市域(郊)铁路桥梁选型及其上部结构施工关键技术  

Type Selection and Key Technologies of Superstructure Construction of Bridge in Urban(Suburban)Railway

作　　者：梁显伟 郭晓宇 李自林 张龙明 庄凤明 LIANG Xian-wei;GUO Xiao-yu;LI Zi-lin;ZHANG Long-ming;ZHUANG Feng-ming(No.6 Engineering Co.,Ltd.of FHEC of CCCC,300459,Tianjin,China;School of Civil Engineering,Tianjin Chengjian University,300384,Tianjin,China;Tianjin Key Laboratory of Civil Structure Protection and Reinforcement,300384,Tianjin,China;Hebei Key Laboratory of Geotechnical Engineering Safety and Deformation Control(Hebei University of Water Resources and Electric Engineering),061001,Cangzhou,Hebei,China)

机构地区：[1]中交一公局第六工程有限公司,天津市300459 [2]天津城建大学土木工程学院,天津市300384 [3]天津市建筑结构防护与加固重点实验室,天津市300384 [4]河北省岩土工程安全与变形控制重点实验室(河北水利电力学院),河北省沧州市061001

出　　处：《河北水利电力学院学报》2023年第3期51-58,共8页Journal of Hebei University Of Water Resources And Electric Engineering

基　　金：天津市技术创新引导专项(22YDTPJC00910);天津市交通运输科技发展计划项目(2022-22)。

摘　　要：基于对市域(郊)铁路特点、桥梁结构体系、梁型及其施工方法的分析,提出了市域铁路桥梁选型思路和原则。并以天津市第一条市域铁路项目—天津中心城区至静海市域(郊)铁路首开段工程为例,总结归纳了大跨度连续梁桥上部结构悬臂浇筑施工关键技术,尤其对0#块支架预压方法、墩梁临时固结措施、预应力智能张拉工艺、管道智能压浆工艺以及挂篮预压方法进行了详细说明,这对于指导我国市域(郊)铁路大跨度连续箱梁桥设计和建造具有重要借鉴意义。Based on the analysis of the characteristics of urban(suburban)railways,bridge structural systems,girder types,and construction methods,the ideas and principles oftype selection for urban(suburban)railway bridges were proposed.And taking the first urban(suburban)railway project in Tianjin-the first sectionengineering of urban(suburban)railway project from downtown to Jinghai in Tianjin as an example,the key technologies of cantilever casting construction for the upper structure of large-span continuous girder bridge were summarized.In particular,the preloading method of construction bracket for 0#block,temporary consolidation measures between pier and girder,intelligentstretching technology of prestress,intelligent grouting process of prestressing duct and preloading method of construction hanging basket were explained in detail.This has an important reference significance for guiding the design and construction of large-span continuous box girder bridge in the urban(suburban)railways in China.

关 键 词：市域(郊)铁路桥梁 结构选型 悬臂浇筑 施工工艺 

分 类 号：U442.54[建筑科学—桥梁与隧道工程] U445.4[交通运输工程—道路与铁道工程] U448.13