株洲清水塘大桥双层钢桁拱桥下部结构设计

摘要:

本文结合株洲清水塘双层桁架拱桥工程,详细分析讨论了主桥下部结构的设计要点,在水位落差大、阻水率要求高、船舶撞击作用、外形景观美观、拱桥施工工艺等外部条件限制下,对桥墩桩基承台布置、受力模式、构造细节等进行了深入研究,介绍了设计的方法和内容,总结归纳了特大跨径跨江桥梁下部结构设计经验。

Abstract:

Based on the structural design of Qingshuitang Bridge, which is a double-decker steel truss structure, some key points of the design about piers are discussed. Under complicated circumstance, such as high flood elevation, water blocking ratio, ship collision, construction methods and artistic, optimization of pile arrangement, pier structure and force analysis are introduced in detail. Experience of long span river-crossing bridge pier design is summarized for reference.