城市轨道交通高架线U型梁降噪理论与测试  

Theoretical Study and Test on Noise Reduction Effect of the U-shaped Beams on Urban Rail Transit Elevated Lines

作　　者：王奕然[1] 

机构地区：[1]北京城建设计研究总院有限责任公司,北京100037

出　　处：《都市快轨交通》2013年第3期41-44,共4页Urban Rapid Rail Transit

基　　金：北京市科技计划项目(D101100049610001)

摘　　要：通过对比传统箱型梁与U型梁的特点,分析传统箱型梁噪声治理存在的问题,提出U型梁降噪的基本原理及具体措施。同时,采用不同的方法对U型梁的降噪效果进行计算分析与模拟预测,并通过工程噪声测试进行验证。在城市轨道交通建设中,推广应用建设与运营成本低、安全风险小、环保的高架线路及高架技术成为一个重要的研究方向。By comparing the characteristics of traditional box beams with U- shaped beams, analysis was carried out for noise control problems of the traditional box beams, and basic principles and specific measures of noise control for U- shaped beams were put forward. Different methods were adopted to calculate, analyse and simulate the noise reduction effect of U - shaped beams, which was verified by noise tests in construction. In order to promote the urban rail transit elevated lines which have low construction and operation costs and safety risks, the research on the environment-friendly technology of elevated lines becomes very important.

关 键 词：城市轨道交通 U型梁 降噪 噪声测试 环保 

分 类 号：U448.29[建筑科学—桥梁与隧道工程]