Train-Track-Bridge Dynamic Simulation of Reinforced T-Beam on Speed-Up Railway Line
by Shaolin Wang, (Traction Power State Key Laboratory, Southwest Jiaotong University, P.O. Box 610031, Chengdu, China E-mail: wangshaolinshi@163.com), Wanming Zhai, (Traction Power State Key Laboratory, Southwest Jiaotong University, P.O. Box 610031, Chengdu, China), and Jianmin Gao, (Traction Power State Key Laboratory, Southwest Jiaotong University, P.O. Box 610031, Chengdu, China)
pp. 2005-2010, (doi: http://dx.doi.org/10.1061/41039(345)332)
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| Document type: |
Conference Proceeding Paper |
| Part of: |
International Conference on Transportation Engineering 2009 |
| Abstract: |
With the increase of train speed on Chinese railways, the problem about the running safety and the ride comfort of train is increasingly serious. In this paper, a real reinforced bridge, named the Yunliang River Bridge, is investigated as an example. Dynamic properties of a train passing through the bridge are simulated with the train-track-bridge dynamics simulation software TTBSIM based on the train-track-bridge coupled vibration theory. Simulated results indicate that when the Chinese CRH2 motor train set passes the bridge at the speed range form 160 to 250 km/h, the running safety is guaranteed, and the dynamic performances of the train and the bridge are all meet requirements of relevant regulations. The reinforcement of the bridge is effective. |
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