Bridge bearing replacement and levelling device

Abstract

The utility model discloses bridge support replacement and leveling device relates to bridge support technical field, including bottom plate, the top of bottom plate is provided with bearing pile, the four corners of bottom plate top close to bearing pile all are provided with reinforcing shell, the top of bearing pile is provided with top plate, the top of top plate is provided with four anti -wear pad. The utility model discloses through the rising of four hydraulic jacks in each device of starting simultaneously, respectively drive the top plate of linking each other and the contact below bridge, slowly lift the bridge upper structure, make it separate with support, remove the damaged or ageing support from bridge lower structure, install the new support to the design position accurately, ensure that it is closely connected with bridge upper and lower structure, after the completion of new support replacement and leveling, gradually reduce four hydraulic jacks, make bridge upper structure steady and fall back on new support, and the telescopic link will occur telescopic according to the lifting of top plate, avoid the displacement of top plate after lifting bridge.

Description

Technical Field

[0001] This utility model relates to the field of bridge bearing technology, specifically a bridge bearing replacement and leveling device. Background Technology

[0002] Bridge bearings are an indispensable and crucial component of bridge structures. They play a vital role in modern bridge construction. Specifically, the main function of bridge bearings is to effectively support the bridge superstructure, enabling it to withstand loads from vehicles, pedestrians, and the natural environment. Simultaneously, they are responsible for safely, stably, and evenly distributing these loads to the bridge piers and foundations, thereby ensuring the overall stability and durability of the bridge structure during long-term use and preventing various safety hazards caused by uneven or unstable load distribution.

[0003] However, in existing technologies, the bearing dimensions, shapes, and load-bearing requirements vary significantly across different types and specifications of bridges. Existing devices are often only applicable to specific types of bearings and may not be effective for some special or non-standard bearings. For example, large replacement and leveling devices are difficult to operate precisely on micro-bearings used on some small bridges, and cannot adequately adapt to their structural characteristics for bearing replacement and leveling. Therefore, we provide bridge bearing replacement and leveling kits. Utility Model Content

[0004] The purpose of this invention is to provide a bridge bearing replacement and leveling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bridge bearing replacement and leveling device, comprising a base plate, a load-bearing pile at the top of the base plate, a reinforcing shell at each of the four corners of the top of the base plate near the load-bearing pile, a top plate at the top of the load-bearing pile, four anti-wear pads at the top of the top plate, support blocks at each of the four corners of the bottom of the base plate, hydraulic jacks inside each of the four reinforcing shells, limit telescopic rods on both sides of the top of the base plate, a level on one side of the top of the base plate, and support mechanisms on both sides of the base plate.

[0006] As a further preferred embodiment of this technical solution, the support mechanism includes a connecting plate, which is fixedly connected to one side of the base plate, and reinforcing blocks are fixedly connected to both ends of the top of the connecting plate.

[0007] As a further preferred embodiment of this technical solution, one side of the reinforcing block is fixedly connected to one side of the base plate, and both ends of the bottom of the connecting plate are fixedly connected to supporting suction cups.

[0008] As a further preferred embodiment of this technical solution, the bottom of the load-bearing pile is fixedly connected to the top of the base plate, the reinforcing shell is fixedly connected to the top of the base plate, and the exterior of the hydraulic jack is fixedly installed inside the reinforcing shell.

[0009] As a further preferred embodiment of this technical solution, the top of the hydraulic jack is fixedly connected to the bottom of the top plate, and the bottom of the anti-wear pad is fixedly connected to the top of the top plate.

[0010] As a further preferred embodiment of this technical solution, support blocks are fixedly connected to the four corners of the bottom of the base plate, and the bottom of the limiting telescopic rod is fixedly connected to the top of the base plate.

[0011] As a further preferred embodiment of this technical solution, the top of the limiting telescopic rod is fixedly connected to the bottom of the top plate, and a level is fixedly installed on one side of the top of the bottom plate.

[0012] This utility model provides a bridge bearing replacement and leveling device, which has the following beneficial effects:

[0013] (1) This utility model raises four hydraulic jacks in each device simultaneously, which drive the top plates connected to them to contact the bottom of the bridge, slowly lifting the upper structure of the bridge and separating it from the supports. Damaged or aged supports are removed from the lower structure of the bridge, and new supports are precisely installed in the design position to ensure that they are tightly connected to the upper and lower structures of the bridge. After the new supports are replaced and leveled, the four hydraulic jacks are gradually lowered so that the upper structure of the bridge falls back smoothly onto the new supports. The limit telescopic rod will extend and retract according to the rise and fall of the top plate to prevent displacement after the top plate lifts the bridge.

[0014] (2) The present invention increases the structural strength of the connection between the base plate and the connecting plate by providing a reinforcing block. In addition, the support suction cup increases the contact area between the ground and the connecting plate through negative pressure adsorption, preventing the equipment from shifting or tilting during operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the bridge bearing replacement and leveling device of this utility model.

[0016] Figure 2 This is a side view of the bridge bearing replacement and leveling device of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the disassembled side of the bridge bearing replacement and leveling device of this utility model.

[0018] Figure 4 This is a schematic diagram of the side structure of the support mechanism of the bridge bearing replacement and leveling device of this utility model.

[0019] In the diagram: 11. Base plate; 12. Load-bearing pile; 13. Reinforcing shell; 14. Top plate; 15. Anti-wear pad; 16. Support block; 17. Hydraulic jack; 18. Limiting telescopic rod; 19. Level.

[0020] 2. Support mechanism; 21. Connecting plate; 22. Reinforcing block; 23. Support suction cup. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1-4 As shown, in this embodiment, the bridge bearing replacement and leveling device includes a base plate 11, a load-bearing pile 12 on the top of the base plate 11, a reinforcing shell 13 at each of the four corners of the top of the base plate 11 near the load-bearing pile 12, a top plate 14 on the top of the load-bearing pile 12, four anti-wear pads 15 on the top of the top plate 14, and support blocks 16 at each of the four corners of the bottom of the base plate 11. Hydraulic jacks 17 are installed inside each of the four reinforcing shells 13. The bottom of the load-bearing pile 12 is fixedly connected to the top of the base plate 11, and the reinforcing shells 13 are fixedly connected to the top of the base plate 11. The external surface of the hydraulic jacks 17 is reinforced with... The fixed shell 13 is installed inside the fixed shell. The top of the hydraulic jack 17 is fixedly connected to the bottom of the top plate 14. The bottom of the anti-wear pad 15 is fixedly connected to the top of the top plate 14. Limiting telescopic rods 18 are provided on both sides of the top of the bottom plate 11. Support blocks 16 are fixedly connected to the four corners of the bottom of the bottom plate 11. The bottom of the limiting telescopic rod 18 is fixedly connected to the top of the bottom plate 11. A level 19 is provided on one side of the top of the bottom plate 11. The top of the limiting telescopic rod 18 is fixedly connected to the bottom of the top plate 14. A level 19 is fixedly installed on one side of the top of the bottom plate 11. Support mechanisms 2 are provided on both sides of the bottom plate 11.

[0023] In this embodiment, when the device is needed, multiple devices can be installed in the gaps under the bridge to ensure that the equipment is stable and aligned with the bridge structure. By simultaneously activating the four hydraulic jacks 17 in each device to rise, the top plates 14 connected to each device are brought into contact with the underside of the bridge, slowly lifting the upper structure of the bridge and separating it from the supports. During the lifting process, the lifting height must be strictly controlled to avoid damage to the bridge structure. Damaged or aged supports are removed from the lower structure of the bridge, and new supports are precisely installed in the designed position to ensure a tight connection with the upper and lower structures of the bridge. After the new supports are replaced and leveled, the four hydraulic jacks 17 are gradually lowered so that the upper structure of the bridge falls smoothly back onto the new supports. It is worth mentioning that the limiting telescopic rod 18 will extend and retract according to the rise and fall of the top plate 14 to prevent the top plate 14 from shifting after lifting the bridge. In addition, after the hydraulic jacks 17 retract, the top plate 14 will descend onto the load-bearing piles 12, which can provide support for the top plate 14.

[0024] like Figures 1-4 As shown, the support mechanism 2 includes a connecting plate 21, which is fixedly connected to one side of the base plate 11. Reinforcing blocks 22 are fixedly connected to both ends of the top of the connecting plate 21. One side of the reinforcing block 22 is fixedly connected to one side of the base plate 11. Support suction cups 23 are fixedly connected to both ends of the bottom of the connecting plate 21.

[0025] In this embodiment, the reinforcement block 22 increases the structural strength of the connection between the base plate 11 and the connecting plate 21. In addition, the support suction cup 23 increases the contact area between the ground and the connecting plate 21 through negative pressure adsorption, preventing the equipment from shifting or tilting during operation.

[0026] This utility model provides a bridge bearing replacement and leveling device, the specific working principle of which is as follows:

[0027] When the bridge bearing replacement and leveling device is needed, firstly, multiple devices are installed in the gaps under the bridge. During installation, it is crucial to ensure the accurate positioning of each device and its alignment with the bridge structure to guarantee the stability and safety of the jacking process. After installation, the four hydraulic jacks 17 in each device are simultaneously activated, initiating the hydraulic system and slowly raising the top plate 14 connected to the jacks until it makes tight contact with the bridge substructure. During the jacking process, the hydraulic jacks 17 rise synchronously, slowly lifting the bridge superstructure and separating it from the original bearing. This process requires strict control of the jacking height, typically achieved through real-time monitoring of bridge displacement and stress changes using high-precision sensors and a synchronous control system to ensure the jacking is successful. The process is smooth and uniform, avoiding damage to the bridge structure. After the bridge superstructure is lifted to the predetermined height, operators can remove damaged or aging bearings. Special tools are used to remove the old bearings from the bridge substructure, and the bearing installation area is cleaned to ensure that the installation foundation for the new bearings is flat and clean. Subsequently, the new bearings are precisely installed in the designed position to ensure a tight connection with the bridge superstructure. The height and level of the bearings are calibrated using a level 19. After the new bearings are installed and leveled, the four hydraulic jacks 17 are gradually lowered, and the hydraulic system is slowly unloaded, allowing the bridge superstructure to fall smoothly back onto the new bearings. This process also requires strict control of the descent speed to ensure that the bridge structure is evenly stressed and to avoid local stress concentration or structural deformation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge bearing replacement and leveling device, including a base plate (11), characterized in that: The top of the base plate (11) is provided with a load-bearing pile (12). The four corners of the top of the base plate (11) near the load-bearing pile (12) are provided with a reinforcing shell (13). The top of the load-bearing pile (12) is provided with a top plate (14). The top of the top plate (14) is provided with four anti-wear pads (15). The four corners of the bottom of the base plate (11) are provided with support blocks (16). The four reinforcing shells (13) are provided with hydraulic jacks (17). The top two sides of the base plate (11) are provided with limit telescopic rods (18). The top one side of the base plate (11) is provided with a level (19). The two sides of the base plate (11) are provided with support mechanisms (2).

2. The bridge bearing replacement and leveling device according to claim 1, characterized in that: The support mechanism (2) includes a connecting plate (21), which is fixedly connected to one side of the base plate (11), and reinforcing blocks (22) are fixedly connected to both ends of the top of the connecting plate (21).

3. The bridge bearing replacement and leveling device according to claim 2, characterized in that: One side of the reinforcing block (22) is fixedly connected to one side of the base plate (11), and both ends of the bottom of the connecting plate (21) are fixedly connected to supporting suction cups (23).

4. The bridge bearing replacement and leveling device according to claim 1, characterized in that: The bottom of the load-bearing pile (12) is fixedly connected to the top of the base plate (11), the reinforcing shell (13) is fixedly connected to the top of the base plate (11), and the exterior of the hydraulic jack (17) is fixedly installed inside the reinforcing shell (13).

5. The bridge bearing replacement and leveling device according to claim 1, characterized in that: The top of the hydraulic jack (17) is fixedly connected to the bottom of the top plate (14), and the bottom of the anti-wear pad (15) is fixedly connected to the top of the top plate (14).

6. The bridge bearing replacement and leveling device according to claim 1, characterized in that: Support blocks (16) are fixedly connected to the four corners of the bottom of the base plate (11), and the bottom of the limiting telescopic rod (18) is fixedly connected to the top of the base plate (11).

7. The bridge bearing replacement and leveling device according to claim 1, characterized in that: The top of the limiting telescopic rod (18) is fixedly connected to the bottom of the top plate (14), and a level (19) is fixedly installed on one side of the top of the bottom plate (11).

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