Rigid-flexible composite steel bridge deck pavement structure and pavement method thereof

Abstract

The invention belongs to the technical field of bridge deck pavement and particularly relates to a rigid-flexible composite steel bridge deck pavement structure and a pavement method thereof. The rigid-flexible combined type steel bridge deck pavement structure comprises RAC-10 high-strength cold-mixed epoxy resin concrete and LGA-10 gradient functional pouring type asphalt concrete from top to bottom. The pavement structure is advantaged in that density difference between the light aggregate and the common aggregate and density difference between the light aggregate and the cementing materialare utilized by a lower surface layer, so the light aggregate and the common aggregate are enriched on a top surface and a bottom surface of the pavement respectively, interlayer shear resistance isenhanced, and the deformation compliance is fully exerted; by adopting the gradient functional pouring type asphalt concrete and the high-strength cold-mixed epoxy resin concrete, the thickness of thesteel bridge deck pavement can be increased by 1-3cm under the condition that a constant load is kept unchanged, so aims of improving the bridge deck pavement rigidity and improving the pavement stress are fulfilled.

Description

technical field [0001] The invention belongs to the field of steel bridge deck pavement, and in particular relates to a rigid-flexible composite steel bridge deck pavement structure and a pavement method thereof. Background technique [0002] In recent years, with the vigorous development of the domestic transportation industry, the number of bridges has increased year by year. At the same time, the bridges built in the early stage have entered the aging stage, and more and more bridges need to be reinforced and reconstructed. In the process of reconstructing aging bridges, bridge deck pavement is one of the important factors affecting the quality of reconstruction. Compared with the subgrade pavement, the bridge deck pavement has more severe stress conditions, and needs better road performance to meet the durability requirements; The design impact is significant. Therefore, the bridge deck pavement pursues a thinner thickness to reduce its own dead load, but the thinner ...

AI Technical Summary

Problems solved by technology

Therefore, the bridge deck pavement is all pursuing a thinner thickness to reduce its own dead load, but the thickness of the bridge deck pavement is thinner, which will inevitably lead to a reduction in bearing capacity and durability