Detachable prestressed carbon fiber composite rib

Abstract

The utility model discloses a detachable prestressed carbon fiber composite rib which comprises a tensioning end and a fixed end, the tensioning end comprises a first anchoring sleeve, a tensioning plate, a tensioning support, a jack and a push block, and the fixed end comprises a fixed seat and a second anchoring sleeve connected to the fixed seat; the jack is installed on the tensioning support, the two sides of the tensioning support are slidably connected with pull rods, the two pull rods are connected with push blocks, the telescopic end of the jack is connected with the push blocks, the ends, away from the push blocks, of the pull rods are connected with a tensioning plate, the first anchoring sleeve is connected to the tensioning plate, and the opposite ends of the first anchoring sleeve and the second anchoring sleeve are connected with composite ribs. Four positioning rods are connected to the side, away from the jack, of the tensioning support, notches are formed in the four corners of the tensioning plate, the positioning rods penetrate through the notches, and first nuts are in threaded connection with the positions, located on the two sides of the tensioning plate, of the positioning rods. After the composite rib is stretched, the two first nuts are tightly pressed on the two sides of the tensioning plate, and the composite rib can be prevented from rebounding under the action of the jack.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber composite reinforcement technology, specifically a detachable prestressed carbon fiber composite reinforcement. Background Technology

[0002] In bridge construction, whether it's a concrete structure, steel structure, or steel-concrete composite structure, the bridge deck is typically a reinforced concrete slab. Over the past 20 years, these bridge structural systems have revealed several problems, the most serious being premature structural degradation or functional deficiencies caused by corrosion of the reinforcing steel or steel itself. Bridge decks are particularly prone to steel corrosion due to factors such as a thin protective layer, direct application of de-icing salt to the surface, and the tendency to crack under long-term traffic loads. Therefore, structural reinforcement and strengthening are necessary for bridge decks with insufficient structural functionality.

[0003] The existing reinforcement device clamps both ends of the carbon fiber reinforcement with conical cavity anchors. One anchor is fixed, and the other anchor can be moved and tensioned by external force. Generally, the tensioning anchor is driven by a jack to tighten the carbon fiber reinforcement. However, the following problems exist: (1) After the composite reinforcement is stretched, it is easy for it to spring back; (2) The tensioning end is generally difficult to remove. After the composite reinforcement is tensioned, it is difficult to remove the tensioning end. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a detachable prestressed carbon fiber composite reinforcement to solve the problems mentioned in the background section.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A detachable prestressed carbon fiber composite reinforcement includes a tensioning end and a fixed end. The tensioning end includes a first anchoring sleeve, a tensioning plate, a tensioning support, a jack, and a push block. The fixed end includes a fixed seat and a second anchoring sleeve connected to the fixed seat. The jack is installed on the tensioning support, and pull rods are slidably connected to both sides of the tensioning support. Push blocks are connected to the two pull rods. The telescopic end of the jack is connected to the push block. The end of the pull rod away from the push block is connected to the tensioning plate. The first anchoring sleeve is connected to the tensioning plate. The first anchoring sleeve and the second anchoring sleeve are arranged opposite each other, and the opposite ends are used to connect the composite reinforcement. Four positioning rods are connected to the side of the tensioning support away from the jack. The tensioning plate has notches at its four corners, through which the positioning rods pass. First nuts are threaded onto the positioning rods on both sides of the tensioning plate.

[0007] Preferably, the tensioning support includes a base plate, an intermediate plate and a top plate connected by connecting rods, a jack installed on the top plate, and U-shaped openings on both sides of the intermediate plate and the top plate, with two tie rods slidably disposed within the U-shaped openings.

[0008] The above technical solution uses a jack to push a push block, which in turn drives a tie rod to slide within a U-shaped opening, thereby moving the tension plate and pulling the composite reinforcement in the first anchor sleeve.

[0009] Preferably, the connecting rod is threaded with a second nut on both sides of the intermediate plate and a third nut on both sides of the top plate.

[0010] The above technical solution allows for adjustment of the position of the intermediate plate on the connecting rod by loosening the second nut, and adjustment of the position of the top plate on the connecting rod by loosening the third nut. Removing the third nut allows the top plate to be removed from the connecting rod, and removing the second nut allows the intermediate plate to be removed from the connecting rod, facilitating the disassembly of the tensioning support.

[0011] Preferably, a fourth nut is threaded onto both sides of the push block on the pull rod.

[0012] The above technical solution allows the position of the push block on the pull rod to be adjusted by loosening the fourth nut, and the push block can be removed from the pull rod by removing the fourth nut, making disassembly convenient.

[0013] Preferably, a strip-shaped opening is provided on one side of the base plate, and one end of the composite rib is movably disposed within the strip-shaped opening.

[0014] With the above technical solution, once the composite reinforcement is stretched to the required length, the bottom plate of the tensioning support can be removed from the composite reinforcement along the strip opening, improving the ease of disassembly.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) After the composite reinforcement is stretched, tighten the first nut so that the two first nuts are pressed tightly on both sides of the tensioning plate. Since one end of the positioning rod is connected to the tensioning support, combined with the action of the jack, the composite reinforcement can be prevented from springing back.

[0017] (2) After the composite reinforcement is stretched, the tensioning support can be disassembled to facilitate the removal of the tensioning support. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 The front view of the type;

[0020] Figure 3 for Figure 1 The bottom view

[0021] Figure 4 This is a schematic diagram of the base plate and the tensioning plate.

[0022] In the diagram: 1-First anchor sleeve, 2-Tensioning plate, 3-Tensioning support, 301-Bottom plate, 302-Connecting rod, 303-Intermediate plate, 304-Top plate, 305-U-shaped opening, 306-Second nut, 307-Third nut, 308-Strip opening, 4-Jack, 5-Push block, 6-Fixed seat, 7-Second anchor sleeve, 8-Tie rod, 11-Composite reinforcement, 12-Positioning rod, 13-Notch, 14-First nut, 15-Fourth nut. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Please see Figure 1-4 A detachable prestressed carbon fiber composite reinforcement includes a tensioning end and a fixed end. The tensioning end includes a first anchoring sleeve 1, a tensioning plate 2, a tensioning support 3, a jack 4, and a push block 5. The fixed end includes a fixed seat 6 and a second anchoring sleeve 7 connected to the fixed seat.

[0026] Specifically, the tensioning support 3 includes a base plate 301, an intermediate plate 303 and a top plate 304 connected by a connecting rod 302, a jack 4 installed on the top plate 304, and U-shaped openings 305 on both sides of the intermediate plate 303 and the top plate 304. Two tie rods 8 are connected to both sides of the tensioning plate 2, and the two tie rods 8 are slidably disposed in the U-shaped openings 305. Push blocks 5 are connected to the two tie rods 8, the telescopic end of the jack 4 is connected to the push blocks, and the end of the tie rod 8 away from the push blocks is connected to the tensioning plate 2. The first anchoring sleeve 1 is connected to the tensioning plate 2, and the first anchoring sleeve 1 and the second anchoring sleeve 7 are arranged opposite to each other, and the opposite ends are used to connect the composite reinforcement 11. Four positioning rods 12 are connected to the side of the tensioning support 3 away from the jack, and notches 13 are provided at the four corners of the tensioning plate 2. The positioning rods 12 pass through the notches 13, and the positioning rods 12 are threadedly connected to the two sides of the tensioning plate with first nuts 14. After the composite reinforcement is stretched, tighten the first nut 14 so that the two first nuts 14 are pressed tightly against both sides of the tension plate 2. Since one end of the positioning rod 12 is connected to the bottom plate 301 of the tension support 3, and in combination with the action of the jack 4, the composite reinforcement 1 can be prevented from springing back.

[0027] The connecting rod 302 has second nuts 306 threadedly connected to both sides of the intermediate plate, and third nuts 307 threadedly connected to both sides of the top plate. Loosening the second nuts 306 adjusts the position of the intermediate plate 303 on the connecting rod 302, and loosening the third nuts 307 adjusts the position of the top plate 304 on the connecting rod 302. Removing the third nuts 307 removes the top plate 304 from the connecting rod 302, and removing the second nuts 306 removes the intermediate plate 303 from the connecting rod 302, facilitating the disassembly of the tensioning support 3.

[0028] The pull rod 8 is threaded with fourth nuts 15 on both sides of the push block. Loosening the fourth nuts 15 allows the position of the push block 5 on the pull rod to be adjusted. Removing the fourth nuts 15 allows the push block to be removed from the pull rod for easy disassembly.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that a strip-shaped opening 308 is provided on one side of the base plate 301, and one end of the composite reinforcement 11 is movably disposed within the strip-shaped opening 308. When the composite reinforcement is stretched to the required length, the base plate 301 of the tensioning support can be removed from the composite reinforcement along the strip-shaped opening 308, improving the convenience of disassembly.

[0031] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] 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 detachable prestressed carbon fiber composite reinforcement, characterized in that: The system includes a tensioning end and a fixed end. The tensioning end includes a first anchoring sleeve (1), a tensioning plate (2), a tensioning support (3), a jack (4), and a push block (5). The fixed end includes a fixed seat (6) and a second anchoring sleeve (7) connected to the fixed seat. The jack (4) is installed on the tensioning support (3). Pull rods (8) are slidably connected to both sides of the tensioning support (3). Push blocks (5) are connected to the two pull rods (8). The telescopic end of the jack (4) is connected to the push block (5). The pull rods (8) are far from the push block. One end of the block is connected to a tension plate (2), and the first anchor sleeve (1) is connected to the tension plate (2). The first anchor sleeve (1) and the second anchor sleeve (7) are arranged opposite to each other, and the opposite ends are used to connect the composite reinforcement (11). The side of the tension support (3) away from the jack is connected to four positioning rods (12). The four corners of the tension plate (2) are provided with notches (13). The positioning rods (12) pass through the notches (13). The positioning rods (12) are threaded with first nuts (14) on both sides of the tension plate.

2. The detachable prestressed carbon fiber composite reinforcement according to claim 1, characterized in that: The tension support (3) includes a base plate (301), an intermediate plate (303) and a top plate (304) connected by a connecting rod (302). A jack (4) is installed on the top plate (304). U-shaped openings (305) are provided on both sides of the intermediate plate (303) and the top plate (304). Two tie rods (8) are slidably installed in the U-shaped openings (305).

3. The detachable prestressed carbon fiber composite reinforcement according to claim 2, characterized in that: The connecting rod (302) is threaded with a second nut (306) on both sides of the intermediate plate, and the connecting rod (302) is threaded with a third nut (307) on both sides of the top plate.

4. The detachable prestressed carbon fiber composite reinforcement according to claim 3, characterized in that: The pull rod (8) is threaded with a fourth nut (15) on both sides of the push block.

5. A detachable prestressed carbon fiber composite reinforcement according to claim 4, characterized in that: A strip opening (308) is provided on one side of the base plate (301), and one end of the composite rib (11) is movably disposed in the strip opening (308).

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