Study on structure-borne noise characteristics and noise reduction of “integrated station-bridge” high-speed railway station

Abstract

Due to its high space utilization efficiency and overall advantages, the "integrated station-bridge" design is widely used in high-speed rail stations. However, compared to traditional separated station-bridge structures, the structure-borne noise generated by high-speed trains passing through these stations is more pronounced. To investigate the structure-borne noise radiation characteristics of these station designs, we developed a noise simulation model for the "integrated station-bridge" high-speed railway station and validated its reliability through comparison with test results. Building on this, we implemented the floating track slab between the track structure and the station platform to mitigate structure-borne noise. Furthermore, we examined the factors influencing the noise reduction effectiveness of the floating floor. The results indicated that train passages result in significant structure-borne noise issues in "integrated station-bridge" stations. The maximum sound pressure levels at the waiting hall and platform exceed 70 dB(A). After the implementation of the floating floor, the maximum sound pressure levels on each floor decreased by 11–14 dB(A). Additionally, increasing the thickness of the floating floor and reducing the stiffness of the steel spring bearings both enhanced the noise reduction effectiveness of the floating floor.

Keywords

"Integrated station-bridge" high-speed railway station / Structure-borne noise / Floating floor / Noise reduction

CRediT authorship contribution statement

Xinhao Liang: Writing – review & editing, Writing – original draft, Software. Di Wang: Writing – original draft, Software. Bowen Hou: Writing – review & editing, Writing – original draft, Validation, Methodology.

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have influenced the work reported in this paper.

Acknowledgments

This research is supported by the National Key R&D Program of China (2024YFF0508101), the Fundamental Research Funds for the Beijing Jiaotong University (2024JBMC010), and the National Natural Science Foundation of China (52378428).

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