自锚式悬索桥发展现状与施工技术创新

Development Present Status of Self-anchored Suspension Bridge and Its Innovative Construction Technologies

系统地介绍了近年来自锚式悬索桥在国内外的发展情况,从主跨跨径、加劲梁结构、主缆形式、施工工艺等方面进行了技术总结。以世界首座主跨600 m且承载双线城市轨道交通的自锚式悬索桥——重庆鹅公岩轨道专用桥为实例,总结了该桥的设计和施工特点,并重点介绍了该桥采用斜拉法建造的施工工艺和技术,为跨越航运繁忙河道的自锚式悬索桥建设提供参考。

The developments of self-anchored suspension bridges at home and abroad in recent years were systematically introduced,and the main span,stiffening girder structure,main cable form and construction technology were summarized.Taking the world's first self-anchored suspension bridge with main span of 600m and bearing double lines urban rail transit-Chongqing Egongyan track special bridge as an example,the design and construction characteristics of the bridge were carried out,and the construction technique and technology of cable-stayed method were mainly introduced.The paper can provide reference for the construction of self-anchored suspension bridge across the busy shipping channel.