• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 26 Issue 3
Jun.  2013
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Article Contents
ZHANG Xun, LI Xiaozhen, LIU Quanmin, WU Jinfeng, LI Yadong. Structure-Borne Noise of Concrete Box-Girder and Its Influence Factors[J]. Journal of Southwest Jiaotong University, 2013, 26(3): 409-414. doi: 10.3969/j.issn.0258-2724.2013.03.003
Citation: ZHANG Xun, LI Xiaozhen, LIU Quanmin, WU Jinfeng, LI Yadong. Structure-Borne Noise of Concrete Box-Girder and Its Influence Factors[J]. Journal of Southwest Jiaotong University, 2013, 26(3): 409-414. doi: 10.3969/j.issn.0258-2724.2013.03.003

Structure-Borne Noise of Concrete Box-Girder and Its Influence Factors

doi: 10.3969/j.issn.0258-2724.2013.03.003
  • Received Date: 11 Jun 2012
  • Publish Date: 25 Jun 2013
  • In order to research on structure-borne noise of box-girder and its influence factors, a simply-supported concrete box-girder with a span of 32 m was selected as the case study, its structure-borne noise was simulated by means of hybrid FEM-BEM method, and the computed results were validated by field measurements. On this basis, the influence laws of plate thickness and dip angle of web on structure-borne noise were probed into. The research results show that the dominate frequency ranges of box-girder vibration and structure-borne noise are 40.0 to 125.0 Hz and 31.5 to 100.0 Hz, respectively, and the peak frequency of noise around the bottom plate is 63.0 Hz. The structure-borne noise decreases with the increase of plate thickness, and the addition of top plate thickness is the most effective noise-reduction measure. The preferable dip angle of web is 0? to 12? for lower structure-borne noise of box-girder.

     

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