A transverse reinforcing structure of a bridge hollow slab

Abstract

The utility model discloses a kind of transverse reinforcing structure of bridge hollow slab plate bottom, it is related to bridge technical field, including longitudinal beam, crossbeam and hollow slab, the outer wall of the crossbeam is provided with the reinforcing component for being fixed to hollow slab, the reinforcing component is located in the upper surface front and rear ends of hollow slab, the reinforcing component includes support frame, and the bottom of support frame and the top of crossbeam are fixedly connected.The utility model cooperates through setting support frame, hollow slab, crossbeam, longitudinal beam, screw rod and fixing frame, rotates screw rod by rotating rotating block, moves up and down along vertical direction using screw thread transmission principle, realizes the close fixing of hollow slab, can be flexibly adjusted fixed strength according to the actual size and shape of hollow slab, ensure that hollow slab does not displace or loosen when bridge bears vehicle load, environmental vibration and other external force, effectively enhance the stability and carrying capacity of bridge transverse structure.

Description

Technical Field

[0001] This utility model relates to the field of bridge technology, specifically to a transverse reinforcement structure for the bottom of a hollow slab of a bridge. Background Technology

[0002] With the increasing traffic volume and the increasing service life of bridges, hollow slab bridge structures are prone to problems such as weakened lateral connections and cracks at the bottom of the slab due to long-term exposure to vehicle loads and environmental erosion. Therefore, it is urgent to strengthen them to improve their structural safety and durability.

[0003] In existing transverse reinforcement technologies for the bottom of hollow slab bridges, bolted connections are commonly used. However, the large number of bolts results in extremely low construction efficiency. For example, for a single-span 20-meter hollow slab bridge, if transverse steel bracing is used for reinforcement, each bracing requires 8-10 bolts. With 5-8 transverse bracings arranged across the entire bridge, a total of over 40 bolts need to be installed and removed. The bolting work alone requires 2-3 workers and 2-3 hours, significantly extending the overall construction period. Therefore, a transverse reinforcement structure for the bottom of hollow slab bridges is proposed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a transverse reinforcement structure for the bottom of a hollow slab of a bridge, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A transverse reinforcement structure for the bottom of a hollow slab of a bridge includes longitudinal beams, transverse beams, and a hollow slab. The outer wall of the transverse beam is provided with a reinforcement component for fixing the hollow slab. The reinforcement component is located at the front and rear ends of the upper surface of the hollow slab. The reinforcement component includes a support frame. The bottom of the support frame is fixedly connected to the top of the transverse beam. A screw is threaded into the inside of the support frame. A fixing frame is fixedly connected to the bottom of the screw. The inner wall of the fixing frame contacts the outer wall of the hollow slab. A rotating block is fixedly connected to the top of the screw. A connecting component is provided at the top of the transverse beam.

[0007] The above technical solution involves the coordinated use of a support frame, hollow slab, crossbeams, longitudinal beams, screws, and fixing frames. By rotating the screws via a rotating block, the fixing frames move vertically up and down using the threaded transmission principle, achieving a tight fixation of the hollow slab. The fixing force can be flexibly adjusted according to the actual size and shape of the hollow slab, ensuring that the hollow slab will not shift or loosen when the bridge is subjected to external forces such as vehicle loads and environmental vibrations, effectively enhancing the stability and load-bearing capacity of the bridge's transverse structure.

[0008] A further improvement of this utility model is that: a dovetail groove is provided inside the crossbeam, a dovetail block is fixedly connected to the bottom of the hollow plate, and the outer wall of the dovetail block and the inside of the dovetail groove are slidably connected.

[0009] The above-mentioned technical solution, through the mutual cooperation of dovetail grooves and dovetail blocks, forms a unique interlocking structure. During the installation of hollow slabs, it can achieve rapid and accurate positioning and prevent the hollow slabs from falling off when subjected to lateral or longitudinal forces. This structure ensures that the hollow slabs are tightly fitted to the crossbeams, making the load transfer more uniform and improving the overall reliability of the bridge structure. At the same time, it facilitates the installation and disassembly of hollow slabs, making it convenient for later maintenance and replacement.

[0010] A further improvement of this utility model is that: a lifting groove is provided inside the crossbeam, and a lifting block is slidably connected inside the lifting groove; one side of the lifting block is fixedly connected to one side of the fixed frame.

[0011] The above technical solution involves the coordinated use of a lifting groove, a lifting block, and a fixed frame. The sliding connection between the lifting groove and the lifting block provides stable guidance for the lifting of the fixed frame, preventing the fixed frame from tilting or shifting during adjustment. When the fixed frame applies pressure to the hollow slab, the lifting block slides smoothly within the lifting groove, ensuring that the fixed frame is evenly stressed and preventing damage to the hollow slab due to excessive local pressure. This further improves the reinforcement effect and the durability of the bridge structure.

[0012] A further improvement of the present invention is that the connecting component includes a connecting frame, and both the interior of the connecting frame and the interior of the crossbeam are provided with first screw holes. The interior of the first screw holes is threaded with a first bolt, and the interior of the connecting frame and the interior of the crossbeam are detachably connected by the first bolt.

[0013] By adopting the above technical solution, the connection between the connecting frame, the first screw hole, and the first bolt is achieved through the cooperation of the first bolt and the first screw hole. This allows for a detachable connection between the connecting frame and the crossbeam. During bridge construction or maintenance, workers can quickly install or disassemble the connecting frame, improving construction efficiency. At the same time, the tightened first bolt provides strong fastening force, ensuring a firm connection between the connecting frame and the crossbeam. This ensures that the two work together to share the load during bridge operation, enhancing the overall integrity of the bridge structure.

[0014] A further improvement of this utility model is that: a second screw hole is provided inside the connecting frame and inside the longitudinal beam, and a second bolt is threaded into the second screw hole, and the interior of the connecting frame and the interior of the longitudinal beam are detachably connected by the second bolt.

[0015] The above technical solution involves the use of a second screw hole, a second bolt, and a longitudinal beam. The second bolt secures the connecting frame to the longitudinal beam through the second screw hole, forming a stable connection system of "longitudinal beam-connecting frame-crossbeam". This connection method makes the force transmission between the longitudinal beam, crossbeam, and hollow slab smoother, effectively dispersing the stress on the bridge and improving the strength and stability of the bridge structure. The detachable design also facilitates the later inspection and replacement of local structures of the bridge, reducing maintenance costs and difficulties.

[0016] A further improvement of this utility model is that: a positioning hole is provided inside the longitudinal beam, and a positioning column is fixedly connected to the top of the crossbeam, with the outer wall of the positioning column and the inside of the positioning hole being inserted into it.

[0017] By adopting the above technical solution, the positioning holes and positioning columns work together, and the positioning columns and positioning holes are interlocked, which enables rapid and accurate positioning when installing the crossbeams, greatly shortening the construction time and improving construction efficiency. At the same time, the closely matched positioning columns and positioning holes can effectively limit the relative displacement between the crossbeams and longitudinal beams, enhance the stability of their connection, and ensure that the structural system remains firm and reliable when the bridge is subjected to complex external forces, thus ensuring the safe operation of the bridge.

[0018] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared with the prior art is: the fixing force can be flexibly adjusted to ensure that the hollow slab will not shift or loosen when the bridge is subjected to external forces such as vehicle loads and environmental vibrations.

[0019] 1. This utility model provides a transverse reinforcement structure for the bottom of a hollow slab of a bridge. By setting up a support frame, hollow slab, crossbeam, longitudinal beam, screw, and fixing frame in cooperation, the screw is driven to rotate by a rotating block. Using the principle of thread transmission, the fixing frame moves up and down in the vertical direction to achieve tight fixation of the hollow slab. The fixing force can be flexibly adjusted according to the actual size and shape of the hollow slab to ensure that the hollow slab will not shift or loosen when the bridge is subjected to external forces such as vehicle loads and environmental vibrations, effectively enhancing the stability and load-bearing capacity of the bridge's transverse structure.

[0020] 2. This utility model provides a transverse reinforcement structure for the bottom of a hollow slab of a bridge. By setting a connecting frame, a first screw hole, and a first bolt in cooperation, the cooperation between the first bolt and the first screw hole realizes the detachable connection between the connecting frame and the crossbeam. During bridge construction or maintenance, workers can quickly install or disassemble the connecting frame, improving construction efficiency. At the same time, the tightened first bolt can provide a strong fastening force, making the connecting frame and the crossbeam firmly connected, ensuring that the two work together to share the load during bridge operation and enhancing the overall integrity of the bridge structure.

[0021] 3. This utility model provides a transverse reinforcement structure for the bottom of a hollow slab of a bridge. By setting positioning holes and positioning columns in cooperation, and the insertion and cooperation of the positioning columns and positioning holes, rapid and accurate positioning can be achieved when installing the crossbeams, which greatly shortens the construction time and improves the construction efficiency. At the same time, the tightly fitted positioning columns and positioning holes can effectively limit the relative displacement between the crossbeams and longitudinal beams, enhance the stability of the connection between the two, and ensure that the structural system remains firm and reliable when the bridge is subjected to complex external forces, thus ensuring the safe operation of the bridge. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the reinforcement component structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection component structure of this utility model;

[0025] Figure 4 This is an enlarged structural diagram of point A of this utility model.

[0026] In the diagram: 1. Longitudinal beam; 2. Crossbeam; 3. Hollow plate; 4. Support frame; 5. Screw; 6. Fixing frame; 7. Rotating block; 8. Dovetail groove; 9. Dovetail block; 10. Lifting groove; 11. Lifting block; 12. Connecting frame; 13. First screw hole; 14. First bolt; 15. Second screw hole; 16. Second bolt; 17. Positioning hole; 18. Positioning post. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to embodiments:

[0028] Example 1

[0029] like Figure 1-4 As shown, this utility model provides a transverse reinforcement structure for the bottom of a hollow slab of a bridge, including a longitudinal beam 1, a transverse beam 2, and a hollow slab 3. The outer wall of the transverse beam 2 is provided with a reinforcement component for fixing the hollow slab 3. The reinforcement component is located at the front and rear ends of the upper surface of the hollow slab 3. The reinforcement component includes a support frame 4. The bottom of the support frame 4 is fixedly connected to the top of the transverse beam 2. The support frame 4 is internally threaded with a screw 5. The bottom of the screw 5 is fixedly connected to a fixing frame 6. The inner wall of the fixing frame 6 is in contact with the outer wall of the hollow slab 3. The top of the screw 5 is fixedly connected to a rotating block 7. The top of the transverse beam 2 is provided with a connecting component. The transverse beam 2 has a dovetail groove 8. The bottom of the hollow slab 3 is fixedly connected to a dovetail block 9. The outer wall of the dovetail block 9 is slidably connected to the inside of the dovetail groove 8.

[0030] In this embodiment, in a municipal bridge renovation project, it is necessary to reinforce the bottom of the hollow slab 3 of the existing bridge laterally. The construction workers first slowly push the hollow slab 3 with dovetail blocks 9 into the dovetail groove 8 of the crossbeam 2. The dovetail structure accurately guides the hollow slab 3 to the predetermined position, realizing rapid positioning and installation. Then, the reinforcement components are operated, and the rotating block 7 at the top of the screw 5 is rotated. The screw 5 drives the fixing frame 6 to move downward until the inner wall of the fixing frame 6 is tightly attached to the outer wall of the hollow slab 3. The fastening force generated by the thread transmission firmly fixes the hollow slab 3 to the crossbeam 2. During the process, the lifting block 11 slides stably in the lifting groove 10 to ensure that the fixing frame 6 moves vertically downward and is evenly stressed.

[0031] Subsequently, the connecting components are installed. The first screw hole 13 on the connecting frame 12 is aligned with the first screw hole 13 on the crossbeam 2, and the first bolt 14 is screwed in and tightened to securely connect the connecting frame 12 and the crossbeam 2. Then, the second screw hole 15 on the connecting frame 12 is aligned with the second screw hole 15 on the longitudinal beam 1 and secured with the second bolt 16 to form a stable connection system of longitudinal beam 1-connecting frame 12-crossbeam 2. At the same time, the positioning post 18 at the top of the crossbeam 2 is accurately inserted into the positioning hole 17 of the longitudinal beam 1 to further enhance the stability of the overall structure. With this reinforcement, the lateral bearing capacity of the bottom of the hollow slab 3 of the bridge is significantly improved, effectively meeting the subsequent traffic needs.

[0032] Example 2

[0033] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a lifting groove 10 is provided inside the crossbeam 2, and a lifting block 11 is slidably connected inside the lifting groove 10. One side of the lifting block 11 is fixedly connected to one side of the fixing frame 6. The connecting assembly includes a connecting frame 12. A first screw hole 13 is provided inside both the connecting frame 12 and the crossbeam 2. A first bolt 14 is threadedly connected inside the first screw hole 13. The inside of the connecting frame 12 and the inside of the crossbeam 2 are detachably connected by the first bolt 14. A second screw hole 15 is provided inside both the connecting frame 12 and the longitudinal beam 1. A second bolt 16 is threadedly connected inside the second screw hole 15. The inside of the connecting frame 12 and the inside of the longitudinal beam 1 are detachably connected by the second bolt 16. A positioning hole 17 is provided inside the longitudinal beam 1. A positioning post 18 is fixedly connected to the top of the crossbeam 2. The outer wall of the positioning post 18 is inserted into the inside of the positioning hole 17.

[0034] In this embodiment, during the construction of a new highway bridge, this transverse reinforcement structure is used to install and reinforce the hollow slab 3. In the initial stage of construction, the crossbeam 2 is first erected in the predetermined position. The positioning of the crossbeam 2 and the longitudinal beam 1 is quickly completed by inserting the positioning column 18 into the positioning hole 17 of the longitudinal beam 1. Then, the dovetail block 9 at the bottom of the hollow slab 3 is embedded into the dovetail groove 8 of the crossbeam 2. After sliding to the appropriate position, it is fixed by using the reinforcement components. The operator controls the screw 5 to drive the fixing frame 6 to press down by rotating the rotating block 7. The fixing force is adjusted according to the actual situation of the hollow slab 3 to ensure that the hollow slab 3 is stable and does not shake.

[0035] Next, the connecting frame 12 is installed, and the connecting frame 12 is connected and fixed to the crossbeam 2 and the longitudinal beam 1 by the first bolt 14 and the second bolt 16 respectively, forming a complete force-bearing system. During the construction process, this reinforcement structure greatly improves the construction efficiency due to its convenient installation method and reliable connection performance, and ensures the installation accuracy of the hollow slab 3 of the bridge. The load test after the bridge opened to traffic shows that the reinforced bridge structure is stable, and the hollow slab 3, crossbeam 2 and longitudinal beam 1 work together to bear the force well, effectively ensuring the safety and durability of the bridge.

[0036] The working principle of the transverse reinforcement structure at the bottom of the hollow slab 3 of the bridge will be explained in detail below.

[0037] like Figure 1-4 As shown, during the installation and positioning stage, the dovetail block 9 at the bottom of the hollow plate 3 and the dovetail groove 8 of the crossbeam 2 form a sliding engagement structure. Utilizing the guiding properties of the dovetail groove 8, the hollow plate 3 is quickly and accurately positioned, preventing lateral or longitudinal displacement. Simultaneously, the positioning post 18 at the top of the crossbeam 2 engages with the positioning hole 17 of the longitudinal beam 1, ensuring accurate installation of the crossbeam 2 and longitudinal beam 1, laying the foundation for the overall structure. Entering the tightening and reinforcement stage, the operator rotates the rotating block 7 at the top of the screw 5. Based on the threaded transmission principle, the screw 5 drives the fixing frame 6 to move vertically downwards. During this process, the lifting block 11 slides stably within the lifting groove 10 of the crossbeam 2, ensuring the fixing frame 6 is pressed down smoothly, making the inner wall of the fixing frame 6 tightly adhere to the outer wall of the hollow plate 3. This tightening is achieved through the threaded connection. The hollow slab 3 is firmly fixed to the crossbeam 2, effectively limiting its vertical displacement and enhancing the connection strength between the hollow slab 3 and the crossbeam 2. Finally, a stable force-bearing system is constructed through the connecting components. The connecting frame 12 is fixedly connected to the crossbeam 2 by the first bolt 14 and to the longitudinal beam 1 by the second bolt 16, forming an integrated structure of "longitudinal beam 1-connecting frame 12-crossbeam 2-hollow slab 3". This connection method not only enables each component to work together to bear the load, but also disperses the stress on the bridge through the bolt tightening force. Combined with the limiting effect of the positioning column 18 and the positioning hole 17, it further enhances the overall stability of the structure, ensuring that the transverse structure at the bottom of the hollow slab 3 remains firm and reliable under the action of external forces such as vehicle load and environmental vibration, effectively improving the load-bearing capacity and durability of the bridge.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A transverse reinforcement structure for the bottom of a hollow slab of a bridge, comprising a longitudinal beam (1), a transverse beam (2), and a hollow slab (3), characterized in that: The outer wall of the crossbeam (2) is provided with a reinforcing component for fixing the hollow plate (3). The reinforcing component is located at the front and rear ends of the upper surface of the hollow plate (3). The reinforcing component includes a support frame (4). The bottom of the support frame (4) is fixedly connected to the top of the crossbeam (2). The support frame (4) is internally threaded with a screw (5). The bottom of the screw (5) is fixedly connected to a fixing frame (6). The inner wall of the fixing frame (6) is in contact with the outer wall of the hollow plate (3). The top of the screw (5) is fixedly connected to a rotating block (7). The top of the crossbeam (2) is provided with a connecting component.

2. The transverse reinforcement structure for the bottom of a bridge hollow slab (3) according to claim 1, characterized in that: The crossbeam (2) has a dovetail groove (8) inside, and the bottom of the hollow plate (3) is fixedly connected to a dovetail block (9). The outer wall of the dovetail block (9) and the inside of the dovetail groove (8) are slidably connected.

3. The transverse reinforcement structure for the bottom of a hollow bridge slab (3) according to claim 1, characterized in that: The beam (2) has a lifting groove (10) inside, and a lifting block (11) is slidably connected inside the lifting groove (10). One side of the lifting block (11) is fixedly connected to one side of the fixed frame (6).

4. The transverse reinforcement structure for the bottom of a bridge hollow slab (3) according to claim 1, characterized in that: The connecting assembly includes a connecting frame (12), and both the interior of the connecting frame (12) and the interior of the crossbeam (2) are provided with first screw holes (13). The interior of the first screw holes (13) is threaded with a first bolt (14), and the interior of the connecting frame (12) and the interior of the crossbeam (2) are detachably connected by the first bolt (14).

5. The transverse reinforcement structure for the bottom of a bridge hollow slab (3) according to claim 4, characterized in that: The connecting frame (12) and the longitudinal beam (1) are provided with a second screw hole (15), and a second bolt (16) is threaded into the second screw hole (15). The interior of the connecting frame (12) and the interior of the longitudinal beam (1) are detachably connected by the second bolt (16).

6. The transverse reinforcement structure for the bottom of a bridge hollow slab (3) according to claim 1, characterized in that: The longitudinal beam (1) has a positioning hole (17) inside, and the top of the cross beam (2) is fixedly connected to a positioning column (18), and the outer wall of the positioning column (18) is inserted into the positioning hole (17).

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