市域铁路桥梁选型研究  

Research on Type Selection of Urban Railway Bridges

作　　者：张海 颜志华 蒋成强 ZHANG Hai;YAN Zhihua;JIANG Chengqiang(Civil Engineering Design Research Institute,China Railway Design Corporation,Tianjin 300300,China)

机构地区：[1]中国铁路设计集团有限公司土建工程设计研究院,天津300300

出　　处：《中国铁路》2022年第7期18-23,共6页China Railway

摘　　要：市域铁路在我国处于起步阶段,已建成市域铁路桥梁的结构体系、梁型、墩型种类繁多,桥梁选型思路和原则亟待统一。通过对市域铁路桥梁标准、结构体系及梁型、墩型的分析研究,得到以下结论:(1)宜优先采用单箱单室简支箱型梁作为区间标准梁型,必要时可采用连续梁或连续梁刚构体系;(2)通常市域铁路桥梁推荐标准跨度32 m,梁高2 m,腹板间距4.9 m;(3)箱型梁推荐采用独柱、Y形墩等墩型,U型梁推荐采用顶帽式墩型。提出市域铁路桥梁选型思路和原则,可为我国市域铁路桥梁设计和建造提供参考。Urban railway is in its infancy in China.Due to a wide range of structure systems,girder types and pier types of urban railway bridges,harmonized ideas and principles are in urgent need for bridge type selection.Through the analysis and study of the standards,structural system,girder type and pier type of urban railway bridges,we can conclude that:(1)single-box single-chamber simply-supported box girder should be preferred as the standard girder type in the section,and continuous girder or continuous girder rigid frame structure may be adopted if necessary;(2)generally,standard span of 32 m,girder height of 2 m and web plate spacing of 4.9 m are recommended for urban railway bridges;(3)pier types such as single-column pier and Yshaped pier are recommended for box girder,and capping pier for U-shaped girder.This paper proposes the thought and principle of type selection for urban railway bridge,which can provide reference for the design and construction of urban railway in China.

关 键 词：市域铁路 桥梁选型 结构体系 梁型 墩型 

分 类 号：U239.5[交通运输工程—道路与铁道工程]