School of Civil Engineering and Architecture, Central South University, Changsha 410075,China
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History+
Received
Revised
Published
1900-01-01
1900-01-01
2011-10-25
Issue Date
2011-10-25
Abstract
The running performance of train on Wuyijiang bridge is analyzed with energy random analysis theory for derailment. The calculated result shows that though the lateral amplitude exceeds the limit value of traffic safety given by code, the running safety , smoothness and comfort of train on Wuyijiang bridge can be guaranteed with the existing operation condition, and the measurement of rate-limiting or reinforcement is not needed to be taken for this bridge. By comparison between the lateral amplitude of the bridge and the limit value of traffic safety, it can be seen that the existing limit value of traffic safety of the lateral amplitude is too conservative. A method for establishing index of traffic safety for railway bridge is proposed on the basis of the analysis theory for train derailment, and the detailed contents are as follows. The lateral amplitude on the middle of beam is determined as index for traffic safety for the system of beam and pier. The critical system of beam and pier with which the running safety, smoothness and comfort of train can be guaranteed is determined. The lateral amplitude of critical system of beam and pier is calculated and determined as limit value for traffic safety. The limit value of lateral amplitude for traffic safety for Wuyijiang bridge is determined as L/6200, and the research findings have been applied by Jinwen railway corporation.
ZHOU Zhi-hui;ZHANG Jun;QIN Wen-xiao;ZENG Qing-yuan.
Study on Running Performance of Train and Index of Traffic Safety of Wuyijiang Bridge on Jinwen Line[J]. Journal of Vibration and Shock, 2011, 30(10): 9-13
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