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沈阳市棋盘山鸟岛桥主桥为跨径100 m+100m的独塔对称混凝土斜拉桥,采用造型美观的双向倾斜塔柱结构。文中介绍了该桥的设计方案构思,重点介绍了该桥提高对称独塔斜拉桥刚度问题的设计方法,为斜拉桥桥塔造型设计提出了新的结构型式,并介绍了该桥施工中的一些关键问题。
The main bridge of Qiaobeiyan Bird Island Bridge in Shenyang City is a single-tower symmetrical concrete cable-stayed bridge with a span of 100 m and a height of 100m. It adopts the attractively-designed two-way inclined tower structure. The design concept of the bridge is introduced in this paper. The design method of the bridge to improve the stiffness of the symmetrical single-pylon cable-stayed bridge is introduced. A new structure type is proposed for the design of the cable-stayed bridge. The construction of the bridge is also introduced Some of the key issues.