城市轨道交通公轨合建钢箱梁桥辐射噪声的影响规律研究  

Research on the Impact law of Radiation Noise on Rail-Cum-Road Steel Box Girder Bridges in Urban Rail Transit

作　　者：段玉振 张宏亮 张光明 李小珍[2] 段海滨 梁林 DUAN Yuzhen;ZHANG Hongliang;ZHANG Guangming;LI Xiaozhen;DUAN Haibin;LIANG Lin(Beijing Urban Construction Design and Development Group Co.,Ltd.,Beijing 100037,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]北京城建设计发展集团股份有限公司,北京100037 [2]西南交通大学土木工程学院,成都610031

出　　处：《铁道标准设计》2024年第5期82-88,共7页Railway Standard Design

基　　金：杭州市建设科研项目(2020033)。

摘　　要：列车经过钢箱梁桥时引起噪声辐射问题相比混凝土桥更为突出,对沿线居民造成的影响更大,严重影响沿线居民的日常生活。基于车辆-轨道-桥梁耦合振动理论,并结合统计能量法(SEA)建立钢箱梁结构噪声与轮轨噪声预测模型,分析钢箱梁桥的结构噪声与轮轨噪声衰减规律,明确典型及敏感场点处的噪声分布情况;定量预测分析不同轨道减振措施对钢箱梁桥周边敏感场点的噪声辐射大小。分析结果表明:钢箱梁轮轨噪声与结构噪声随水平距离的衰减规律基本一致,衰减率均为随着距离变远而变小,150 m内总衰减率轮轨噪声大于结构噪声;普通轨道结构及普通轨道结构+全封闭声屏障工况下,敏感位置处综合噪声不满足噪声增量在1 dB(A)以内的环评要求,减振垫浮置板与全封闭声屏障组合及钢弹簧浮置板与全封闭声屏障组合工况下,敏感位置综合噪声均能满足噪声增量在1 dB(A)以内的环评要求。The noise radiation problem caused by the train passing through the steel box girder bridge is more prominent than that caused by the concrete bridge,which has a greater impact on the residents along the line,and seriously affected the daily life of the residents along the line.Based on the vehicle-track-bridge coupling vibration theory,combined with statistical energy analysis(SEA),a prediction model of steel box girder structure noise and wheel rail noise is established.The attenuation law of steel box girder bridge structure noise and wheel rail noise is analyzed,and the noise distribution at typical and sensitive sites is clarified.The noise radiation of sensitive sites around the steel box girder bridge caused by different track vibration reduction measures is quantitatively predicted and analyzed.Under the working conditions of ordinary track structure and ordinary track structure plus fully enclosed sound barrier,the comprehensive noise at the sensitive position does not meet the EIA requirements of noise increment within 1 dB(A).Under the working conditions of the combination of damping pad floating plate and fully enclosed sound barrier,and the combination of steel spring floating plate and fully enclosed sound barrier,the comprehensive noise at sensitive locations can meet the environmental assessment requirements of noise increment within 1 dB(A).

关 键 词：城市轨道交通 公轨合建桥 钢箱梁桥 结构噪声 轮轨噪声 衰减规律 降噪方案 

分 类 号：U231[交通运输工程—道路与铁道工程] X839.1[环境科学与工程—环境工程]