A CFRP plate horizontal direction secondary adjustment tensioning construction method and system

Abstract

The present invention discloses a construction method and system for secondary adjustment and tensioning of CFRP plates in the transverse direction, which belongs to the technical field of applying external prestressed reinforcement in civil engineering. By connecting the CFRP plates to the structural member to be reinforced, at least one end of the plates is connected by a CFRP plate forward tensioning anchoring device, and at least one CFRP plate transverse tensioning support device is arranged between the CFRP plates and the structural member to be reinforced, so that the oblique downward tension of the CFRP plates at both ends of the structural member to be reinforced provides it with a negative bending moment to resist the load and an axial pressure to suppress cracks. At the same time, the lifting force vertically transmitted by the CFRP plate transverse tensioning support device plays a role of elastic support. After the tensioning is completed, the prestress of the CFRP plates in the forward direction can be secondary adjusted by adjusting the cable adjuster of the CFRP plate forward tensioning anchoring device, and the prestress of the CFRP plates in the transverse direction can be secondary adjusted by rotating the locking nut of the CFRP plate transverse tensioning support device, so as to be suitable for different construction scenarios.

Description

Technical Field

[0001] The present invention belongs to the technical field of applying external prestressed reinforcement in civil engineering, and more specifically, relates to a CFRP plate secondary adjustment tensioning construction method and system in the transverse direction. Background Art

[0002] Concrete or steel structures in modern buildings, transportation, bridges and other engineering structures may be subject to load changes due to environmental erosion, material aging, changes in structural functions, or insufficient bearing capacity or cracking due to natural disasters, posing huge safety risks.

[0003] Current reinforcement methods for engineering components are categorized by their working principles: passive reinforcement and active reinforcement. Passive reinforcement involves directly adding tensile (or shear) reinforcement materials to the component's weak areas under tension (or shear), such as by gluing steel plates or high-strength fiber composites (carbon fiber, aramid fiber). The reinforcement material only bears the internal forces caused by live loads and subsequent dead loads, and its strain (stress) lags behind that of the original loaded component. In particular, when directly gluing high-strength fiber composites, the high tensile properties of the reinforcement material are difficult to fully utilize. Therefore, passive reinforcement methods cannot reduce deformation of the original structure or seal cracks. Active reinforcement involves applying prestress to the reinforcement material placed in the component's weak areas under tension (or shear). The reinforcement material actively bears the force, fundamentally resolving the strain (stress) lag problem of later-added reinforcement materials. This allows the reinforcement material's high tensile properties to be fully utilized, improving material utilization efficiency and significantly enhancing the flexural capacity and operating performance of the reinforced component.

[0004] Active reinforcement methods inevitably require the use of a supporting tensioning system. For example, Chinese utility model patent ZL202010702249.2 discloses a tensioning anchoring device for prestressed CFRP plate reinforced beams and its use method, comprising a CFRP plate, an anchoring assembly, and a tensioning assembly; the tensioning assembly comprises a tensioning bore, a second clamp, a limit plate, and a tensioning mechanism; and the contact surfaces of the telescopic plate and the second clamp are provided with serrations facing opposite directions. This patent applies prestress by installing two sets of clamps fixedly clamped at both ends of the CFRP plate in the two sets of bores to prevent eccentricity of the tensioning force, and the serrations between the telescopic plate and the second clamp cooperate with each other to achieve self-locking of the CFRP plate after the prestress is applied, thereby limiting the retraction of the CFRP plate.

[0005] In the use of the above-mentioned patent, although the CFPR plate is mechanically clamped by a clamp, the anchoring efficiency is high, the quality and performance are stable, and the high strength performance of the CFRP plate can be fully utilized, the jack can be removed after the prestress is applied, the integrated design and simple operation process improve work efficiency, but the prestress cannot be adjusted a second time after the construction is completed. If the prestress decreases after many years, or the prestress does not meet the ideal value after construction, it needs to be tensioned and adjusted again. At the same time, when arranging reinforcement materials with a larger eccentricity, due to the poor shear resistance of the CFRP plate, when subjected to an external force perpendicular to the plane of the CFRP plate, the carbon fiber reinforced composite material is prone to brittle fracture, resulting in the negative bending moment it can provide to the structural member to be reinforced being very limited. Therefore, it cannot effectively solve the technical problem of the mid-span deflection of the structural member to be reinforced. Summary of the Invention

[0006] In response to the deficiencies in the prior art, the present invention provides a method and system for secondary adjustment and tensioning construction of CFRP plates in the transverse direction, by connecting the CFRP plates to the structural member to be reinforced, at least one end of which is connected using a CFRP plate transverse tensioning anchoring device, and at least one CFRP plate transverse tensioning support device is arranged between the CFRP plates and the structural member to be reinforced, so that the oblique downward tension of the CFRP plates at both ends of the structural member to be reinforced provides it with a negative bending moment to resist the load and an axial pressure to suppress cracks, and at the same time, the lifting force vertically transmitted by the CFRP plate transverse tensioning support device plays the role of elastic support. After the tensioning is completed, the prestress of the CFRP plates can be secondary adjusted by the CFRP plate transverse tensioning anchoring device and the CFRP plate transverse tensioning support device, so as to solve the technical problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A CFRP plate secondary adjustment tensioning construction method in the transverse direction, comprising the following steps:

[0008] S1: combining the anchoring adjustment assembly and the longitudinal tensioning frame to form a CFRP plate longitudinal tensioning anchoring device, and combining the transverse tensioning assembly and the support adjustment assembly to form a CFRP plate transverse tensioning support device;

[0009] S2: fixing both ends of the CFRP plate to the structural member to be reinforced, wherein at least one end of the CFRP plate is fixed using a CFRP plate longitudinal tension anchoring device in conjunction with an anchor seat;

[0010] S3: Disposing at least one CFRP plate support and adjustment assembly between the CFRP plate and the structural member to be reinforced at a predetermined interval;

[0011] S4: tensioning the CFRP plate;

[0012] S5: dismantling the longitudinal tensioning frame and transverse tensioning components;

[0013] S6: Secondary adjustment of CFRP plate prestress;

[0014] As a preferred technical solution of the present invention, step S4 includes any one of the following steps:

[0015] S41: tensioning the CFRP plate by driving the CFRP anchor via the longitudinal tensioning frame, and fixing the anchor adjustment assembly after reaching the target prestress;

[0016] S42: Using the transverse tensioning assembly to drive the adjustment plate to tension the CFRP plate, and fixing the locking nut after the target prestress is reached;

[0017] S43: The CFRP plate is simultaneously tensioned by the longitudinal tensioning frame and the transverse tensioning assembly, and after the target prestress is reached, the anchor adjustment assembly and the locking nut are respectively fixed;

[0018] As a preferred technical solution of the present invention, step S6 includes any one of the following steps:

[0019] S61: adjusting the prestress of the CFRP plate by the cable adjuster;

[0020] S62: Adjust the prestress of the CFRP plate by turning the locking nut;

[0021] S63: The prestressing force of the CFRP plate is adjusted simultaneously by the cable adjuster and the rotating lock nut.

[0022] In order to realize the construction method of secondary adjustment and tensioning of CFRP plates in the transverse direction, the present invention also provides a secondary adjustment and tensioning system of CFRP plates in the transverse direction, including a structural member to be reinforced, a CFRP plate and an anchor seat, the two ends of the CFRP plate are respectively connected to the structural member to be reinforced through anchoring devices and the anchor seat, at least one of the two anchoring devices is a CFRP plate transverse tensioning anchoring device, and at least one CFRP plate transverse tensioning support device is also arranged between the CFRP plate and the structural member to be reinforced.

[0023] As a preferred technical solution of the present invention, the CFRP plate forward tensioning anchoring device includes an anchoring adjustment component, the anchoring adjustment component includes a steering block and a CFRP anchor, one end of the CFRP anchor is connected to the clamping plate assembly, the steering block is hingedly mounted on the anchoring seat, a cable adjuster is arranged between the steering block and the CFRP anchor, and the two ends of the cable adjuster are connected to a first connecting member and a second connecting member, the first connecting member is rotatably connected to the steering block by inserting a first bolt, and the second connecting member is rotatably connected to the clamping plate assembly by inserting a second bolt.

[0024] As a preferred technical solution of the present invention, the CFRP plate forward tensioning and anchoring device also includes a forward tensioning frame, and the forward tensioning frame includes a first mounting beam and a second mounting beam. The first mounting beam is clamped on the connecting block, and a forward traction screw is slid through the first mounting beam and the second mounting beam to form an "open" shape. Limiting nuts are provided at both ends of the forward traction screw for limiting. A hollow jack is sleeved on the forward traction screw, and the two ends of the hollow jack respectively abut against the limiting nut and the surface of the second mounting beam away from the first mounting beam.

[0025] As a preferred technical solution of the present invention, the CFRP anchor abuts against a surface of the second mounting beam close to the first mounting beam.

[0026] As a preferred technical solution of the present invention, the second mounting beam is clamped on the second connecting member, and the CFRP anchor is located on a side of the second mounting beam away from the first mounting beam.

[0027] As a preferred technical solution of the present invention, the CFRP plate transverse tensioning support device includes a support adjustment component, and the support adjustment component includes a support rod, one end of the support rod is fixedly installed on the structural member to be reinforced, and the other end is provided with a base, and a transverse traction screw is provided on the base, and an adjustment plate is slidably installed on the transverse traction screw, and a locking nut for limiting the adjustment plate is also provided on the transverse traction screw.

[0028] As a preferred technical solution of the present invention, the transverse tensioning assembly includes a backing plate, which is located at an end of the transverse traction screw away from the base, and a tensioning jack is provided between the backing plate and the adjustment plate.

[0029] The present invention provides a CFRP plate secondary adjustment tensioning construction method and system in the transverse direction, which has the following beneficial effects:

[0030] 1. After the prestressing is completed, with the cooperation of the CFRP plate transverse tensioning support device, the oblique downward tension of the CFRP plate at both ends of the structural member to be reinforced provides it with negative bending moment to resist the load and axial pressure to suppress cracks. At the same time, the vertical lifting force transmitted by the CFRP plate transverse tensioning support device plays the role of elastic support, specifically solving the technical problem of mid-span deflection of the structural member to be reinforced.

[0031] 2. After the tensioning is completed, the prestress in the forward direction of the CFRP plate can be adjusted twice by adjusting the cable adjuster of the CFRP plate forward tensioning anchor device. The prestress in the transverse direction of the CFRP plate can be adjusted twice by rotating the locking nut of the CFRP plate transverse tensioning support device, so as to adapt to different construction scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of the initial state of the secondary adjustment tensioning system for the CFRP plate in the transverse direction provided in this embodiment;

[0033] Figure 2 A schematic structural diagram of the first CFRP plate longitudinal tensioning and anchoring device provided in this embodiment;

[0034] Figure 3 A schematic structural diagram of the second CFRP plate longitudinal tensioning anchoring device provided in this embodiment;

[0035] Figure 4 Provided for this embodiment Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0036] Figure 5 A schematic structural diagram of the CFRP plate transverse tensioning support device provided in this embodiment;

[0037] Figure 6 A schematic structural diagram of the completed state of the secondary adjustment tensioning system for the CFRP plate in the transverse direction provided in this embodiment;

[0038] Figure 7 Provided for this embodiment Figure 6 The enlarged structural diagram of the middle part B;

[0039] Figure 8 Provided for this embodiment Figure 6 Schematic diagram of the structure with the C part enlarged.

[0040] In the figure: 1, structural member to be reinforced; 2, CFRP plate; 3, CFRP plate longitudinal tension anchoring device; 30, anchoring adjustment assembly; 301, steering block; 302, first bolt; 303, first connecting member; 304, cable adjuster; 305, second connecting member; 306, second bolt; 307, clamping plate assembly; 308, connecting bolt; 309, CFRP anchor; 31, longitudinal tensioning frame; 311, limit Position nut; 312, first mounting beam; 313, forward traction screw; 314, second mounting beam; 315, hollow jack; 4, anchor seat; 5, CFRP plate transverse tensioning support device; 50, transverse tensioning assembly; 501, tensioning jack; 502, abutment plate; 51, support adjustment assembly; 511, support rod; 512, base; 513, transverse traction screw; 514, locking nut; 515, adjustment plate. DETAILED DESCRIPTION

[0041] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0042] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] refer to Figure 1-Figure 5 As shown, this embodiment provides a CFRP plate secondary adjustment tensioning construction method in the transverse direction, comprising the following steps:

[0045] S1: Figure 2 Figure 3 As shown, the anchoring adjustment assembly 30 and the longitudinal tensioning frame 31 are combined to form the CFRP plate longitudinal tensioning anchoring device 3, and the transverse tensioning assembly 50 and the support adjustment assembly 51 are combined to form the CFRP plate transverse tensioning support device 5;

[0046] S2: Figure 1 As shown, the two ends of the CFRP plate 2 are fixed on the structural member 1 to be reinforced, wherein at least one end of the CFRP plate 2 is fixed by using a CFRP plate longitudinal tension anchoring device 3 in conjunction with an anchoring seat 4;

[0047] S3: At least one of the following is provided between the CFRP plate 2 and the structural member to be reinforced 1 according to a predetermined spacing: Figure 4 Figure 5 The CFRP plate support adjustment assembly 51 shown;

[0048] S4: tensioning the CFRP plate 2;

[0049] S5: Figure 6-Figure 8 As shown, after the first tensioning is completed, the longitudinal tensioning frame 31 and the transverse tensioning assembly 50 are removed;

[0050] S6: Secondary adjustment of the prestress of the CFRP plate 2.

[0051] Wherein, step S4 includes any one of the following steps:

[0052] S41: Figure 2 Figure 3 As shown, the CFRP anchor 309 is driven by the longitudinal tensioning frame 31 to tension the CFRP plate 2, and the anchor adjustment assembly 30 is fixed after the target prestress is reached;

[0053] S42: Figure 4 Figure 5 As shown, the CFRP plate 2 is tensioned by the transverse tensioning assembly 50 driving the adjustment plate 515, and the locking nut 514 is fixed after the target prestress is reached;

[0054] S43: The CFRP plate 2 is tensioned simultaneously by the longitudinal tensioning frame 31 and the transverse tensioning assembly 50. After the target prestress is reached, the anchoring adjustment assembly 30 and the locking nut 514 are fixed respectively.

[0055] Wherein, step S6 includes any one of the following steps:

[0056] S61: Figure 7 As shown, the prestress of the CFRP plate 2 is adjusted by the cable adjuster 304;

[0057] S62: Figure 8 As shown, the prestress of the CFRP plate 2 is adjusted by rotating the locking nut 514;

[0058] S63: The prestress of the CFRP plate 2 is adjusted simultaneously by the cable adjuster 304 and the rotating locking nut 514.

[0059] like Figure 1 As shown, in order to facilitate the implementation of the above method, the present invention also provides a CFRP plate longitudinal and transverse secondary adjustment tensioning system, comprising a structural member to be reinforced 1, a CFRP plate 2 and an anchoring seat 4, the anchoring seat 4 is fixedly installed on the structural member to be reinforced 1, and both ends of the CFRP plate 2 are connected to the structural member to be reinforced 1 through anchoring devices and the anchoring seat 4 respectively, at least one of the two anchoring devices is a CFRP plate longitudinal tensioning anchoring device 3, and at least one CFRP plate transverse tensioning support device 5 is further provided between the CFRP plate 2 and the structural member to be reinforced 1, the CFRP plate 2 can be longitudinally tensioned by the CFRP plate longitudinal tensioning anchoring device 3, and the CFRP plate 2 can be transversely tensioned by the CFRP plate transverse tensioning support device 5, thereby achieving tensioning effects in two directions;

[0060] like Figure 2As shown, the CFRP plate forward tensioning anchoring device 3 is composed of an anchoring adjustment component 30 and a forward tensioning frame 31, wherein the anchoring adjustment component 30 includes a steering block 301 and a CFRP anchor 309, one end of the CFRP anchor 309 is connected to the splint component 307, and multiple groups of arranged bolt holes are provided on the splint component 307 and the anchor 309. The overlapping parts of the bolt holes of the splint component 307 and the bolt holes of the anchor 309 are fixed to the splint component 307 and the anchor 309 by inserting connecting bolts 308. By selecting the number of overlapping bolt holes of the splint component 307 and the bolt holes of the anchor 309, the combined length of the splint component 307 and the anchor 309 can be adjusted. , so that it can be adaptively adjusted when the CFRP plate 2 is installed and tensioned. The steering block 301 is hingedly installed on the anchor seat 4. The steering block 301 and the anchor seat 4 are rotatably connected so that the tilt angle between the CFRP plate 2 and the structural member 1 to be reinforced can be adjusted, so that the CFRP plate 2 is in the tensioning direction. A cable adjuster 304 is provided between the steering block 301 and the CFRP anchor 309. A secondary adjustment effect can be achieved by using the cable adjuster 304. The first connecting member 303 and the second connecting member 305 are connected at both ends of the cable adjuster 304. The first connecting member 303 is rotatably connected to the steering block 301 by inserting the first bolt 302. The second connecting member 305 is rotatably connected to the clamping plate assembly 307 by inserting the second bolt 306. By adopting the rotatable connection method, the angle of the CFRP plate 2 in the left and right directions can be adjusted, so that the CFRP plate 2 is in the tensioning direction; the forward tensioning frame 31 is detachable, including a first mounting beam 312 and a second mounting beam 314, wherein the second mounting beam 314 is a top and bottom halves spliced ​​together in a detachable manner and provided with a channel for installing the CFRP plate 2, the first mounting beam 312 is clamped on the connecting block 430, and the forward traction screw 313 is slidably passed through the first mounting beam 312 and the second mounting beam 314 to form an "open "-shaped, both ends of the forward traction screw 313 are provided with limit nuts 311 for limiting, and a hollow jack 315 is sleeved on the forward traction screw 313. The two ends of the hollow jack 315 respectively abut against the limit nuts 311 and the side of the second mounting beam 314 away from the first mounting beam 312. The CFRP anchor 309 abuts against the side of the second mounting beam 314 close to the first mounting beam 312. By extending the hollow jack 315, the hollow jack 315 drives the second mounting beam 314 to slide on the forward traction screw 313, so that the second mounting beam 314 drives the CFRP anchor 309 to move and tension the CFRP plate 2;

[0061] like Figure 4 Figure 5As shown, the CFRP plate transverse tensioning support device 5 is composed of a support adjustment component 51 and a transverse tensioning component 50. The support adjustment component 51 includes a strut 511. A plurality of struts 511 can be provided. One end of the strut 511 is fixedly mounted on the structural member 1 to be reinforced, and the other end is provided with a base 512. A transverse traction screw 513 is provided on the base 512. An adjustment plate 515 is slidably mounted on the transverse traction screw 513. The CFRP plate 2 is installed on a side of the adjustment plate 515 close to the base 512. A locking nut 514 for limiting the adjustment plate 515 is also provided on the transverse traction screw 513. The adjustment plate 515 is restricted from sliding upward by the provided locking nut 514. Figure 8 As described above, by rotating the locking nut 514, the locking nut 514 moves downward, so that the stacking adjustment plate 515 moves downward in the direction of the transverse traction screw 513, thereby performing secondary tension adjustment on the CFRP plate 2; Figure 4 Figure 5 As shown, the transverse tensioning assembly 50 includes a support plate 502, which is located at the end of the transverse traction screw 513 away from the base 512. A tensioning jack 501 is arranged between the support plate 502 and the adjustment plate 515. By extending the tensioning jack 501, the tensioning jack 501 drives the adjustment plate 515 to move downward, thereby realizing the tensioning of the CFRP plate 2. After the tensioning is completed, it is limited and fixed by the locking nut 514.

[0062] like Figure 3 As shown, in the case of the above structure, the installation positions of the CFRP anchor 309 and the second mounting beam 314 can be adjusted, and the second mounting beam 314 can be clamped on the second connecting member 305. The CFRP anchor 309 is located on the side of the second mounting beam 314 away from the first mounting beam 312. At this time, the second mounting beam 314 does not need to be provided with a channel for installing the CFRP plate 2.

[0063] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A method for secondary tensioning of a CFRP plate in the transverse direction, characterized in that: The following steps are involved: S1: combining the anchoring adjustment component (30) and the longitudinal tensioning frame (31) to form a CFRP plate longitudinal tensioning anchoring device (3), and combining the transverse tensioning component (50) and the support adjustment component (51) to form a CFRP plate transverse tensioning support device (5); S2: fixing both ends of the CFRP plate (2) to the structural member (1) to be reinforced, wherein at least one end of the CFRP plate (2) is fixed using a CFRP plate longitudinal tension anchoring device (3) in conjunction with an anchoring seat (4); S3: arranging at least one CFRP plate support adjustment assembly (51) between the CFRP plate (2) and the structural member to be reinforced (1) at a predetermined distance; S4: tensioning the CFRP plate (2); S5: dismantling the longitudinal tensioning frame (31) and the transverse tensioning assembly (50); S6: Secondary adjustment of the prestress of the CFRP plate (2); Step S6 includes any one of the following steps: S61: adjusting the prestress of the CFRP plate (2) by means of a cable adjuster (304); S62: adjusting the prestress of the CFRP plate (2) by rotating the locking nut (514); S63: Simultaneously adjusting the prestress of the CFRP plate (2) by means of the cable adjuster (304) and the rotating locking nut (514); The CFRP plate forward tension anchoring device (3) includes an anchoring adjustment component (30), the anchoring adjustment component (30) includes a steering block (301) and a CFRP anchor (309), one end of the CFRP anchor (309) is connected to a clamping plate component (307), the steering block (301) is hingedly mounted on the anchoring seat (4), a cable adjuster (304) is provided between the steering block (301) and the CFRP anchor (309), and the two ends of the cable adjuster (304) are connected to a first connecting member (303) and a second connecting member (305), the first connecting member (303) is rotatably connected to the steering block (301) by inserting a first bolt (302), and the second connecting member (305) is rotatably connected to the clamping plate component (307) by inserting a second bolt (306).

2. The CFRP plate secondary adjustment tensioning construction method in the transverse direction according to claim 1, characterized in that: Step S4 includes any one of the following steps: S41: driving the CFRP anchor (309) to tension the CFRP plate (2) via the longitudinal tensioning frame (31), and fixing the anchoring adjustment assembly (30) after reaching the target prestress; S42: Using the transverse tensioning assembly (50), the adjustment plate (515) is driven to tension the CFRP plate (2), and after the target prestress is reached, the locking nut (514) is fixed; S43: The CFRP plate (2) is tensioned simultaneously by the longitudinal tensioning frame (31) and the transverse tensioning assembly (50), and after the target prestress is reached, the anchoring adjustment assembly (30) and the locking nut (514) are fixed respectively.

3. A CFRP plate transverse secondary adjustment tensioning system, used to implement the CFRP plate transverse secondary adjustment tensioning construction method according to any one of claims 1 to 2, comprising a structural member to be reinforced (1), a CFRP plate (2) and an anchoring seat (4), wherein both ends of the CFRP plate (2) are connected to the structural member to be reinforced (1) through anchoring devices respectively cooperating with the anchoring seat (4), at least one of the two anchoring devices is a CFRP plate transverse tensioning anchoring device (3), and at least one CFRP plate support adjustment component (51) is further provided between the CFRP plate (2) and the structural member to be reinforced (1).

4. The CFRP plate secondary adjustment tensioning system in the transverse direction according to claim 3, characterized in that: The CFRP plate forward tensioning and anchoring device (3) further comprises a forward tensioning frame (31), the forward tensioning frame (31) comprising a first mounting beam (312) and a second mounting beam (314), the first mounting beam (312) being clamped on the connecting block (430), a forward traction screw (313) being slidably passed through the first mounting beam (312) and the second mounting beam (314) to form an "open" shape, both ends of the forward traction screw (313) being provided with a limiting nut (311) for limiting, a hollow jack (315) being sleeved on the forward traction screw (313), and both ends of the hollow jack (315) respectively abutting against the limiting nut (311) and a surface of the second mounting beam (314) away from the first mounting beam (312).

5. The CFRP plate secondary adjustment tensioning system in the transverse direction according to claim 4, characterized in that: The CFRP anchor (309) abuts against a surface of the second mounting beam (314) close to the first mounting beam (312).

6. The CFRP plate secondary adjustment tensioning system in the transverse direction according to claim 4, characterized in that: The second mounting beam (314) is clamped on the second connecting member (305), and the CFRP anchor (309) is located on a side of the second mounting beam (314) away from the first mounting beam (312).

7. The CFRP plate secondary adjustment tensioning system in the transverse direction according to claim 3, characterized in that: The CFRP plate transverse tensioning support device (5) comprises a support adjustment assembly (51), wherein the support adjustment assembly (51) comprises a support rod (511), one end of the support rod (511) is fixedly mounted on the structural member to be reinforced (1), and the other end is provided with a base (512), a transverse traction screw rod (513) is provided on the base (512), an adjustment plate (515) is slidably mounted on the transverse traction screw rod (513), and a locking nut (514) for limiting the adjustment plate (515) is also provided on the transverse traction screw rod (513).

8. The CFRP plate secondary adjustment tensioning system in the transverse direction according to claim 7, characterized in that: The transverse tensioning assembly (50) comprises a support plate (502), the support plate (502) being located at one end of the transverse traction screw (513) away from the base (512), and a tensioning jack (501) being provided between the support plate (502) and the adjustment plate (515).

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