Steel-concrete composite bridge deck slab adopting concrete beam bin division pouring and construction method thereof: Fid-Bau Portal

Steel-concrete composite bridge deck slab adopting concrete beam bin division pouring and construction method thereof

WU QINGXIONG / CHEN KANGMING / WANG QU / YANG YILUN

The invention belongs to the technical field of bridge engineering, and particularly relates to a steel-concrete composite bridge deck slab adopting concrete beam bin division pouring and a construction method thereof. By arranging the transverse precast concrete beams, the longitudinal precast concrete beams, the transverse and longitudinal reinforcing meshes and the shear keys on the bottom steel plate, the effect of effectively manufacturing the steel-concrete composite bridge deck slab is achieved. The construction method of the steel-concrete composite bridge deck slab is simple and flexible and can be carried out step by step, compared with an existing integral pouring type steel-concrete composite bridge deck slab, the steel-concrete composite bridge deck slab further has the advantages of being small in shrinkage amount in the longitudinal and transverse bridge directions, low in bridge deck slab cracking risk and high in durability, and high-performance concrete is used as well. The problems that during construction, severe reinforcement is needed, and high-temperature steam curing is needed can be solved.

本发明属于桥梁工程技术领域，尤其涉及一种采用混凝土梁分仓浇筑的钢混组合桥面板及其施工方法。本发明通过在底钢板上设置横向预制混凝土梁、纵向预制混凝土梁、横纵向钢筋网以及剪力键的方式，达到有效制得钢混组合桥面板的效果。本发明具有钢混组合桥面板的施工方法简单灵活，可分步进行，且相较于现有的整体浇筑式钢混组合桥面板，还具有纵、横桥向的收缩量较小，桥面板开裂风险低，以及耐久性高的优点，而且同样是使用了高性能混凝土，本发明可以避免施工时需要重度配筋、需要高温蒸汽养护的问题。

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