及隔振性能分析[J].铁道学报,2011,33(8):93-98.
    [5] 姚京川,杨宜谦,王澜.浮置板式轨道结构隔振效果分析[J].振动与冲击,2005,24(6):108-110.
    [6] HUI C K,NG C F.The effects of floating slab bending resonances on the vibration isolation of rail viaduct[J].Applied Acoustics,2009,70(6):830-844.