特大斜拉桥超宽主梁桥面吊机提升悬臂拼装技术  

Cantilever Erection Technology for Lifting the Super Wide Main Beam of Super Large-span Cable-stayed Bridge Using Deck Crane

作　　者：何文生 杨海昌 徐小怀 喻加彪 刘禹浩 HE Wen-sheng;YANG Hai-chang;XU Xiao-huai;YU Jia-biao;LIU Yu-hao(China Shipbuilding Ninth Design&Research Institute Engineering Co.,Ltd.,Shanghai 200090,China)

机构地区：[1]中船第九设计研究院工程有限公司,上海200090

出　　处：《价值工程》2024年第23期68-71,共4页Value Engineering

摘　　要：本文以湘潭市杨梅洲特大斜拉桥为工程背景,对桥面吊机提升施工工艺进行了分析,包括施工流程、桥面吊机参数与布置、提升工况分析、前支点加强及后锚点结构设计,阐述了动静载试验、提升施工步骤、提升关键结构件应力监测等提升过程控制要点;提出了梁段悬臂拼装线形控制措施,为类似工程的钢桥提升与悬臂拼装提供借鉴。This article takes the Yangmeizhou Extra Large Cable stayed Bridge in Xiangtan City as the engineering background,and analyzes the construction technology of the bridge deck crane lifting,including the construction process,parameters and layout of the bridge deck crane,analysis of lifting conditions,strengthening of the front support point and design of the rear anchor point structure.It elaborates on the key control points of the lifting process,such as dynamic and static load tests,lifting construction steps,and stress monitoring of key structural components;The linear control measures for cantilever erection of beam segments are put forward,which can provide reference for steel bridge lifting and cantilever erection in similar projects.

关 键 词：钢箱梁 桥面吊机提升 悬臂拼装 线形控制 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]