Attenuation and Prediction of the Ground Vibrations Induced by High-Speed Trains Running Over Bridge

Author:

Zhang Yunshi123,Lou Yu13,Zhang Nan4,Cao Yanmei4,Chen Liu13

Affiliation:

1. China Electronic Engineering Design Institute Co. Ltd, Beijing 100142, P. R. China

2. Tsinghua University, Beijing 100084, P. R. China

3. Beijing Engineering Research, Center for Micro-vibration, Environmental Control, Beijing 100142, P. R. China

4. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China

Abstract

This paper aims to study the transfer laws of vibration signals in the free field near a high-speed train line by conducting a field test. The characteristics of ground vibration acceleration were analyzed in the time and frequency domains, and a prediction method in the frequency domain was proposed. The results show: (1) there is a vibration amplification area away from the bottom of the pier under the influence of high-speed trains running over the bridge due to the fluctuation attenuation of the vibration waves; (2) the dominant peak frequency points in the frequency spectrum of the acceleration can be regarded as the resonance frequency induced by periodic loading; and (3) the soil vibration can be effectively predicted by the proposed method with a strong capability to defend the interference of environmental vibrations according to the comparison between the predicted value and the experimental data.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Building and Construction,Civil and Structural Engineering

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