摘要
列车经过钢桁梁桥时引起的噪声辐射问题比混凝土桥更为突出,对沿线居民造成的影响更大。以某轨道交通钢桁梁桥为研究对象,基于统计能量法(SEA)建立钢桁梁桥结构噪声与轮轨噪声预测模型,分析包含一般减振整体道床、减振垫浮置板、橡胶弹簧浮置板和钢弹簧浮置板在内的4种不同轨道减振结构型式对钢桁梁桥人行系统及周边敏感场点的噪声影响及传播规律,并对人行系统及敏感点处的综合噪声进行预测。研究表明,减振垫浮置板道床在降低钢桁梁桥人行系统及敏感点处的综合噪声方面效果最优。研究结论为钢桁梁桥上的轨道减振结构设计选型提供依据,为解决今后类似工程的桥梁噪声问题提供一定借鉴。
The problem of noise radiation caused by a train passing through a steel bridge is more prominent than that caused in a concrete bridge and has a greater impact on residents along the line.A model for predicting the structural noise and wheel–rail noise in steel truss bridges was established based on statistical energy analysis(SEA).Further,this study analyed the noise impact and propagation law on the pedestrian system and surrounding sensitive field points of the steel truss bridge with four different types of track vibration reduction structures,including a general integrated track bed,damping pad floating slab track,rubber spring floating slab track,and steel spring floating slab track.A comprehensive noise in the pedestrian system and sensitive points was predicted.Research has shown that the damping pad floating slab track has the best effect in reducting the comprehensive noise of the pedestrain system and sensitive points of the steel turss bridge.The conclusions of this study provide a basis for the design and selection of track vibration reduction structures on steel truss bridges and a reference for solving bridge noise problems in similar projects in the future.
作者
房斌
张宏亮
段玉振
李小珍
张光明
梁林
FANG Bin;ZHANG Hongliang;DUAN Yuzhen;LI Xiaozhen;ZHANG Guangming;LIANG Lin(Qingdao Metro Group Co.,Ltd.,Qingdao,Shandong 266045;Beijing Urban Construction Design&Development Group Co.,Ltd.,Beijing 100037;Southwest Jiaotong University,Chengdu 610031)
出处
《都市快轨交通》
北大核心
2023年第5期80-85,共6页
Urban Rapid Rail Transit
基金
青岛地铁集团有限公司科研课题(M8-ZX-2021-036)
北京市科技计划项目(Z151100001315008,Z171100002117003)。
关键词
城市轨道交通
公铁两用
钢桁梁桥
统计能量法(SEA)
结构噪声
轮轨噪声
urban rail transit
road rail dual-use
steel truss bridge
Statistical Energy Analysis(SEA)
structural noise
wheel–rail noise
