Orthotropic steel plate-concrete composite bridge deck and construction method thereof

Abstract

The invention provides an orthotropic steel plate-concrete composite bridge deck and a construction method thereof. The composite bridge deck comprises orthotropic steel plates, a reinforcement mesh and a concrete structure layer, wherein the orthotropic steel plates include a steel bottom plate and a plurality of T-shaped steel sections; the plurality of T-shaped steel sections are arranged at intervals on the upper surface of the steel bottom plate along a longitudinal direction of a bridge; the reinforcement mesh is paved above flanges of the T-shaped steel sections; and a plurality of flange baffle plates are also welded on the upper surface of the steel bottom plate. During working, the concrete structure layer and the orthotropic steel plates are cooperatively stressed. The construction method of the composite bridge deck comprises the steps of processing the orthotropic steel plates, hoisting the orthotropic steel plates, paving the reinforcement mesh, pouring the concrete structure layer and the like. The composite bridge deck increases the bending resistance in a transverse direction of the bridge, reduces the thickness of the bridge deck, reduces the dead load, enhances the bending resistance of the bridge deck in the transverse direction of the bridge as well as the overall crossing capacity of a main body of the bridge, reduces the manufacturing cost, improves the durability of the structure, and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to an orthotropic bridge deck structure and a construction method thereof. Background technique [0002] The bridge deck is an important component that transmits various loads on the bridge surface to the main girder, directly bears the repeated action of the wheel load, and is one of the vulnerable parts of the bridge structure. At present, the bridge decks commonly used in engineering are divided into three types: concrete bridge decks, steel bridge decks and steel-concrete composite bridge decks. [0003] Concrete bridge deck has the advantages of high rigidity and low cost, but due to its heavy weight, low construction efficiency, and easy cracking, it is not economical when used in long-span bridges, mainly in small and medium-span bridges or projects with loose construction period requirements application. Due to the advantages of light weight, high strength and f...

AI Technical Summary

Problems solved by technology

However, welding is required between the composite bridge deck and the girder web. For composite girder bridges with a high degree of assembly construction, the construction method that the main girder can be hoisted separately from the bridge deck, and then combined after the two are in place is very important. Important; at the same time, because the force of the bridge deck is more unfavorable than that of the bridge, the traditional steel-concrete composite bridge deck needs to be equipped with a large number of beams to ensure the safety of the bridge deck

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