郑州黄河公铁两用桥公路箱梁预制场地布置方案研究  

Investigation of Site Layout Schemes of Precasting Yard for Roadway Box Girders of Zhengzhou Huanghe River Rail-cum-Road Bridge

作　　者：孙俊啟[1] 

机构地区：[1]中铁大桥局集团第一工程有限公司,河南郑州450053

出　　处：《世界桥梁》2010年第2期17-19,共3页World Bridges

摘　　要：郑州黄河公铁两用桥公铁合建段引桥公路上部结构为先简支后连续预应力混凝土箱梁,通过对箱梁预制梁场顺桥梁平行布置和垂直桥梁方向布置2种方案从投入的机械设备、施工经济性、方便快捷性等方面进行比选,以确定预制梁场布置方案。经比较,箱梁预制梁场最终采用垂直桥梁方向的布置方案,该方案箱梁预制场布置充分考虑地形情况,机械使用效率高,成本较小,满足施工需要,因地制宜,布局合理。The superstructure of the roadway approach bridge in the joint construction section of the roadway and railway of Zhengzhou Huanghe River Rail-cum-Road Bridge is of the prestressed concrete box girders that are firstly simply-supported and late made continuous.The site layout scheme of the precasting yard for the roadway box girders was selected and determined through comparison of the two kinds of the schemes of the precasting yard to be laid out in parallel with and vertically under the bridge in regard o...

关 键 词：箱形梁 预制梁场 布置方案 比选 

分 类 号：U445.471[建筑科学—桥梁与隧道工程]