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- Title
Investigation of Structure-Borne Noise Propagation Characteristics in a Novel Double-Story High-Speed Railway Station.
- Authors
Zhi, Guoliang; Chen, Zhenyu; Guo, Tong; Zhang, Minte
- Abstract
Introduction: Construction and operation of high-speed trains in railway stations can induce substantial vibrations, resulting in impermissible structure-borne noise (SBN), occasionally causing disruptions for passengers and staff. This issue poses serious challenges in the advancement of novel multi-story high-speed railway stations in large cities. Until now, limited methods have been introduced to predict and evaluate SBN for guiding station design and construction. Besides, the computational speed and accuracy of these methods often fall short of expectations. Objectives: In response to this need, a simulation method for SBN based on Auto CAD, Altair HyperMesh, and MSC Actran software was proposed. Methods: Firstly, numerical models were established for the elevated waiting hall and underground entrance hall of Beijing Fengtai Railway Station. Secondly, field measurements were conducted to validate the reliability of the simulation method by comparing the measured and simulated results. Subsequently, numerical analysis under different conditions was performed to study the transmission characteristics of SBN. Finally, the SBN in the elevated waiting hall and the underground entrance hall were evaluated accordingly. Results: The frequency of the simulated SBN at the elevated waiting hall prominent ranges from 20 to 40 Hz and 125 to 200 Hz, while frequencies at the underground entrance hall exhibit a significant band between 80 and 125 Hz. The peak A-weighted overall SPL under various conditions for the elevated waiting hall is 69.33 dB, while for the underground entrance hall is 71.63 dB. Conclusion: SBN in the elevated waiting hall primarily originates from the elevated track floor, which is different from the underground entrance hall where it stems from the ground track floor. The A-weighted overall sound pressure level (SPL) in the elevated waiting hall satisfies the SBN comfort criteria, whereas the A-weighted overall SPL in the underground entrance hall falls short of the chosen specification. This study enhances the prediction method and understanding of the transmission characteristics of SBN. Consequently, it provides valuable insights for constructing multi-story railway stations with improved comfort in the future.
- Subjects
RAILROAD stations; SOUND pressure; RAILROAD trains; HIGH speed trains; NOISE; CITIES &; towns
- Publication
Journal of Vibration Engineering & Technologies, 2024, Vol 12, Issue 3, p5325
- ISSN
2523-3920
- Publication type
Article
- DOI
10.1007/s42417-023-01207-w