THE INFLUENCE OF HORIZONTAL RING RIB ON VIBRATION AND NOISE OF BOX GIRDER IN URBAN RAILWAY TRANSIT
Journal Title: Topics in Intelligent Computing and Industry Design (ICID) - Year 2017, Vol 1, Issue 2
Abstract
The box girder of urban rail transit is taken as the research object in this paper. By the combination of field measurement and numerical simulation, frequency spectrum of the vibration and radiated noise of the box girder during the train running is studied. It can be found that the main frequency bands of the box girder structure noise are in the range of 0~100Hz, and there is a certain correlation between vibration and noise. And the acoustic simulation method based on finite element and infinite element in ABAQUS can simulate the bridge structure noise well. On this basis, this paper further studies the vibration and radiated noise levels of the beams after the installation of horizontal ring ribs inside the box girder. By comparing the results, the horizontal ring ribs can reduce the vibration of bridge roof, floor as well as web and wing plate in some frequency band to a certain extent. Thus, it can reduce the noise sound pressure value in the corresponding frequency band, thereby reducing the overall structure noise of the bridge.
Authors and Affiliations
Jiang Yu-Chun, Zhou Li, Zhang Tian-Qi, Luo Yan-Yun
Keywords
Related Articles
- EP ID EP409822
- DOI 10.26480/wsmce.01.2017.149.153
- Views 51
- Downloads 0
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