荆州长江大桥主跨PC斜拉桥设计计算分析

The Design, Calculation and Analysis of the Main Span of the PC Cable-stayed Jingzhou Changjiang River Bridge

荆州长江公路大桥北汊通航孔桥为主跨 5 0 0mPC斜拉桥 ,设计计算分析十分复杂 ,着重介绍了斜拉桥合理成桥状态的确定方法和步骤以及与此密切相关的结构整体静力分析计算和施工计算 ,对其他局部结构设计计算要点也作了说明。提出合理成桥状态确定方法和结构施工方案 。

The north branch bridge of the Jingzhou Changjiang River Bridge is designed to be a cable stayed bridge with a main span of 500 m. There must be a complex analysis in the design. The method and the main steps of the determination of a reasonable structural condition are specially introduced. Other necessary analysis in the design is also mentioned. The method introduced may be useful to other engineers.