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肋腋板是在桥梁主结构桥面系形成的格框上装配的预制桥面板,其中区为平板,把边区的板厚减薄并用斜肋加劲形成格问,周边与拱肋(或梁)和横隔梁组合后构成四边受约束的双向板,板的长宽比为1.2～1.5,净矢跨比大于1/14。由于在结构上利用了薄膜效应,板形布局比较合理,各部位的材料得到较充分的利用,是一种较为合理可供作行车桥面的新板型。它已成功地应用在刚架拱和桁架拱桥上,并正在推广使用。板的最大跨度达到3.4米。
The rib plate is a prefabricated bridge deck assembled on the lattice frame formed by the deck of the bridge main structure, wherein the plate is a flat plate, the thickness of the border plate is thinned and stiffened by the oblique ribs to form a grid, the periphery is connected with the rib (or beam) And the combination of beams to form a four-sided constrained two-way board with an aspect ratio of 1.2-1.5 and a net sag ratio of greater than 1/14. As a result of the structural use of the film effect, plate layout is more reasonable, all parts of the material to be more fully utilized, is a more reasonable for a new type of bridge deck. It has been successfully applied to rigid frame arch and truss arch bridge, and is being widely used. Board maximum span of 3.4 meters.