300m主跨钢箱系杆拱桥整体顶推施工力学性能研究  

Research on Mechanical Property of 300 m Main Span Steel Box Tied Arch Bridge in Integral Incremental Launching Construction

作　　者：陶重民 TAO Zhongmin(Anhui Transport Consulting&Design Institute Co.,Ltd.,Hefei 230088,Anhui,China)

机构地区：[1]安徽省交通规划设计研究总院股份有限公司,安徽合肥230088

出　　处：《工程技术研究》2024年第21期28-30,共3页Engineering and Technological Research

摘　　要：顶推施工因具备对航道及桥下空间影响较小、施工便捷等优点,在大跨度桥梁施工中得到了广泛应用。其中,钢箱系杆拱桥整体顶推施工由于将拱梁临时连接后同步顶推到位,无须应用大型吊装设备,在大跨度钢箱系杆拱桥施工中具有较强的竞争力。文章通过研究300 m主跨钢箱系杆拱桥整体顶推施工中的力学性能,旨在为拱肋系梁设计提供参考,为施工临时结构设计提供依据。Incremental launching construction has been widely used in the construction of large-span bridges because of its advantages of less influence on the channel and the space under the bridge and convenient construction.Among them,steel box tied arch bridge integral incremental launching construction has strong competitiveness in the construction of large-span steel box tied arch bridge because of the synchronous incremental launching in place after the temporary connection of the arch beam without using large hoisting equipment.This paper studies the mechanical properties of 300 m main span steel box tied arch bridge in integral incremental launching construction,aiming to provide reference for the design of arch rib tie beam and provide basis for the design of temporary structure.

关 键 词：钢箱系杆拱桥 顶推施工 临时撑杆内力 

分 类 号：U441[建筑科学—桥梁与隧道工程]