Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (6): 145-151.

• Architecture & Civil Engineering • Previous Articles     Next Articles

Simulation Model of Sound Field in Street Space Caused by Noise Transmitted from Bordering Large Workshop Buildings

Zhang Hong-hu1,2  Zheng Wei1   

  1. 1. College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,Zhejiang,China; 2. State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-01-06 Revised:2012-03-12 Online:2012-06-25 Published:2012-05-03
  • Contact: 郑卫(1975-) ，男，博士，讲师，主要从事城市规划与设计研究． E-mail: zhengw2011@126．com E-mail:zhanghh@ zju.edu.cn
  • About author:张红虎(1974-) ，男，博士，讲师，主要从事建筑声学研究．
  • Supported by:

    浙江省自然科学基金资助项目( Y5090138)

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Abstract:

In order to control the propagation of air-borne noise from the interior of large workshop buildings to their neighboring streets through the envelop enclosure,the sound field in the street space caused by the noise should be predicted in the design stage of buildings,which helps to determine the measures of sound insulation and noise reduction. In this paper,by considering the features of the related sound field and by synthetically employing the classical room sound field theory,the image source method and the acoustical radiosity method,a simulation model is established to calculate the contribution of the noise inside the workshop building to the sound field in the street space. The core of the model lies in the calculation by discretizing the boundary of the sound field and in the reasonable simplification of the directionality of sound reflection and sound transmission,which makes the model effective in dealing with the sound field with complex space geometry and nonuniform acoustical property distribution.

Key words: workshop building, air-borne noise, noise control, sound field

CLC Number: