Hollow slab bridge reinforcing structure
By installing triangular support frames and adjustable fiber belt systems on hollow slab bridges, the deformation problem of traditional hollow slab bridges under load and temperature changes has been solved, thereby improving structural stability and load-bearing capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional hollow slab bridges exhibit significant structural deformation when subjected to load and temperature changes, lacking an effective reset mechanism, which affects the long-term performance of the bridge.
A triangular support frame consisting of a connecting top plate, connecting side plates, and supporting columns is used, along with an adjustable fiber band and threaded rod system to enhance structural stability and reduce deformation. The fiber band can be reset in the event of minor deformation.
It effectively disperses bridge forces, reduces deflection and deformation, and improves bridge safety and lifespan. It is suitable for bridges made of different materials, reducing self-weight and increasing load-bearing capacity.
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Figure CN224077991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hollow slab bridge technology, and in particular to a hollow slab bridge reinforcement structure. Background Technology
[0002] Hollow slab bridges are a type of bridge structure widely used in highways and railways. They are typically made of prestressed concrete, are elongated and hollow, reducing their self-weight while increasing their load-bearing capacity. By creating cavities within the concrete slab, they reduce material usage and improve bending resistance. This structure is simple in design, relatively easy to construct, and effectively distributes and bears the loads of vehicles and pedestrians, making it widely used in various bridge construction projects.
[0003] However, the design of traditional hollow slab bridges is usually based on specific load conditions. These conditions change over time, with variations in the environment or usage conditions. When faced with dynamic loads or temperature changes, traditional structures may deform significantly and lack an effective reset mechanism, which can easily lead to long-term plastic deformation and affect the overall performance of the bridge.
[0004] Therefore, those skilled in the art have provided a hollow slab bridge reinforcement structure to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hollow slab bridge reinforcement structure. This reinforcement structure for hollow slab bridges features a triangular support frame composed of a connecting top plate, connecting side plates, and supporting columns. This effectively disperses and bears the forces on the bridge, enhancing structural stability and reducing deflection and deformation under load. Furthermore, the design of the fixing plate allows the fiber bands to return to their original position even under minor deformation, maintaining the bridge's stability and reducing potential damage during long-term use. This improves both the safety and lifespan of the bridge.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A hollow slab bridge reinforcement structure includes a fixing plate. Multiple fiber strips are fixedly connected to the outer walls on both sides of the fixing plate. A limit block is fixedly connected to the end of each fiber strip away from the fixing plate. A threaded rod is fixedly connected to the outer wall of the limit block away from the fiber strip. A first connecting top plate and a second connecting top plate are respectively engaged with the outer wall of the fiber strip away from the fixing plate. A connecting side plate is fixedly connected to the outer wall of both the first and second connecting top plates. A support column is fixedly connected to the front and rear ends of the lower part of the outer wall of one side of the connecting side plate.
[0008] Through the above technical solution, the reinforcement structure of the hollow slab bridge is equipped with adjustable fiber strips. Compared with traditional steel, fiber materials can reduce the self-weight of the reinforcement structure, improve the overall load-bearing capacity of the bridge, and can adjust their tensile strength according to the different bridge materials to be suitable for bridges of different materials.
[0009] Furthermore, the upper surface of the fixing plate is provided with a plurality of first mounting holes;
[0010] The above technical solution allows the fixing plate to be bolted to the middle position of the lower surface of the bridge by setting the first mounting hole, so as to absorb and buffer the force on the bridge.
[0011] Furthermore, the limiting block engages with the limiting groove;
[0012] The above technical solution enables users to install and secure the fiber tape according to their needs, so that they can maintain and replace the fiber tape.
[0013] Furthermore, the outer wall of the threaded rod is threaded with an adjusting bolt;
[0014] The above technical solution allows the tension of the fiber belt to be adjusted by setting an adjusting bolt.
[0015] Furthermore, a locking bolt is threaded onto the side of the outer wall of the threaded rod away from the limiting block;
[0016] The above technical solution locks the position of the adjusting bolt after the threaded rod has been adjusted by setting a locking bolt, thereby reducing the possibility of the adjusting bolt shifting.
[0017] Furthermore, the upper surfaces of the first connecting top plate and the second connecting top plate are provided with a plurality of second mounting holes;
[0018] The above technical solution allows for the bolting of the first connecting top plate and the second connecting top plate to both ends of the lower surface of the bridge by setting the second mounting hole.
[0019] Furthermore, the outer wall of the connecting side plate is provided with a plurality of third mounting holes;
[0020] The above technical solution involves setting a third mounting hole to use bolts to install and fix the connecting side plate onto the bridge's support leg.
[0021] Furthermore, a placement groove is provided in the middle of the lower surface of both the first connecting top plate and the second connecting top plate;
[0022] The above technical solution allows users to easily maintain, adjust, or install the installed adjusting bolts and locking bolts by setting up placement slots.
[0023] This utility model has the following beneficial effects:
[0024] 1. The hollow slab bridge reinforcement structure proposed in this utility model, compared with most traditional hollow slab bridges, features a triangular support frame composed of a connecting top plate, connecting side plates, and supporting columns. This effectively disperses and bears the forces on the bridge, enhances structural stability, reduces deflection and deformation of the bridge under load, and the design of the fixing plate allows the fiber bands to return to their original position in the event of minor deformation, maintaining the stability of the bridge and reducing potential damage during long-term use. This improves both the safety and lifespan of the bridge.
[0025] 2. The hollow slab bridge reinforcement structure proposed in this utility model has adjustable fiber strips compared with most traditional hollow slab bridges. The fiber material can reduce the self-weight of the reinforcement structure and improve the overall load-bearing capacity of the bridge compared with traditional steel. Moreover, it can adjust its tensile strength according to the different bridge materials to be suitable for bridges of different materials. Attached Figure Description
[0026] Figure 1 This is a structural schematic diagram of a hollow slab bridge reinforcement structure proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the first connecting top plate structure of a hollow slab bridge reinforcement structure proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of a threaded rod structure for a hollow slab bridge reinforcement structure proposed in this utility model;
[0029] Figure 4 This is a cross-sectional view of a hollow slab bridge reinforcement structure proposed in this utility model.
[0030] Legend:
[0031] 1. Fixing plate; 2. First mounting hole; 3. Fiber tape; 4. Limiting block; 5. Threaded rod; 6. Adjusting bolt; 7. Locking bolt; 8. First connecting top plate; 9. Second connecting top plate; 10. Second mounting hole; 11. Placement groove; 12. Limiting groove; 13. Connecting side plate; 14. Third mounting hole; 15. Support column. Detailed Implementation
[0032] 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.
[0033] Reference Figure 1-4 One embodiment provided by this utility model:
[0034] A hollow slab bridge reinforcement structure includes a fixed plate 1. Multiple fiber bands 3 are fixedly connected to the outer walls of both sides of the fixed plate 1. A limiting block 4 is fixedly connected to the end of each fiber band 3 away from the fixed plate 1. A threaded rod 5 is fixedly connected to the outer wall of the limiting block 4 away from the fiber band 3. A first connecting top plate 8 and a second connecting top plate 9 are respectively engaged with the outer wall of the fiber band 3 away from the fixed plate 1. Connecting side plates 13 are fixedly connected to the outer walls of both the first and second connecting top plates 8 and 9. Support columns 15 are fixedly connected to the front and rear ends of the lower part of the outer wall of one side of the connecting side plate 13. This reinforcement structure for the hollow slab bridge features a triangular support frame composed of the connecting top plate, connecting side plates 13, and support columns 15. This effectively disperses and bears the forces on the bridge, enhancing structural stability and reducing deflection and deformation under load. Furthermore, the design of the fixed plate 1 allows the fiber bands 3 to reset under slight deformation, maintaining bridge stability and reducing potential damage during long-term use. This improves the safety and lifespan of the bridge.
[0035] The upper surface of the fixing plate 1 has multiple first mounting holes 2. By setting the first mounting holes 2, the fixing plate 1 can be bolted to the middle position of the lower surface of the bridge to absorb and buffer the force on the bridge. The limiting block 4 and the limiting groove 12 are engaged, so that the user can install and fix the fiber belt 3 as needed, so that the user can maintain and replace the fiber belt 3. The outer wall of the threaded rod 5 is threaded with an adjusting bolt 6. By setting the adjusting bolt 6, the tension of the fiber belt 3 can be adjusted. The outer wall of the threaded rod 5 away from the limiting block 4 is threaded with a locking bolt 7. By setting the locking bolt 7, the position of the adjusting bolt 6 after the threaded rod 5 is adjusted is locked, reducing the possibility of the adjusting bolt 6 shifting.
[0036] The upper surfaces of the first connecting top plate 8 and the second connecting top plate 9 are provided with multiple second mounting holes 10. The first connecting top plate 8 and the second connecting top plate 9 are bolted to both ends of the lower surface of the bridge by setting the second mounting holes 10. The outer wall of the connecting side plate 13 is provided with multiple third mounting holes 14. The connecting side plate 13 is installed and fixed on the support leg of the bridge by using the bolts with the third mounting holes 14. The middle part of the lower surface of the first connecting top plate 8 and the second connecting top plate 9 is provided with a placement groove 11. The placement groove 11 allows the user to easily maintain, adjust or install the installed adjusting bolt 6 and locking bolt 7.
[0037] Working principle: First, the triangular support frame consisting of the connecting top plate, connecting side plate 13, and support column 15 is installed and fixed at both ends under the bridge, and locked through the second mounting hole 10. The connecting side plate 13 is connected to the bridge support leg through the third mounting hole 14. The limiting block 4 on the fiber belt 3 is installed in the limiting groove 12 on the two triangular support frames. Then, the adjusting bolt 6 and locking bolt 7 are rotated to lock and fix the fiber belt 3. The tension of the fiber belt 3 is adjusted according to the material of the bridge. Finally, the fixing plate 1 is fixed. When the bridge is subjected to force, the fiber belt 3 will absorb and buffer the force on the bridge, and reduce the possibility of bridge deformation.
[0038] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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. A hollow slab bridge reinforcement structure, comprising a fixing plate (1), characterized in that: Multiple fiber bands (3) are fixedly connected to the outer walls on both sides of the fixed plate (1). A limiting block (4) is fixedly connected to the end of the fiber band (3) away from the fixed plate (1). A threaded rod (5) is fixedly connected to the outer wall of the limiting block (4) away from the fiber band (3). A first connecting top plate (8) and a second connecting top plate (9) are respectively snapped together on the outer wall of the fiber band (3) away from the fixed plate (1). A connecting side plate (13) is fixedly connected to the outer wall of the first connecting top plate (8) and the second connecting top plate (9). A support column (15) is fixedly connected to the front end and the rear end of the lower part of the outer wall of the connecting side plate (13).
2. The hollow slab bridge reinforcement structure according to claim 1, characterized in that: The upper surface of the fixing plate (1) is provided with a plurality of first mounting holes (2).
3. The hollow slab bridge reinforcement structure according to claim 1, characterized in that: The limiting block (4) engages with the limiting groove (12).
4. The hollow slab bridge reinforcement structure according to claim 1, characterized in that: The outer wall of the threaded rod (5) is threaded with an adjusting bolt (6).
5. The hollow slab bridge reinforcement structure according to claim 1, characterized in that: The threaded rod (5) has a locking bolt (7) threaded on the side of its outer wall away from the limiting block (4).
6. The hollow slab bridge reinforcement structure according to claim 1, characterized in that: The upper surfaces of the first connecting top plate (8) and the second connecting top plate (9) are provided with a plurality of second mounting holes (10).
7. The hollow slab bridge reinforcement structure according to claim 1, characterized in that: The outer wall of the connecting side plate (13) is provided with a plurality of third mounting holes (14).
8. The hollow slab bridge reinforcement structure according to claim 1, characterized in that: The first connecting top plate (8) and the second connecting top plate (9) both have placement grooves (11) in the middle of their lower surfaces.