市域铁路双线简支箱梁支架预压技术研究  

Research on Preloading Technology for Simply Supported Box Beam Supports on Double Track of City Railways

作　　者：武相坤 王小兵 张元师 钱栋栋 WU Xiang-kun;WANG Xiao-bing;ZHANG Yuan-shi;QIAN Dong-dong(CRRC LTET Co.,Ltd.,Beijing 100078,China;Jiangsu CRRC Urban Development Co.,Ltd.,Wuxi 214105,China;Industrial and Electrical Testing Institute of China Railway Shenyang Bureau Group Co.,Ltd.,Shenyang 110001,China)

机构地区：[1]中车智能交通工程技术有限公司,北京100078 [2]江苏中车城市发展有限公司,无锡214105 [3]中国铁路沈阳局集团有限公司工电检测所,沈阳110001

出　　处：《价值工程》2023年第33期73-76,共4页Value Engineering

摘　　要：本文以台州市域铁路温岭火车站特大桥实际工程为例,结合35m简支箱梁支架预压施工经验,介绍了其施工工艺,通过逐级加载程序对支架基础预压效果进行检查及预压沉降观测数据分析等,确定支撑架的安全性,为后续施工提供借鉴和参考。This article takes the actual project of the Wenling Railway Station Super Large Bridge on the Taizhou City Railway as an example,and combines the experience of pre pressing the 35m simply supported box beam bracket to introduce its construction technology.This article checks the preloading effect of the support foundation and analyzes the preloading settlement observation data through a step-by-step loading program to determine the safety of the support frame and provide reference for subsequent construction.

关 键 词：市域铁路 现浇箱梁 支架预压 预拱度 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]