噪声与振动控制

噪声与振动控制 ›› 2019, Vol. 39 ›› Issue (2): 140-144.DOI: 10.3969/j.issn.1006-1355.2019.02.027

• 建筑振动与建筑声学 • 上一篇    下一篇

控制城市轨道高架桥梁结构噪声的试验研究

刘兴龙1，尹学军1， 2，孔祥斐1，谭文3，刘铁民3   

  1. （ 1. 隔而固（青岛）振动控制有限公司，山东  青岛  266108；
    2. 青岛科而泰环境控制技术有限公司，山东  青岛  266101；
    3. 广州地铁集团公司，广州  510335 ）
  • 收稿日期:2018-05-21 修回日期:2018-07-19 出版日期:2019-04-18 发布日期:2019-04-18
  • 通讯作者: 刘兴龙

Experimental Study on Structure-borne Noise Control for  Urban Metro Viaducts

  • Received:2018-05-21 Revised:2018-07-19 Online:2019-04-18 Published:2019-04-18

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摘要：

城市轨道高架桥梁产生的噪声对周围环境的影响十分明显，日益受到人们的关注。过车时轨道高架桥梁振动辐射产生的结构噪声具有频率低，辐射面积大，传播距离远的特性，治理难度很大。本文对广州地铁4号线高架桥振动噪声进行了测试与分析，研制了调谐质量阻尼器对轨道高架桥梁的结构噪声进行控制。测试结果表明， 桥梁安装TMD后桥下1.5米测点在80Hz控制频带降低9.3-12.4dBA，10次过车降噪效果平均值为2.1dBA。

关键词: 振动与波；振动控制；调谐质量阻尼器, 轨道高架桥梁

Abstract:

The noise of the viaduct of city metros brings obvious influence on the environment, to which has been paid more attention. The structure-borne noise has the characteristics of low frequency, large radiation area and long distance propagation, it is quite difficult to mitigate. In this paper, the measurement and analysis of the vibration and noise of the viaduct of Guangzhou metro line 4 was implemented, Tuned Mass Damper (TMD) to control the structure-borne noise was developed and applied on the viaduct of Guangzhou metro line 4. The noise measurement showed, after the installation of TMD, at the control frequency band of 80Hz, the noise reduction is 9.3-12.4dBA, the reduction effect for ten times pass-by noise is 2.1dBA.