Measurement and Analysis of the Structural Noise of Urban Bridges

Tao Jin; Qi Huang; Yong Ding; Li Feng Zhu

doi:10.4028/www.scientific.net/AMM.548-549.1623

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 548-549Measurement and Analysis of the Structural Noise...

Measurement and Analysis of the Structural Noise of Urban Bridges

Abstract:

To explore the noise generated by bridges during operational period, the equivalent continuous sound pressure levels of 12 bridges in the city of Ningbo were measured and analyzed. The measured data show that (1) Although the measured sound levels of these bridges meet the requirement of Chinese codes, they are near the maximum limit and the vibration and noise reduction is necessary; (2) A-weighted sound level of bridge is close to that of the road nearby; (3) Z-weighted sound level of bridge is much greater than that of the road nearby, it indicates that the bridge noise contains much low frequency noise, so that A-weighted sound level can’t reflect the noise of bridge accurately, and Z-weighted sound level shall be used to evaluate the acoustic environment near bridges.

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Periodical:

Applied Mechanics and Materials (Volumes 548-549)

Pages:

1623-1626

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.548-549.1623

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Online since:

April 2014

Authors:

Tao Jin, Qi Huang, Yong Ding*, Li Feng Zhu

Keywords:

Bridge, Low Frequency Noise, Road, Weighted Sound Level

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* - Corresponding Author

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