Epoxy pavement structure for steel bridge deck of cable-stayed bridge

Abstract

The utility model relates to the technical field of pavement structures, and discloses a cable-stayed bridge steel bridge deck epoxy pavement structure which comprises a steel bridge deck, an anti-corrosion layer sprayed on the upper surface of the steel bridge deck, a filling layer laid on the upper surface of the anti-corrosion layer, a waterproof bonding layer sprayed on the upper surface of the filling layer, and a protective layer laid on the upper surface of the waterproof bonding layer. A bonding layer is sprayed on the upper surface of the protective layer, an epoxy wearing layer is laid on the upper surface of the bonding layer, a plurality of transverse embedded parts are embedded in the protective layer, water flowing parts communicated with the embedded parts are arranged on the two sides of the upper portion of the steel bridge deck, and the two symmetrical embedded parts obliquely extend towards the two sides of the steel bridge deck. According to the drainage structure, when rainwater permeates into the protective layer, the rainwater flows into the water flowing part through the inclined embedded part and is drained away through the water flowing part, and then the drainage effect after pavement of the steel bridge deck is completed is improved.

Description

An epoxy pavement structure for steel deck of a cable-stayed bridge Technical Field

[0001] This utility model relates to the field of paving structure technology, specifically to an epoxy paving structure for the steel deck of a cable-stayed bridge. Background Technology

[0002] A cable-stayed bridge is a highly statically indeterminate structure composed of three basic components: the main tower, the stay cables, and the main beam. According to the different materials used in the construction of cable-stayed bridges, they can be divided into: concrete cable-stayed bridges, steel cable-stayed bridges, hybrid beam cable-stayed bridges, and composite beam cable-stayed bridges.

[0003] A search revealed a patent, CN214459632U, which discloses a pavement structure for epoxy asphalt concrete steel bridge decks. This structure includes a bridge template, an adhesive layer, an epoxy asphalt concrete pavement layer, a waterproof layer, and a protective layer. The bridge template comprises a main body, raised blocks, a casting cavity, grooves, and inclined grooves. The raised blocks are located on the upper part of the main body, and a casting cavity is connected to the middle of the raised blocks and the upper part of the main body. Multiple transverse and longitudinal grooves are evenly distributed below the casting cavity, and these grooves are connected to the casting cavity. A pair of inclined grooves are symmetrically located on the upper sides of the raised blocks. The adhesive layer is located on both sides of the casting cavity, on the inner wall of the bottom of the casting cavity, on the upper side of the inclined grooves, and within the grooves. The epoxy asphalt concrete pavement layer is located within the casting cavity, on the side of the adhesive layer away from the inner wall of the casting cavity. A waterproof layer and a protective layer are sequentially located on top of the epoxy asphalt concrete pavement layer. Compared with traditional steel bridge deck pavement structures, this invention offers greater structural stability.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] Although the aforementioned comparative documents improve the overall stability of the pavement structure, in reality, after the pavement structure according to the aforementioned comparative documents is laid, the epoxy asphalt concrete pavement layer is poured into the casting cavity, resulting in poor drainage after the pavement is completed. Therefore, there is an urgent need in the field to improve the pavement structure of cable-stayed bridge steel bridge decks to solve the defects of the prior art. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this utility model provides an epoxy-based pavement structure for cable-stayed bridge steel decks, which improves the drainage effect after the steel bridge deck pavement is completed.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an epoxy pavement structure for a cable-stayed bridge steel deck, comprising a steel bridge deck, wherein the upper surface of the steel bridge deck is sprayed with an anti-corrosion layer, a filling layer is laid on the upper surface of the anti-corrosion layer, a waterproof adhesive layer is sprayed on the upper surface of the filling layer, a protective layer is laid on the upper surface of the waterproof adhesive layer, an adhesive layer is sprayed on the upper surface of the protective layer, an epoxy wear-resistant layer is laid on the upper surface of the adhesive layer, and a plurality of transverse embedded parts are pre-embedded in the protective layer. Water-carrying components communicating with the embedded parts are provided on both sides of the upper part of the steel bridge deck, and two symmetrical embedded parts extend obliquely towards both sides of the steel bridge deck.

[0008] Preferably, the side of the water-carrying component has a communication port that is compatible with the embedded component.

[0009] Preferably, when laying the protective layer, a reserved groove adapted to the embedded part is reserved, and a water guiding slope that is inclined and adapted to the reserved groove is reserved when laying the protective layer.

[0010] Preferably, a first step is reserved on both sides of the reserved groove, and a permeable cover plate with a water-permeable effect is laid on the first step.

[0011] Preferably, the upper part of the water-carrying component is provided with a second step, and a perforated cover plate is laid on the second step.

[0012] Preferably, the filling layer extends obliquely from the center of the steel bridge deck to both sides and is compatible with the waterproof adhesive layer.

[0013] Preferably, the epoxy wear layer extends from the center of the steel bridge deck to both sides and is adapted to the water-carrying components.

[0014] To address the shortcomings of existing technologies, this utility model provides an epoxy-based pavement structure for the steel deck of a cable-stayed bridge, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, when rainwater penetrates into the protective layer, the rainwater will flow through the inclined embedded part into the water-carrying part, and the water-carrying part will drain away the rainwater, thereby improving the drainage effect after the steel bridge deck is paved.

[0016] 2. In this utility model, when laying the protective layer, its upper surface is laid in an inclined shape, and the water guiding slope extends from the middle of the steel bridge deck to both sides of the steel bridge deck and gradually decreases. The water guiding slope guides the infiltrated rainwater to the embedded parts in the reserved groove, and the infiltrated rainwater can be quickly and centrally discharged into the water-carrying parts.

[0017] 3. In this utility model, the filling layer and waterproof adhesive layer laid in an inclined manner on both sides can quickly drain the rainwater that has seeped into the protective layer into the water-carrying component. The epoxy wear-resistant layer laid in an inclined manner on both sides can increase the speed at which rainwater flows into the water-carrying component and reduce the amount of rainwater seepage.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 is a partial cross-sectional view of the paving structure in this utility model;

[0021] Figure 2 is a cross-sectional view of the paving structure in this utility model from another position;

[0022] Figure 3 is a partial cross-sectional structural schematic diagram of the protective layer in this utility model;

[0023] Figure 4 is a magnified schematic diagram of the structure at point A in Figure 1;

[0024] Figure 5 is a magnified structural diagram of point B in Figure 2;

[0025] Figure 6 is a magnified structural diagram of point C in Figure 3.

[0026] In the diagram: 1. Steel bridge deck; 2. Anti-corrosion layer; 3. Filling layer; 4. Waterproof adhesive layer; 5. Protective layer; 6. Adhesive layer; 7. Epoxy wear layer; 8. Embedded parts; 9. Water-carrying parts; 10. Connecting opening; 11. Reserved groove; 12. Water guiding slope; 13. First step; 14. Seepage cover plate; 15. Second step. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please refer to Figures 1-6. An epoxy pavement structure for a cable-stayed bridge steel deck includes a steel bridge deck 1. The upper surface of the steel bridge deck 1 is coated with an anti-corrosion layer 2. A filling layer 3 is laid on the upper surface of the anti-corrosion layer 2. A waterproof adhesive layer 4 is sprayed on the upper surface of the filling layer 3. A protective layer 5 is laid on the upper surface of the waterproof adhesive layer 4. An adhesive layer 6 is sprayed on the upper surface of the protective layer 5. An epoxy wear layer 7 is laid on the upper surface of the adhesive layer 6. Several transverse embedded parts 8 are pre-embedded in the protective layer 5. Water-carrying parts 9 connected to the embedded parts 8 are provided on both sides of the upper part of the steel bridge deck 1. The two symmetrical embedded parts 8 extend obliquely to both sides of the steel bridge deck 1. A communication port 10 adapted to the embedded parts 8 is reserved on the side of the water-carrying parts 9.

[0029] Specifically, when paving the steel bridge deck 1, the upper surface of the steel bridge deck 1 is first ground and sandblasted using a shot blasting machine to remove rust. Then, an anti-corrosion layer 2 is sprayed on, which includes, but is not limited to, epoxy resin paint. Next, a filler layer 3 is laid on the anti-corrosion layer 2, which includes, but is not limited to, epoxy asphalt concrete. A waterproof bonding layer 4 is then sprayed on the filler layer 3 using a sprayer. The waterproof bonding layer 4 includes, but is not limited to, epoxy asphalt. Finally, a protective layer 5 is laid on the waterproof bonding layer 4, which includes, but is not limited to, a crushed stone layer. Embedded parts 8 are then embedded within the protective layer 5, with the embedded parts 8 aligned with the width direction of the steel bridge deck 1. Two embedded parts 8 at each cross-sectional position of the steel bridge deck 1 extend from the center of the width of the steel bridge deck 1 to both sides of the steel bridge deck 1, with the end of the embedded part 8 located in the middle of the steel bridge deck 1 being the highest. An adhesive layer 6 is sprayed on the upper surface of the protective layer 5. The adhesive layer 6 includes, but is not limited to, modified emulsified asphalt. Finally, an epoxy wear layer 7 is laid on the upper surface of the adhesive layer 6. The epoxy wear layer 7 includes, but is not limited to, modified asphalt. When rainwater penetrates into the protective layer 5, the rainwater will flow through the inclined embedded parts 8 into the water-carrying parts 9 and be drained away by the water-carrying parts 9, thereby improving the drainage effect after the steel bridge deck 1 is paved.

[0030] As a technical optimization of this utility model, when laying the protective layer 5, a reserved groove 11 adapted to the embedded part 8 is reserved. When laying the protective layer 5, a water guiding slope 12 that is inclined and adapted to the reserved groove 11 is reserved. The reserved groove 11 is used to embed the embedded part 8. When laying the protective layer 5, its upper surface is laid in an inclined manner, and the water guiding slope 12 extends from the middle of the steel bridge deck 1 to both sides of the steel bridge deck 1 and gradually decreases. The water guiding slope 12 guides the infiltrated rainwater to the embedded part 8 in the reserved groove 11, and the infiltrated rainwater can be quickly and centrally discharged into the water flow part 9.

[0031] As a technical optimization of this utility model, the reserved groove 11 has a first step 13 reserved on both sides. A permeable cover plate 14 with a water-permeable effect is laid on the first step 13. A second step 15 is provided on the upper part of the water-carrying component 9. A hollow cover plate is laid on the second step 15. The permeable cover plate 14 has a water-permeable effect and prevents the embedded component 8 from being blocked. The hollow cover plate is installed on the second step 15 to prevent impurities from entering the water-carrying component 9 and causing blockage.

[0032] As a technical optimization of this utility model, the filling layer 3 extends from the middle of the steel bridge deck 1 to both sides in an inclined shape and is adapted to the waterproof adhesive layer 4. The epoxy wear layer 7 extends from the middle of the steel bridge deck 1 to both sides and is adapted to the water-carrying component 9. The filling layer 3 and the waterproof adhesive layer 4, which are laid in an inclined shape on both sides, can quickly drain the rainwater that has seeped into the protective layer 5 into the water-carrying component 9. The epoxy wear layer 7, which is laid in an inclined shape on both sides, can increase the speed at which rainwater flows into the water-carrying component 9 and reduce the amount of rainwater seepage.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An epoxy-based pavement structure for a cable-stayed bridge steel deck, comprising a steel bridge deck (1), characterized in that, The upper surface of the steel bridge deck (1) is coated with an anti-corrosion layer (2), the upper surface of the anti-corrosion layer (2) is covered with a filling layer (3), the upper surface of the filling layer (3) is coated with a waterproof adhesive layer (4), the upper surface of the waterproof adhesive layer (4) is covered with a protective layer (5), the upper surface of the protective layer (5) is coated with an adhesive layer (6), the upper surface of the adhesive layer (6) is covered with an epoxy wear layer (7), and several transverse embedded parts (8) are pre-embedded in the protective layer (5). Water-carrying parts (9) communicating with the embedded parts (8) are provided on both sides of the upper part of the steel bridge deck (1). The two symmetrical embedded parts (8) extend inclinedly to both sides of the steel bridge deck (1).

2. A cable-stayed bridge steel deck epoxy-based pavement structure according to claim 1, characterized in that, The side of the water-carrying component (9) has a pre-reserved communication port (10) that is compatible with the pre-embedded component (8).

3. A cable-stayed bridge steel deck epoxy-based pavement structure according to claim 1, characterized in that, When laying the protective layer (5), a reserved groove (11) adapted to the embedded part (8) is reserved, and a water guiding slope (12) that is inclined and adapted to the reserved groove (11) is reserved when laying the protective layer (5).

4. A cable-stayed bridge steel deck epoxy-based pavement structure according to claim 3, characterized in that, The reserved groove (11) has a first step (13) reserved on both sides, and a permeable cover plate (14) with water permeability is laid on the first step (13).

5. A cable-stayed bridge steel deck epoxy-based pavement structure according to claim 1, characterized in that, The water-carrying component (9) has a second step (15) on its upper part, and a perforated cover plate is laid on the second step (15).

6. A cable-stayed bridge steel deck epoxy-based pavement structure according to claim 1, characterized in that, The filling layer (3) extends from the middle of the steel bridge deck (1) to both sides in an inclined shape and is compatible with the waterproof adhesive layer (4).

7. A cable-stayed bridge steel deck epoxy-based pavement structure according to claim 1, characterized in that, The epoxy wear layer (7) extends from the middle of the steel bridge deck (1) to both sides and is adapted to the water-carrying components (9).

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