大跨度单索面帆形塔斜拉桥设计关键技术

Key Technology of the Construction of a Large Span Cable Stayed Bridge with Sail-shaped Towers and Single Cable Plane

以宁波大榭第二大桥为背景,介绍特大跨度单索面斜拉桥在设计过程中遇到的重点和难点问题,研究探讨了这种特殊结构斜拉桥在桥跨的总体设计方面、主梁抗扭刚度方面、梁体抗倾覆方面、主塔和主梁的抗风性能方面、特殊桥塔设计方面遇到的困难和解决方案。

In this paper Daxie second bridge as the background, major and difficult issues King Span Single Cable Plane Cable- Stayed encountered in the design process, this study examines the special structure of cable-stayed bridge across the overall design, the main beam torsional stiffness, resistance to overturning aspect beam, wind performance pylon and main girder, special bridge tower design and manufacturing difficulties encountered and solutions.