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| Analysis and Study of Train-bridge Coupling Dynamic of Anti-curve Railway Bridge System#br# |
| ZHENG Xiao-long |
China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China
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Abstract Abstract：Research purposes： When the railway bridge is designed in an anti-curve, it should be fully demonstrated according to the requirements of the relevant regulations. This paper took a station expansion project by the anti-curve railway bridge terrain conditions design as an example, using MSC.PATRAN and ADAMS/RAIL analysis software，built a complete three-dimensional model of bridge and train, analyzed the train-bridge coupling vibration about CRH1 bullet train through the anti-curve bridge under different speed conditions．
Research conclusions：（1）Through analyzing of the calculation results, such as the displacement and acceleration of bridge，derailment coefficient, reduction rate of wheel, acceleration and sperling index，we can draw the following conclusions: when the CRH1 bullet train running with 70~90 km/h speed through the anti-curve railway bridge, the train's derailment coefficient and reduction rate of wheel increases as the train speed rises, the bridge's vertical and lateral vibration displacement is small, the bridge's vertical and lateral vibration acceleration is less than the specified limit.（2）The anti-curve bridge has enough vertical and lateral stiffness for the train running safety and the passenger riding comfort.（3）The anti-curve bridge scheme designed due to topographical condition is feasible. (4)The research results can provide good references and guidances for the study of train-bridge coupling vibration of anti-curve of railway bridge.
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