复杂环境下市政立交改扩建工程的实例研究

The Case Study of Expansion Project of Municipal Interchange Under Complicated Environment

结合昆明市主城二环系统改扩建(福海立交)工程设计实例,详细介绍福海立交改扩建工程的立交选型、桥梁孔跨结构以及小半径大跨度连续钢箱梁设计与施工等关键技术。

With the design example of expansion project of Kunming＇s second ring road,this paper detailed introduces the key technology of Fuhai interchange project,including the type selection of interchange,the type of bridge span structure,the design and construction of long-span continuous steel box beem of small radius.