重载高速大跨度简支槽型梁行车安全性研究  

Research on operational safety of a heavy-haul high-speed long-span simple trough beam

作　　者：刘孟富 LIU Mengfu(China Civil Engineering Construction Corporation-UAE,Abu Dhabi 50200,UAE)

机构地区：[1]中国土木工程集团有限公司阿联酋分公司,阿联酋阿布扎比50200

出　　处：《工业安全与环保》2025年第4期24-30,36,共8页Industrial Safety and Environmental Protection

基　　金：中国土木工程集团有限公司科研计划课题(ZT-2020B03)。

摘　　要：为研究重载高速槽型梁行车安全性,以世界首座48 m客货共线大跨重载简支槽型梁为对象,基于Midas与Simpack平台,建立车-线-桥耦合动力仿真模型。采用CRH2型动车组和重载货车,针对多种速度条件,单线、双向对开2种线路方式,进行车桥耦合计算。结果表明,在不同车速运行时,CRH2型客车及重载货车行车安全性和乘坐舒适性满足要求;在时速120、100 km/h下,重载货车双线的桥梁竖向加速度略微超标。研究结果可为重载高速大跨度槽型梁安全运营提供参考。To investigate the traffic safety of heavy-haul high-speed trough girders,the world's first 48-meter-long heavy-haul and high-speed simply-supported trough girder was selected as the research object.A vehicle-track-bridge coupling dynamic simulation model was established using the Midas and Simpack platforms.The study considered the CRH2 EMU and heavy-haul trucks under various speed conditions,with vehicle-bridge coupling calculations conducted for both one-way and two-way driving scenarios.The results show that the safety and ride comfort of the CRH2 EMU and heavy-haul trucks meet the required standards across different speeds.However,the vertical acceleration of the bridge slightly exceeds the permissible limit at speeds of 120 km/h and 100 km/h.These findings provide valuable insights and a reference for ensuring the safe operation of heavy-haul high-speed trough girders.

关 键 词：高速铁路 重载铁路 槽型梁 行车安全性 动力响应 

分 类 号：U44[建筑科学—桥梁与隧道工程]