大型斜拉桥钻石型塔柱下横梁支架设计与施工  

Design and Construction of Lower Beam Support under Diamond Tower Column in Large Cable-Stayed Bridge

作　　者：彭昆 Peng Kun

机构地区：[1]保利长大工程有限公司,广州510620

出　　处：《建筑技术开发》2020年第17期118-120,共3页Building Technology Development

摘　　要：珠海市洪鹤大桥洪湾水道主航道桥为双塔双索面叠合梁斜拉桥,采用半漂浮体系,全长970 m。主塔塔高153.6 m,采用钻石型钢筋混凝土结构,并设置1道下横梁,下横梁为预应力混凝土结构,塔梁同步施工。介绍了钻石型塔柱下横梁支架构造及受力分析,对其设计与施工进行全面阐述。The main channel bridge of Hongwan waterway of Honghe Bridge in Zhuhai City is a double-tower cable-stacked cable-stayed bridge with a semi-floating system with a total length of 970 m.153.6 m,the main tower height is used as a diamond-shaped reinforced concrete structure,and a lower beam is set up,the lower beam is a prestressed concrete structure,and the tower beam is constructed synchronously. Combined with this project,the design and construction of the beam under the diamond tower column are introduced.

关 键 词：洪鹤大桥 钻石型塔柱 下横梁支架设计 落地式垂直管桩 

分 类 号：TU74[建筑科学—建筑技术科学] U448.27[建筑科学—桥梁与隧道工程]