山区千米级大跨径拱桥缆索吊装系统结构设计  

Structural Design of Cable Hoisting System for Bridge with Main Span Exceeding 1000min Mountainous Areas

作　　者：尹涛 周陈 刘志鹏 张庆林 孙涛 YIN Tao;ZHOU Chen;LIU Zhi-peng;ZHANG Qing-lin;SUN Tao(CCCC-SHEC Second Highway Engineering Co.Ltd.,Xi’an 710119,China)

机构地区：[1]中交二公局第二工程有限公司,西安市710065

出　　处：《公路》2023年第12期107-117,共11页Highway

摘　　要：双堡特大桥地处重庆市武隆喀斯特地貌区,主桥设计采用双跨连续上承式钢管混凝土拱桥结构形式,为当世第一大跨径双跨连续拱桥。鉴于拱桥自身结构特点、施工场地、道路运输条件等实际情况,拱桥上部钢结构采用无支架缆索吊进行安装。重点从缆索吊系统参数选择和结构设计两个方面开展论证和分析,旨在为今后类似条件下的拱桥缆索吊施工设计提供借鉴经验。The Shuangbao Major Bridge is located in Wulong karst landform area of Chongqing.The main bridge is designed in the form of double-span continuous concrete-filled steel tube arch bridge,which is the world's largest double-span continuous arch bridge to date.In view of the structural characteristics of the arch bridge itself,construction site,road transportation conditions and other actual conditions,the upper steel structure of the arch bridge is installed by the cable crane without support.In the paper,demonstration and analysis are carried out in terms of cable crane system parameter selection and structural design in order to provide reference experience for the construction design of arch bridge cable crane under similar conditions in the future.

关 键 词：钢管混凝土拱桥 双堡特大桥 无支架缆索吊 结构设计 

分 类 号：U445.38[建筑科学—桥梁与隧道工程]