S形曲线双斜塔斜拉桥的总体设计及技术特点

Overall Design and Technical Characteristics of S-shaped Curved Double Inclined Pylon Cable-stayed Bridge

摘要:

崇明环岛景观道一期工程鸽龙港闸外桥主桥是一座跨径布置为（75+150+75）m的S形曲线双斜塔斜拉桥，主梁采用扁平钢箱梁，主塔为人字形斜钢塔。详细介绍了主桥的总体设计方案、结构的受力特点以及主桥设计的关键技术，对类似的斜拉桥设计提供了有益的参考。

Abstract:

In the Chongming Island landscape Road Phase I Project, the main bridge of Gelong Port Gate Bridge is an S-shaped curved double leaning pylon cable-stayed bridge with a span arrangement of (75+150+75) m. Its main girder is a flat steel box girder, and its main pylon is a herringbone-shaped inclined steel pylon. The overall design scheme of the main bridge, the force characteristics of the structure and the key technology of the main bridge are introduced in detail, which provides the useful reference for the design of similar cable-stayed bridges.