Experimental and numerical study on vibration and structure-borne noise of composite box-girder railway bridges

Liu, Xiao; Zhang, Nan; Sun, Qikai; Wu, Zhaozhi

doi:10.1080/23248378.2022.2131641

Cited by 6 publications

(1 citation statement)

References 23 publications

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“…However, compared with plain tracks on the foundation, the noise problems caused by trains passing the steel or steel-concrete composite bridges are much more serious due to "structure-borne noise". 1 Field test results of structural noise from railway bridges show that the maximum sound pressure level in the time domain can be up to 90 dB, [2][3][4] which seriously affects the daily routines of residents living along the line. Even worse, longterm exposure to intense noise may cause pathological changes in human body, posing a serious health risk.…”

Section: Introductionmentioning

confidence: 99%

A combined iterative complex eigenvalue method and finite element-boundary element method for acoustic analysis of the railway steel bridge deck damped with constrained layer damping

Jiang,

Li,

et al. 2023

Jnl of Sandwich Structures & Materials

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This paper presents a combined method to predict structure-borne noise from the railway steel bridge deck damped with constrained layer damping (CLD), in which the frequency-dependent properties of the viscoelastic material are accurately considered through the iterative complex eigenvalue method (ICEM). Then, a 1:4 steel bridge deck model is designed and manufactured, and a series of hammer tests of the CLD-damped steel bridge deck are carried out in a semi-anechoic chamber to verify the proposed method. Then, the noise reduction effect of CLD is discussed in detail. It shows that the overall SPLs at the near field point S-3 and the far field point S-8 are reduced by 7.5 dB and 11.1 dB, respectively, and the noise attenuation rate along with distance is also improved significantly after damped with CLD. Finally, the influences of the key design parameters of CLD on noise reduction are quantitatively analyzed, so as to provide reference for the research and application of CLD in railway bridge engineering.

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Section: Introductionmentioning

confidence: 99%

A combined iterative complex eigenvalue method and finite element-boundary element method for acoustic analysis of the railway steel bridge deck damped with constrained layer damping

Jiang,

Li,

et al. 2023

Jnl of Sandwich Structures & Materials

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Noise reduction mechanism of high-speed railway box-girder bridges installed with MTMDs on top plate

Zhang,

Yang

et al. 2024

Railw. Eng. Sci.

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The issue of low-frequency structural noise radiated from high-speed railway (HSR) box-girder bridges (BGBs) is a significant challenge worldwide. Although it is known that vibrations in BGBs caused by moving trains can be reduced by installing multiple tuned mass dampers (MTMDs) on the top plate, there is limited research on the noise reduction achieved by this method. This study aims to investigate the noise reduction mechanism of BGBs installed with MTMDs on the top plate. A sound radiation prediction model for the BGB installed with MTMDs is developed, based on the vehicle–track–bridge coupled dynamics and acoustics boundary element method. After being verified by field tested results, the prediction model is employed to study the reduction of vibration and noise of BGBs caused by the MTMDs. It is found that installing MTMDs on top plate can significantly affect the vibration distribution and sound radiation law of BGBs. However, its impact on the sound radiation caused by vibrations dominated by the global modes of BGBs is minimal. The noise reduction achieved by MTMDs is mainly through changing the acoustic radiation contributions of each plate of the bridge. In the lower frequency range, the noise reduction of BGB caused by MTMDs can be more effective if the installation of MTMDs can modify the vibration frequency and distribution of the BGB to avoid the influence of small vibrations and disperse the sound radiation from each plate.

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Acoustic–vibration characteristics and low–structural–noise optimization design of upright sound barrier for rail transit

Zhang,

Ren,

Yang

et al. 2024

International Journal of Rail Transportation

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Experimental and numerical study on vibration and structure-borne noise of composite box-girder railway bridges

Cited by 6 publications

References 23 publications

A combined iterative complex eigenvalue method and finite element-boundary element method for acoustic analysis of the railway steel bridge deck damped with constrained layer damping

A combined iterative complex eigenvalue method and finite element-boundary element method for acoustic analysis of the railway steel bridge deck damped with constrained layer damping

Noise reduction mechanism of high-speed railway box-girder bridges installed with MTMDs on top plate

Acoustic–vibration characteristics and low–structural–noise optimization design of upright sound barrier for rail transit

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