跨既有桥梁架桥机架设钢箱梁技术  

TECHNOLOGY OF ERECTING STEEL BOX GIRDER ACROSS THE EXISTING BRIDGE WITH BRIDGE ERECTING MACHINE

作　　者：李维安 LI Wei-an(Ningbo Municipal Engineering and Construction Group Co.,Ltd.,315002,Ningbo,Zhejiang,China)

机构地区：[1]宁波市政工程建设集团股份有限公司,浙江宁波315002

出　　处：《建筑技术》2023年第7期801-803,共3页Architecture Technology

摘　　要：嘉兴市区中环快速路新建高架龙凤桥通过利用既有的预应力混凝土梁桥作为临时支架承重平台,合理设计吊装块段、吊装顺序和临时支架,架桥机架设钢箱梁,解决了新建龙凤桥受桥位空间限制传统吊装方式难以完成施工的难点,有效降低了施工风险及施工成本,缩短了施工周期,为今后类似架设钢箱梁桥施工技术提供参考。For the new Longfeng Overpass of the central expressway in Jiaxing,the existing prestressed concrete girder bridge is used as a temporary support bearing platform,the hoisting sections,hoisting sequence and temporary support are designed rationally,and the steel box girder is erected with a bridge erecting machine.This solves the problem that the conventional hoisting cannot be performed easily as a result of spatial restraints of the new Longfeng Overpass,effectively reduces construction risks and construction costs,and shortens the construction period,thus providing a reference for the construction of similar steel box girder bridges in the future.

关 键 词：跨既有桥梁 架桥机 钢箱梁 

分 类 号：TU112.4[建筑科学—建筑理论]