基于实例探讨下穿既有铁路道岔区的框架桥施工及有限元分析  

Exploring the Construction and Finite Element Analysis of a Frame Bridge Undercrossing the Existing Railway Turnout Area Based on Examples

作　　者：徐佳乐 XU Jia-le(Nanchang Railway Survey and Design Institute Co.,Ltd.,Nanchang 330000,China)

机构地区：[1]南昌铁路勘测设计院有限责任公司,南昌330000

出　　处：《价值工程》2024年第10期53-56,共4页Value Engineering

摘　　要：随着当前经济建设步伐的持续推进,我国交通行业得到了显著的发展,各类铁路、道路纵横交错、四通八达,极大推动了国民经济的健康持续发展,与此同时,道路与铁路的交叉也越来越多,传统的平交道口显然难以满足现代交通的发展及道路高速、安全的行车要求,尤其在一些复杂地势的区域,受到地形条件的影响,所以,越来越多项目开始采取立体交叉的方式来解决道路和铁路交叉的问题,其中道路下穿既有铁路就是其中常见的建设方式之一,本文主要结合案例对下穿既有铁路道岔区框架桥施工及其有限元分析进行探讨。With the continuous advancement of the current economic construction pace,China's transportation industry has achieved significant development.Various railways and roads are crisscrossing and extending in all directions,greatly promoting the healthy and sustainable development of the national economy.At the same time,there are more and more intersections between roads and railways.Traditional level crossings are obviously difficult to meet the development of modern transportation and the requirements of high-speed and safe driving on roads.Especially in some complex terrain areas,affected by terrain conditions,more and more projects are adopting the method of grade separation to solve the problem of road and railway intersections.Among them,the construction method of road underpass existing railways is one of the common construction methods.This article mainly combines cases to explore the construction and finite element analysis of the framework bridge in the underpass existing railway turnout area.

关 键 词：既有铁路 道岔区 框架桥 有限元分析 施工要点 

分 类 号：U445[建筑科学—桥梁与隧道工程]