Steel box girder bridge deck pavement layer with high stability and high vibration resistance

Abstract

The invention relates to a steel box girder bridge deck pavement layer with high stability and high vibration resistance. The steel box girder bridge deck pavement layer comprises a steel plate (1), wherein a waterproof bonding layer (2), a modified epoxy resin structure glue layer (3), a polyester filament and geotechnical cloth combined layer (4), a first high-viscosity modified asphalt tack coat (5), a first high-viscosity modified polyester fiber mixed stone mastic asphalt mixture layer (6), a second high-viscosity modified asphalt tack coat (7) and a second high-viscosity modified polyester fiber mixed stone mastic asphalt mixture layer (8) are arranged on the upper surface of the steel plate (1) from bottom to top. The steel box girder bridge deck pavement layer has the advantages of improving the bonding strength of an asphalt concrete pavement layer and a bridge deck slab, and improving the combining performance of the asphalt concrete pavement layer and the bridge deck slab due to high strength, good elasticity and high toughness of a geotechnical cloth; the geotechnical cloth has good traction action on the whole bridge deck slab, and finally, the purposes that the bridge deck pavement layer is prevented from shearing fracture, the asphalt pavement is prevented from translation, upheaval and other diseases in a travelling process, and the stability and vibration resistance of the bridge deck slab are effectively improved are achieved.

Description

technical field [0001] The invention relates to the technical field of bridge deck pavement damage technology, in particular to a steel box girder bridge deck pavement with high stability and high anti-vibration performance. Background technique [0002] There are common defects in the current steel box girder deck pavement structure: under the action of traffic load, a large shear stress will be generated inside the asphalt concrete bridge deck pavement layer. Due to the poor bonding force between the asphalt concrete pavement and the bridge deck, under the action of repeated traffic loads, the pavement will have relative displacement and shear failure, and the asphalt pavement will be shifted, wrapped and other diseases. The pavement layer tends to harden and become brittle at low temperature, causing delamination between the pavement layer and the steel plate, and the pavement layer will also produce longitudinal and transverse cracks under load, with poor integrity and v...

AI Technical Summary

Problems solved by technology

[0002] There are common defects in the current steel box girder bridge deck pavement structure: under the action of traffic load, a large shear stress will be generated inside the asphalt concrete bridge deck pavement layer

However, the waterproof adhesive layer will be subjected to thermal shock during the paving of asphalt mixture, and will be punctured by the aggregate during rolling, and may be polluted, and the waterproof effect will be greatly reduced. At the same time, the waterproof adhesive layer and the bridge The bond strength of the panels will be significantly reduced

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