一种高速铁路抢修钢梁的设计研究  

Design and Research of Steel Beam for Rush Repair of High-speed Railway

作　　者：孙志星[1,2] 张耀辉[1,2] 许宏伟[3] 

机构地区：[1]石家庄铁道大学国防交通研究所,河北石家庄050043 [2]石家庄铁道大学河北省交通应急保障工程技术研究中心,河北石家庄050043 [3]石家庄铁道大学土木工程学院,河北石家庄050043

出　　处：《筑路机械与施工机械化》2017年第2期76-79,84,共5页Road Machinery & Construction Mechanization

基　　金：中国铁路总公司科技研究开发计划(2014G008-A)

摘　　要：为了确保高速铁路桥梁在遭受破坏后能及时得到抢修并快速恢复通车,研究了一种能适应高速铁路桥梁抢修的梁部抢修结构——拼装式高铁抢修钢桁梁,建立了高铁抢修钢桁梁的有限元模型,进行了静力、动力(模态、车桥耦合)分析。结果表明:抢修梁的竖向刚度相对偏小,但在各计算车速下,桥梁响应、车辆响应均较小,满足相关规范要求的限值,可以作为一种抢修高铁桥梁的储备技术。In order to ensure that the high-speed railway bridges can be repaired quickly after being damaged, an assembled steel beam for rush repair of high speed railway bridges was studied. The finite element model of steel beam was built, and the static and dynamic （mode and vehicle-bridge coupling） analysis was carried out. The results show that the vertical stiffness of the beam is relatively small, but the bridge response and vehicle response are small at all calculated vehicle speeds, which meet the requirements of the relevant specifications. The steel beam can be used as a reserve technique for repairing high-speed railway bridges.

关 键 词：高速铁路 抢修钢梁 结构刚度 结构分析 

分 类 号：U445.34[建筑科学—桥梁与隧道工程]