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福州闽江长门大桥是国内首次采用塔梁固结体系的混合梁斜拉桥,主跨为550m。简要介绍了本桥的建设条件、方案构思、桥型总体设计和具体结构设计,并针对钢混结合段位置、结构体系选取、塔梁固结部位局部应力分析、结构抗风和抗震性能等关键技术问题的研究论证做了简要介绍。
Fuzhou Minjiang Changmen Bridge is the first time in our country to use the hybrid system of tower girder cable-stayed bridge, the main span of 550m. This paper briefly introduces the construction conditions, project concept, overall design of bridge type and specific structural design of this bridge. In the light of the key points such as the location of steel and concrete mixing section, the selection of structural system, the local stress analysis of the consolidation site of the tower girder, the wind and seismic resistance of the structure Technical issues of research and feasibility studies made a brief introduction.