旗门港大桥总体设计

General Design of the Main Bridge of Qimen Port Bridge

基于桥位处地形、水文地质、通航要求等建设条件,确定旗门港大桥的总体桥型方案、景观设计等,结合主桥总体布置特点介绍了结构体系的选择以及塔、梁、索等主要构造设计,并重点分析了塔上拉索锚固方案的选择、高潮差条件下索塔基础的防撞、跨海大桥涉海洋性环境下的防腐耐久性设计等关键性问题,并提出了相应的设计对策,以供同类桥梁设计参考。

Based on the topography, hydrogeology, navigation requirements and other construction conditions of the bridge site, the overall bridge type scheme and landscape design of Qimen Port Bridge are determined. Combined with the overall layout characteristics of the main bridge, the selection of structural system and the main structural design of tower, beam and cable are introduced. The key problems are analyzed such as the selection of anchoring scheme for cable on tower, the anti-collision of bridge tower foundation under the condition of high tide difference, and the anti-corrosion durability design under the marine environment crossing sea bridge, and the corresponding design countermeasures are put forward for reference of similar bridge design.