In this paper, a framework for dynamic analysis on the train-bridgesystem after barge collision is proposed. A 6×32 m simply-supportedbox-girders bridge and a CRH2 high-speed train are considered as anillustrating case study. The analysis results show that the additionalunevenness of the track on the bridge after collision will seriouslyinfluence the dynamic responses of the bridge, and the train runningsafety cannot be ensured at high speed. In addition, considering thesubsoil in the train-bridge model is very important to evaluate therunning safety of train running on the bridge after collision.
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