天津滨海海河大桥总体设计

天津海河大桥是天津海滨高速集疏港公路二期中段工程的重要节点,主桥采用独塔双索面混合梁斜拉桥,主塔采用钻石型塔,主跨采用正交异性桥面板钢箱梁,边跨为预应力混凝土连续箱梁,跨径布置为310+2×50+2×40m。新建的海河大桥与现状海河大桥呈反对称布置。既满足了疏港功能要求,又兼顾了整体景观需要。介绍了该桥总体设计概况,以及设计中各项关键技术要点。

Tianjin Binhai River bridge overall design

Tianjin Haihe Bridge is an important node in the middle section of the second phase of Tianjin Coastal Expressway Jishugang Road. The main bridge adopts single-tower double-cable-plane mixed-beam cable-stayed bridge, the main tower adopts diamond tower, the main span adopts orthogonal-bridge panel steel box girder, the side span is prestressed concrete continuous box girder, and the span arrangement is 310+2×50+2×40m. The new Haihe River Bridge and the existing Haihe River Bridge are antisymmetric. It not only meets the function requirements of port evacuation, but also takes into account the overall landscape needs. This paper introduces the general design of the bridge and the key technical points in the design.