Curved bonded prestressed carbon fiber cable reinforcing device and construction process thereof

Abstract

The present application belongs to the field of structure reinforcement, and particularly relates to a curved bonded prestressed carbon fiber cable reinforcing device and a construction process thereof, which comprises a carbon fiber cable, a fixed end anchoring assembly, a tension end anchoring assembly, a tensioning tool, a plurality of turning restrictors and a jack for cable force tensioning, both ends of the carbon fiber cable are fixed with anchorage devices, the fixed end anchoring assembly is used for consolidation with a component for facilitating mechanical conversion, and automatic centering and leveling during the tensioning process are simultaneously realized, the tension end anchoring assembly is consolidated with the component and is used for installing the tensioning tool to realize the application of prestress, the tensioning tool is used for realizing reverse tensioning of the carbon fiber cable to apply prestress, the carbon fiber cable passes through the plurality of turning restrictors, the turning restrictors are used for self-adaptive adjustment of the angle of the carbon fiber cable within a specified range, the angle of the carbon fiber cable is transitioned smoothly, and the carbon fiber cable is closely bonded to the surface of a component to be reinforced; and the technical problem that the existing reinforcing device cannot be applied to the reinforcement of arc-shaped (variable cross-section) components such as variable cross-section beams and continuous rigid frame bridges is solved.

Description

Technical Field

[0001] This invention belongs to the field of structural reinforcement technology, specifically relating to a curved bonded prestressed carbon fiber cable reinforcement device and its construction process. Background Technology

[0002] Many reinforced concrete bridges already in use are nearing or have exceeded their design service life, exhibiting phenomena such as beam bottom cracking and steel reinforcement corrosion, significantly reducing the original structure's load-bearing capacity and even rendering them unsafe. Demolition and reconstruction of old and unsafe bridges incurs a substantial economic burden and disrupts normal traffic operations. Therefore, reinforcement measures are typically implemented for old and unsafe bridges. Prestressed carbon fiber plate reinforcement of bridges is a relatively new technology. By applying prestress to the carbon fiber plates, their high tensile strength can be fully utilized. Compared to non-prestressed carbon fiber bonding reinforcement, it effectively increases the height of the compression zone of the reinforced component, enhances the component's load-bearing capacity, largely offsets beam deflection, closes existing cracks, and effectively prevents bond failure and premature carbon fiber peeling.

[0003] Currently, existing prestressed carbon fiber plate reinforcement devices and construction processes have the following shortcomings: 1. Due to the high axial tensile strength but low transverse shear and bending strength of carbon fiber plates, existing prestressed carbon fiber reinforcement devices cannot be used for the reinforcement of curved (variable cross-section) components such as variable cross-section beams and continuous rigid frame bridges; 2. The tensioning tonnage of prestressed carbon fiber plates is limited by the size of the tooling, resulting in a relatively low tensioning tonnage, typically 20-30 tons; 3. Existing prestressed carbon fiber reinforcement devices require pre-tensioning of the carbon fiber plate during the tensioning process. 4. The existing prestressed carbon fiber reinforcement device has a large working space, resulting in a large length between the tensioning seat and the beam end, which limits the range of prestress application and restricts the reinforcement effect; 5. When the span of the bridge to be reinforced is large and the elongation of the prestressed carbon fiber plate is large, a longer tensioning rod needs to be customized, which is costly; 6. The carbon fiber plate is prone to tearing under eccentric tension, and the existing eccentricity adjustment measures are arc surface contact, which has a limited adjustment range. Summary of the Invention

[0004] The purpose of this invention is to provide a curved bonded prestressed carbon fiber cable reinforcement device and its construction process, so as to solve the technical problem that existing prestressed carbon fiber reinforcement devices cannot be applied to the reinforcement of curved (variable cross-section) components such as variable cross-section beams and continuous rigid frame bridges.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A curved bonded prestressed carbon fiber cable reinforcement device includes a carbon fiber cable, a fixed end anchoring assembly, a tensioning end anchoring assembly, a tensioning fixture, several hollow jacks, and several steering restraints.

[0007] The carbon fiber cable is placed between the fixed end anchoring component and the tensioning end anchoring component. Anchors are fixed at both ends of the carbon fiber cable. The carbon fiber cable includes multiple layers of stacked carbon fiber plates.

[0008] The fixed-end anchoring assembly is used to install anchors and realize automatic centering and leveling during the tensioning process. The fixed-end anchoring assembly includes a fixed seat and a frame plate. The fixed seat can be fixed to the surface of the component to be reinforced, and the frame plate is fixed on the fixed seat. The frame plate is used to install anchors.

[0009] The tensioning end anchoring assembly is used to install tensioning fixtures and anchorages. The tensioning end anchoring assembly includes a tensioning seat, a protrusion, a constraint rod, and a hinged connecting plate. The tensioning seat can be fixed to the surface of the component to be reinforced. The protrusion is fixed on the tensioning seat. There are several constraint rods. One end of the constraint rod is fixed on the hinged connecting plate, and the other end of the constraint rod passes through and slides on the protrusion. The end of the constraint rod is provided with a nut to prevent the constraint rod from detaching from the protrusion. The hinged connecting plate is located between the tensioning seat and the fixed seat. The hinged connecting plate is used to install the anchorage.

[0010] The tensioning fixture is used to apply prestress to the carbon fiber cable by reverse tensioning. The tensioning fixture includes a first connector, a second connector, and several tension rods. The first connector is fixedly connected to the protrusion and the tensioning seat. The second connector is fixedly connected to the hinged connecting plate. Several tension rods are symmetrically arranged on the first connector and the second connector. The tension rods are sequentially inserted through and slidably installed on the first connector, the second connector, and the hollow jack. Nuts are provided at both ends of the tension rods.

[0011] The hollow jack is used to move the second connecting piece toward the tensioning seat;

[0012] Several steering restraints are installed between the tensioning seat and the fixing seat. The carbon fiber cable passes through several steering restraints in sequence. The steering restraints are used to adaptively adjust the angle of the carbon fiber cable within a specified range, so that the angle transition of the carbon fiber cable is smooth and closely fits the surface of the component to be reinforced.

[0013] The technical principle of this invention is as follows:

[0014] After installing the carbon fiber cable, fixing seat, tensioning seat, tensioning fixture, hollow jack, and several steering restraints, start the hollow jack. The output end of the hollow jack pushes the second connecting piece of the tensioning fixture to slide towards the tensioning seat on the tensioning rod. The second connecting piece drives the anchor and restraint rod connected to it to move towards the tensioning seat. Under the action of the hollow jack and several steering restraints, the carbon fiber cable gradually tightens and adheres to the surface of the component to be reinforced.

[0015] Furthermore, the steering restraint includes an arc-shaped groove plate and two fixing plates. The outer arc surface of the arc-shaped groove plate can fit against the surface of the component to be reinforced. The outer arc surface of the arc-shaped groove plate is provided with a groove that matches the carbon fiber cable. The carbon fiber cable can be embedded in the groove. The inner arc surface of the arc-shaped groove plate is provided with a stiffening plate. The two fixing plates are symmetrically arranged on both sides of the arc-shaped groove plate. The two fixing plates and the stiffening plates are connected by a pin. The arc-shaped groove plate and the two fixing plates can be fixed to the surface of the component to be reinforced by anchor bolts.

[0016] Furthermore, the anchor includes multiple layers of clamps, each layer clamping one or more carbon fiber plates, with structural adhesive applied between the clamps and each carbon fiber plate, and tightened by bolts.

[0017] Furthermore, the fixed seat and the frame plate are connected by tenon and mortise welding, and an anchor is fixed between the fixed seat and the frame plate by a pin.

[0018] Furthermore, the first connector is fastened to the protrusion, and the first connector is fixed to the tensioning seat by bolts; the second connector is fastened to the hinged connecting plate, and the second connector is fixed to the hinged connecting plate by bolts.

[0019] A construction process for a curved bonded prestressed carbon fiber cable reinforcement device includes the following steps:

[0020] Step 1: Locate and mark the lines on the surface of the component to be reinforced, and then treat the surface of the component to be reinforced;

[0021] Step 2: Plant anchor bolts at both ends of the component to be reinforced and install the tension end anchoring assembly and the fixed end anchoring assembly;

[0022] Step 3: Install the two anchors onto the fixed end anchoring assembly and the tensioning end anchoring assembly, respectively;

[0023] Step 4: Install both ends of the carbon fiber cable onto the two anchors respectively;

[0024] Step 5: Design the spacing of each steering restraint according to the actual working conditions, install the steering restraint on the surface of the component to be reinforced, and pass the carbon fiber cable through each steering restraint in sequence.

[0025] Step Six: Install the tensioning fixture and hollow jack onto the tensioning end anchoring assembly;

[0026] Step 7: Start the hollow jack for pre-tensioning, observe the gap between the carbon fiber cable and the surface of the component to be reinforced, and observe whether there is obvious bending of the carbon fiber cable. If the gap is reasonable, proceed to the next step. If the gap is not reasonable, readjust the position of each steering gear and repeat Step 7.

[0027] Step 8: After the pre-tensioning is correct, retract the output end of the hollow jack, loosen the carbon fiber cable, and apply structural adhesive between each layer of carbon fiber plate and on the bonding surface between the carbon fiber cable and the component to be reinforced.

[0028] Step 9: Tensioning, while the hollow jack is being raised, the nut on the constraint rod is simultaneously screwed in;

[0029] Step 10: After tensioning is completed, fix each steering restraint to the surface of the component to be reinforced by planting anchor bolts, and then disassemble the tensioning fixture.

[0030] Furthermore, the spacing between each steering restraint is 1-3m.

[0031] Furthermore, the gap between the carbon fiber cable and the surface of the component to be reinforced is 3-5 mm.

[0032] Compared with the prior art, the present invention has the following beneficial technical effects:

[0033] 1. This invention is applicable to the reinforcement of curved (variable cross-section) components with carbon fiber cables. By setting a steering constraint, the angle of the carbon fiber cable can be adjusted within a specified range, so that the angle transition of the carbon fiber cable is smooth and can closely adhere to the surface of the curved (variable cross-section) component to be reinforced without causing bending or damage to the carbon fiber cable, thus achieving effective application of curved prestress.

[0034] 2. This invention improves the structure of the tensioning fixture, allowing the number of jacks on the fixture to be adjusted according to actual working conditions, thus enabling it to handle large-tonnage prestressed tensioning and expanding the applicability of the prestressed carbon fiber cable reinforcement device. Furthermore, the improved tensioning fixture has a more compact structure, better safety, is easier to construct, and has lower production costs.

[0035] 3. The present invention adopts a reverse tensioning method. Compared with the prior art, there is no need to reserve working space for the carbon fiber cable tensioning process. The tensioning seat can be close to the end of the component to be reinforced, which expands the range of prestress application and improves the reinforcement effect of the carbon fiber cable.

[0036] 4. During construction, the jacks and tension rods of the tensioning fixture do not occupy the positions of the tensioning seat and the fixing seat for planting anchor bolts, which reduces the difficulty of construction and improves the reliability of anchor bolt anchoring.

[0037] 5. This invention is applicable to the reinforcement of beam bridges of various spans. The length of the tension rod is not limited by the span of the beam bridge, and the tension rod can be reused, which greatly reduces the construction cost.

[0038] 6. The anchor in this invention is an ear plate type anchor. The anchor is connected to the fixed seat through a pin shaft, which can adaptively adjust the centering over a wide range and eliminate the eccentric angle. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0040] Figure 2 This is a partial structural diagram of the present invention and its disassembled form;

[0041] Figure 3 for Figure 1 Schematic diagram of the structure at point A in the middle; Detailed Implementation

[0042] The following detailed description illustrates the specific implementation method:

[0043] The reference numerals in the accompanying drawings include:

[0044] The components to be reinforced are: 1. Carbon fiber cable; 2. Anchor; 3. Fixed end anchoring assembly; 4. Fixed seat; 41. Frame plate; 42. Tensioning end anchoring assembly; 5. Tensioning seat; 51. Protrusion; 52. Constraint rod; 53. Hinged connecting plate; 54. Tensioning fixture; 6. First connector; 61. Second connector; 62. Tensioning rod; 63. Hollow jack; 7. Steering restraint; 8. Arc-shaped groove plate; 81. Fixed plate; 82. Stiffening plate; 83. Pin; 84.

[0045] Example

[0046] like Figure 1 As shown, a curved bonded prestressed carbon fiber cable reinforcement device includes a carbon fiber cable 2, a fixed end anchoring assembly 4, a tensioning end anchoring assembly 5, a tensioning fixture 6, several hollow jacks 7, and several steering restraints 8. In this embodiment, two hollow jacks 7 and three steering restraints 8 are selected.

[0047] The carbon fiber cable 2 is set between the fixed end anchoring component 4 and the tensioning end anchoring component 5. Anchors 3 are fixed at both ends of the carbon fiber cable 2. The carbon fiber cable 2 includes multiple layers of stacked carbon fiber plates. The anchor 3 includes multiple layers of clamps. Each layer of clamps holds one or more carbon fiber plates. Structural adhesive is applied between the clamps and the carbon fiber plates and they are tightened with bolts.

[0048] like Figure 2 As shown, the fixed-end anchoring assembly 4 is used to install the anchor 3, realizing automatic centering and leveling during the tensioning process. The fixed-end anchoring assembly 4 includes a fixed seat 41 and a frame plate 42. The fixed seat 41 and the frame plate 42 are connected by tenon and mortise welding. The overall strength of the fixed-end anchoring assembly 4 is increased and the processing cost is low. During construction, the fixed seat 41 is fixed to the surface of the component 1 to be reinforced by planting anchor bolts. An anchor 3 is placed between the fixed seat 41 and the frame plate 42, and the three are fixedly connected by positioning pins. In this embodiment, the anchor 3 is an ear plate type anchor 3. The anchor 3 is connected to the fixed seat 41 by a pin shaft 84, which can adaptively adjust the centering over a wide range and eliminate the eccentric angle.

[0049] like Figure 2 As shown, the tensioning end anchoring assembly 5 is used to install the tensioning fixture 6 and the anchor 3. The tensioning end anchoring assembly 5 includes a tensioning seat 51, a protrusion 52, a constraint rod 53, and a hinged connecting plate 54. The tensioning seat 51 and the protrusion 52 are welded together. There are several constraint rods 53. In this embodiment, two constraint rods 53 are used. One end of the two constraint rods 53 is symmetrical and threaded onto the hinged connecting plate 54. The other end of the two constraint rods 53 passes through and slides onto the protrusion 52. The ends of the two constraint rods 53 are provided with nuts to prevent the constraint rods 53 from detaching from the protrusion 52. The hinged connecting plate 54 is located between the tensioning seat 51 and the fixed seat 41. During construction, the tensioning seat 51 is fixed to the surface of the component 1 to be reinforced by planting anchor bolts. Another anchor 3 is placed in the hinged connecting plate 54 and fixed by positioning pins.

[0050] like Figure 2 As shown, the tensioning fixture 6 is used to apply prestress to the carbon fiber cable 2 by reverse tensioning. The tensioning fixture 6 includes a first connector 61, a second connector 62, and a tensioning rod 63. The first connector 61 can be fastened to the protrusion 52. The first connector 61 is fixedly connected to the protrusion 52 and the tensioning seat 51 by five bolts. The second connector 62 can be fastened to the hinged connecting plate 54. Both sides of the second connector 62 are fixedly connected to the hinged connecting plate 54 by bolts. There are several tensioning rods 63. In this embodiment, two are selected. The two tensioning rods 63 are symmetrically arranged on both sides of the two constraint rods 53. The tensioning rods 63 are sequentially inserted and slidably installed on the first connector 61, the second connector 62, and the hollow jack 7. Both ends of the tensioning rods 63 are threaded with nuts to prevent the tensioning rods 63 from slipping out.

[0051] The hollow jack 7 is used to move the second connector 62 toward the tensioning seat 51, so that the carbon fiber cable 2 is tensioned and adheres tightly to the surface of the component 1 to be reinforced.

[0052] When the carbon fiber cable 2 is tensioned, the output end of the hollow jack 7 extends out, pushing the second connecting piece 62 of the tensioning fixture 6 to slide on the tensioning rod 63. The second connecting piece 62 drives the hinged connecting plate 54 and the anchor 3 connected to it to move closer to the protrusion 52 along the constraint rod 53. The constraint rod 53 extends further out of the protrusion 52 until the carbon fiber cable 2 gradually tightens and adheres to the surface of the component 1 to be reinforced under the action of the hollow jack 7. At the same time as the hollow jack 7 is lifted, the nut at the end of the constraint rod 53 is screwed in, so that the carbon fiber cable 2 remains in contact with the surface of the component 1 to be reinforced. The tensioning fixture 6 in this embodiment, through its improved structure, can achieve reverse tensioning. During construction, the jacks and tension rods 63 of the tensioning fixture 6 do not occupy the positions of the tensioning seat 51 and the fixing seat 41 for planting anchor bolts. When installing the fixing seat 41 and the tensioning seat 51, there is no need to reserve working space for the tensioning process of the carbon fiber cable 2. The tensioning seat 51 can be close to the end of the component 1 to be reinforced, effectively expanding the range of prestress application, improving the reinforcement effect of the carbon fiber cable 2, reducing construction difficulty, and improving the anchor bolt anchoring reliability. The improved tensioning fixture 6 can adjust the number of tension rods 63 and hollow jacks 7 according to the actual working conditions, making it capable of large-tonnage prestressing tensioning and expanding the applicable range of the prestressed carbon fiber cable 2 reinforcement device. The improved tensioning fixture 6 has a more compact structure, good safety, is easy to construct, and has low production costs. After construction, the tensioning fixture 6 can be disassembled and reused. The length of the tension rod 63 is not limited by the span of the beam bridge, which greatly reduces construction costs.

[0053] like Figure 3 As shown, the steering restraint 8 includes an arc-shaped groove plate 81 and two fixing plates 82. The outer arc surface of the arc-shaped groove plate 81 can fit against the surface of the component 1 to be reinforced. The outer arc surface of the arc-shaped groove plate 81 has grooves that match the carbon fiber cable 2, and the carbon fiber cable 2 can be embedded in the grooves. The inner arc surface of the arc-shaped groove plate 81 is symmetrically welded with stiffening plates 83. The two fixing plates 82 are symmetrically located on both sides of the arc-shaped groove plate 81. The two fixing plates 82 and the stiffening plates 83 are connected by pins 84. Several through holes are symmetrically opened on both sides of the arc-shaped groove plate 81, and several strip holes are opened on both fixing plates 82. In this embodiment, there are twelve through holes and three strip holes. During construction, the arc-shaped groove plate 81 and the fixing plates 82 are fixed to the surface of the component 1 to be reinforced by planting anchor bolts into the through holes and strip holes.

[0054] By setting the steering restraint device 8, the angle of the carbon fiber cable 2 can be adaptively adjusted within a specified range, so that the angle transition of the carbon fiber cable 2 is smooth and it fits tightly against the surface of the arc-shaped (variable cross-section) component 1 to be reinforced, without causing bending or damage to the carbon fiber cable 2, thus realizing the effective application of curved prestress. This allows the prestressed carbon fiber cable 2 reinforcement device provided by the present invention to be used to reinforce arc-shaped (variable cross-section) components. With the cooperation of the steering restraint device 8 and the tensioning fixture 6, it can be applied to the reinforcement of beam bridges of various spans.

[0055] A construction process for a curved bonded prestressed carbon fiber cable reinforcement device includes the following steps:

[0056] Step 1: Locate and mark the lines on the surface of the component to be reinforced 1, and process the surface of the component to be reinforced 1;

[0057] Step 2: Plant anchor bolts at both ends of the component 1 to be reinforced and install the tension end anchoring assembly 5 and the fixed end anchoring assembly 4;

[0058] Step 3: Install the two anchors 3 onto the fixed end anchoring assembly 4 and the tensioning end anchoring assembly 5 respectively;

[0059] Step 4: Install both ends of the carbon fiber cable 2 onto the two anchors 3 respectively;

[0060] Step 5: Design the spacing of each steering restraint 8 according to the actual working conditions, and install the steering restraint 8 on the surface of the component 1 to be reinforced. In this embodiment, the spacing between each steering restraint 8 is 1-3m. Embed the carbon fiber cable 2 into the groove of each steering restraint 8.

[0061] Step 6: Install the tensioning fixture 6 and the hollow jack 7 onto the tensioning end anchoring assembly 5;

[0062] Step 7: Start the hollow jack 7 for pre-tensioning, observe the gap between the carbon fiber cable 2 and the surface of the component to be reinforced 1, and whether there is obvious bending of the carbon fiber cable 2. If the gap is reasonable, proceed to the next step. If the gap is unreasonable, adjust the position of each steering gear and repeat step 7. In this embodiment, the reasonable gap between the carbon fiber cable 2 and the surface of the component to be reinforced 1 is 3-5mm.

[0063] Step 8: After the pre-tensioning is correct, the output end of the hollow jack 7 is retracted, the carbon fiber cable 2 is released, and structural adhesive is applied between each layer of carbon fiber cable plate and on the mating surface between the carbon fiber cable 2 and the component to be reinforced 1.

[0064] Step 9: Perform tensioning. While the hollow jack 7 is being lifted, the nut on the constraint rod 53 is simultaneously screwed in.

[0065] Step 10: After tensioning, fix the arc-shaped groove plate 81 and fixing plate 82 of each steering restraint 8 to the surface of the component to be reinforced by planting anchor bolts, and disassemble the tensioning fixture 6.

[0066] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A curved, bonded, prestressed carbon fiber cable reinforcement device, characterized in that: Includes carbon fiber cable, fixed end anchoring assembly, tensioning end anchoring assembly, tensioning fixture, several hollow jacks and several steering restraints; The carbon fiber cable is placed between the fixed end anchoring component and the tensioning end anchoring component. Anchors are fixed at both ends of the carbon fiber cable. The carbon fiber cable includes multiple layers of stacked carbon fiber plates. The fixed-end anchoring assembly is used to install anchors and realize automatic centering and leveling during the tensioning process. The fixed-end anchoring assembly includes a fixed seat and a frame plate. The fixed seat can be fixed to the surface of the component to be reinforced, and the frame plate is fixed on the fixed seat. The frame plate is used to install anchors. The tensioning end anchoring assembly is used to install tensioning fixtures and anchorages. The tensioning end anchoring assembly includes a tensioning seat, a protrusion, a constraint rod, and a hinged connecting plate. The tensioning seat can be fixed to the surface of the component to be reinforced. The protrusion is fixed on the tensioning seat. There are several constraint rods. One end of the constraint rod is fixed on the hinged connecting plate, and the other end of the constraint rod passes through and slides on the protrusion. The end of the constraint rod is provided with a nut to prevent the constraint rod from detaching from the protrusion. The hinged connecting plate is located between the tensioning seat and the fixed seat. The hinged connecting plate is used to install the anchorage. The tensioning fixture is used to apply prestress to the carbon fiber cable by reverse tensioning. The tensioning fixture includes a first connector, a second connector, and several tension rods. The first connector is fixedly connected to the protrusion and the tensioning seat. The second connector is fixedly connected to the hinged connecting plate. Several tension rods are symmetrically arranged on the first connector and the second connector. The tension rods are sequentially inserted through and slidably installed on the first connector, the second connector, and the hollow jack. Nuts are provided at both ends of the tension rods. The hollow jack is used to move the second connecting piece toward the tensioning seat; Several steering restraints are installed between the tensioning seat and the fixed seat. The carbon fiber cable passes through several steering restraints in sequence. The steering restraints are used to adaptively adjust the angle of the carbon fiber cable within a specified range, so that the angle transition of the carbon fiber cable is smooth and closely fits the surface of the component to be reinforced. The steering restraint includes an arc-shaped groove plate and two fixing plates. The outer arc surface of the arc-shaped groove plate can fit against the surface of the component to be reinforced. The outer arc surface of the arc-shaped groove plate is provided with grooves that match the carbon fiber cable. The carbon fiber cable can be embedded in the grooves. The inner arc surface of the arc-shaped groove plate is provided with stiffening plates. The two fixing plates are symmetrically arranged on both sides of the arc-shaped groove plate. The two fixing plates and the stiffening plates are connected by pins. The arc-shaped groove plate and the two fixing plates can be fixed to the surface of the component to be reinforced by anchor bolts.

2. The curved bonded prestressed carbon fiber cable reinforcement device as described in claim 1, characterized in that: The anchor includes multiple layers of clamps, each layer clamping one or more carbon fiber plates. Structural adhesive is applied between the clamps and each carbon fiber plate, and they are tightened with bolts.

3. The curved bonded prestressed carbon fiber cable reinforcement device as described in claim 1, characterized in that: The fixed base and the frame plate are connected by mortise and tenon welding, and an anchor is fixed between the fixed base and the frame plate by a pin.

4. The curved bonded prestressed carbon fiber cable reinforcement device as described in claim 1, characterized in that: The first connector is fastened to the protrusion and is fixed to the tensioning seat by bolts; the second connector is fastened to the hinged connecting plate and is fixed to the hinged connecting plate by bolts.

5. A construction process using the curved bonded prestressed carbon fiber cable reinforcement device as described in claim 1, comprising the following steps: Step 1: Locate and mark the lines on the surface of the component to be reinforced, and then treat the surface of the component to be reinforced; Step 2: Plant anchor bolts at both ends of the component to be reinforced and install the tension end anchoring assembly and the fixed end anchoring assembly; Step 3: Install the two anchors onto the fixed end anchoring assembly and the tensioning end anchoring assembly, respectively; Step 4: Install both ends of the carbon fiber cable onto the two anchors respectively; Step 5: Design the spacing of each steering restraint according to the actual working conditions, install the steering restraint on the surface of the component to be reinforced, and pass the carbon fiber cable through each steering restraint in sequence. Step Six: Install the tensioning fixture and hollow jack onto the tensioning end anchoring assembly; Step 7: Start the hollow jack for pre-tensioning, observe the gap between the carbon fiber cable and the surface of the component to be reinforced, and observe whether there is obvious bending of the carbon fiber cable. If the gap is reasonable, proceed to the next step. If the gap is not reasonable, readjust the position of each steering gear and repeat Step 7. Step 8: After the pre-tensioning is correct, retract the output end of the hollow jack, loosen the carbon fiber cable, and apply structural adhesive between each layer of carbon fiber plate and on the bonding surface between the carbon fiber cable and the component to be reinforced. Step 9: Tensioning, while the hollow jack is being raised, the nut on the constraint rod is simultaneously screwed in; Step 10: After tensioning is completed, fix each steering restraint to the surface of the component to be reinforced by planting anchor bolts, and then disassemble the tensioning fixture.

6. The construction process of the curved bonded prestressed carbon fiber cable reinforcement device as described in claim 5, characterized in that: In step five, the spacing between each steering restraint is 1-3m.

7. The construction process of the curved bonded prestressed carbon fiber cable reinforcement device as described in claim 5, characterized in that: In step seven, the gap between the carbon fiber cable and the surface of the component to be reinforced is 3-5 mm.

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