High-strength expansion joint structure for bridges

Abstract

The utility model discloses a high strength expansion joint structure for bridge, specifically related to bridge expansion joint technical field, including first bridge body, first bridge body one side is provided with second bridge body, is provided with expansion joint between first bridge body and second bridge body, and the inside installation of expansion joint has location component and sealing mechanism, and sealing mechanism installs above location component, location component includes first comb tooth board, and first comb tooth board is fixedly connected with first bridge body one side, and second bridge body one side is fixedly connected with second comb tooth board, and first bridge body and second bridge body one side all are fixedly connected with a plurality of locating plate, the utility model discloses set up location component and sealing mechanism, can restrain the moving direction of expansion joint, can reduce horizontal misplacement or distortion, thereby can keep stable bearing performance, ensure the safe operation of bridge, and can prevent water and sundries from entering the inside of expansion joint, can prevent moisture erosion beam body.

Description

Technical Field

[0001] This utility model relates to the field of bridge expansion joint technology, and more specifically, to a high-strength expansion joint structure for bridges. Background Technology

[0002] Bridge expansion joints are key components in bridge structures, used to accommodate beam displacement caused by factors such as temperature changes, concrete shrinkage and creep, vehicle loads, and earthquakes, ensuring smooth driving and structural safety.

[0003] Traditional expansion joints are usually filled with concrete. Over time and with the friction from long-term vehicle traffic, wear and aging problems may occur, which will reduce the internal stability, seriously lead to increased displacement, deformation of the expansion joint surface, affect the stability of vehicle driving, and may cause traffic accidents.

[0004] A search revealed that Chinese patent CN222183050U discloses a bridge expansion joint structure. When the main body of the bridge contracts due to cold, the connecting rod will compress the second buffer material, while the connecting column will compress the first buffer material. Both the first and second buffer materials have energy absorption and buffering effects, thereby absorbing the force exerted on the internal structure by the main body of the bridge, protecting the main structure of the bridge from damage caused by environmental factors, improving stability, reducing deformation problems of the expansion joint, and increasing service life.

[0005] In actual use, the aforementioned bridge expansion joint structure is prone to lateral displacement under temperature changes or the lack of guiding effect of vehicle loads, resulting in misalignment. Misalignment leads to local stress concentration, accelerates structural fatigue and damage, causes twisting deformation of the expansion joint, and affects structural stability. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-strength expansion joint structure for bridges to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-strength expansion joint structure for bridges includes a first bridge body, a second bridge body disposed on one side of the first bridge body, an expansion joint disposed between the first bridge body and the second bridge body, and a positioning component and a sealing mechanism installed inside the expansion joint, with the sealing mechanism installed above the positioning component.

[0009] The positioning assembly includes a first comb plate, which is fixedly connected to one side of a first bridge body. A second comb plate is fixedly connected to one side of a second bridge body. Multiple positioning plates are fixedly connected to one side of both the first and second bridge bodies. Limiting posts are installed on the outer side of the positioning plates. Multiple first guide grooves are formed on both sides of the limiting posts. The first guide grooves are adapted to the outer side of the positioning plates. The positioning plates are slidably connected to the inner side of the first guide grooves. Three return springs are fixedly connected inside the first guide grooves. One end of each return spring is fixedly connected to one side of the positioning plate. Multiple sliding grooves are formed at the bottom of the limiting posts. Multiple second guide grooves are formed inside the first comb plate. Multiple first sliders are fixedly connected to the top of the first comb plate. Multiple positioning blocks are fixedly connected inside the second comb plate. The positioning blocks are slidably connected to the inner side of the second guide grooves. Multiple second sliders are fixedly connected to the top of the first comb plate. Both the first and second sliders are slidably connected to the inner side of the sliding grooves.

[0010] By adopting the above technical solution, the movement direction of the expansion joint can be constrained, reducing the risk of vehicle loss of control due to misalignment of the expansion joint.

[0011] As a further description of the above technical solution: the sealing structure includes a diversion plate, which is installed inside the expansion joint. Multiple drainage grooves are provided on the upper surface of the diversion plate. A pressure-resistant plate is fixedly connected to the bottom end of the diversion plate. A first sealing strip and a second sealing strip are fixedly connected to both sides of the pressure-resistant plate. The first sealing strip is installed on one side of the second sealing strip. Multiple bolts are threadedly connected inside the pressure-resistant plate and the diversion plate. The bolts are threadedly connected to the first bridge body and the second bridge body.

[0012] By adopting the above technical solution, a double-layer sealing effect can be provided on the outside of the expansion joint, which can prevent moisture and debris from entering the interior of the expansion joint.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. By setting up positioning components, compared with the existing technology, the first comb plate and the second comb plate are staggered and the movement of the first comb plate and the second comb plate can be guided by limiting posts. Multiple positioning plates are inserted into the first guide groove for positioning, which can constrain the movement direction of the expansion joint, reduce lateral misalignment or torsional deformation, and reduce local stress unevenness caused by misalignment, thereby maintaining stable load-bearing performance and ensuring the safe operation of the bridge.

[0015] 2. By setting up a sealing mechanism, compared with the existing technology, the diversion plate and multiple drainage channels can drain the accumulated water, and the first sealing strip and the second sealing strip can form a double seal on the outside of the expansion joint, thereby preventing water and debris from entering the expansion joint and preventing water from corroding the beam. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the bottom structure of the first bridge body of this utility model.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the first bridge body of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the first comb plate and the second comb plate of this utility model.

[0020] Figure 5 This is a schematic diagram of the limiting column structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the first comb plate structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the second comb plate structure of this utility model.

[0023] The attached figures are labeled as follows: 1. First bridge body; 2. Second bridge body; 3. First comb plate; 4. Second comb plate; 5. Positioning plate; 6. Limiting post; 7. First guide groove; 8. Slide groove; 9. Second guide groove; 10. First slider; 11. Positioning block; 12. Second slider; 13. Diverter plate; 14. Drainage groove; 15. Pressure-resistant plate; 16. First sealing strip; 17. Second sealing strip; 18. Bolt; 19. Expansion joint; 20. Return spring. Detailed Implementation

[0024] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The embodiments disclosed in this application are as follows: Figure 1-6 The high-strength expansion joint structure for bridges shown includes a first bridge body 1, a second bridge body 2 disposed on one side of the first bridge body 1, an expansion joint 19 disposed between the first bridge body 1 and the second bridge body 2, and a positioning component and a sealing mechanism installed inside the expansion joint 19, with the sealing mechanism installed above the positioning component.

[0026] The positioning assembly includes a first comb plate 3, which is fixedly connected to one side of the first bridge body 1. A second comb plate 4 is fixedly connected to one side of the second bridge body 2. Multiple positioning plates 5 are fixedly connected to one side of both the first bridge body 1 and the second bridge body 2. Limiting posts 6 are installed on the outer side of the positioning plates 5. Multiple first guide grooves 7 are opened on both sides of the limiting posts 6. The first guide grooves 7 are adapted to the outer side of the positioning plates 5. The positioning plates 5 are slidably connected to the inner side of the first guide grooves 7. Three return springs 20 are fixedly connected inside the first guide grooves 7. One end of the return spring 20 is fixedly connected to one side of the positioning plate 5. Multiple sliding grooves 8 are opened at the bottom of the limiting posts 6. Multiple second guide grooves 9 are opened on the inner side of the first comb plate 3. Multiple first sliders 10 are fixedly connected to the top of the first comb plate 3. The second comb plate 4 is fixedly connected to the inner side of the first guide plate 4. There are multiple positioning blocks 11, which are slidably connected to the inner side of the second guide groove 9. Multiple second sliders 12 are fixedly connected to the top of the first comb plate 3. Both the first slider 10 and the second slider 12 are slidably connected to the inner side of the slide groove 8. By inserting the positioning plate 5 into the first guide groove 7, the first bridge body 1 and the second bridge body 2 can be positioned. The second comb plate 4 is staggered with the first comb plate 3, and the multiple positioning blocks 11 are slidably connected to the inner side of the second guide groove 9, which can provide guidance for the contraction of the expansion joint 19. The multiple first sliders 10 are slidably connected to the outer side of the second sliders 12, which can provide positioning for the movement of the first comb plate 3 and the second comb plate 4, which can constrain the movement direction of the expansion joint 19, reduce lateral misalignment or torsional deformation, and ensure the safe operation of the bridge.

[0027] Reference Figure 1 and 3 As shown, the sealing structure includes a diversion plate 13, which is installed inside the expansion joint 19. Multiple drainage grooves 14 are formed on the upper surface of the diversion plate 13. A pressure-resistant plate 15 is fixedly connected to the bottom of the diversion plate 13. A first sealing strip 16 and a second sealing strip 17 are fixedly connected to both sides of the pressure-resistant plate 15. The first sealing strip 16 is installed on one side of the second sealing strip 17. Multiple bolts 18 are threadedly connected to both the pressure-resistant plate 15 and the diversion plate 13. The bolts 18 are threadedly connected to the first bridge body 1 and the second bridge body 2. The arc surface of the diversion plate 13 can guide accumulated water into the multiple drainage grooves 14, which can drain the accumulated water. The first sealing strip 16 provides an initial seal at the connection between the pressure-resistant plate 15 and the first bridge body 1, and the two second sealing strips 17 provide a secondary seal at the connection between the pressure-resistant plate 15 and the expansion joint 19, forming a double-layer sealing effect, thereby preventing moisture and debris from entering the expansion joint 19.

[0028] Working principle of this utility model: This utility model designs a high-strength expansion joint structure for bridges, the specific structure of which is shown in the attached instruction manual. Figure 1-6As shown, in this technical solution, the first bridge body 1 and the second bridge body 2 are connected to the bridges at both ends through the cooperation between various structures. When the expansion joint 19 between the first bridge body 1 and the second bridge body 2 contracts under vehicle load, multiple positioning plates 5 are slidably connected to the inner side of the first guide groove 7, thereby positioning the movement of the first bridge body 1 and the second bridge body 2. At the same time, the first comb plate 3 and the second comb plate 4 are staggered, and the positioning block 11 is slidably connected to the inner side of multiple second guide grooves 9, so that the first bridge body 1 and the second bridge body 2 can maintain a horizontal position when contracting and moving. Furthermore, multiple first sliders 10 and second sliders 12 are slidably connected to the inner side of the slide groove 8, and the limiting post 6 can provide positioning above the first comb plate 3 and the second comb plate 4, thereby enabling the first bridge body 1 and the second bridge body 2 to contract and move in a horizontal position and maintain stability. The reset force of multiple reset springs 20 can push the positioning plate 5 to reset after the first bridge body 1 and the second bridge body 2 contract.

[0029] The diversion plate 13 can be used to prevent water seepage. The arc surface of the diversion plate 13 can guide water to multiple drainage channels 14. The water can be discharged through the gradual distribution of multiple drainage channels 14. Multiple first sealing strips 16 can provide a seal at the connection between the pressure plate 15 and the first bridge body 1 and the second bridge body 2. The second sealing strip 17 can provide a seal at the connection between the pressure plate 15 and the expansion joint 19. This can reduce water seepage into the inside of the expansion joint 19 and help improve the sealing effect of the expansion joint 19.

[0030] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here.

[0032] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength expansion joint structure for bridges, comprising a first bridge body (1), characterized in that: A second bridge body (2) is provided on one side of the first bridge body (1), and an expansion joint (19) is provided between the first bridge body (1) and the second bridge body (2). A positioning component and a sealing mechanism are installed inside the expansion joint (19), and the sealing mechanism is installed above the positioning component. The positioning component includes a first comb plate (3), which is fixedly connected to one side of the first bridge body (1). A second comb plate (4) is fixedly connected to one side of the second bridge body (2). Multiple positioning plates (5) are fixedly connected to one side of both the first bridge body (1) and the second bridge body (2). Limiting posts (6) are installed on the outside of the positioning plates (5). Multiple first guide grooves (7) are opened on both sides of the limiting posts (6). The first guide grooves (7) are adapted to the outside of the positioning plates (5). The positioning plates (5) are slidably connected to the inside of the first guide grooves (7).

2. The high-strength expansion joint structure for bridges according to claim 1, characterized in that: The first guide groove (7) is fixedly connected with three reset springs (20). One end of the reset spring (20) is fixedly connected to one side of the positioning plate (5). The bottom end of the limiting post (6) is provided with multiple sliding grooves (8).

3. The high-strength expansion joint structure for bridges according to claim 1, characterized in that: The first comb plate (3) has multiple second guide grooves (9) on its inner side, and multiple first sliders (10) are fixedly connected to the top of the first comb plate (3).

4. The high-strength expansion joint structure for bridges according to claim 1, characterized in that: The second comb plate (4) has multiple positioning blocks (11) fixedly connected inside. The positioning blocks (11) are slidably connected to the inner side of the second guide groove (9). The top of the first comb plate (3) has multiple second sliders (12) fixedly connected. The first slider (10) and the second sliders (12) are both slidably connected to the inner side of the slide groove (8).

5. The high-strength expansion joint structure for bridges according to claim 1, characterized in that: The sealing structure includes a diversion plate (13), which is installed inside the expansion joint (19), and the upper surface of the diversion plate (13) is provided with multiple drainage grooves (14).

6. The high-strength expansion joint structure for bridges according to claim 5, characterized in that: The bottom end of the diversion plate (13) is fixedly connected to the pressure plate (15), and the pressure plate (15) is fixedly connected to both sides of the first sealing strip (16) and the second sealing strip (17). The first sealing strip (16) is installed on one side of the second sealing strip (17).

7. The high-strength expansion joint structure for bridges according to claim 6, characterized in that: The pressure plate (15) and the diversion plate (13) are both threaded with multiple bolts (18), and the bolts (18) are threaded to the first bridge body (1) and the second bridge body (2).

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