Composite resin concrete steel bridge deck pavement structure and construction method thereof

A resin concrete and composite resin technology, used in bridges, bridge parts, bridge construction, etc., can solve the problems of increased surface stress of pavement, fatigue cracking of steel structures, insufficient stiffness of steel bridge decks, etc., to increase the friction coefficient, reduce Stress amplitude, not easy to fall off

Inactive Publication Date: 2022-04-05
NINGBO ROABY TECH INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the steel bridge deck is prone to fatigue cracking due to insufficient rigidity or excessive deformation under the action of heavy load and overload, and the problem of delamination under the influence of shear stress and temperature change
For the cracking problem, the usual solution is to increase the elastic modulus of the pavement material on the steel plate surface or increase the thickness of the pavement layer, thereby reducing the deflection of the steel bridge deck, but the stress on the pavement surface will increase, resulting in cracks on the pavement surface, etc. disease

Method used

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  • Composite resin concrete steel bridge deck pavement structure and construction method thereof
  • Composite resin concrete steel bridge deck pavement structure and construction method thereof
  • Composite resin concrete steel bridge deck pavement structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0079] see figure 1 A steel bridge deck pavement structure provided in this embodiment comprises from bottom to top: a steel bridge deck 1, a resin waterproof adhesive layer 3, a resin concrete layer 4, a fiber material layer 5, and a gravel wear layer 6; Wherein, the reinforcement layer 2 is laid in the resin concrete layer 4 .

[0080] The reinforcing layer 2 is a steel mesh sheet, and / or, fiber material; laid in the middle of the resin concrete layer, it can be a single layer or a multi-layer setting. In a specific embodiment, the fiber material can be fiber cloth or It is fiber mesh, preferably glass fiber cloth; steel mesh and fiber material can be used in combination.

[0081] see figure 2 , the steel mesh is obtained by vertically equidistant distribution of longitudinal and horizontal steel bars, and the junction is usually fixed by binding; according to different road surface requirements, the thickness of the resin concrete layer 4, and other different actual cond...

no. 2 example

[0088] This embodiment provides a construction method for a composite resin concrete steel bridge deck pavement structure, comprising the following steps:

[0089] S10: Perform shot blasting and derusting treatment on the steel bridge deck to make the surface roughness reach 50 microns to 100 microns.

[0090] S20: Arrange reinforcement mesh sheets above the steel bridge deck, and use pads to control its height;

[0091] Coating the resin waterproof adhesive on the surface of the steel bridge deck needs to be completed within 2 to 4 hours after the steel bridge deck is shot blasted to form a resin waterproof adhesive layer; the amount of the resin waterproof adhesive is 0.1 kg / m2 to 1.0 kg / m2.

[0092] S30: paving resin concrete on top of the resin waterproof adhesive layer, and wrapping the reinforcement mesh to form a resin concrete layer; wherein, the resin concrete includes aggregates and binders.

[0093] Preferably, steel fibers are added to the resin concrete for rein...

no. 3 example

[0104] In this embodiment, the beneficial effect of the technical solution provided by the present invention will be demonstrated in combination with specific experimental data.

[0105] Specimen 1 includes the following structure from bottom to top: steel bridge deck, resin waterproof bonding layer, and resin concrete layer.

[0106] Specimen 2 includes the following structure from bottom to top: steel bridge deck, resin waterproof adhesive layer, and resin concrete layer; wherein, the resin concrete layer is reinforced with steel fibers.

[0107] Specimen 3 includes the following structure from bottom to top: steel bridge deck, resin waterproof adhesive layer, and resin concrete layer; among them, steel mesh is added in the middle of the resin concrete layer.

[0108] Specimen 4 includes the following structure from bottom to top: steel bridge deck, resin waterproof bonding layer, resin concrete layer, and fiber material layer.

[0109] For the construction methods of test ...

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Abstract

The invention provides a composite resin concrete steel bridge deck pavement structure and a construction method thereof. The steel bridge deck pavement structure comprises a steel bridge deck slab, a resin waterproof bonding layer and a resin concrete layer. Wherein a reinforcing layer is laid in the resin concrete layer. And the reinforcing layer is a reinforcing mesh, and / or a fiber material, and / or gravel particles. According to the technical scheme provided by the invention, the reinforcing layer is additionally arranged in the resin concrete, so that the overall strength is improved; meanwhile, the steel bridge deck slab and the resin concrete layer are connected through the resin waterproof bonding layer, so that the bonding strength of the steel bridge deck slab and the resin concrete layer is higher, and the shear resistance of the steel bridge deck slab and the resin concrete layer is remarkably improved.

Description

technical field [0001] The invention relates to the field of steel bridge deck pavement, in particular to a composite resin concrete steel bridge deck pavement structure and a construction method thereof. Background technique [0002] With the development of orthotropic steel bridge deck technology and the continuous expansion of its application in modern bridges, steel deck pavement technology has become an indispensable part of bridge design. Steel bridge deck pavement has become an important factor affecting bridge durability and driving comfort. [0003] At present, the mainstream steel bridge deck pavement materials at home and abroad are mainly hot-mix asphalt concrete or modified dense-graded asphalt concrete, high-temperature mixing and pouring asphalt concrete, modified asphalt SMA and epoxy asphalt concrete. Although the price of hot-mix asphalt concrete or modified dense-graded asphalt concrete is low, its road performance on steel bridge decks is seriously insuf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/08E01D19/12E01D21/00
CPCE01D19/083E01D19/125E01D21/00
Inventor 徐斌徐速尤其
Owner NINGBO ROABY TECH INDAL GROUP
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