Prestressed carbon fiber cloth tensioning and anchoring device suitable for rectangular wood beam

Abstract

The utility model discloses a prestressed carbon fiber cloth tensioning and anchoring device suitable for a rectangular wood beam. The prestressed carbon fiber cloth tensioning and anchoring device comprises a tensioning and anchoring assembly installed at the column end, a fixing plate and an upper clamping plate. During installation, the assembly is fixed to a column through high-strength bolts, and one end of the carbon fiber cloth penetrates through the concave plate on the face column side of the tensioning bottom plate, is pulled out of the lower portion of the tensioning bottom plate and is clamped by the clamping plate after winding around the tensioning bottom plate. During tensioning, the jack acts on the lower portion of the upper clamping plate, the clamping end of the carbon fiber cloth can move upwards, after the tensioning distance is reached, the positioning bolt is used for limiting, and tensioning anchoring is completed. According to the device, the assemblies are installed on the two sides of the column, the tensioning device is arranged on the tensioning bottom plate, punching in the beam or the column to damage the original structure is not needed while the rectangular beam is repaired and reinforced, and the device is worthy of application and popularization in the existing market.

Description

Technical Field

[0001] The present technology relates to the technical field related to prestressed reinforced wood structures, and in particular to a prestressed carbon fiber cloth tensioning and anchoring device suitable for rectangular wood beams. Background Art

[0002] Among ancient Chinese buildings, wooden structures are the most common type of structure. However, due to issues such as material aging, environmental corrosion, natural disasters, and construction quality, wooden structural components need to be reinforced. Prestressed carbon fiber cloth reinforcement technology, as a new type of reinforcement technology, can give full play to the lightweight and high-strength characteristics of carbon fiber cloth, greatly improve the strength of wooden structural components, effectively reduce stress and deflection deformation, and improve structural bearing capacity and durability. The current domestically developed prestressed carbon fiber cloth tensioning and anchoring system is still in the preliminary research stage. Existing tensioning and anchoring devices generally require drilling holes in the original structure for anchoring, which not only damages the original appearance of the wooden structure, but also reduces the strength of the wooden structural components through the holes left behind. Therefore, there is an urgent need for a carbon fiber cloth tensioning and anchoring device suitable for rectangular wooden beams to solve the current problems. Summary of the Invention

[0003] The problem to be solved by this technology is to address the shortcomings of the above-mentioned existing technologies and provide a carbon fiber cloth tensioning and anchoring device suitable for rectangular wooden beams. By installing fixing plates and tensioning base plates on both sides of the column, the tensioning and anchoring device is fixed to the column end. By arranging splints and positioning devices on the tensioning base plate, the tensioning and anchoring of the carbon fiber cloth is achieved. The purpose of repairing and reinforcing rectangular wooden beams without drilling holes in the wooden beams or columns to damage the original structure is achieved.

[0004] To achieve the above technical objectives, the technical solution adopted by this technology is: a prestressed carbon fiber cloth tensioning and anchoring device suitable for rectangular wooden beams, comprising a fixing plate, a tensioning anchor assembly and an upper clamping plate; the tensioning anchoring assembly comprises a tensioning base plate, a lower clamping plate, a positioning threaded column, a positioning device, a positioning bolt and a concave plate; through grooves are opened on both sides of the tensioning base plate; the lower clamping plate is located at the front side of the tensioning base plate; connecting ears are provided at both sides of the lower clamping plate; the connecting ears pass through the through grooves and are located at the back side of the tensioning base plate, so that the lower clamping plate can slide up and down relative to the tensioning base plate; the positioning threaded column is fixedly connected to the top surface of the lower clamping plate; the positioning device is located at the front side of the tensioning base plate and is fixedly connected to the tensioning base plate; after the positioning threaded column passes through the positioning device, it is limited by positioning bolts; the concave plate is located at the back side of the tensioning base plate; the two sides of the concave plate are fixedly connected to the tensioning base plate; a concave gap is provided between the concave plate and the back side of the tensioning base plate;

[0005] During the tensioning and anchoring construction, the fixed plate is located on the outside of the column, and the tensioning base plate is located on the inside of the column; the fixed plate and the tensioning base plate are fixedly connected by high-strength bolts; after the carbon fiber cloth is laid along the bottom surface of the rectangular wooden beam, it is passed through the concave gap from the top of the concave plate, and is clamped by the lower plywood and the upper plywood after passing the bottom end of the tensioning base plate; the lower plywood and the upper plywood are fixedly connected by plywood bolts to form a clamping end of the carbon fiber cloth; during tensioning, the jack acts on the bottom surface of the upper plywood to move the clamping end of the carbon fiber cloth upward. After reaching the tensioning distance, the positioning bolts are used to limit the position to complete the tensioning and anchoring.

[0006] As a technical solution to further improve this technology, fixed through holes are provided on both sides of the fixed plate; fixed connection holes are provided at corresponding positions of the tensioning base plate; the high-strength bolts pass through the fixed connection holes and the fixed through holes in sequence to fix the fixed plate and the tensioning base plate.

[0007] As a technical solution for further improving the present technology, the four corners of the lower clamping plate are provided with clamping plate threaded holes; the corresponding positions of the upper clamping plate (2) are provided with clamping plate through holes; the clamping plate bolts pass through the clamping plate through holes and the clamping plate threaded holes in sequence to fix the upper clamping plate and the lower clamping plate together.

[0008] As a further improved technical solution of the present technology, the front end surface of the lower clamping plate is provided with a clamping groove; the rear end surface of the upper clamping plate is provided with a clamping groove.

[0009] Through the above technical solution, a fixing plate and a tensioning base plate are installed on the right end column of the wooden beam to be reinforced by high-strength bolts. After the carbon fiber cloth is laid along the bottom surface of the rectangular wooden beam, it passes through the concave gap from the top of the concave plate, passes through the bottom end of the tensioning base plate, and is clamped by the lower and upper plywood. During tensioning, the jack acts on the bottom surface of the upper plywood to move the clamping end of the carbon fiber cloth upward. After reaching the tensioning distance, the positioning bolts are used to limit the position to complete the tensioning anchoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The specific implementation of this technology will be further described below with reference to the accompanying drawings.

[0011] Figure 1 : Schematic diagram of the installation of the tensioning and anchoring device of embodiment 1 of the present technology.

[0012] Figure 2 : Schematic diagram of the back side of the tensioned base plate of embodiment 1 of the present technology.

[0013] Figure 3 : Schematic diagram of the upper splint of embodiment 1 of the present technology.

[0014] Figure 4 : Schematic diagram of the lower splint and positioning threaded column of embodiment 1 of the present technology.

[0015] Figure 5 : Schematic diagram of the concave plate of embodiment 1 of the present technology. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-5 This application is described in further detail.

[0017] Reference Figure 1-5 The cam 8 is fixedly mounted on the support frame 1 and the support frame 2 is fixedly mounted on the support frame 1 and the support frame 2 is fixedly mounted on the support frame 1. The cam 8 is fixedly mounted on the support frame 1 and the support frame 2 is fixedly mounted on the support frame 1.

[0018] During the tensioning and anchoring construction, the fixed plate 1 is located on the outside of the column, and the tensioning base plate 3 is located on the inside of the column; the fixed plate 1 and the tensioning base plate 3 are fixedly connected by high-strength bolts 11; after the carbon fiber cloth is laid along the bottom surface of the rectangular wooden beam, it is passed through the concave gap 20 by the top of the concave plate 8, and is clamped by the lower plywood 4 and the upper plywood 2 after passing the bottom end of the tensioning base plate 3; the lower plywood 4 and the upper plywood 2 are fixedly connected by the plywood bolts 17 to form the clamping end of the carbon fiber cloth; during tensioning, the jack acts on the bottom surface of the upper plywood to move the clamping end of the carbon fiber cloth upward. After reaching the tensioning distance, the positioning bolts 7 are used to limit the position to complete the tensioning and anchoring.

[0019] As a preferred solution, in this embodiment, fixing through holes 13 are provided on both sides of the fixing plate 1; fixing connection holes 14 are provided at corresponding positions of the tensioning base plate 3; the high-strength bolts 11 pass through the fixing connection holes 14 and the fixing through holes 13 in sequence to fix the fixing plate 1 and the tensioning base plate 3.

[0020] As a preferred solution, in this embodiment, the four corners of the lower splint 4 are provided with splint threaded holes 15; the corresponding positions of the upper splint 2 are provided with splint through holes 16; the splint bolts 17 pass through the splint through holes 16 and the splint threaded holes 15 in sequence to fix the upper splint 2 and the lower splint 4 together.

[0021] As a preferred solution, in this embodiment, the front end surface of the lower clamping plate 4 is provided with a clamping groove 18; the rear end surface of the upper clamping plate 2 is provided with a clamping groove 18

[0022] This technology secures and prestresses the carbon fiber sheet by attaching a tensioning anchor to the column end. This reinforced structure boasts advantages such as light weight, quick and easy construction, and ease of dismantling. The reinforcement significantly increases the load-bearing capacity of the beam and effectively prevents further deformation. This technical solution offers excellent practicality and economic benefits, and has broad application prospects.

[0023] Although the present invention has been described in detail with reference to examples, the protection scope of the present technology is not limited thereto. Those skilled in the art can still modify the technical solution. Any modifications, equivalent replacements, improvements, etc. made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A prestressed carbon fiber cloth tensioning and anchoring device suitable for rectangular wooden beams, characterized by: The invention comprises a fixing plate (1), a tensioning anchor assembly and an upper clamping plate (2); the tensioning anchoring assembly comprises a tensioning base plate (3), a lower clamping plate (4), a positioning threaded column (5), a positioning device (6), a positioning bolt (7) and a concave plate (8); through grooves (9) are provided on both sides of the tensioning base plate (3); the lower clamping plate (4) is located on the front side of the tensioning base plate (3); connecting ears (10) are provided on both sides of the lower clamping plate (4); the connecting ears (10) pass through the through grooves (9) and are located on the back side of the tensioning base plate (3), so that the lower clamping plate (4) can be Slide up and down relative to the tensioning base plate (3); the positioning threaded column (5) is fixedly connected to the top surface of the lower clamping plate (4); the positioning device (6) is located on the front of the tensioning base plate (3) and is fixedly connected to the tensioning base plate (3); after the positioning threaded column (5) passes through the positioning device (6), it is limited by the positioning bolt (7); the concave plate (8) is located on the back of the tensioning base plate (3); both sides of the concave plate (8) are fixedly connected to the tensioning base plate (3); a concave gap (20) is provided between the concave plate (8) and the back of the tensioning base plate (3); During the tensioning and anchoring construction, the fixing plate (1) is located outside the column, and the tensioning base plate (3) is located inside the column; the fixing plate (1) and the tensioning base plate (3) are fixedly connected by high-strength bolts (11); after the carbon fiber cloth is laid along the bottom surface of the rectangular wooden beam, it is passed through the top of the concave plate (8) into the concave gap (20), and after passing through the bottom end of the tensioning base plate (3), it is clamped by the lower clamping plate (4) and the upper clamping plate (2); the lower clamping plate (4) and the upper clamping plate (2) are fixedly connected by the clamping plate bolts (17) to form the clamping end of the carbon fiber cloth; during tensioning, the jack acts on the bottom surface of the upper clamping plate (2), which can move the clamping end of the carbon fiber cloth upward, and after reaching the tensioning distance, the positioning bolts (7) are used to limit the position to complete the tensioning and anchoring.

2. The prestressed carbon fiber cloth tensioning and anchoring device for rectangular wooden beams according to claim 1, characterized in that: The fixing plate (1) is provided with fixing through holes (13) on both sides; the tensioning base plate (3) is provided with fixing connection holes (14) at corresponding positions; the high-strength bolts (11) pass through the fixing connection holes (14) and the fixing through holes (13) in sequence to fix the fixing plate (1) and the tensioning base plate (3).

3. The prestressed carbon fiber cloth tensioning and anchoring device for rectangular wooden beams according to claim 2, characterized in that: The lower clamping plate (4) is provided with clamping plate threaded holes (15) at the four corners; the upper clamping plate (2) is provided with clamping plate through holes (16) at the corresponding positions; the clamping plate bolts (17) pass through the clamping plate through holes (16) and the clamping plate threaded holes (15) in sequence to fix the upper clamping plate (2) and the lower clamping plate (4) together.

4. The prestressed carbon fiber cloth tensioning and anchoring device for rectangular wooden beams according to claim 3, characterized in that: The front end surface of the lower clamping plate (4) is provided with a clamping groove (18); the rear end surface of the upper clamping plate (2) is provided with a clamping groove (18).

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