Train/Track/Bridge Dynamic Interactions: Simulation and Applications
Train/Track/Bridge Dynamic Interactions: Simulation and Applications
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DOI：
10.1080/00423114.2002.11666270
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发表时间：
2002-01
影响因子：
3.6
通讯作者：
W. Zhai;C. Cai
中科院分区：
文献类型：
--
作者：
W. Zhai;C. Cai
本文描述了一种用于研究列车/轨道/桥梁动态相互作用的数值模拟技术。建立了两种动力模型，分别模拟了列车在有碴轨道和无碴板轨道桥梁上的动力响应。模型中考虑了轨道结构和轮轨相互作用对系统动力学的影响。研究了轨道随机不规则性对列车/轨道/桥梁动力相互作用的影响。将所提出的仿真技术应用于我国第一条客运专线的实际建设工程中。通过在设计阶段的详细仿真，对该线上3座特大桥梁的结构设计进行了评价，结果表明，这些桥梁能够满足高速运输对动力性能的要求。
SUMMARY This paper describes a numerical simulation technique that is used to investigate the dynamic train/track/bridge interaction. Two dynamic models are established to simulate the dynamic responses of a train running on the bridges with the ballasted track and the non-ballasted slab track, respectively. Effect of the track structure and the wheel/rail interaction on the system dynamics is considered in the models. The influence of track random irregularities on train/track/bridge dynamic interactions is investigated. The proposed simulation technique is applied to practical construction engineering in the Chinese first special railway line for passenger transport. The structural design of three extraordinary large bridges with non-ballasted tracks in this line is evaluated through a detailed simulation in the design stage and results show that these bridges are able to satisfy the demand of dynamic performance for the high-speed transport.