A waterproof bridge expansion joint structure

Abstract

This utility model relates to the field of bridge engineering technology, and in particular to a waterproof bridge expansion joint structure, comprising a steel plate, with reinforcing bars welded to the opposite side of each steel plate. A sealing groove is formed on the top of each opposite side of the steel plate, and a sealing plate is placed on top of the sealing groove. A sealing gasket is fixedly connected to the opposite side of the bottom of each sealing plate. A dustproof plate is placed on the right side of the top of the left side of the steel plate, and a drainage hole is formed on the top of the dustproof plate. This utility model, through the cooperation of the sealing groove, sealing plate, sealing gasket, and connecting bolts, has the advantage of waterproofing. After the steel plate is laid, concrete is poured around it. After the concrete solidifies, the sealing plate is installed on the surface of the sealing groove using connecting bolts. The sealing gasket at the bottom of the sealing plate is in close contact with the road surface, thereby sealing the joint between the steel plate and the road surface and preventing water seepage.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, specifically a waterproof bridge expansion joint structure. Background Technology

[0002] Bridges are exposed to the natural environment, and the bridge deck will expand and contract due to changes in solar radiation and ambient temperature. Expansion joints can adapt to these temperature changes, adjust the expansion and contraction of the bridge deck, and prevent the bridge from being damaged by excessive tensile force.

[0003] A search revealed that the patent, CN222594583U, entitled "Utility Model of Bridge Expansion Joint Structure," includes a bridge slab. Research and analysis revealed that while it has advantages such as ease of disassembly and maintenance during use, it also has the following disadvantages to some extent.

[0004] For example, if the expansion joint lacks a waterproof structure and the connection between the expansion joint and the bridge deck lacks a sealing structure, rainwater can easily seep into the expansion joint through the gaps. The infiltrated rainwater will continuously corrode the core components such as metal components and rubber sealing strips inside the expansion joint, accelerating the corrosion and aging process. At the same time, debris and silt carried by rainwater will accumulate in the gaps, hindering the normal expansion and contraction function of the expansion joint and affecting its adaptability to bridge displacement. In order to solve the above technical problems, we have designed a waterproof bridge expansion joint structure. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof bridge expansion joint structure, which has the advantage of preventing rainwater from seeping into the interior of the expansion joint. It solves the problem that in the existing expansion joint structure, the connection between the expansion joint and the bridge deck lacks a sealing structure, which makes it easy for rainwater to seep into the interior of the expansion joint through the gaps.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof bridge expansion joint structure, comprising a steel plate, wherein steel bars are welded to the opposite side of the steel plate, a sealing groove is provided on the top of the opposite side of the steel plate, a sealing plate is placed on the top of the sealing groove, a sealing gasket is fixedly connected to the opposite side of the bottom of the sealing plate, a dustproof plate is placed on the right side of the top of the left side of the steel plate, and a drainage hole is provided on the top of the dustproof plate.

[0007] Preferably, the top of the sealing plate has several bolt grooves, and a connecting bolt is movably connected through the bottom of the inner cavity of the bolt groove, and the bottom end of the connecting bolt is threadedly connected to the steel plate.

[0008] Preferably, rubber pads are fixedly connected to opposite sides of the bottom of the sealing plate, and the bottom of the rubber pads is in contact with the sealing groove.

[0009] Preferably, the dustproof plate has grooves on both the front and rear sides of the top left side, and a fastening bolt is movably connected through the bottom of the groove cavity, with the bottom end of the fastening bolt threadedly connected to the steel plate.

[0010] Preferably, the number of steel bars is several, and the steel bars are arranged at equal intervals.

[0011] Preferably, the sealing plate is made of rubber, and a rubber strip is provided on the opposite side of the steel plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model has the advantage of waterproof function through the cooperation of sealing groove, sealing plate, sealing gasket and connecting bolt. After the steel plate is laid, concrete is poured around the steel plate. After the concrete solidifies, the sealing plate is installed on the surface of the sealing groove by connecting bolt. The sealing gasket at the bottom of the sealing plate is in close contact with the road surface, thereby sealing the joint between the steel plate and the road surface and preventing water seepage.

[0013] 2. This utility model has the advantage of dustproof function through the combination of dustproof plate, drainage hole, groove and fastening bolt. The dustproof plate is installed on the surface of the steel plate on the left side by fastening bolt. Under the action of the dustproof plate, larger impurities such as fallen leaves can be filtered and blocked, and impurities can be prevented from accumulating on the surface of the rubber belt. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the structure of this utility model; Figure 2 This is a three-dimensional bottom view of the sealing plate structure of this utility model; Figure 3 This is a three-dimensional view of the steel plate structure of this utility model; Figure 4 This is a three-dimensional view of the dustproof plate structure of this utility model; Figure 5 This utility model Figure 4 A magnified view of A in the middle.

[0015] In the diagram: 1. Steel plate; 2. Reinforcing bar; 3. Sealing groove; 4. Sealing plate; 5. Sealing gasket; 6. Dustproof plate; 7. Drainage hole; 8. Connecting bolt; 9. Rubber gasket; 10. Groove; 11. Fastening bolt; 12. Rubber strip. Detailed Implementation

[0016] Please see Figures 1-5A waterproof bridge expansion joint structure includes a steel plate 1, with reinforcing bars 2 welded to the opposite side of the steel plate 1. The reinforcing bars 2 enhance the connection strength between the steel plate 1 and the surrounding concrete, allowing the expansion joint structure to be more firmly embedded in the bridge structure, improving the overall load-bearing capacity and deformation resistance. Sealing grooves 3 are formed on the top of the opposite side of the steel plate 1. These grooves provide installation space for sealing components such as sealing plates 4 and sealing gaskets 5, facilitating the positioning and fixing of the sealing structure and ensuring accurate sealing of the connection between the steel plate 1 and the bridge deck. A sealing plate is placed on top of the sealing groove 3. 4. Sealing gaskets 5 are fixedly connected to the opposite side of the bottom of the sealing plate 4. By setting the sealing gaskets 5, they are in close contact with the road surface, further enhancing the sealing performance between the sealing plate 4 and the road surface, and effectively preventing rainwater from seeping into the expansion joint from the contact area between the sealing plate 4 and the road surface. A dustproof plate 6 is placed on the right side of the top of the steel plate 1 on the left side. By setting the dustproof plate 6, larger impurities such as fallen leaves can be filtered and blocked, preventing impurities from accumulating on the surface of the rubber strip 12 and preventing impurities from hindering the normal expansion and contraction function of the expansion joint. A drainage hole 7 is opened on the top of the dustproof plate 6, which allows rainwater falling on the dustproof plate 6 to be discharged in time.

[0017] Please see Figure 1 The top of the sealing plate 4 has several bolt grooves, and the bottom of the inner cavity of the bolt groove is movably connected with a connecting bolt 8. By setting the connecting bolt 8, the sealing plate 4 can be firmly fixed on the steel plate 1, ensuring that the sealing plate 4 will not loosen or shift under the action of bridge expansion and contraction and vehicle load, and ensuring the durability of the sealing effect. The bottom end of the connecting bolt 8 is threadedly connected to the steel plate 1.

[0018] Please see Figure 2 Rubber pads 9 are fixedly connected to the opposite sides of the bottom of the sealing plate 4. By setting the rubber pads 9, the sealing performance between the sealing plate 4 and the sealing groove 3 can be enhanced. At the same time, the elasticity of the rubber material can buffer the pressure between the sealing plate 4 and the sealing groove 3 and reduce the wear between them. The bottom of the rubber pads 9 is in contact with the sealing groove 3.

[0019] Please see Figure 5 The dustproof plate 6 has grooves 10 on the front and rear sides of the top left side. The grooves 10 provide an installation position for the fastening bolts 11 and can hide the head of the fastening bolts 11 to avoid the bolt head protruding and affecting the stability of the vehicle. The bottom of the inner cavity of the groove 10 is movably connected to the fastening bolts 11. The fastening bolts 11 can be used to firmly fix the dustproof plate 6 to the steel plate 1 to prevent the dustproof plate 6 from moving or falling off under the action of external factors and to ensure the normal function of dust prevention. The bottom end of the fastening bolts 11 is threaded to the steel plate 1.

[0020] Please see Figure 1There are several steel bars 2, and they are arranged at equal intervals.

[0021] Please see Figure 1 The sealing plate 4 is made of rubber. A rubber strip 12 is provided on the opposite side of the steel plate 1. By providing the rubber strip 12, a sealing function is achieved, preventing rainwater and debris from entering the gap between the steel plates 1.

[0022] In use, after the steel plate 1 is laid, concrete is poured around the steel plate 1 and the reinforcing bar 2. After the concrete has solidified, the sealing plate 4 is installed on the surface of the sealing groove 3 by connecting bolts 8. At this time, the sealing gasket 5 at the bottom of the sealing plate 4 is in close contact with the road surface, thereby sealing the joint between the steel plate 1 and the road surface to prevent water seepage. Then, the dustproof plate 6 is installed on the surface of the steel plate 1 on the left side by fastening bolts 11. Under the action of the dustproof plate 6, larger impurities such as fallen leaves can be filtered and blocked, which can prevent impurities from accumulating on the surface of the rubber belt 12. The dustproof plate 6 is only fixed on the surface of the steel plate 1 on the left side. When there is displacement between the two steel plates 1, the dustproof plate 6 will slide on the surface of the steel plate 1 on the right side.

[0023] In summary, this waterproof bridge expansion joint structure, through the combination of sealing groove 3, sealing plate 4, sealing gasket 5, connecting bolt 8, dustproof plate 6, drainage hole 7, groove 10 and fastening bolt 11, solves the problem that existing expansion joint structures lack a sealing structure at the connection between the expansion joint and the bridge deck, which makes it easy for rainwater to seep into the expansion joint through gaps.

Claims

1. A waterproof bridge expansion joint structure, comprising a steel plate (1), characterized in that: The steel plate (1) is welded with steel bars (2) on the opposite side. The top of the opposite side of the steel plate (1) is provided with a sealing groove (3). A sealing plate (4) is placed on the top of the sealing groove (3). A sealing gasket (5) is fixedly connected to the bottom opposite side of the sealing plate (4). A dustproof plate (6) is placed on the right side of the top of the steel plate (1) on the left side. A drainage hole (7) is provided on the top of the dustproof plate (6).

2. The waterproof bridge expansion joint structure according to claim 1, characterized in that: The top of the sealing plate (4) has several bolt grooves, and the bottom of the inner cavity of the bolt groove is movably connected with a connecting bolt (8). The bottom end of the connecting bolt (8) is threadedly connected to the steel plate (1).

3. The waterproof bridge expansion joint structure according to claim 1, characterized in that: Rubber pads (9) are fixedly connected to the opposite sides of the bottom of the sealing plate (4), and the bottom of the rubber pads (9) is in contact with the sealing groove (3).

4. The waterproof bridge expansion joint structure according to claim 1, characterized in that: The dustproof plate (6) has grooves (10) on the front and rear sides of the top left side. A fastening bolt (11) is movably connected through the bottom of the inner cavity of the groove (10). The bottom end of the fastening bolt (11) is threadedly connected to the steel plate (1).

5. A waterproof bridge expansion joint structure according to claim 1, characterized in that: The number of the steel bars (2) is several, and the steel bars (2) are arranged at equal distances.

6. A waterproof bridge expansion joint structure according to claim 1, characterized in that: The sealing plate (4) is made of rubber, and a rubber strip (12) is provided on the opposite side of the steel plate (1).

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