高阳跨城庄铁路特大桥桥梁支座纠编施工技术

Deviation Correction Construction Technology for Bridge Support of Gaoyang Crossing Chengzhuang Railway Bridge

本文以丹大快铁高阳跨城庄铁路特大桥桥梁支座病害施工为背景,针对部分桥梁支座偏移量超标,更换病害支座施工为内容,详尽地论述了在既有线施工更换桥梁支座的前期调查、总体施工方案设计、顶升及混凝土局部承压受力分析、支座纠偏操作关键技术要点,处理方案、处理步骤、支座的拆除及安装等作业的具体内容。

This paper takes the construction of the bridge support of the Gaoyang crossing Chengzhuang Railway Bridge on the Dandong-Dalian High-speed Railway as the background.In view of the excessive displacement of some bridge supports and the replacement of diseased supports,this paper discusses in detail the specific contents of the key points of pre-investigation,overall construction scheme design,jacking and local bearing force analysis of concrete,and bearing rectification operation,the treatment scheme,the treatment steps,the removal and installation of the support for replacing bridge support in existing line construction.