Steel bridge deck pavement structure

Abstract

The utility model relates to steel bridge deck paving technical field, specifically disclose a steel bridge deck paving layer structure, including anticorrosive layer, waterproof bonding layer, protective layer and wearing layer that are sequentially laid on the steel bridge deck, high molecular prefabricated section bar layer is also laid between the protective layer and the wearing layer, the high molecular prefabricated section bar layer is formed by the splicing of several hard high molecular section bar boards, the high molecular section bar board with the protective layer and wearing layer all are through the adhesive bonding, the utility model uses high molecular prefabricated section bar to replace the broken stone and lay between the protective layer and the wearing layer, both strengthen the bridge deck strength, prevent wearing layer collapse, and the load of steel bridge deck is alleviated, prolongs the life of steel bridge deck.

Description

Technical Field

[0001] This utility model relates to the field of steel bridge deck paving technology, and in particular to the structure of steel bridge deck paving layers. Background Technology

[0002] Heavy-load bridge sections, such as urban expressways, highway mainlines, and industrial heavy-load bridge decks, bear high volumes of heavy vehicle loads over long periods, placing high demands on pavement strength. The fatigue performance of the asphalt pavement layer directly affects the final performance and service life of the steel bridge deck pavement. Existing steel bridge deck pavement structures typically consist of an anti-corrosion layer, a waterproof bonding layer, a protective layer, and a wearing layer laid sequentially on the steel bridge deck. Both the protective and wearing layers are formed by asphalt concrete pouring, and pre-mixed asphalt aggregate is spread between the protective and wearing layers. Due to the susceptibility of asphalt to deformation under heat and pressure, asphalt collapse is prone to occur on the bridge deck in hot weather, affecting driving safety. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide a steel bridge deck pavement structure.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] The steel bridge deck pavement structure includes an anti-corrosion layer, a waterproof adhesive layer, a protective layer, and a wear layer laid sequentially on the steel bridge deck. A precast polymer profile layer is also laid between the protective layer and the wear layer. The precast polymer profile layer is formed by splicing together several rigid polymer profile plates. The polymer profile plates are bonded to the protective layer and the wear layer by adhesives.

[0006] Furthermore, the thickness of the anti-corrosion layer is 0.1-0.15mm, the thickness of the waterproof adhesive layer is 0.15-0.2cm, the thickness of the protective layer is 3.5-4cm, the thickness of the polymer prefabricated profile layer is 1.5-2cm, and the thickness of the wear layer is 4-4.5cm.

[0007] Furthermore, the upper and lower end faces of the polymer profile plate are evenly distributed with anti-slip protrusions.

[0008] The beneficial effects of this utility model are as follows: by using precast polymer profiles instead of traditional premixed crushed stone, the strength of the bridge deck can be enhanced and the collapse of the wear layer can be prevented. In addition, the load on the steel bridge deck can be reduced and the service life of the steel bridge deck can be extended. Attached Figure Description

[0009] Fig. 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0010] Fig. 2 This is a schematic diagram of the splicing of polymer profile panels.

[0011] Explanation of the attached drawing numbers: 1. Steel bridge deck; 2. Anti-corrosion layer; 3. Waterproof adhesive layer; 4. Protective layer; 5. Polymer prefabricated profile layer; 51. Polymer profile plate; 511. Anti-slip protrusion; 6. Wear layer. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0013] like Figs. 1-2 As shown, the steel bridge deck pavement structure includes an anti-corrosion layer 2, a waterproof adhesive layer 3, a protective layer 4, a polymer prefabricated profile layer 5, and a wear layer 6, which are sequentially laid on the steel bridge deck 1. Among them, the anti-corrosion layer 2 is an epoxy zinc-rich paint coating with a thickness of 0.1 mm, the waterproof adhesive layer 3 is methacrylic resin with a thickness of 0.2 cm, the protective layer 4 is cast-in-place asphalt concrete with a thickness of 3.5 cm, the polymer prefabricated profile layer 5 is formed by splicing several rigid polymer profile plates 51, specifically, the polymer profile plate 51 is a polyphenylene sulfide plate with a thickness of 2 cm, and the wear layer 6 is asphalt mastic gravel with a thickness of 4 cm. The polyphenylene sulfide plate is bonded to the protective layer 4 and the wear layer 6 with epoxy resin adhesive.

[0014] Using precast polymer profiles instead of traditional premixed crushed stone can, firstly, enhance the strength of the bridge deck and prevent the wear layer 6 from collapsing, and secondly, reduce the load on the steel bridge deck 1 and extend its service life.

[0015] In this embodiment, anti-slip protrusions 511 are evenly distributed on the upper and lower end faces of the polymer profile plate 51, which enhances the friction between the polymer prefabricated profile plate and the protective layer 4 and the wear layer 6.

[0016] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel bridge deck pavement structure, comprising an anti-corrosion layer (2), a waterproof adhesive layer (3), a protective layer (4), and a wear-resistant layer (6) sequentially laid on a steel bridge deck (1), characterized in that, A polymer prefabricated profile layer (5) is also laid between the protective layer (4) and the wear layer (6). The polymer prefabricated profile layer (5) is formed by splicing several rigid polymer profile plates (51). The polymer profile plates (51) are bonded to the protective layer (4) and the wear layer (6) by adhesive.

2. The steel bridge deck (1) pavement layer structure according to claim 1, characterized in that, The anti-corrosion layer (2) has a thickness of 0.1-0.15 mm, the waterproof adhesive layer (3) has a thickness of 0.15-0.2 cm, the protective layer (4) has a thickness of 3.5-4 cm, the polymer prefabricated profile layer (5) has a thickness of 1.5-2 cm, and the wear layer (6) has a thickness of 4-4.5 cm.

3. The steel bridge deck (1) pavement layer structure according to claim 1, characterized in that, The upper and lower end faces of the polymer profile plate (51) are evenly distributed with anti-slip protrusions (511).

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