Intelligent tensioning method for reinforcing bridge pier surface cracks through annular prestressed steel wire ropes

Abstract

The invention discloses an intelligent tensioning method and system for surface cracks of an annular prestressed steel wire rope reinforced bridge pier, and the method comprises the steps: carrying out the image recognition based on a collected image, and obtaining the stress data of all marking points of a steel wire rope and bridge pier concrete; acquiring actual tension end control stress of each stage of the steel wire rope; obtaining a formula between the control stress of the tensioning end of the steel wire rope and the stress of each mark point, wherein the formula contains parameters to be solved; fitting an actual value of a to-be-solved parameter in the formula; and on the basis of a known formula of the parameters to be solved, the final tension end control stress is calculated according to the reinforcement requirement of the concrete at the mark point. The intelligent tensioning method is provided by combining field strain monitoring, a dynamic reinforcing stress calculation method and an automatic tensioning control device, the actual reinforcing stress is determined, the tensioning force is controlled based on the reinforcing effect, and the actual reinforcing effect is effectively evaluated.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and in particular to an intelligent tensioning method and system for reinforcing surface cracks of a bridge pier with an annular prestressed steel wire rope. Background Art

[0002] Annular prestressed steel wire ropes can be used to reinforce concrete bridge piers by applying annular precompressive stress on the surface of the piers to prevent cracks that have been repaired and sealed from reopening under tensile stress. However, the reinforcement stress cannot be accurately calculated and predicted due to uneven friction between the pier column and the steel wire rope, irregular damage on the pier column surface, and deformation that does not conform to the flat section assumption, resulting in a difference between the reinforcement effect and actual needs.

[0003] Patent CN115852858A discloses a steel wire rope circumferential reinforcement structure and construction method, and proposes a processing method and basic construction process. CN219175048U discloses a steel wire rope interlocking structure for reinforcing bridge piers, which improves the fit and anchoring effect of prestressed steel wire ropes and the surface of concrete piers.

[0004] The above patents propose the basic structure and method of reinforcing bridge piers with annular prestressed steel wire ropes, but none of them involve the control of reinforcement stress and the evaluation of the actual reinforcement effect. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides a method and system for intelligently tensioning cracks on the surface of bridge piers reinforced with annular prestressed steel wire ropes. The technical solution is as follows: In a first aspect, a method for intelligently tensioning a bridge pier surface crack reinforced with an annular prestressed steel wire rope is provided, comprising the following steps: Step 1: Based on the collected image, image recognition is performed to obtain the actual stress data of each marked point of the steel wire rope and the bridge pier concrete; Step 2, obtaining the actual tensioning end control stress of each stage of the wire rope; Step 3, obtaining a formula between the control stress at the tensioning end of the wire rope and the stress at each marking point, wherein the formula contains parameters to be solved, and the parameters to be solved include the friction coefficient of the marking point and the concrete stress parameter; Step 4, using the data from step 1 and step 2 to substitute into the formula in step 3, fitting the actual values ​​of the parameters to be solved in the formula; Step 5: Based on the formula with known parameters to be solved and according to the reinforcement requirements of the concrete at the marked points, calculate the final tensioning end control stress.

[0006] In some embodiments, the step 1 comprises: Based on the collected image, image recognition is performed to obtain the strain of each marked point of the wire rope, and the stress of each marked point of the wire rope is determined based on the strain of each marked point of the wire rope; Based on the collected images, image recognition is performed to obtain the strain of each marked point of the pier concrete, and the stress of each marked point of the pier concrete is determined based on the strain of each marked point of the pier concrete.

[0007] In some embodiments, the formula in step 3 includes a first formula between the controlled stress at the tensioning end of the steel wire rope and the stress at each marked point of the annular prestressed steel wire rope, and a second formula between the controlled stress at the tensioning end of the steel wire rope and the stress at each marked point of the bridge pier concrete; The first formula is: ,in, represents the i-th level control stress, Represents the theoretical stress matrix of the wire rope at the marked point, Represents the actual stress matrix of each marked point of the wire rope, It represents the stress of the wire rope at the kth mark point after the i-th level tensioning, k=1,2,...,n, and is used when fitting the parameters to be solved. = Fitting; It represents the controlled stress at the tensioning end of the wire rope after the i-th level tensioning; represents the friction coefficient between the steel wire rope and the concrete at the kth marking point; Indicates the angle between the kth mark point and the tensioning end of the wire rope; The second formula is: ,in, represents the i-th level control stress, represents the theoretical annular stress matrix of concrete at the marked point after the i-th level of tensioning; ,in represents the hoop stress matrix of concrete at the marked point after the i-th level of tensioning, It represents the hoop stress of concrete at the kth mark point after the i-th level tensioning, and is used when fitting the parameters to be solved. = Fitting; Indicates the cross-sectional area of ​​the wire rope; Indicates the radius of the concrete pier; Indicates the contact area between the wire rope and the concrete pier; , Represents concrete stress parameters.

[0008] In some embodiments, the reinforcement requirement of the concrete at the marked point is determined based on the following formula: ,in, It indicates the minimum value of the concrete hoop compressive stress at all marked points after tensioning is completed; Indicates the standard value of the concrete axial tensile strength corresponding to the reinforced pier column object.

[0009] In some embodiments, after fitting the parameters to be solved, i.e., the friction coefficient and concrete stress parameters at the marked point, the theoretical stress of the wire rope at the marked point after the i-th level tensioning and the theoretical annular stress of the concrete at the marked point after the i-th level tensioning are calculated based on the first formula and the second formula. If the error between the actual stress and the theoretical stress of the marked point is greater than a first preset threshold, the friction coefficient and concrete stress parameters of the marked point are recalculated, and the tensioning control stress is updated.

[0010] In some embodiments, the first preset threshold is 5%.

[0011] In some embodiments, the method for intelligent tensioning of surface cracks in bridge piers with annular prestressed steel wire ropes further includes: judging the reinforcement requirement for the actual stress of the concrete after each level of tensioning; if the reinforcement requirement is met before the final tensioning force is completed, sending a stop tensioning signal to the automatic tensioning device; if the reinforcement requirement is not met after the final tensioning force is completed, continuing to tension at 5% of the final tensioning force until 0.7 times the maximum breaking force of the steel wire rope is reached or the reinforcement requirement is met.

[0012] In the second aspect, a ring-shaped prestressed steel wire rope is provided to reinforce the intelligent tensioning system of bridge pier surface cracks, comprising: The annular prestressed steel wire rope is used to generate radial pressure on the concrete pier wall under tension, which in turn generates annular compressive stress on the pier surface, thus playing a role in crack reinforcement; Tensioning module, including tensioning mechanical equipment and automatic tensioning unit; Anchoring module, including anchoring mechanical device and anchoring automatic control system; The strain monitoring system is used to collect strain images of each marked point based on multi-angle and multi-position high-definition cameras, obtain strain images, and transmit them to edge computing devices; An edge computing device, used to execute the method for intelligent tensioning of cracks on the surface of a bridge pier reinforced with an annular prestressed steel wire rope as described in the first aspect above; The cloud server is used to receive and store the real strain, stress, and tensioning control stress data of the wire rope and concrete after each level of tensioning uploaded by the edge computing device, monitor and regulate the edge device calculation, and perform visual control of the entire tensioning process.

[0013] In some embodiments, the cloud server stores the data of each tensioning process. When a new tensioning process is carried out, the previous data is used for comparison with the new tensioning process. If a significant difference is found in the data of the new tensioning process, a stop tensioning instruction is issued. When tensioning is completed, the reinforcement effect is evaluated based on the final stress-strain data of the wire rope and concrete. After verification, an anchoring instruction is issued to the edge device, and a relevant report is generated on the reinforcement process and results.

[0014] In some embodiments, when the tensioning stops, the anchoring module receives an anchoring instruction from the edge device and performs automatic anchoring.

[0015] The present invention provides an intelligent tensioning method and system for reinforcing cracks on the surface of a bridge pier with an annular prestressed steel wire rope, which has the following beneficial effects: 1. The present invention adjusts the tensioning control stress according to the parameters to be solved in the strain-stress fitting formula of the steel wire rope and concrete after actual tensioning, ensuring that all reinforcement positions meet the reinforcement requirements, avoiding the reduction of the reinforcement effect due to uneven friction between the pier and the steel wire rope, irregular damage on the pier surface, deformation that does not meet the flat section assumption, etc.

[0016] 2. The present invention adopts an adaptive dynamic control strategy to avoid the influence of various operational errors in tensioning on the reinforcement effect. It ensures the safety and stability of tensioning on the basis of ensuring that the tensioning effect meets the requirements, and performs a visual evaluation of the final reinforcement effect, solving the problem of unclear reinforcement effect in the past.

[0017] 3. The present invention performs intelligent control of the tensioning process based on cloud servers, edge computing equipment, and automated tensioning and anchoring devices, so that the tensioning process is carried out automatically, saving labor costs and improving work efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the on-site equipment layout diagram; Figure 2 It is the overall structure diagram of the system; Figure 3 It is a schematic diagram of the process of the intelligent tensioning method for reinforcing the surface cracks of the bridge pier by annular prestressed steel wire rope in the embodiment of the present application; Figure 4 This is a schematic diagram of an implementation process of the entire tensioning and anchoring process in the embodiment of the present application; In the figure: 1. Anchored annular prestressed steel wire rope; 2. Tensioned annular prestressed steel wire rope; 3. Automated anchoring device; 4. Automated tensioning device; 5. Strain monitoring high-definition camera; 6. Edge computing equipment; 7. Cloud server; 8. Concrete pier to be reinforced. DETAILED DESCRIPTION

[0019] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0020] In the embodiment of the present application, a ring-shaped prestressed steel wire rope intelligent tensioning system for reinforcing cracks on the surface of a bridge pier is provided, comprising: The annular prestressed steel wire rope is used to generate radial pressure on the concrete pier wall under tension, which in turn generates annular compressive stress on the pier surface, thus playing a role in crack reinforcement; The tensioning module includes tensioning mechanical equipment and automatic tensioning units. It can automatically control the tensioning of the wire rope by presetting the graded tensioning scheme, and can also receive data through the data interface, modify the tensioning scheme according to the input data and automatically execute it; Anchoring module, including anchoring mechanical device and anchoring automatic control system, receives anchoring instruction from edge device and performs automatic anchoring after tensioning stops; The strain monitoring system is used to collect strain images of each marked point based on a multi-angle and multi-position high-definition camera, obtain strain images, and transmit them to the edge computing device. A point is calibrated every 10 cm on the wire rope. After each level of tensioning, high-definition photos of the wire rope and concrete at the marked point on the wire rope are collected, and the image data is transmitted to the edge device for strain recognition, so as to realize real-time monitoring of the strain of the wire rope and the concrete surface; The edge computing device is used to execute the intelligent tensioning method for the surface cracks of the bridge pier reinforced with annular prestressed steel wire rope provided by the present invention, and is composed of an edge computing device and a computing program. The edge computing device receives the image data transmitted by the strain monitoring module, and obtains the actual strain of the steel wire rope and the concrete at each marked position after each tensioning stage is completed by identification; the actual stress value of the steel wire rope and the concrete is calculated by the strain, and the final tensioning end control stress is calculated by fitting the parameters to be solved; The cloud server is used to receive and store the real strain, stress, and tension control stress data of the steel wire rope and concrete after each tensioning stage uploaded by the edge computing device, monitor and regulate the edge device calculation, and visually control the entire tensioning process. The cloud server stores the data of each tensioning process. When a new tensioning process is carried out, the previous data is used to compare with the new tensioning process. If a significant difference is found in the data of the new tensioning process, a stop tensioning instruction is issued to ensure the safety of the tensioning process. When the tensioning is completed, the reinforcement effect is evaluated based on the final stress-strain data of the steel wire rope and concrete, and a reinforcement effect cloud map is drawn. After checking that it is correct, an anchoring instruction is issued to the edge device, and a relevant report on the reinforcement process and results is generated.

[0021] Specifically, the intelligent tensioning method for strengthening the surface cracks of bridge piers with annular prestressed steel wire ropes executed by the edge computing device includes the following steps: Step 1: Perform image recognition based on the collected image to obtain the actual stress data of each marked point of the steel wire rope and the bridge pier concrete; Step 2, obtaining the actual tensioning end control stress of each stage of the wire rope; Step 3, obtaining a formula between the control stress at the tensioning end of the wire rope and the stress at each marking point, wherein the formula contains parameters to be solved, and the parameters to be solved include the friction coefficient of the marking point and the concrete stress parameter; Step 4, using the data from step 1 and step 2 to substitute into the formula in step 3, fitting the actual values ​​of the parameters to be solved in the formula; Step 5: Based on the formula with known parameters to be solved and according to the reinforcement requirements of the concrete at the marked points, calculate the final tensioning end control stress.

[0022] Before the tensioning begins, the annular prestressed steel wire rope 2 is fixed on the concrete pier 8; the automated tensioning device 4 is installed; strain monitoring high-definition cameras 5 are arranged around, and the strain monitoring cameras and edge computing devices 6 transmit data via wireless signals, and the image information is transmitted to the edge computing device 6, and the stress of the steel wire rope and concrete is obtained through identification and calculation; the edge computing device 6 is connected to the automated tensioning device 4 to control it; the cloud server 7 is connected to the edge computing device 6 to monitor and control the edge computing device.

[0023] Before the tensioning begins, the tensioning control stress is calculated and graded based on past experience and estimated parameters, with each grade being 10% of the maximum control stress. Marks are made every 10 cm on the annular prestressed steel wire rope, and the actual strain of the steel wire rope and concrete at the marked locations is monitored by the strain monitoring module after each level of tensioning, and the actual stress of the steel wire rope and concrete at the marked locations is calculated in the edge computing device.

[0024] Carry out stage-by-stage tensioning, complete the first three levels of tensioning first, and obtain the actual strains of the wire rope and concrete at the marked locations after the first three levels of tensioning respectively, calculate the actual stresses of the wire rope and concrete at the marked locations in the edge computing device, and transmit the tensioning control stress and the actual stresses of the wire rope and concrete to the cloud server for storage.

[0025] In one embodiment, the above step 1 includes: Step 11, based on the collected image, image recognition is performed to obtain the strain of each marked point of the steel wire rope, and the stress of each marked point of the steel wire rope is determined based on the strain of each marked point of the steel wire rope; Step 12, based on the collected image, image recognition is performed to obtain the strain of each marked point of the pier concrete, and the stress of each marked point of the pier concrete is determined based on the strain of each marked point of the pier concrete.

[0026] Specifically: Step 11 above, The strain matrix of the wire rope at the marked point is: ,in, represents the wire rope strain matrix at the marked point after the i-th level tensioning, It represents the strain of the wire rope at the kth mark point after the i-th level tensioning; The actual stress matrix of the wire rope at the marked point is: ;in, represents the stress matrix of the wire rope at the marked point after the i-th level tensioning, represents the elastic modulus of the wire rope, It represents the stress of the wire rope at the kth mark point after the i-th level tensioning, k=1,2,...,n; Step 12 above, The concrete strain matrix at the marked point is as follows: ,in, represents the hoop strain matrix of concrete at the marked point after the i-th level of tensioning, It represents the hoop strain of concrete at the kth mark point after the i-th level of tensioning; The actual stress matrix of concrete at the marked point is: ;in, represents the hoop stress matrix of concrete at the marked point after the i-th level of tensioning, represents the elastic modulus of the concrete pier column, It represents the hoop stress of concrete at the kth marked point after the i-th level of tensioning.

[0027] In one embodiment, the formula in step 3 above includes a first formula between the controlled stress at the tensioning end of the steel wire rope and the stress at each marked point of the annular prestressed steel wire rope, and a second formula between the controlled stress at the tensioning end of the steel wire rope and the stress at each marked point of the bridge pier concrete; (A) Among them, for the wire rope, the first formula between the control stress at the tensioning end and the stress at each marked point of the wire rope is: ,in, Represents the theoretical stress matrix of the wire rope at the marked point, which is used when fitting the parameters to be solved. = Fitting; represents the i-th level control stress; It represents the controlled stress at the tensioning end of the wire rope after the i-th level tensioning; represents the friction coefficient between the steel wire rope and the concrete at the kth marking point; Indicates the angle between the kth mark point and the tensioning end of the wire rope; (B) For bridge pier concrete, the second formula between the control stress at the tensioning end of the wire rope and the stress at each marked point of the bridge pier concrete is: ,in, Represents the theoretical annular stress matrix of concrete at the marked point after the i-th level of tensioning; when fitting the parameters to be solved, use = Fitting; Indicates the cross-sectional area of ​​the wire rope, in mm 2 ; represents the i-th level control stress; It indicates the radius of the concrete pier column; Indicates the contact area between the wire rope and the concrete pier; , Represents concrete stress parameters.

[0028] In one embodiment, the above step 5, based on the formula with known parameters to be solved and according to the reinforcement requirements of the concrete at the marked point, calculates the final tension end control stress, including: Determine the final tension end control stress, where: It indicates the minimum value of the concrete hoop compressive stress at all marked points after tensioning is completed; It represents the standard value of the concrete axial tensile strength corresponding to the reinforced pier object, which can be selected according to the "Design Code for Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts" (JTG3362-2018).

[0029] In one embodiment, after the above step 5, the method further includes: Step 6, after fitting the parameters to be solved, i.e., the friction coefficient and concrete stress parameters at the marked point, based on the first formula and the second formula, calculate the theoretical stress of the wire rope at the marked point after the i-th level tensioning and the theoretical annular stress of the concrete at the marked point after the i-th level tensioning under the fitting parameters of the parameters to be solved. If the error between the actual stress and the theoretical stress of the marked point is greater than a first preset threshold (for example, the first preset threshold can be 5%), recalculate the friction coefficient and concrete stress parameters of the marked point; and update the tensioning control stress.

[0030] It can be understood that in the above first and second formulas, the friction coefficient at each marked point is , concrete stress parameters , When there is a value, the theoretical stress of each marked point of the wire rope and the theoretical stress of each marked point of the bridge pier concrete can be solved by using the first and second formulas based on the actual stress of the tensioning end of the wire rope. At the same time, the actual stress of each marked point of the wire rope and the actual stress of each marked point of the bridge pier concrete can be obtained based on image analysis. Therefore, the parameters to be solved in the formula (friction coefficient of each marked point) can be updated according to the error between the actual stress of each marked point and the theoretical stress , concrete stress parameters , ).

[0031] The reinforcement requirement is judged based on the actual stress of the concrete after each level of tensioning. If the reinforcement requirement is met before the final tensioning force is completed, a stop tensioning signal is sent to the automatic tensioning device. If the reinforcement requirement is not met after the final tensioning force is completed, tensioning will continue at 5% of the final tensioning force until it reaches 0.7 times the maximum breaking force of the wire rope or the reinforcement requirement is met.

[0032] After each tensioning stage, the actual strain stress and control stress data of the steel wire rope and concrete are transmitted from the edge computing device to the cloud server for storage, and the tensioning process is visually monitored in the cloud server. The cloud server stores a large amount of monitoring data of the reinforcement process, and compares the previous data with the new tensioning process. If the new tensioning process data is found to be significantly different, a stop tensioning command is issued to ensure the safety of the tensioning process. When the tensioning is completed, the reinforcement effect is evaluated based on the final stress-strain data of the steel wire rope and concrete, and a reinforcement effect cloud map is drawn. After checking that it is correct, an anchoring command is issued to the edge device, and a relevant report on the reinforcement process and results is generated.

[0033] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work are all within the protection scope of the present invention.

Claims

1. An intelligent tensioning method for reinforcing cracks on the surface of a bridge pier with an annular prestressed steel wire rope, characterized in that: The steps include: Step 1: Based on the collected image, image recognition is performed to obtain the actual stress data of each marked point of the steel wire rope and the bridge pier concrete; Step 2, obtaining the actual tensioning end control stress of each stage of the wire rope; Step 3, obtaining a formula between the control stress at the tensioning end of the wire rope and the stress at each marking point, wherein the formula contains parameters to be solved, and the parameters to be solved include the friction coefficient of the marking point and the concrete stress parameter; Step 4, using the data from step 1 and step 2 to substitute into the formula in step 3, fitting the actual values ​​of the parameters to be solved in the formula; Step 5: Based on the formula with known parameters to be solved and according to the reinforcement requirements of the concrete at the marked points, calculate the final tensioning end control stress.

2. The intelligent tensioning method for reinforcing the surface cracks of bridge piers according to claim 1 is characterized in that: The step 1 comprises: Based on the collected image, image recognition is performed to obtain the strain of each marked point of the wire rope, and the stress of each marked point of the wire rope is determined based on the strain of each marked point of the wire rope; Based on the collected images, image recognition is performed to obtain the strain of each marked point of the pier concrete, and the stress of each marked point of the pier concrete is determined based on the strain of each marked point of the pier concrete.

3. The intelligent tensioning method for reinforcing cracks on the surface of bridge piers according to claim 1 is characterized in that: The formulas in step 3 include a first formula between the controlled stress at the tensioning end of the steel wire rope and the stress at each marked point of the annular prestressed steel wire rope, and a second formula between the controlled stress at the tensioning end of the steel wire rope and the stress at each marked point of the bridge pier concrete; The first formula is: ,in, represents the i-th level control stress, Represents the theoretical stress matrix of the wire rope at the marked point, Represents the actual stress matrix of each marked point of the wire rope, It represents the stress of the wire rope at the kth mark point after the i-th level tensioning, k=1,2,...,n, and is used when fitting the parameters to be solved. = Fitting; It represents the controlled stress at the tensioning end of the wire rope after the i-th level tensioning; represents the friction coefficient between the steel wire rope and the concrete at the kth marking point; Indicates the angle between the kth mark point and the tensioning end of the wire rope; The second formula is: ,in, represents the i-th level control stress, represents the theoretical annular stress matrix of concrete at the marked point after the i-th level of tensioning; ,in represents the hoop stress matrix of concrete at the marked point after the i-th level of tensioning, It represents the hoop stress of concrete at the kth mark point after the i-th level tensioning, and is used when fitting the parameters to be solved. = Fitting; Indicates the cross-sectional area of ​​the wire rope; Indicates the radius of the concrete pier; Indicates the contact area between the wire rope and the concrete pier; , Represents concrete stress parameters.

4. The intelligent tensioning method for reinforcing the surface cracks of bridge piers according to claim 1 is characterized in that: The reinforcement requirement of the concrete at the marked point is determined based on the following formula: ,in, It indicates the minimum value of the concrete hoop compressive stress at all marked points after tensioning is completed; Indicates the standard value of the concrete axial tensile strength corresponding to the reinforced pier column object.

5. The intelligent tensioning method for reinforcing the surface cracks of bridge piers according to claim 4 is characterized in that: After fitting the parameters to be solved, i.e., the friction coefficient and concrete stress parameters at the marked point, the theoretical stress of the steel wire rope at the marked point after the i-th tensioning and the theoretical annular stress of the concrete at the marked point after the i-th tensioning are calculated based on the first formula and the second formula. If the error between the actual stress and the theoretical stress of the marked point is greater than the first preset threshold, the friction coefficient and concrete stress parameters of the marked point are recalculated. And update the tension control stress.

6. The intelligent tensioning method for reinforcing the surface cracks of bridge piers according to claim 5 is characterized in that: The first preset threshold is 5%.

7. The intelligent tensioning method for reinforcing the surface cracks of bridge piers according to claim 1 is characterized in that: Also includes: The reinforcement requirement is judged based on the actual stress of the concrete after each level of tensioning. If the reinforcement requirement is met before the final tensioning force is completed, a stop tensioning signal is sent to the automatic tensioning device. If the reinforcement requirement is not met after the final tensioning force is completed, tensioning will continue at 5% of the final tensioning force until it reaches 0.7 times the maximum breaking force of the wire rope or the reinforcement requirement is met.

8. An intelligent tensioning system for strengthening cracks on the surface of bridge piers with annular prestressed steel wire ropes, characterized in that: include: The annular prestressed steel wire rope is used to generate radial pressure on the concrete pier wall under tension, which in turn generates annular compressive stress on the pier surface, thus playing a role in crack reinforcement; Tensioning module, including tensioning mechanical equipment and automatic tensioning unit; Anchoring module, including anchoring mechanical device and anchoring automatic control system; The strain monitoring system is used to collect strain images of each marked point based on multi-angle and multi-position high-definition cameras, obtain strain images, and transmit them to edge computing devices; Edge computing equipment, used to execute the method for intelligent tensioning of surface cracks of bridge piers reinforced with annular prestressed steel wire ropes as described in any one of claims 1 to 7; The cloud server is used to receive and store the real strain, stress, and tensioning control stress data of the wire rope and concrete after each level of tensioning uploaded by the edge computing device, monitor and regulate the edge device calculation, and perform visual control of the entire tensioning process.

9. The intelligent tensioning system for strengthening cracks on the surface of bridge piers according to claim 8 is characterized in that: The cloud server stores the data of each tensioning process. When a new tensioning process is carried out, the previous data is compared with the new tensioning process. If a significant difference is found in the data of the new tensioning process, a stop tensioning instruction is issued. When tensioning is completed, the reinforcement effect is evaluated based on the final stress-strain data of the wire rope and concrete. After verification, an anchoring instruction is issued to the edge device, and a relevant report is generated on the reinforcement process and results.

10. The intelligent tensioning system for strengthening cracks on the surface of bridge piers according to claim 8, characterized in that: When the tensioning stops, the anchoring module receives the anchoring instruction from the edge device and performs automatic anchoring.

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