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福建省“七五”重点交通建设项目—福州洪塘公路大桥于1990年12月建成通车。该桥总长1849.5米,有48孔,最大跨径120米,桥面净宽9米,两边各设1.5米人行道,设计荷载为汽—20、挂—100。这是一座设计新颖、技术先进、工艺复杂的现代桥梁,其下部基础全部采用钻孔灌柱桩;上部构造有四种类型:南北岸为预应力钢筋混凝土装配式 T 型简支梁、主航道跨径为60米+120米+60米,由两个下承式预应力钢筋混凝土三角桁架 T 构组成。这种结构综合了斜
Fujian Province “Seventh Five-Year” Key Traffic Construction Project - Fuzhou Hongtang Highway Bridge was opened to traffic in December 1990. The bridge has a total length of 1849.5 meters, 48 holes and a maximum span of 120 meters. The deck has a net width of 9 meters and 1.5 meters of sidewalks on both sides. The designed loads are steam-20 and hang-100. This is a modern design, advanced technology, complex process of the modern bridge, the lower part of the foundation of all the use of bored pile irrigation; the upper structure has four types: the North-South Bank prestressed concrete filled T-Beam, the main channel The span is 60m + 120m + 60m and consists of two T-shaped triangular trusses of prestressed reinforced concrete. This structure combines oblique