Reinforcing device for incremental launching construction of continuous steel box girder bridge
By designing a reinforcement device for over-push construction for steel box girder bridges, the problem of difficult reinforcement of steel box girder bridges is solved, and the tight fit and effective fixation of steel box girders is achieved.
Patent Information
- Application Number
- CN202420756676.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-04-12
AI Technical Summary
It is difficult to reinforce the steel box girder bridge during the overhead construction process, especially in large-span bridges, structural deformation and construction errors are prone to occur, which increases the difficulty of reinforcement.
A reinforcement device for the construction of continuous steel box girder bridge top push is designed, including steel box girder, guide frame, support frame, fixing plate and sliding sleeve. The tight fit and effective fixation of the steel box girder is achieved through bolt fixation, sliding connection and threaded connection.
The device rotates the hand-wheel drive threaded rod to push the block to tighten and fix the steel box girder, achieving a reinforcement effect of easy operation and tight fit, and improving the difficulty of reinforcement of the steel box girder bridge.
Smart Images
Figure CN222878518U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reinforcement equipment for jacking construction, in particular to a reinforcement device for jacking construction of a continuous steel box girder bridge. Background Art
[0002] The structural characteristics of steel box girder bridges determine the difficulty of their reinforcement. Steel box girders have special cross-sectional forms and complex stress states, which makes it particularly difficult to reinforce them during the jacking construction process. Especially in large-span bridges, structural deformation and construction errors of steel box girders are more likely to occur, further increasing the difficulty of reinforcement. Utility Model Content
[0003] The utility model aims to solve the problem that it is particularly difficult to reinforce the existing steel box girder bridge during the jacking construction process, and to provide a reinforcement device for the jacking construction of a continuous steel box girder bridge.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforcement device for the top-pushing construction of a continuous steel box girder bridge, comprising: a steel box girder, a guide frame, a receiving frame, a fixed plate and a sliding sleeve, characterized in that a first sliding groove is provided on the top of the receiving frame, a first sliding block is fixedly connected to the bottom of the fixed plate, a first threaded hole is provided on one side of the fixed plate, a threaded rod is threadedly connected to one end of the first threaded hole, a rotating handwheel is fixedly connected to one end of the threaded rod, and a stop block is fixedly connected to the other end of the threaded rod.
[0005] As a further solution of the utility model: a second sliding groove is provided on one side of the supporting frame, a sliding frame is fixedly connected to one side of the sliding sleeve, a second sliding block is fixedly connected to one side of the sliding frame, a steel frame slot is provided inside the sliding sleeve, a first mounting plate is fixedly connected to one side of the steel frame slot, a through hole is provided on one side of the first mounting plate, a second mounting plate is fixedly connected to the other side of the steel frame slot, a second threaded hole is provided on one side of the second mounting plate, and a fixing bolt is provided at one end of the through hole.
[0006] As a further solution of the utility model: the steel box girder and the guide frame are fixed by bolts, and two groups of fixing plates are provided.
[0007] As a further solution of the present invention: the first sliding grooves are provided in two groups, the first sliding blocks are provided in four groups, and they are adapted to be slidably connected with each other.
[0008] As a further solution of the present invention: the first threaded hole, the threaded rod, the rotating hand wheel and the stop block are all provided in four groups.
[0009] As a further solution of the utility model: the number of the second sliding groove and the steel frame slot is set to two groups, the number of the sliding frame, the second slider, the through hole, the second threaded hole and the fixing bolt are all set to four groups, and the second sliding groove and the second slider are adapted to be slidably connected to each other, and the fixing bolt passes through the through hole and is threadedly connected to the second threaded hole.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] In the utility model, by rotating the hand wheel, the threaded rod can be driven to rotate and move in the threaded hole, thereby pushing the stop block to press and fix the steel box girder. This design is not only easy to operate, but also can achieve close fit and effective fixation of the steel box girder, improving the structural characteristics of the steel box girder bridge, which determines the difficulty of its reinforcement. The steel box girder has a special cross-sectional form and a complex stress state, which makes it particularly difficult to reinforce it during the jacking construction process. Especially in large-span bridges, structural deformation and construction errors of the steel box girder are more likely to occur, further increasing the difficulty of reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the reinforcement device for top-pushing construction of a continuous steel box girder bridge according to the utility model;
[0013] Figure 2 It is a structural schematic diagram of the receiving frame in the reinforcement device for top-pushing construction of the continuous steel box girder bridge described in the utility model;
[0014] Figure 3 It is a structural schematic diagram of a fixed plate in a reinforcement device for top-pushing construction of a continuous steel box girder bridge according to the utility model;
[0015] Figure 4 It is a structural schematic diagram of a sliding sleeve in a reinforcement device for top-pushing construction of a continuous steel box girder bridge according to the utility model.
[0016] In the figure: 1. steel box girder; 2. guide frame; 3. receiving frame; 4. fixed plate; 5. sliding sleeve; 6. first slide groove; 7. first slider; 8. first threaded hole; 9. threaded rod; 10. rotating hand wheel; 11. stop block; 12. second slide groove; 13. sliding frame; 14. second slider; 15. steel frame slot; 16. first mounting plate; 17. through hole; 18. second mounting block; 19. second threaded hole; 20. fixing bolt. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.
[0019] Reference Figures 1 to 4In the embodiment of the utility model, the reinforcement device for the top-pushing construction of the continuous steel box girder bridge comprises: a steel box girder 1, a guide frame 2, a receiving frame 3, a fixing plate 4 and a sliding sleeve 5, characterized in that a first sliding groove 6 is provided on the top of the receiving frame 3, a first sliding block 7 is fixedly connected to the bottom of the fixing plate 4, a first threaded hole 8 is provided on one side of the fixing plate 4, a threaded rod 9 is threadedly connected to one end of the first threaded hole 8, a rotating hand wheel 10 is fixedly connected to one end of the threaded rod 9, and a stop block 11 is fixedly connected to the other end of the threaded rod 9. The steel box girder 1 and the guide frame 2 are fixed by bolts. The fixing plate 4 is provided with two groups, the first sliding groove 6 is provided with two groups, the first sliding block 7 is provided with four groups, and they are adapted to slide and connect with each other. The first threaded hole 8, the threaded rod 9, the rotating hand wheel 10 and the stop block 11 are all provided with four groups. The steel box girder 1 is fixed to the guide frame 2 by bolts. Connection, the main function of the guide frame is to ensure the directional stability of the steel box girder during the jacking process to prevent it from being offset or deformed. This connection method is not only simple and easy, but also can ensure the firmness and reliability of the connection. Then, the receiving frame 3 is slidingly connected with the first sliding groove 6 above it and the first sliding block 7 under the fixed plate 4. This sliding connection method enables the fixed plate to flexibly adjust its position to adapt to steel box girders of different lengths and positions. The first threaded hole 8 on the fixed plate is threadedly connected to the threaded rod 9. One end of the threaded rod is provided with a rotating handwheel 10, and the other end is connected to the stop block 11. By rotating the rotating handwheel, the threaded rod can be driven to rotate and move in the threaded hole, thereby pushing the stop block to tighten and fix the steel box girder. This design is not only easy to operate, but also can achieve close fit and effective fixation of the steel box girder.
[0020] Reference Figure 1 , Figure 2 and Figure 4A second slide groove 12 is provided on one side of the receiving frame 3, a sliding frame 13 is fixedly connected to one side of the sliding sleeve 5, a second slider 14 is fixedly connected to one side of the sliding frame 13, a steel frame slot 15 is provided inside the sliding sleeve 5, a first mounting plate 16 is fixedly connected to one side of the steel frame slot 15, a through hole 17 is provided on one side of the first mounting plate 16, a second mounting plate 18 is fixedly connected to the other side of the steel frame slot 15, a second threaded hole 19 is provided on one side of the second mounting plate 18, a fixing bolt 20 is provided at one end of the through hole 17, the second slide groove 12 and the steel frame slot 15 are provided in two groups, and the sliding frame 13, the second slider 14, the through hole 17, the second threaded hole 19 and the fixing bolt 20 are all provided in four groups, The second slide groove 12 and the second slider 14 are adapted to be slidably connected with each other, the fixing bolt 20 passes through the through hole 17 and is threadedly connected with the second threaded hole 19, and the sliding sleeve can slide freely on the receiving frame along the length direction of the steel box girder to adapt to the reinforcement requirements of different lengths. The steel frame slot 15 opened inside the sliding sleeve is used to slide on the mounting frame to ensure a close fit between the reinforcement device and the mounting frame. A first mounting plate is provided on one side of the steel frame slot, and a second mounting plate is provided on the other side. The two are connected with the fixing bolts through the through hole and the second threaded hole. This connection method enables the sliding sleeve to be firmly fixed on the mounting frame to prevent it from falling off or loosening during the pushing process.
[0021] The working principle of the utility model is: first, the steel box girder 1 is fixedly connected to the guide frame 2 by bolts. The main function of the guide frame is to ensure the directional stability of the steel box girder during the jacking process to prevent it from being offset or deformed. This connection method is not only simple and easy, but also can ensure the firmness and reliability of the connection. Then, the receiving frame 3 is slidably connected to the first sliding groove 6 above it and the first sliding block 7 below the fixed plate 4. This sliding connection method enables the fixed plate to flexibly adjust its position to adapt to steel box girders of different lengths and positions. The first threaded hole 8 on the fixed plate is threadedly connected to the threaded rod 9. One end of the threaded rod is provided with a rotating handwheel 10, and the other end is connected to the stop block 11. By rotating the rotating handwheel, the threaded rod 9 can be driven to rotate and move in the threaded hole, thereby pushing the stop block 11 to push the steel box girder. The box girder 1 is pressed and fixed. This design is not only convenient to operate, but also can achieve a close fit and effective fixation of the steel box girder 1. In addition, a second sliding groove 12 is provided on the side of the receiving frame 3, which is slidably connected to the second sliding block 14 on the sliding frame 13 on one side of the sliding sleeve 5, so that the sliding sleeve can slide freely along the length direction of the steel box girder on the receiving frame to meet the reinforcement requirements of different lengths. The steel frame slot 15 opened inside the sliding sleeve is used to slide on the mounting frame to ensure a close fit between the reinforcement device and the mounting frame. A first mounting plate is provided on one side of the steel frame slot, and a second mounting plate is provided on the other side. The two are connected with fixing bolts through a through hole and a second threaded hole. This connection method enables the sliding sleeve to be firmly fixed on the mounting frame to prevent it from falling off or loosening during the pushing process.
[0022] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. Reinforcement device for top-pushing construction of continuous steel box girder bridge, including: A steel box girder (1), a guide frame (2), a receiving frame (3), a fixed plate (4) and a sliding sleeve (5), characterized in that a first sliding groove (6) is provided on the top of the receiving frame (3), a first sliding block (7) is fixedly connected to the bottom of the fixed plate (4), a first threaded hole (8) is provided on one side of the fixed plate (4), a threaded rod (9) is threadedly connected to one end of the first threaded hole (8), a rotating hand wheel (10) is fixedly connected to one end of the threaded rod (9), and a stop block (11) is fixedly connected to the other end of the threaded rod (9).
2. The reinforcement device for top-pushing construction of a continuous steel box girder bridge according to claim 1 is characterized in that: A second sliding groove (12) is provided on one side of the receiving frame (3); a sliding frame (13) is fixedly connected to one side of the sliding sleeve (5); a second sliding block (14) is fixedly connected to one side of the sliding frame (13); a steel frame slot (15) is provided inside the sliding sleeve (5); a first mounting plate (16) is fixedly connected to one side of the steel frame slot (15); a through hole (17) is provided on one side of the first mounting plate (16); a second mounting plate (18) is fixedly connected to the other side of the steel frame slot (15); a second threaded hole (19) is provided on one side of the second mounting plate (18); and a fixing bolt (20) is provided at one end of the through hole (17).
3. The reinforcement device for top-pushing construction of a continuous steel box girder bridge according to claim 1 is characterized in that: The steel box beam (1) and the guide frame (2) are fixed by bolts, and two groups of the fixing plates (4) are provided.
4. The reinforcement device for top-pushing construction of a continuous steel box girder bridge according to claim 1 is characterized in that: The first sliding grooves (6) are provided in two groups, and the first sliding blocks (7) are provided in four groups, and they are adapted to be slidably connected to each other.
5. The reinforcement device for top-pushing construction of a continuous steel box girder bridge according to claim 1 is characterized in that: The first threaded hole (8), the threaded rod (9), the rotating hand wheel (10) and the stop block (11) are all provided in four groups.
6. The reinforcement device for top-pushing construction of a continuous steel box girder bridge according to claim 2 is characterized in that: The second slide groove (12) and the steel frame slot (15) are arranged in two groups, the sliding frame (13), the second slider (14), the through hole (17), the second threaded hole (19) and the fixing bolt (20) are arranged in four groups, and the second slide groove (12) and the second slider (14) are adapted to be slidably connected to each other, and the fixing bolt (20) passes through the through hole (17) and is threadedly connected to the second threaded hole (19).