六七式铁路舟桥在现行客货共线铁路列车荷载作用下的适用性研究  

Study on Applicability of 67-Type Railway Pontoon Bridge Under Train Load of Current Mixed Passenger and Freight Railway

作　　者：胡君 王振军[2] 田宇 张艳萍 HU Jun;WANG Zhenjun;TIAN Yu;ZHANG Yanping(The 5th Student Brigade, Army Military Transportation University, Tianjin 300161, China;The Pontoon Department of War Preparedness of China Railway, Qihe 251100, China;National Defense Transportation Department, Army Military Transportation University, Tianjin 300161, China)

机构地区：[1]陆军军事交通学院学员五大队,天津300161 [2]铁道战备舟桥处,山东齐河251100 [3]陆军军事交通学院国防交通系,天津300161

出　　处：《国防交通工程与技术》2021年第6期5-8,共4页Traffic Engineering and Technology for National Defence

摘　　要：六七式铁路舟桥是保障深水大跨度铁路桥梁的重要手段。随着铁路运输业的发展,现行列车荷载已经超过六七式铁路舟桥的原设计荷载,因此有必要对其在现行客货共线铁路列车荷载作用下的适用性进行研究。以某铁路特大桥的舟桥保障方案为例,首先建立并验证了六七式铁路舟桥的有限元模型,仿真分析发现,在ZKH荷载作用下原有保障方案的部分梁部、托架承载力及梁部、浮墩竖向位移不能满足规范要求,提出了加固方案解决了问题。本文研究结果可为深水大跨度铁路桥梁舟桥保障方案的制订提供参考。The 67-type railway pontoon bridge is an important means to protect deep-water long-span railway bridges.With the development of railway transportation industry,the current train load has exceeded the original design load of the 67-type railway pontoon bridge,so it is necessary to study its applicability under the current train load of passenger and freight railway.Taking the support scheme of a super-large railway bridge as the example,the finite element model of the 67-type railway pontoon bridge was established and verified.The simulation analysis showed that part of the beam,the bearing capacity of the bracket and the vertical settlement of the beam and the floating pier under ZKH load could not meet the requirements of the specification,and the reinforcement scheme was proposed to solve the problem.The research results of this paper can provide reference for the formulation of support scheme of deep-water long-span railway bridge.

关 键 词：六七式铁路舟桥 铁路桥梁 保障方案 客货共线铁路列车荷载 适用性 

分 类 号：E951.3[军事—军事工程]