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2020 | OriginalPaper | Chapter

Analysis of Vibration Propagation Law of Rail Transit Underpassing Large-Span Building Structure

Authors: Feng Dubei, Jin Xuwei, Ge Jinrong, Yang Jizhong

Published in: Advances in Dynamics of Vehicles on Roads and Tracks

Publisher: Springer International Publishing

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Abstract

Based on the vehicle-track coupling dynamics theory and finite element analysis method, the coupled vibration analysis model of the railway transit underpass the terminal structure is established, and the vibration propagation law of the soil and the upper terminal structure under the condition of the subway train underpass is analyzed. The results show that, compared with the low-frequency vibration, the vibration attenuation of the medium-high frequency around 63 Hz is more significant; The common column-net between tunnel structure and superstructure will lead to direct vibration transmission, and the structural design of rail transit underpass buildings should consider avoiding the common column-net. In the transmission of train vibration to superstructure and surrounding soils, the attenuation of floor vibration and soil vibration shows periodic attenuation regularity with the increase of distance from the line, and the attenuation of building vibration is obvious. The attenuation speed of soil is obviously less than that of soil. The isolation of building structure and vibration source should be given priority in vibration isolation design.
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Metadata
Title
Analysis of Vibration Propagation Law of Rail Transit Underpassing Large-Span Building Structure
Authors
Feng Dubei
Jin Xuwei
Ge Jinrong
Yang Jizhong
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-38077-9_112

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