• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Smart City and Systems Engineering >Running Safety Analysis of High-Speed Railway Arch Bridge Under Seismic Excitations
【24h】

Running Safety Analysis of High-Speed Railway Arch Bridge Under Seismic Excitations

机译：地震作用下高速铁路拱桥的运行安全分析

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to study the influence of earthquake on the running safety of high-speed train running over the arch bridge, a 445m reinforced concrete top-bear arch bridge is taken as an example by using the program of Train-Track-Bridge-Seismic Analysis System (TTBSAS). Three measured seismic waves are inputted by relative motion method for simulation calculation, to analyze the influence of different seismic wave input on the calculation results and the amplitude distribution of different vehicles' dynamic response under the condition of earthquake or no earthquake. The results show that the selection of seismic waves has a significant influence on the calculation results; When there is no earthquake, the train dynamic response is closely related to the train parameters, the dynamic response of the first train and the second train(trailer) can be used to judge the safety and comfort of the whole train. In the case of earthquake, the non-stationarity of the ground motion is the control factor, the dynamic response amplitude of all numbered trains should be considered comprehensively; The earthquake motion thresholds gradually decrease as the speed increase, when the speed is 300km/h, the earthquake motion threshold of the 445m upper reinforced concrete top-bear arch bridge is 0.15g.
机译：为了研究地震对拱桥上高速列车运行安全性的影响，以Train-Track-Bridge-地震分析程序为例，以445m钢筋混凝土顶拱桥为例。系统（TTBSAS）。通过相对运动法输入三个实测地震波进行模拟计算，分析了地震或非地震条件下不同地震波输入对不同车辆动力响应的计算结果和振幅分布的影响。结果表明，地震波的选择对计算结果有很大的影响。在没有地震的情况下，列车的动力响应与列车参数密切相关，可以利用第一列车和第二列车（挂车）的动力响应来判断整个列车的安全性和舒适性。在地震的情况下，地震动的非平稳性是控制因素，应综合考虑所有编号列车的动态响应幅度;地震运动阈值随速度的增加而逐渐减小，当速度为300km / h时，445m上部钢筋混凝土顶拱桥的地震运动阈值为0.15g。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号