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A platform for research: civil engineering, architecture and urbanism
The Study on Vibration Transmissibility of Track-Box Girder System
With the widely used of the bridge, the problems of the bridge vibration and noise caused by high speed railway becomes more seriously than before. In this paper, based on the theory analysis of box girder's displacement admittance, a numeric model of track-box girder bridge system, which has been verified by the small-scale bridge model experiment, was built for the analysis of vibration transmissibility in the railway track and the box girder bridge under the real conditions. The result shows that, (1) the finite element model established in this paper can be used to predict the vibration transmission from the track to bridge. (2) The track-induced vibration at different frequency bands has a certain degree of attenuation after the damping action in the track and bridge structure, however, the attenuation velocity of the low frequency vibration is very slow. (3) The horizontal vibration of the flange plate position can not be ignored when the bridge structure noise was analyzed.
The Study on Vibration Transmissibility of Track-Box Girder System
With the widely used of the bridge, the problems of the bridge vibration and noise caused by high speed railway becomes more seriously than before. In this paper, based on the theory analysis of box girder's displacement admittance, a numeric model of track-box girder bridge system, which has been verified by the small-scale bridge model experiment, was built for the analysis of vibration transmissibility in the railway track and the box girder bridge under the real conditions. The result shows that, (1) the finite element model established in this paper can be used to predict the vibration transmission from the track to bridge. (2) The track-induced vibration at different frequency bands has a certain degree of attenuation after the damping action in the track and bridge structure, however, the attenuation velocity of the low frequency vibration is very slow. (3) The horizontal vibration of the flange plate position can not be ignored when the bridge structure noise was analyzed.
The Study on Vibration Transmissibility of Track-Box Girder System
Luo, Kun (author) / Lei, Xiaoyan (author) / Zeng, Shaohui (author)
First International Conference on Rail Transportation 2017 ; 2017 ; Chengdu, Sichuan Province, China
ICRT 2017 ; 142-148
2018-03-13
Conference paper
Electronic Resource
English
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