Carbon fiber cloth reinforcing prestress construction device

Abstract

The invention provides a carbon fiber cloth reinforcing prestress construction device, and belongs to the technical field of building reinforcement, the carbon fiber cloth reinforcing prestress construction device comprises a building bottom plate and carbon fiber cloth, a tensioning end drill hole and a fixing end drill hole are formed in the preset position of the bottom of the building bottom plate, and the carbon fiber cloth reinforcing prestress construction device further comprises a tensioning assembly, a fixing assembly and a sensing assembly; the stress state of the carbon fiber cloth is monitored in real time through the stress change of the balls, when wrinkles or aging damage of the carbon fiber cloth occurs, the wrinkles or aging damage can be found in time, an alarm can be given out, the construction quality and reliability are improved, and structural potential safety hazards are avoided; the friction resistance between the rolling balls and the carbon fiber cloth in the tensioning process is reduced through rotating connection of the rolling balls, and the sensitivity and the response speed of the sensing assembly are improved; through cooperative work of the tensioning assembly and the fixing assembly, efficient reinforcement of a building structure and optimization of the size of the device are achieved, the device is lighter and easier to carry and install, the sensing assembly is assisted, the construction difficulty is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building reinforcement, in particular to a carbon fiber cloth reinforced prestressed construction device. Background Art

[0002] Carbon fiber cloth reinforced concrete structure is a new type of concrete structure reinforcement method. Compared with the traditional reinforcement method, it uses high-performance adhesives to stick carbon fiber cloth on the surface of building structural components to form external reinforcement, so that the two work together to improve the bending and shear bearing capacity of structural components, thereby achieving the effect of reinforcing the building. With the deepening of carbon fiber cloth reinforcement research, in recent years, the carbon fiber cloth reinforcement method has gradually changed from ordinary direct pasting to prestressed reinforcement. Applying prestress can more effectively exert the high-strength performance of carbon fiber cloth and improve the reinforcement effect.

[0003] However, the existing carbon fiber cloth prestressing device uses a large tensioning device, which requires a large construction site and has low construction efficiency. In addition, during the construction process of carbon fiber cloth reinforcement, the clamping part of the tensioning end is the key position where the carbon fiber cloth is stressed. When the jack moves at an uneven speed, the clamping part will first feel the uneven stretching, which will then cause breakage, wrinkles, etc., which will further affect the reinforcement effect of the carbon fiber cloth. Therefore, high requirements are placed on the workers' techniques. In addition, carbon fiber cloth, as a high-strength, high-modulus composite material, is widely used in the field of structural reinforcement and repair. However, during long-term use, carbon fiber cloth may age or be damaged due to environmental factors (such as ultraviolet radiation, humidity changes, etc.) or mechanical stress, thereby creating safety hazards.

[0004] How to invent a carbon fiber cloth reinforced prestressed construction device to solve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a carbon fiber cloth reinforced prestressed construction device, aiming to solve the problems mentioned in the above background.

[0006] The present invention is achieved in that: The present invention provides a carbon fiber cloth reinforced prestressed construction device, comprising a building base plate and a carbon fiber cloth, wherein a tensioning end drilling hole and a fixed end drilling hole are provided at a predetermined position at the bottom of the building base plate, and further comprising: Tensioning assembly: The tensioning assembly is fixedly mounted on one end of the bottom of the building floor, and is used to apply tensioning force to one end of the carbon fiber cloth; Fixing assembly: The fixing assembly is fixedly installed at the other end of the bottom of the building floor and is consistent with the center line of the tensioning assembly. The fixing assembly is used to fix the other end of the carbon fiber cloth; Sensing component: The sensing component is arranged inside the tensioning component, and the sensing component can sense the wrinkles at the tensioning end of the carbon fiber cloth.

[0007] Preferably, the tensioning assembly includes a tensioning end anchor plate, an anchor bolt, a tensioning end protective shell, a jack, a tensioning bracket, an adjusting block and two tensioning end clamping blocks, the tensioning bracket is slidably plugged into the tensioning end anchor plate, the upper side wall of the tensioning bracket is fixedly connected to the limiting block, the tensioning bracket is sequentially provided with a tensioning port, an adjusting cavity and a limiting cavity, the adjusting block is located on both sides of the adjusting cavity and is fixedly connected to the tensioning bracket, the interior of the tensioning end anchor plate is provided with a sliding groove matching the front end of the tensioning bracket, the tensioning end protective shell is slidably installed between the tensioning end anchor plate and the limiting block after the tensioning bracket is plugged into the tensioning end anchor plate, the tensioning end anchor plate and the tensioning end protective shell are correspondingly provided with waist holes, the anchor bolt passes through the waist hole and is implanted into the tensioning end drill hole to fix the tensioning assembly.

[0008] Preferably, a fixing screw is fixedly connected to one side of the tensioning bracket away from the fixing component, a positioning piece matching the fixing screw is fixedly provided on the tensioning end anchor plate, a jack is installed on the side wall of the tensioning end anchor plate close to the fixing component, a through hole is provided inside the limit block, and the output end of the jack passes through the through hole and is fixed to the limit block through a nut.

[0009] Preferably, a supporting ring is fixedly provided on the output end of the jack to support the side wall of the limit block. After the tensioning bracket is tensioned by the jack, the end of the fixed screw passes through the positioning piece and cooperates with the fixing nut to fix the position of the limit block and the anchor plate at the tensioning end. The jack is detachable.

[0010] Preferably, a limit assembly is provided in the adjusting cavity, and the limit assembly includes a limit cylinder provided in the adjusting cavity, the internal rotation clamping of the limit cylinder is connected to the limit shaft, the adjusting block is provided with a limit groove for limiting the end of the limit shaft, the adjusting block is threadedly connected with an adjusting screw, the end of the adjusting screw is fixedly connected to a limit ring, the end of the adjusting screw passes through the limit groove and is rotationally clamped with the limit shaft through the limit ring, and the tensioning end protective shell is provided with a notch matching the adjusting screw and the tensioning bracket, and one end of the notch is through-set.

[0011] Preferably, mounting portions are provided at both ends of the tensioning end clamping blocks, one end of the carbon fiber cloth passes through the gap between the two tensioning end clamping blocks, is then wrapped around the two tensioning end clamping blocks for several turns, and then passes through the tensioning port, the two tensioning end clamping blocks are fixed into a whole by bolts, and then are integrally clamped in the interior of the limiting cavity.

[0012] Preferably, the fixing assembly includes a fixed end anchor plate, a fixed end protective shell and two fixed end clamping blocks, the upper side wall of the fixed end anchor plate is fixedly connected with a mounting beam, a card slot is provided at the bottom of the fixed end anchor plate, the other end of the carbon fiber cloth passes through the gap between the two fixed end clamping blocks, and then is wrapped around the two fixed end clamping blocks for several turns before passing through the fixed end anchor plate, the two fixed end clamping blocks are fixed into a whole by bolts, and then the whole is clamped in the card slot.

[0013] Preferably, a limiting component is also provided between the two mounting beams, and a notch matching the adjusting screw is provided on the fixed end protective shell, one end of the notch is through-set, and waist holes are correspondingly provided on the fixed end anchor plate and the fixed end protective shell, and the anchor bolt passes through the waist hole and is implanted into the fixed end drill hole to fix the fixed component.

[0014] Preferably, the sensing component includes an installation cavity, a movable cavity and a movable column. The installation cavity is arranged inside the tensioning end clamp, one end of the movable cavity passes through the side wall of the tensioning end clamp, and the other end is connected to the installation cavity, a mounting plate and a sensor are fixedly installed at the bottom of the installation cavity, a plurality of trigger plates are fixedly connected to the top of the sensor, and a plurality of spring plates are fixedly connected to the side of the mounting plate facing the sensor, the movable column is slidably arranged in the movable cavity, a ball is rotatably connected to the top of the movable column, and the movable column is elastically connected to the top of the inner wall of the movable cavity through a spring.

[0015] Preferably, the spring sheet is located directly below the movable column, the spring sheet and the trigger sheet in the same tensioning end clamp are arranged correspondingly, the movable columns in different tensioning end clamps are arranged alternately, the spring sheet and the trigger sheet are in conflict with each other when the upper end surface of the ball is flush with the surface of the tensioning end clamp, there is a gap between the spring sheet and the trigger sheet in the initial state, the trigger sheet is electrically connected to the sensor, and the sensor is connected to the external device through wireless communication.

[0016] The beneficial effects of the present invention are: The sensing component monitors the stress state of the carbon fiber cloth in real time through the stress changes of the ball. When the carbon fiber cloth is wrinkled or aged and damaged, it can be discovered in time and an alarm can be issued, thereby improving the construction quality and reliability and avoiding the occurrence of structural safety hazards. The setting of multiple spring pieces and trigger pieces, as well as the staggered arrangement of movable columns, expands the detection range and improves the accuracy and reliability of monitoring. The rotating connection of the ball reduces the friction resistance between the carbon fiber cloth and the tensioning process, thereby improving the sensitivity and response speed of the sensing component.

[0017] The coordinated work of the tensioning components and the fixing components realizes the efficient reinforcement of the building structure. The optimization of the device volume makes it lighter, easier to carry and install. The auxiliary sensing components reduce the difficulty of construction and improve work efficiency. The adjustment and pressing action of the limit components ensure the close adhesion between the carbon fiber cloth and the building structure. This close adhesion improves the reinforcement effect and avoids poor reinforcement effect caused by looseness or dislocation. The setting of the protective shell (tensioning end protective shell and fixed end protective shell) provides additional protection and support, ensuring the stability and safety of the reinforcement device. This stability helps to prevent the failure of the carbon fiber cloth prestressed reinforcement due to external force collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a carbon fiber cloth reinforced prestressed construction device during installation provided by the present invention; Figure 2 This is a front view structural schematic diagram of a carbon fiber cloth reinforced prestressed construction device during installation provided by the present invention; Figure 3 It is a schematic diagram of the tensioning end structure of a carbon fiber cloth reinforced prestressed construction device provided by the present invention after tensioning is completed; Figure 4 It is a schematic diagram of the overall structure of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Figure 5 It is a schematic cross-sectional structure diagram of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Figure 6 It is a schematic diagram of a partial explosion structure of a fixing assembly of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Figure 7It is a schematic diagram of a partial explosion structure of a tensioning assembly of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Figure 8 It is a structural schematic diagram of a tensioning end anchor plate and a tensioning bracket of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Fig. 9 It is a schematic diagram of the internal explosion structure of a tension bracket of a prestressed construction device reinforced with carbon fiber cloth provided by the present invention; Fig.10 It is a schematic cross-sectional structure diagram of a tensioning assembly of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Fig.11 The invention provides a carbon fiber cloth reinforced prestressed construction device Fig.10 The enlarged structural diagram at A in the middle; Fig.12 This is a schematic diagram of the structure of an induction component of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Fig.13 It is a schematic diagram of a local explosion structure of an induction component of a carbon fiber cloth reinforced prestressed construction device provided by the present invention; Fig.14 The present invention provides a schematic diagram of the cross-sectional structure of a sensor component during tensioning of a carbon fiber cloth reinforced prestressed construction device.

[0020] In the figure: 1. tensioning assembly; 2. fixing assembly; 3. tensioning end anchor plate; 4. jack; 5. tensioning bracket; 6. tensioning end clamp block; 7. movable column; 8. fixing screw; 9. mounting plate; 10. carbon fiber cloth; 11. building base plate; 21. fixed end anchor plate; 22. fixed end protective shell; 23. limiting cylinder; 24. adjusting screw; 25. fixed end clamp block; 31. anchor bolt; 32. tensioning end protective shell; 51. limiting block; 52. adjusting block; 53. adjusting cavity; 54. limiting cavity; 55. tensioning port; 61. mounting part; 62. mounting cavity; 63. movable cavity; 71. ball bearing; 72. spring; 81. fixing nut; 91. spring; 92. triggering piece; 93. sensor; 211. mounting beam; 231. limiting shaft; 241. limiting ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1, refer to Figure 1-Figure 9 A carbon fiber cloth reinforced prestressed construction device comprises a building base plate 11 and a carbon fiber cloth 10, wherein a tensioning end drilling hole and a fixed end drilling hole are provided at a predetermined position at the bottom of the building base plate 11, and further comprises: Tensioning assembly 1: The tensioning assembly 1 is fixedly mounted at one end of the bottom of the building base plate 11, and the tensioning assembly 1 is used to apply tensioning force to one end of the carbon fiber cloth 10; Fixing component 2: The fixing component 2 is fixedly installed at the other end of the bottom of the building base plate 11 and is consistent with the center line of the tensioning component 1. The fixing component 2 is used to fix the other end of the carbon fiber cloth 10; Sensing component: The sensing component is arranged inside the tensioning component 1, and the sensing component can sense the wrinkles at the tensioning end of the carbon fiber cloth 10.

[0023] Furthermore, the tensioning assembly 1 includes a tensioning end anchor plate 3, an anchor bolt 31, a tensioning end protective shell 32, a jack 4, a tensioning bracket 5, an adjustment block 52 and two tensioning end clamping blocks 6. The tensioning bracket 5 is slidably plugged into the tensioning end anchor plate 3. The upper side wall of the tensioning bracket 5 is fixedly connected to the limit block 51. The tensioning bracket 5 is sequentially provided with a tensioning port 55, an adjustment cavity 53 and a limit cavity 54. The adjustment block 52 is located on both sides of the adjustment cavity 53 and is fixedly connected to the tensioning bracket 5. The interior of the tensioning end anchor plate 3 is provided with a tensioning port 55, an adjustment cavity 53 and a limit cavity 54. The tensioning end protective shell 32 is slidably installed between the tensioning end anchor plate 3 and the limit block 51 after the tensioning bracket 5 is plugged into the tensioning end anchor plate 3. The tensioning end anchor plate 3 and the tensioning end protective shell 32 are correspondingly provided with waist holes. The anchor bolt 31 passes through the waist hole and is implanted into the tensioning end drill hole to fix the tensioning component 1. At this time, the tensioning end protective shell 32 can limit the tensioning component 1 on the one hand, and protect the tensioning component 1 on the other hand to avoid the failure of the prestressed reinforcement of the carbon fiber cloth 10 due to external force collision.

[0024] A fixing screw 8 is fixedly connected to one side of the tensioning bracket 5 away from the fixing component 2, and a positioning piece matching the fixing screw 8 is fixedly arranged on the tensioning end anchor plate 3. A jack 4 is installed on the side wall of the tensioning end anchor plate 3 close to the fixing component 2, and a through hole is arranged inside the limit block 51. The output end of the jack 4 passes through the through hole and is fixed to the limit block 51 through a nut. Driven by the jack 4, the tensioning bracket 5 can be moved through the limit block 51, and the tensioning degree of the carbon fiber cloth 10 can be controlled.

[0025] It should be noted that a supporting ring is fixedly provided on the output end of the jack 4 to support the side wall of the limit block 51. After the tensioning bracket 5 is tensioned by the jack 4, the end of the fixed screw 8 passes through the positioning piece and cooperates with the fixed nut 81 to fix the position of the limit block 51 and the tensioning end anchor plate 3. The jack 4 is detachable and can be removed after the tensioning operation is completed.

[0026] Furthermore, a limiting assembly is provided in the adjusting cavity 53, and the limiting assembly includes a limiting cylinder 23 provided in the adjusting cavity 53, the internal rotation clamping of the limiting cylinder 23 is connected to the limiting shaft 231, and a limiting groove for limiting the end of the limiting shaft 231 is provided on the adjusting block 52, and an adjusting screw 24 is threadedly connected to the adjusting block 52, and the end of the adjusting screw 24 is fixedly connected to the limiting ring 241, and the end of the adjusting screw 24 passes through the limiting groove and is rotatably connected to the limiting shaft 231 through the limiting ring 241, and the adjusting screw 24 is turned by turning the adjusting screw The rod 24 can adjust the position of the limiting cylinder 23. After the glue is applied to the carbon fiber cloth 10, the carbon fiber cloth 10 at the tensioning end can be pressed by the limiting cylinder 23. Under the action of the glue, the carbon fiber cloth 10 is bonded to the building base plate 11. The tensioning end protective shell 32 is provided with a notch matching the adjusting screw 24 and the tensioning bracket 5. One end of the notch is through-set. Through this setting, the tensioning end protective shell 32 can be easily installed without affecting the normal tensioning operation.

[0027] Both ends of the tensioning end clamp 6 are provided with mounting portions 61. One end of the carbon fiber cloth 10 passes through the gap between the two tensioning end clamps 6, and then passes through the tensioning port 55 after being wound around the two tensioning end clamps 6 for several turns. The two tensioning end clamps 6 are fixed into a whole by bolts, and then the whole is clamped in the limiting cavity 54. Through the cooperation of the mounting portion 61 and the limiting cavity 54, when the tensioning bracket 5 moves, the tensioning end clamp 6 will also move accordingly, thereby realizing the tensioning treatment of the carbon fiber cloth 10.

[0028] Furthermore, the fixing assembly 2 includes a fixed end anchor plate 21, a fixed end protective shell 22 and two fixed end clamps 25. The upper side wall of the fixed end anchor plate 21 is fixedly connected with a mounting beam 211. A card slot is provided at the bottom of the fixed end anchor plate 21. The other end of the carbon fiber cloth 10 passes through the gap between the two fixed end clamps 25, and then wraps around the two fixed end clamps 25 for several turns before passing through the fixed end anchor plate 21. The two fixed end clamps 25 are fixed into a whole by bolts, and then the whole is clamped in the card slot. This part is used to fix one end of the carbon fiber cloth 10.

[0029] A limiting component is also provided between the two mounting beams 211. By setting the limiting component, the position of the limiting cylinder 23 can be adjusted, and then the carbon fiber cloth 10 at the fixed end can be pressed. A notch matching the adjusting screw 24 is provided on the fixed end protective shell 22. One end of the notch is through-set. Waist holes are correspondingly provided on the fixed end anchor plate 21 and the fixed end protective shell 22. The anchor bolt 31 passes through the waist hole and is implanted into the fixed end drill hole to fix the fixed component 2. The function of the fixed end protective shell 22 is the same as that of the tensioning end protective shell 32.

[0030] In this embodiment, first, one end of the carbon fiber cloth 10 is passed through the gap between the two tensioning end clamps 6, and then wrapped around the two tensioning end clamps 6 for several turns, and then passed out from the tensioning port 55. The tensioning end clamp 6 is fixed into a whole by bolts, and the whole is clamped in the limiting cavity 54 to ensure that one end of the carbon fiber cloth 10 is firmly clamped. The output end of the jack 4 passes through the through hole of the limiting block 51 and is fixed to the limiting block 51 by a nut. The supporting ring of the jack 4 supports the side wall of the limiting block 51 to ensure that the limiting block 51 can move with the output end of the jack 4. The other end of the carbon fiber cloth 10 passes through the gap between the two fixed end clamps 25, and then wrapped around the two fixed end clamps 25 for several turns, and then passes out of the fixed end anchor plate 21. The fixed end clamp 25 is fixed into a whole by bolts, and the whole is clamped in the slot of the fixed end anchor plate 21 to ensure that one end of the carbon fiber cloth 10 is firmly fixed.

[0031] At the tensioning end, the tensioning bracket 5 is slidably inserted into the slide groove of the tensioning end anchor plate 3, and the tensioning end protective shell 32 is used to limit and protect it between the tensioning end anchor plate 3 and the limit block 51. The anchor bolt 31 passes through the waist holes on the tensioning end anchor plate 3 and the tensioning end protective shell 32, and is implanted in the tensioning end drill hole to fix the tensioning component 1 on the building structure. At the fixed end, the anchor bolt 31 passes through the waist holes on the fixed end anchor plate 21 and the fixed end protective shell 22, and is implanted in the fixed end drill hole to fix the fixed component 2 on the building structure. The anchor bolt 31 uses a chemical anchor bolt.

[0032] Start the jack 4, and use the thrust of its output end to push the limit block 51 and the tensioning bracket 5 to move, so as to realize the tensioning of the carbon fiber cloth 10. By turning the adjusting screw 24, the position of the limit cylinder 23 can be adjusted. After the glue is applied on the carbon fiber cloth 10, the limit cylinder 23 can press the carbon fiber cloth 10 at the tensioning end to ensure that it is bonded to the building structure. Similar to the tensioning component 1, a limit assembly is also arranged between the two mounting beams 211 of the fixed component 2. By adjusting the adjusting screw 24 in the limit assembly, the position of the limit cylinder 23 can be adjusted to press the carbon fiber cloth 10 at the fixed end to ensure that it is bonded to the building structure. The notch on the protective shell 32 at the tensioning end is convenient for the operation of the adjusting screw 24 and the tensioning bracket 5, and does not affect the normal tensioning operation.

[0033] After the tensioning is completed, the end of the fixing screw 8 passes through the positioning piece on the tensioning end anchor plate 3. At this time, the fixing nut 81 can be screwed on, and the fixing screw 8 and the fixing nut 81 form a match to fix the position of the limit block 51 and the tensioning end anchor plate 3. After the tensioning operation is completed, the jack 4 can be removed.

[0034] In summary, the tensioning component 1 and the fixing component 2 work together to achieve reinforcement of the building structure (building base 11) by tensioning and fixing the two ends of the carbon fiber cloth 10. Compared with the prior art, the device is optimized in size, making it lighter, easier to carry and install, which reduces the construction difficulty and improves work efficiency. During the whole process, the adjustment and pressing action of the limiting component ensures the close adhesion between the carbon fiber cloth 10 and the building structure, improves the reinforcement effect, and avoids poor reinforcement effect caused by looseness or dislocation. At the same time, the setting of the protective shell (the tensioning end protective shell 32 and the fixed end protective shell 22) also provides additional protection and support, ensuring the stability and safety of the reinforcement device, and avoiding the failure of the prestressed reinforcement of the carbon fiber cloth 10 due to external force collision.

[0035] Example 2, refer to Figure 9-14 The sensing component includes an installation cavity 62, an active cavity 63 and a movable column 7. The installation cavity 62 is arranged inside the tensioning end clamp 6. One end of the active cavity 63 passes through the side wall of the tensioning end clamp 6, and the other end is connected to the installation cavity 62. A mounting plate 9 and a sensor 93 are fixedly installed at the bottom of the installation cavity 62. A plurality of trigger sheets 92 are fixedly connected to the top of the sensor 93. A plurality of spring sheets 91 are fixedly connected to the side of the installation plate 9 facing the sensor 93. The movable column 7 is slidably arranged in the movable cavity 63. A ball 71 is rotatably connected to the top of the movable column 7. The movable column 7 is elastically connected to the top of the inner wall of the movable cavity 63 through a spring 72. The spring 72 provides elastic restoring force for the movable column 7.

[0036] It should be noted that the spring piece 91 is located directly below the movable column 7, ensuring that the movable column 7 can move to the spring piece 91. The spring piece 91 and the trigger piece 92 in the same tension end clamp 6 are arranged correspondingly to ensure that the spring piece 91 can act on the trigger piece 92. The movable columns 7 in different tension end clamps 6 are arranged in an alternating manner, which expands the distribution of the movable columns 7 (refer to Fig.12 ), the detection range is increased, and the spring piece 91 and the trigger piece 92 are in conflict when the upper end surface of the ball 71 is flush with the surface of the tension end clamp 6 (refer to Fig.14 ), this situation will occur during tensioning. At this time, under the action of the carbon fiber cloth 10, the ball 71 will drive the movable column 7 to shrink inward, and there is a gap between the spring piece 91 and the trigger piece 92 in the initial state (refer to Fig.11), the trigger sheet 92 is electrically connected to the sensor 93. After being squeezed by the spring sheet 91, the trigger sheet 92 will transmit data to the sensor 93. The sensor 93 is connected to the external device through wireless communication. After receiving the sensing signal, the external device (such as a monitoring center, a data recorder, etc.) can perform corresponding processing or recording. For example, the tensioning state, time and other information of the carbon fiber cloth 10 can be recorded for subsequent analysis and evaluation.

[0037] In this embodiment, in the initial state, before the carbon fiber cloth 10 is tensioned, the movable column 7 is kept in place by the spring 72 . At this time, there is a gap between the spring piece 91 and the trigger piece 92 , and the sensor 93 does not receive a trigger signal.

[0038] Tensioning process: When the carbon fiber cloth 10 is tensioned, its tension is transmitted to the movable column 7 through the ball 71, so that the movable column 7 contracts toward the inside of the movable cavity 63. As the movable column 7 moves, the spring piece 91 is compressed and gradually contacts the trigger piece 92. When the spring piece 91 contacts the trigger piece 92, the trigger piece 92 transmits an electrical signal to the sensor 93. After receiving the signal, the sensor 93 transmits the signal to the external device through wireless communication. After receiving the sensing signal, the external device (such as a monitoring center, a data recorder, etc.) performs corresponding processing or recording, for example, recording the tensioning state, time and other information of the carbon fiber cloth 10.

[0039] When the jack 4 is tensioning, the data transmitted by the sensing component can be used to analyze whether the carbon fiber cloth 10 at the clamping end has wrinkles, which is of great significance for timely discovering and dealing with potential reinforcement problems. In the construction process of reinforcing the carbon fiber cloth 10, the clamping part of the tensioning end is the key position where the carbon fiber cloth 10 is stressed. When the movement speed of the jack 4 is uneven, the clamping part will first feel this uneven stretching. If the carbon fiber cloth 10 at the clamping part is subjected to excessive tension, it may cause fiber breakage or over-stretching, which is usually manifested as obvious deformation or damage of the carbon fiber cloth 10 at the clamping part. On the contrary, if the tension of the carbon fiber cloth 10 at the clamping part is insufficient, it may be loose or wrinkled, which will further affect the reinforcement effect of the carbon fiber cloth 10.

[0040] Specifically, when the carbon fiber cloth 10 at the clamping end has no wrinkles, its tension is evenly distributed and the stress conditions at various locations are consistent. In this case, the data transmitted by the multiple trigger sheets 92 will be relatively consistent, reflecting that the carbon fiber cloth 10 is evenly stressed as a whole, and the ball 71 at the top of the active column 7 is in close contact with the carbon fiber cloth 10 and is evenly stressed. Therefore, the pressure applied by the active column 7 to the spring sheet 91 also remains stable, and the trigger sheet 92 transmits a stable pressure signal to the sensor 93, which then transmits the data to an external device via wireless communication. When wrinkles appear on the carbon fiber cloth 10 at the clamping end, the tension at the wrinkled location will decrease, resulting in a corresponding decrease in the stress on the ball 71 at that location. Under the elastic restoring force of the spring 72, the active column 7 will partially or completely return to its original position, resulting in a change in the pressure applied to the spring sheet 91. This pressure change will be captured by the trigger sheet 92 and converted into an electrical signal and transmitted to the sensor 93. The data received by the sensor 93 will reflect the abnormal pressure at the wrinkled location, thereby determining that the carbon fiber cloth 10 has wrinkles at that location.

[0041] Since there are multiple spring pieces 91 and trigger pieces 92, and the active columns 7 in the clamping blocks 6 at different tensioning ends are arranged in an alternating manner, the detection range is expanded and the accuracy and reliability of monitoring are improved. The setting of multiple detection points can provide more data points, so as to more accurately judge the stress state of the carbon fiber cloth 10 and whether there are wrinkles. By comparing the data at different positions, it is easier to identify abnormal areas. Even if a certain detection point fails or has an error, other detection points can still provide valid data, thereby ensuring the reliability of the entire monitoring system. The rotational connection of the ball 71 reduces the friction resistance between the carbon fiber cloth 10 and the tensioning process, which means that the active column 7 responds more quickly and sensitively to the slight deformation of the carbon fiber cloth 10, so that it can detect the occurrence of wrinkles earlier, thereby improving the sensitivity and response speed of the sensing component.

[0042] After receiving the data transmitted by the sensor 93, external equipment (such as a monitoring center, a data recorder, etc.) will perform real-time processing and analysis. By comparing the data transmitted by different trigger sheets 92, it is possible to identify which parts of the carbon fiber cloth 10 are abnormally stressed, and then determine the location and degree of the wrinkles. By monitoring the stress of the carbon fiber cloth 10 in real time and promptly discovering and dealing with the problem of uneven stretching, it is possible to avoid potential safety hazards in the reinforcement project and improve the quality and reliability of the project. By real-time monitoring and analyzing data, the tensioning process and reinforcement plan can be optimized, and the reinforcement efficiency and economy can be improved. The data processing system can also predict and evaluate the tensioning state of the carbon fiber cloth 10 based on historical data and empirical models, providing a scientific basis for the reinforcement project.

[0043] Embodiment 3. In this embodiment, the carbon fiber cloth 10 is a high-strength, high-modulus composite material widely used in the field of structural reinforcement and repair. However, during long-term use, the carbon fiber cloth 10 may age or be damaged due to environmental factors (such as ultraviolet radiation, humidity changes, etc.) or mechanical stress. When a certain section of the carbon fiber cloth 10 is aged or damaged, its mechanical properties will change, causing the stress state of the part to change. In order to monitor this change, the sensing component in Embodiment 3 senses the state of the carbon fiber cloth 10 through the stress change of the ball 71. The ball 71, as a part of the movable column 7, is in direct contact with the carbon fiber cloth 10. When the carbon fiber cloth 10 is aged or damaged, the physical properties of its surface, such as the friction coefficient and hardness, will change, thereby affecting the stress state of the ball 71.

[0044] After the tensioning is completed, the carbon fiber cloth 10 is in a stable state, and the ball 71 is also in a relatively stable stress state. When a certain section of the carbon fiber cloth 10 is aged or damaged, the mechanical properties of the part change, resulting in a change in the stress state. This change will directly affect the stress state of the ball 71 in contact with the carbon fiber cloth 10. The stress change of the ball 71 will be transmitted to the spring piece 91 and the trigger piece 92 through the movable column 7. When the stress change reaches a certain level, the sensor 93 will be triggered and an alarm will be issued, indicating that the carbon fiber cloth 10 has aged or been damaged.

[0045] This function is of great significance in practical applications. The sensing component in the third embodiment senses the aging or damage state of the carbon fiber cloth 10 through the stress change of the ball 71. By real-time monitoring the stress state change of the carbon fiber cloth 10, the aging or damage problem of the carbon fiber cloth 10 can be discovered and handled in time, thereby avoiding the occurrence of structural safety hazards. At the same time, this monitoring method can also provide data support for the maintenance and management of the carbon fiber cloth 10, extend its service life and improve the reinforcement effect.

[0046] It should be noted that the specific model specifications of the jack 4 and the sensor 93 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A carbon fiber cloth reinforced prestressed construction device, comprising a building base plate (11) and a carbon fiber cloth (10), wherein a tensioning end drilling hole and a fixing end drilling hole are provided at a predetermined position at the bottom of the building base plate (11), characterized in that: Also includes: Tensioning component (1): the tensioning component (1) is fixedly mounted on one end of the bottom of the building base plate (11), and the tensioning component (1) is used to apply tensioning force to one end of the carbon fiber cloth (10); Fixing component (2): the fixing component (2) is fixedly mounted on the other end of the bottom of the building base plate (11) and is aligned with the center line of the tensioning component (1), and the fixing component (2) is used to fix the other end of the carbon fiber cloth (10); Sensing component: the sensing component is arranged inside the tensioning component (1).

2. A carbon fiber cloth reinforced prestressed construction device according to claim 1, characterized in that: The tensioning assembly (1) comprises a tensioning end anchor plate (3), an anchor bolt (31), a tensioning end protective shell (32), a jack (4), a tensioning bracket (5), an adjustment block (52) and two tensioning end clamping blocks (6); the tensioning bracket (5) is slidably plugged into the tensioning end anchor plate (3); the upper side wall of the tensioning bracket (5) is fixedly connected to the limit block (51); the tensioning bracket (5) is provided with a tensioning port (55), an adjustment cavity (53) and a limit cavity (54) in sequence; the adjustment block (52) is located in the adjustment cavity (5 The tensioning end anchor plate (3) is provided on both sides of the tensioning end anchor plate (3) and is fixedly connected to the tensioning bracket (5); a slide groove matching the front end of the tensioning bracket (5) is provided inside the tensioning end anchor plate (3); after the tensioning bracket (5) and the tensioning end anchor plate (3) are plugged in, the tensioning end protective shell (32) is slidably installed between the tensioning end anchor plate (3) and the limit block (51); waist holes are correspondingly provided on the tensioning end anchor plate (3) and the tensioning end protective shell (32); the anchor bolt (31) is inserted through the waist hole and then implanted into the tensioning end drill hole to achieve the fixation of the tensioning component (1).

3. A carbon fiber cloth reinforced prestressed construction device according to claim 2, characterized in that: A fixing screw (8) is fixedly connected to one side of the tensioning bracket (5) away from the fixing assembly (2); a positioning piece matching the fixing screw (8) is fixedly arranged on the tensioning end anchor plate (3); a jack (4) is installed on the side wall of the tensioning end anchor plate (3) close to the fixing assembly (2); a through hole is arranged inside the limit block (51); and an output end of the jack (4) passes through the through hole and is fixed to the limit block (51) via a nut.

4. A carbon fiber cloth reinforced prestressed construction device according to claim 3, characterized in that: A supporting ring for supporting the side wall of the limit block (51) is fixedly arranged on the output end of the jack (4); after the tensioning bracket (5) is tensioned by the jack (4), the end of the fixing screw (8) passes through the positioning piece and cooperates with the fixing nut (81) to achieve the position fixation of the limit block (51) and the tensioning end anchor plate (3); the jack (4) is detachably arranged.

5. A carbon fiber cloth reinforced prestressed construction device according to claim 2, characterized in that: A limit assembly is arranged in the adjustment cavity (53), the limit assembly comprising a limit cylinder (23) arranged in the adjustment cavity (53), the interior of the limit cylinder (23) being rotatably engaged with a limit shaft (231), the adjustment block (52) being provided with a limit groove for limiting the end of the limit shaft (231), the adjustment block (52) being threadedly connected with an adjustment screw (24), the end of the adjustment screw (24) being fixedly connected with a limit ring (241), the end of the adjustment screw (24) passing through the limit groove and then being rotatably engaged with the limit shaft (231) through the limit ring (241), and the tensioning end protective shell (32) being provided with a notch matching the adjustment screw (24) and the tensioning bracket (5), one end of the notch being through-set.

6. A carbon fiber cloth reinforced prestressed construction device according to claim 2, characterized in that: Both ends of the tensioning end clamping block (6) are provided with mounting portions (61); one end of the carbon fiber cloth (10) passes through the gap between the two tensioning end clamping blocks (6), is then wrapped around the two tensioning end clamping blocks (6) for several turns, and then passes out from the tensioning port (55); the two tensioning end clamping blocks (6) are fixed into a whole by bolts, and then the whole is clamped inside the limiting cavity (54).

7. A carbon fiber cloth reinforced prestressed construction device according to claim 2, characterized in that: The fixing assembly (2) comprises a fixing end anchor plate (21), a fixing end protective shell (22) and two fixing end clamping blocks (25); the upper side wall of the fixing end anchor plate (21) is fixedly connected to a mounting beam (211); a clamping slot is provided at the bottom of the fixing end anchor plate (21); the other end of the carbon fiber cloth (10) passes through a gap between the two fixing end clamping blocks (25), is wound around the two fixing end clamping blocks (25) for several turns, and then passes out of the fixing end anchor plate (21); the two fixing end clamping blocks (25) are fixed into a whole by bolts, and then the whole is clamped in the clamping slot.

8. A carbon fiber cloth reinforced prestressed construction device according to claim 7, characterized in that: A limit position component is also provided between the two mounting beams (211); a notch matching the adjusting screw (24) is provided on the fixed end protective shell (22); one end of the notch is through-set; waist holes are correspondingly provided on the fixed end anchor plate (21) and the fixed end protective shell (22); the anchor bolt (31) passes through the waist hole and is implanted into the fixed end drill hole to achieve fixation of the fixed component (2).

9. A carbon fiber cloth reinforced prestressed construction device according to claim 2, characterized in that: The sensing component comprises a mounting cavity (62), a movable cavity (63) and a movable column (7); the mounting cavity (62) is arranged inside the tensioning end clamp (6); one end of the movable cavity (63) penetrates the side wall of the tensioning end clamp (6) and the other end is connected to the mounting cavity (62); a mounting plate (9) and a sensor (93) are fixedly mounted at the bottom of the mounting cavity (62); a plurality of trigger plates (92) are fixedly connected to the top of the sensor (93); a plurality of spring plates (91) are fixedly connected to the side of the mounting plate (9) facing the sensor (93); the movable column (7) is slidably arranged in the movable cavity (63); a ball bearing (71) is rotatably connected to the top of the movable column (7); and the movable column (7) is elastically connected to the top of the inner wall of the movable cavity (63) via a spring (72).

10. A carbon fiber cloth reinforced prestressed construction device according to claim 9, characterized in that: The spring piece (91) is located directly below the movable column (7); the spring piece (91) and the trigger piece (92) in the same tensioning end clamp (6) are arranged correspondingly; the movable columns (7) in different tensioning end clamps (6) are arranged alternately; when the upper end surface of the ball (71) is flush with the surface of the tensioning end clamp (6), the spring piece (91) and the trigger piece (92) are in contact with each other; in an initial state, there is a gap between the spring piece (91) and the trigger piece (92); the trigger piece (92) and the sensor (93) are electrically connected; and the sensor (93) and the external device are connected via wireless communication.

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