重载铁路用组合辙叉的结构设计  

Structure design of combined crossing for heavy-duty railway

作　　者：闫旭辉[1] Yan Xuhui(Technology Center,China Railway Baoji Bridge Group Co.,Ltd.,Baoji 721006,China)

机构地区：[1]中铁宝桥集团有限公司技术中心轨道线路研究院,陕西宝鸡721006

出　　处：《山西建筑》2021年第18期111-112,115,共3页Shanxi Architecture

摘　　要：通过结构检算,对重载铁路用组合辙叉镶嵌翼轨、心轨结构、桥式垫板进行创新设计,分析了组合辙叉线路使用过程主要失效形式和使用情况,应用锻造高锰钢材料和新工艺,开发重载铁路用新型75 kg/m钢轨12号组合辙叉。结果表明此结构能够减少制造和养护成本,可实现心轨、镶嵌翼轨线上、线下互换组装。Through structural simple calculation,this paper innovates the design of the combined crossing with inlaid wing rail,heart rail structure and bridge pad plate,analyzes the main failure forms and use conditions of the combined crossing on the course of using the railway,and develops the new combination frog with 75 kg/m rail No.12 for heavy haul railway by using crossing high manganese steel material and new technology.The results show that this structure can reduce the manufacturing and maintenance cost,and can realize the interchangeable assembly of the core rail and the inlaid wing rail on line and off line.

关 键 词：锻造高锰钢 组合辙叉 结构设计 检算 

分 类 号：U213.62[交通运输工程—道路与铁道工程]