Steel bridge deck pavement structure with reinforced construction

Abstract

Provided is a steel bridge deck pavement structure with reinforced construction. The steel bridge deck pavement structure is jointly composed of a prefabricated reinforced steel plate (1), an anticorrosion layer (2), a waterproof layer (3), a lower surface layer (4), a fiber grid (5) and an upper surface layer (6) from bottom to top, and is characterized in that the top surface of the prefabricated reinforced steel plate (1) is provided with the reinforced construction, the fiber grid (5) is composed of longitudinal grid ribs (51) and transverse grid ribs (52) in a mutual interlaced mode, theinteriors of the lower surface layer (4) and the upper surface layer (6) are mixed with reinforced short fibers, and the fiber grid (5) is poured between the lower surface layer (4) and the upper surface layer (6) or into the upper surface layer (6), and achieves common working with the lower surface layer (4) and the upper surface layer (6) through surface construction. The steel bridge deck pavement structure with the reinforced construction has a good interlayer bonding performance, and can effectively prevent the risk of interlayer cracking and pavement layer fatigue cracking, meanwhile, through a novel prefabricated reinforced steel plate mode, the construction technology is simplified, the construction efficiency is greatly improved, the production installment cost is saved, the building cost of projects is reduced, and the normal use and durability needs of a bridge structure can be met.

Description

technical field [0001] The invention relates to the technical field of bridge pavement structures, in particular to a steel bridge deck pavement structure with reinforced structure. Background technique [0002] The bridge deck structure of highway steel bridge is mainly composed of steel bridge deck and bridge deck pavement. It is the main structure that directly bears the wheel load on the bridge and transmits it to the main beam. It is also one of the most vulnerable parts of the bridge structure. The surface course of the current steel bridge deck pavement structure is mostly the asphalt surface course formed by asphalt pavement materials. Stress and deformation are very complex, asphalt pavement materials have low tensile, shear and compressive strengths, and there are defects such as vertical and horizontal pushing and cracking, and the gap between the steel bridge deck pavement and the steel bridge deck is easy to produce slip. [0003] Existing steel bridge decks g...

AI Technical Summary

Problems solved by technology

However, the height of the shear key in the conventional shear structure is large, resulting in an increase in the thickness of the steel bridge pavement layer, which causes an increase in the dead load of the bridge deck and reduces the economy.

At the same time, the construction of the shear key needs to be equipped with special construction equipment and personnel, and the process is cumbersome, resulting in a decrease in the construction efficiency of the steel bridge deck pavement

In view of the problems existing in the above shear structure, at present, cable-stayed steel mesh has been used to replace the traditional shear structure, such as the steel bridge deck composite pavement structure containing cable-stayed steel wires published in Chinese Patent No. "2016202824617", but The dead load of the steel bridge deck is still very large, and the construction process is cumbersome, and it is not suitable for long-span flexible bridges that are sensitive to the self-weight of the bridge

These requirements restrict and influence each other, making the structural design of steel bridge deck pavement extremely difficult and unable to meet all the above requirements

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