上承式钢筋混凝土箱型拱桥主拱圈施工技术  

Construction Technology for the Main Arch Ring of a Deck Reinforced Concrete Box Arch Bridge

作　　者：刘云飞 LIU Yun-fei(Tianmen City Highway Flood Control,Disaster Relief and Rescue Center,Tianmen 431700,China)

机构地区：[1]天门市公路防汛救灾抢险中心,天门431700

出　　处：《建材世界》2023年第6期119-123,共5页The World of Building Materials

摘　　要：以天门大桥拆除新建工程为背景,介绍了上承式钢筋混凝土箱型拱桥主拱圈施工及监控技术。详细阐述了主拱圈从支架基础施工到混凝土浇筑完成后拆除支架和模板的施工全过程,同时从线形控制与混凝土应力-应变测量两个方面介绍了主拱圈施工监控这一关键技术,以探讨保证拱桥施工过程中主拱圈的质量和安全的方法。Taking the demolition and construction of the Tianmen Bridge as the background,this paper introduces the construction and monitoring technology of the main arch ring of the deck reinforced concrete box arch bridge.This article elaborates on the entire construction process of the main arch ring from the construction of the support foundation to the removal of the support and formwork after the completion of concrete pouring.At the same time,it introduces the key technology of main arch ring construction monitoring from two aspects:linear control and concrete stress-strain measurement,in order to explore methods to ensure the quality and safety of the main arch ring during the construction process of the arch bridge.

关 键 词：箱型拱桥 主拱圈 线形控制 应力-应变测量 施工监控 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]