Bridge prestress reinforcing device
By designing a bridge prestressing reinforcement device including steel cables, fixing discs, expansion bolts, rotary threaded rods and operating rods, the problem of prestressing in the prior art is solved, and convenient prestress adjustment and simplification of post-maintenance are achieved.
Patent Information
- Application Number
- CN202421062938.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The existing bridge prestressing reinforcement devices are not easy to change the prestress size, resulting in troublesome maintenance in the later stage.
A bridge prestressing reinforcement device is designed to adjust and fix the prestress through the combination of steel cables, fixing discs, expansion bolts, rotary threaded rods and operating rods.
The device facilitates prestress adjustment through the rotating operating rod in the later stage, the fixing disc and fixing plate are fixed by expansion bolts, and the threaded rod and the threaded cylinder are connected by threads, which is convenient for disassembly and installation, simplifying the later maintenance and replacement process.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge prestressed reinforcement devices, in particular to a bridge prestressed reinforcement device. Background Art
[0002] As we all know, highway bridge engineering refers to the planning, design, construction, maintenance, and repair of structures across waters, valleys, and all traffic channels. Prestressed reinforcement is a method of reinforcing structural members or the entire structure by adding prestressed steel tie rods or steel struts. Its characteristic is that it forces the added part of the tie rod or strut to bear force through prestressing means, changes the internal force distribution of the original structure, and reduces the stress level of the original structure, so that the stress-strain hysteresis phenomenon unique to general reinforced structures can be completely eliminated.
[0003] When adding prestress to a bridge reinforcement device, it is not easy to change the size of the prestress, which easily leads to troubles in later maintenance. Therefore, the utility model proposes a new solution. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a bridge prestressing reinforcement device, which solves the problem that the size of the prestressing force of the prior bridge prestressing reinforcement device is not easy to change, which easily leads to troublesome later maintenance.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prestressed reinforcement device for a bridge, comprising a bridge body and bridge piers on both sides, a plurality of reinforcement devices are installed at the bottom of the bridge body, each reinforcement device comprises a steel cable, both ends of each steel cable are connected to a fixed plate, each fixed plate is installed with a plurality of first expansion bolts, each steel cable is installed with a top frame, the bottom of each top frame is provided with a top groove, the top of each top frame is connected with a fixed block, each fixed block is provided with a rotating groove, each rotating groove is installed with a rotating block, the top of each rotating block is connected with an operating rod, the top of each operating rod is connected with a threaded rod, each threaded rod is installed with a threaded barrel, the top of each threaded barrel is connected with a fixed plate, and each fixed plate is provided with a plurality of second expansion bolts.
[0008] Furthermore, each rotating groove and each rotating block are connected by rotation.
[0009] Furthermore, each operating rod is provided with a plurality of anti-slip grooves.
[0010] Furthermore, each threaded rod is connected to each threaded barrel via threads.
[0011] Furthermore, each fixing disk is sprayed with anti-corrosion paint, and each fixing plate is sprayed with anti-corrosion paint.
[0012] Further, each steel cable is matched with each top groove.
[0013] (III) Beneficial effects
[0014] Compared with the prior art, the utility model provides a bridge prestressing reinforcement device, which has the following beneficial effects:
[0015] The bridge prestressed reinforcement device has fixed plates at both ends of the steel cable fixed to the bottom of the bridge body by first expansion bolts, and then the threaded rod is rotated to extend outward in the threaded barrel, and the top frame pushes the steel cable to increase prestress to the bridge, which is convenient for later adjustment by rotating the operating rod, and the fixed plate is fixed to the bridge body by the first expansion bolt, the fixed plate is fixed to the bridge body by the second expansion bolt, and the threaded rod is connected to the threaded barrel by threads, all of which can be disassembled and installed, which is convenient for later maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the isometric structure of the utility model;
[0017] Figure 2 It is a left-side structural schematic diagram of the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;
[0019] Figure 4 It is a three-dimensional structural schematic diagram of the top frame, top groove, fixed block, rotating groove and other components in the utility model;
[0020] Figure 5 It is a three-dimensional structural schematic diagram of the transfer block, operating rod, threaded rod and other components of the utility model.
[0021] In the figure: 1, bridge body; 2, bridge pier; 3, steel cable; 4, fixing plate; 5, first expansion bolt; 6, top frame; 7, top groove; 8, fixing block; 9, rotating groove; 10, rotating block; 11, operating rod; 12, threaded rod; 13, threaded cylinder; 14, fixing plate; 15, second expansion bolt. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 1-5 The utility model discloses a prestressed reinforcement device for a bridge, comprising a bridge body 1 and bridge piers 2 on both sides. A plurality of reinforcement devices are installed at the bottom of the bridge body 1, each reinforcement device comprises a steel cable 3, both ends of each steel cable 3 are connected with a fixing plate 4, each fixing plate 4 is installed with a plurality of first expansion bolts 5, each steel cable 3 is installed with a top frame 6, a top groove 7 is arranged at the bottom of each top frame 6, each steel cable 3 matches each top groove 7, a fixing block 8 is connected to the top of each top frame 6, a rotating groove 9 is arranged on each fixing block 8, and a rotating block is installed on each rotating groove 9. 10. Each rotating groove 9 is connected to each rotating block 10 by rotation, the top of each rotating block 10 is connected to an operating rod 11, and each operating rod 11 is provided with a plurality of anti-slip grooves. The top of each operating rod 11 is connected to a threaded rod 12, and each threaded rod 12 is installed with a threaded tube 13. Each threaded rod 12 is connected to each threaded tube 13 by threading, and the top of each threaded tube 13 is connected to a fixing plate 14, each fixing disk 4 is sprayed with anti-corrosion paint, each fixing plate 14 is sprayed with anti-corrosion paint, and each fixing plate 14 is provided with a plurality of second expansion bolts 15.
[0024] To summarize, when the prestressed reinforcement device for the bridge is in use, the fixing plate 14 is fixed to the middle part of the bottom of the bridge body 1 by the second expansion bolt 15, and then the threaded rod 12 is rotated into the threaded barrel 13, and the fixing plates 4 at both ends of the steel cable 3 are fixed to the bottom of the bridge body 1 by the first expansion bolt 5. At the same time, the steel cable 3 is placed in the top groove 7, and the operating rod 11 is clamped by a tool and rotated. The threaded rod 12 extends outward in the threaded barrel 13, so that the top frame 6 pushes the steel cable 3 downward until the force is reached.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bridge prestressing reinforcement device, comprising a bridge body (1) and bridge piers (2) on both sides, characterized in that: A plurality of reinforcement devices are installed at the bottom of the bridge body (1), each of the reinforcement devices comprises a steel cable (3), both ends of each steel cable (3) are connected to a fixing plate (4), each fixing plate (4) is installed with a plurality of first expansion bolts (5), each steel cable (3) is installed with a top frame (6), the bottom of each top frame (6) is provided with a top groove (7), the top of each top frame (6) is connected to a fixing block (8), and each fixing block ( 8) are provided with a rotation groove (9), each of the rotation grooves is installed with a rotation block (10), the top of each rotation block (10) is connected to an operating rod (11), the top of each operating rod (11) is connected to a threaded rod (12), each threaded rod (12) is installed with a threaded barrel (13), the top of each threaded barrel (13) is connected to a fixing plate (14), and each fixing plate (14) is provided with a plurality of second expansion bolts (15).
2. A bridge prestressing reinforcement device according to claim 1, characterized in that: Each of the rotating grooves (9) and each of the rotating blocks (10) are connected by rotation.
3. A bridge prestressing reinforcement device according to claim 1, characterized in that: Each of the operating rods (11) is provided with a plurality of anti-slip grooves.
4. A bridge prestressing reinforcement device according to claim 1, characterized in that: Each of the threaded rods (12) and each of the threaded barrels (13) are connected via threads.
5. The prestressed reinforcement device for a bridge according to claim 1, characterized in that: Each of the fixing discs (4) is sprayed with anti-corrosion paint, and each of the fixing plates (14) is sprayed with anti-corrosion paint.
6. A bridge prestressing reinforcement device according to claim 1, characterized in that: Each of the steel cables (3) matches each of the top grooves (7).