【摘要】 对江湾大桥主桥的设计理念和方案进行了总结。在初步设计阶段,江湾大桥主桥拟定采用主跨180 m左右三种类型多方案,最后确定采用独塔拱塔式双索面钢混组合梁斜拉桥结构。主桥主跨采用钢箱梁,边跨采用预应力混凝土箱梁,桥梁总宽44.5 m,双向8车道+人非道。最后对溶洞勘察方法和成果进行了介绍。有关设计思路和经验可供相关设计人员借鉴和参考。更多还原

【Abstract】 The article summarizes the design concept and scheme of the main bridge of Jiangwan Bridge. In the preliminary design period, three schemes of about 180-mm span are proposed for the main bridge of Jiangwan Bridge. Finally, the single-pylon arched-pylon double-plane steel-concrete composite girder cable-stayed bridge is determined to use. The steel box girder is used for the main span of the main bridge,and the pre-stressed concrete box girder is used for the side span. The total width of bridge is 44.5 m with double-way eight lanes + pedestrian and non-motored vehicle lanes. The article introduces the survey method and result of karst caves. The relative design thought and experience can be referred for the similar projects.更多还原