Power transmission angle steel tower corrosion reinforcement method and system based on fiber composite material lamination

Abstract

The invention discloses a power transmission angle steel tower corrosion reinforcement method and system based on fiber composite material lamination. The method comprises the steps that corrosion state data and bearing requirements of a power transmission angle steel tower rod piece are obtained through evaluation and analysis, and a reinforcement design scheme is designed; carrying out stress analysis on the reinforcement design scheme by adopting finite element analysis software, analyzing a slip behavior to determine whether the current reinforcement design scheme is effective or not, and calculating an effective bonding length; if the reinforcement design scheme is effective and the reinforced transmission angle steel tower rod piece meets the stress requirement of the load-deformation performance test, the reinforcement design scheme serves as the finally obtained reinforcement design scheme, and otherwise, the reinforcement design scheme is adjusted to continue iteration. The problem that in the prior art, the reinforcing effect is not ideal is solved, the corrosion reinforcing effect of the fiber composite material on the power transmission angle steel tower is improved, the service life of the steel tower is prolonged, the safety of the steel tower is improved, and a scientific and systematic design scheme is provided for corrosion reinforcing of the power transmission angle steel tower.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power engineering and structural reinforcement, and particularly relates to a method and system for reinforcing a transmission angle steel tower corrosion based on fiber composite lamination. Background Art

[0002] With the increase of the operation time of the transmission line, the transmission angle steel tower has been corroded by environmental factors, climate change, acid rain, salt spray, etc. for a long time, resulting in different degrees of damage to the structure, causing the bearing capacity of the steel tower to decrease, and even causing structural instability, seriously affecting the safe operation of the transmission line. The traditional reinforcement method mainly adopts steel welding or outsourcing steel, but the disadvantages of this method are complex construction, long construction period, large interference to the tower body, limited reinforcement effect, and poor long-term effect. The characteristics of the corroded parts of the steel tower are usually ignored, and there is a lack of reasonable reinforcement design and optimization process, resulting in unsatisfactory reinforcement effect. Fiber-reinforced plastic (FRP) has the advantages of excellent strength-to-weight ratio, corrosion resistance, and simple construction. It can effectively improve the bearing capacity and durability of the structure and has gradually become an emerging material for reinforcing corroded steel structures. However, in practical applications, the combination of fiber-reinforced plastic and steel structure has problems such as uneven interface adhesion and slippage, which affects the reinforcement effect. How to improve the corrosion reinforcement of fiber-reinforced plastic for transmission angle steel towers has become a key technical problem that needs to be solved urgently. Summary of the invention

[0003] Technical problem to be solved by the present invention: In view of the above-mentioned problems in the prior art, a method and system for corrosion reinforcement of transmission angle steel towers based on fiber composite lamination are provided. The present invention aims to solve the problem of unsatisfactory reinforcement effect in the prior art, improve the corrosion reinforcement effect of fiber composites on transmission angle steel towers, thereby increasing the service life and safety of steel towers, and providing a scientific and systematic design solution for corrosion reinforcement of transmission angle steel towers.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A method for reinforcing a power transmission angle steel tower corrosion based on fiber composite lamination, comprising the following steps: S1, evaluating the transmission angle steel tower rods to obtain corrosion state data; conducting a mechanical analysis on the operating conditions of the transmission angle steel tower rods to determine the external loads to which the angle steel tower is subjected in actual work; S2, selecting the material type of the fiber composite and the composite lamination structure parameters for reinforcement design according to the corrosion state data of the steel tower and the bearing requirements of the external load to obtain an initial reinforcement design scheme; S3, using finite element analysis software to establish a fiber composite-steel adhesive interface model for the current reinforcement design scheme, and based on the fiber composite-steel adhesive interface model Perform stress analysis and analyze the slip behavior of the fiber composite and steel interface to determine whether the current reinforcement design is effective; S4, determine the effective bonding length of the fiber composite and the transmission angle steel tower rod reinforcement interface according to the simulation analysis results of the stress analysis; S5, perform a load-deformation performance test on the current reinforcement design to verify whether the reinforced transmission angle steel tower rod meets the stress requirements. If the reinforcement design is effective and the reinforced transmission angle steel tower rod meets the stress requirements, the reinforcement design is used as the final reinforcement design, and the process ends and exits; otherwise, adjust the reinforcement design and jump to step S3 again.

[0005] Optionally, evaluating the transmission angle steel tower poles to obtain corrosion status data in step S1 refers to using part or all of an ultrasonic detector and an X-ray flaw detector to detect the surface and internal corrosion conditions of the transmission angle steel tower poles to obtain the corrosion status data of the transmission angle steel tower poles, including corrosion depth and corrosion area.

[0006] Optionally, in step S1, performing a mechanical analysis on the operating conditions of the transmission angle steel tower rods to determine the external loads to which the angle steel tower is subjected in actual operation includes: obtaining the operating conditions of the transmission angle steel tower rods, including wind loads, ice loads and seismic loads, by using on-site monitoring data or by on-site measurements, and performing a mechanical analysis in combination with the structure of the transmission angle steel tower rods to determine the external loads to which the transmission angle steel tower rods are subjected in actual operation.

[0007] Optionally, in step S2, the composite laminate structure is an integral structure formed by bonding multiple fiber composite layers through a bonding layer composed of an adhesive, and the composite laminate structure is pasted on the corroded part of the transmission angle steel tower pole and wraps the corroded part of the transmission angle steel tower pole, and the composite laminate structure parameters include the number of layers, thickness and arrangement of a single fiber composite layer.

[0008] Optionally, step S3 includes: S3.1, import or draw the three-dimensional model of the fiber composite material and the transmission angle steel tower member in the current reinforcement design scheme in the finite element software, mesh the three-dimensional model and assign material parameters including density, elastic modulus and Poisson's ratio; S3.2, performing degradation treatment on the transmission angle steel tower member according to the corrosion state data, including classifying the corrosion area on the transmission angle steel tower member into two levels of severe corrosion and slight corrosion according to the corrosion state data, and simulating severe corrosion by adding an open hole defect to the severe corrosion area, and simulating slight corrosion by reducing the value of material parameters to the slight corrosion area; S3.3, using a three-dimensional solid cohesion unit in the finite element software to simulate the bonding layer composed of the adhesive, and connecting the three-dimensional entities of the fiber composite material, the transmission angle steel tower member and the bonding layer using a "Tie" connection to form a fiber composite material-steel bonding interface model; S3.4, set the analysis step to analyze the static state of the fiber composite-steel adhesive interface model, add the external force load borne by the overall structure, and set the boundary conditions in actual operation; S3.5, based on the fiber composite-steel adhesive interface model, a stress analysis is performed and the slip behavior of the fiber composite and steel interface is analyzed to determine whether the current reinforcement design scheme is effective. If slip behavior occurs at the fiber composite and steel interface, the current reinforcement design scheme is judged to be invalid; otherwise, the current reinforcement design scheme is judged to be effective.

[0009] Optionally, in step S3.5, the slippage of the interface between the fiber composite and the steel includes interface debonding, interface slip and interface damage, wherein the interface debonding refers to the separation of the adhesive layer from the substrate due to insufficient bonding between the fiber composite and the bonding layer, and between the power transmission angle steel tower rod and the bonding layer; the interface slip refers to a certain relative displacement between the fiber composite and the power transmission angle steel tower rod; and the interface damage refers to tearing or damage of the fiber composite or the power transmission angle steel tower rod.

[0010] Optionally, the calculation function expression of the effective bonding length in step S4 is: , in, is the effective bonding length of the reinforced interface between the fiber composite and the transmission angle steel tower member, is the characteristic length, is the external load, and are the elastic modulus of the fiber composite and the transmission angle steel tower, , are the thickness of fiber composite material and transmission angle steel tower pole, , are the thermal expansion coefficients of fiber composites and transmission angle steel tower members, is the temperature difference between the curing temperature of the adhesive and the temperature of the use environment, where the characteristic length The calculation function expression is: , in, , , are the shear moduli of the fiber composite, transmission angle steel tower member and bonding layer, is the thickness of the bonding layer.

[0011] In addition, the present invention also provides a transmission angle steel tower corrosion reinforcement system based on fiber composite lamination, comprising a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the transmission angle steel tower corrosion reinforcement method based on fiber composite lamination.

[0012] In addition, the present invention also provides a computer-readable storage medium, in which a computer program or instruction is stored, and the computer program or instruction is programmed or configured to execute the fiber composite lamination-based transmission angle steel tower corrosion reinforcement method through a processor.

[0013] In addition, the present invention also provides a computer program product, including a computer program or an instruction, wherein the computer program or the instruction is programmed or configured to execute the fiber composite lamination-based transmission angle steel tower corrosion reinforcement method through a processor.

[0014] Compared with the prior art, the present invention mainly has the following advantages: the method of the present invention includes evaluating and analyzing the corrosion state data and load-bearing requirements of the transmission angle steel tower rod and designing a reinforcement design scheme; using finite element analysis software to perform force analysis on the reinforcement design scheme, and analyzing the sliding behavior to determine whether the current reinforcement design scheme is effective and calculate the effective bonding length; if the reinforcement design scheme is effective and the reinforced transmission angle steel tower rod meets the stress requirements of the load-deformation performance test, the reinforcement design scheme is used as the final reinforcement design scheme, otherwise the reinforcement design scheme is adjusted to continue iteration. In view of the problems of uneven interface bonding force and slippage in the combination of fiber composites and steel structures, the present invention accurately identifies the corrosion area in the transmission angle steel tower, analyzes the slippage behavior of the composite-steel interface by finite element simulation, and determines the effective bonding length of the reinforcement design, which can solve the problem of unsatisfactory reinforcement effect in the prior art, improve the corrosion reinforcement effect of fiber composites on the transmission angle steel tower, thereby improving the service life and safety of the steel tower, and providing a scientific and systematic design scheme for the corrosion reinforcement of the transmission angle steel tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the basic flow of the method of the embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the external structure of the reinforcement design solution in an embodiment of the present invention.

[0017] Figure 3It is a schematic diagram of the external structure of the reinforcement design solution in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figure 1 As shown, the corrosion reinforcement method of the power transmission angle steel tower based on fiber composite lamination in this embodiment includes the following steps: S1, evaluating the transmission angle steel tower rods to obtain corrosion status data; performing mechanical analysis on the operating conditions of the transmission angle steel tower rods to determine the external loads to which the angle steel tower is subjected in actual work; S2, selecting the material type of the fiber composite and the composite lamination structure parameters for reinforcement design according to the corrosion status data of the steel tower and the bearing requirements of the external load to obtain an initial reinforcement design scheme; S3, using finite element analysis software to establish a fiber composite-steel adhesive interface model for the current reinforcement design scheme, based on the fiber composite-steel adhesive interface The model performs stress analysis and analyzes the slip behavior of the fiber composite and steel interface to determine whether the current reinforcement design is effective; S4, determines the effective bonding length of the fiber composite and the transmission angle steel tower rod reinforcement interface according to the simulation analysis results of the stress analysis; S5, performs a load-deformation performance test on the current reinforcement design to verify whether the reinforced transmission angle steel tower rod meets the stress requirements. If the reinforcement design is effective and the reinforced transmission angle steel tower rod meets the stress requirements, the reinforcement design is used as the final reinforcement design, and the process ends and exits; otherwise, the reinforcement design is adjusted and the step S3 is jumped again.

[0020] In step S1 of this embodiment, evaluating the transmission angle steel tower rods to obtain corrosion status data refers to using part or all of an ultrasonic detector and an X-ray flaw detector to detect the surface and internal corrosion of the transmission angle steel tower rods to obtain the corrosion status data of the transmission angle steel tower rods, including the corrosion depth and corrosion area. By judging the degree of corrosion, the corrosion depth, corrosion area and other data of each part are obtained to provide a basis for subsequent reinforcement design.

[0021] In step S1 of this embodiment, a mechanical analysis is performed on the operating conditions of the transmission angle steel tower rods to determine the external loads to which the angle steel tower is subjected in actual operation, including: obtaining the operating conditions of the transmission angle steel tower rods, including wind loads, ice loads and seismic loads, by using on-site monitoring data or by on-site measurements, and performing a mechanical analysis in combination with the structure of the transmission angle steel tower rods to determine the external loads to which the transmission angle steel tower rods are subjected in actual operation.

[0022] The fiber composite lamination theory is a theoretical method used to analyze and design a structure composed of multiple laminated materials. In step S2 of this embodiment, the composite laminate structure is an integral structure formed by bonding multiple fiber composite layers through a bonding layer composed of an adhesive, and the composite laminate structure is pasted on the corroded part of the transmission angle steel tower pole and wraps the corroded part of the transmission angle steel tower pole. The composite laminate structure parameters include the number of layers, thickness and arrangement of a single fiber composite layer. The number of layers, thickness and arrangement of the material can be adjusted according to the design requirements to achieve the required mechanical properties. Figure 2 and Figure 3 As shown, where F represents the external load, a is the transmission angle steel tower member, and b is the composite laminated structure. In this embodiment, in view of the corrosion of the angle steel, a composite laminated structure b composed of a fiber composite material and an adhesive is used to bond and reinforce the corroded transmission angle steel tower member a. The cured or uncured composite laminated structure b is bonded to the corroded part of the transmission angle steel tower member a by the adhesive, and the composite laminated structure b is used to share part of the load to achieve the repair and reinforcement of the transmission angle steel tower member a. In this embodiment, the corroded transmission angle steel tower is reinforced by using a fiber composite material (such as carbon fiber or glass fiber) through the reinforcement of the composite laminated structure b, thereby solving the problems of long construction period and high cost in traditional reinforcement methods (such as steel welding or outsourcing steel).

[0023] Step S3 of this embodiment includes: S3.1, import or draw the three-dimensional model of the fiber composite material and the transmission angle steel tower member in the current reinforcement design scheme in the finite element software (such as ABAQUS, etc.), mesh the three-dimensional model and assign material parameters including density, elastic modulus and Poisson's ratio; S3.2, performing degradation treatment on the transmission angle steel tower member according to the corrosion state data, including classifying the corrosion area on the transmission angle steel tower member into two levels of severe corrosion and slight corrosion according to the corrosion state data, and simulating severe corrosion by adding an open hole defect to the severe corrosion area, and simulating slight corrosion by reducing the value of material parameters to the slight corrosion area; S3.3, using a three-dimensional solid cohesive element in the finite element software to simulate the bonding layer composed of the adhesive, and connecting the three-dimensional entities of the fiber composite material, the transmission angle steel tower member and the bonding layer using a "Tie" connection to form a fiber composite material-steel bonding interface model; S3.4, set the analysis step to analyze the static state of the fiber composite-steel adhesive interface model, add the external force load borne by the overall structure, and set the boundary conditions in actual operation; S3.5, based on the fiber composite-steel adhesive interface model, the force analysis and the slip behavior of the fiber composite and steel interface are analyzed to determine whether the current reinforcement design is effective. If the fiber composite and steel interface slip behavior occurs, the current reinforcement design is invalid, otherwise the current reinforcement design is valid. Through force analysis, the stress analysis under different working conditions can obtain the distribution diagram of stress and deformation, and the effective bonding length can be found according to the stress results. The slip behavior of the composite-steel adhesive interface can be analyzed according to the deformation results.

[0024] In the finite element simulation of composite-steel interface slip in step S3 of this embodiment, the slip behavior of the composite and steel structure reinforcement interface is analyzed by using finite element simulation to optimize the composite laminate structure, ensure good bonding between the composite and the steel tower structure, and avoid reinforcement failure caused by interface slip.

[0025] In step S3.5 of this embodiment, the slippage of the fiber composite and steel interface includes interface debonding, interface slippage and interface damage. Interface debonding refers to the separation of the adhesive layer from the substrate due to insufficient bonding between the fiber composite and the bonding layer, or between the power transmission angle steel tower bar and the bonding layer; interface slippage refers to a certain relative displacement between the fiber composite and the power transmission angle steel tower bar; interface damage refers to tearing or damage of the fiber composite or the power transmission angle steel tower bar. The calculation function expression of the effective bonding length in step S4 of this embodiment is: , in, is the effective bonding length of the reinforced interface between the fiber composite and the transmission angle steel tower member, is the characteristic length, is the external load, and are the elastic modulus of the fiber composite and the transmission angle steel tower, , are the thickness of fiber composite material and transmission angle steel tower pole, , are the thermal expansion coefficients of fiber composites and transmission angle steel tower members, is the temperature difference between the curing temperature of the adhesive and the temperature of the use environment, where the characteristic length The calculation function expression is: , in, , , are the shear moduli of the fiber composite, transmission angle steel tower member and bonding layer, is the thickness of the bonding layer. It can be seen that in the method of this embodiment, the effective bonding length of the composite-steel structure reinforcement interface is designed and determined based on the sliding simulation results combined with theoretical analysis and calculation, which ensures that the fiber composite and the transmission angle steel tower rod structure are fully bonded, enhances the reinforcement effect and avoids unnecessary energy loss.

[0026] In step S5 of this embodiment, when the load-deformation performance test is performed on the current reinforcement design scheme, since the transmission angle steel tower rods should be surface treated on the corroded parts before reinforcement to remove the corrosive substances and ensure good bonding between the composite material and the steel tower structure, the surface treatment can be appropriately optimized in the simulation software, for example, the surface treatment of severe corrosion is simulated by adjusting the size of the opening defect for the severely corroded corrosion area, and the surface treatment of slight corrosion is simulated by adjusting the value of the material parameter for the slightly corroded corrosion area. By selecting the reinforced part for load-deformation performance test, check whether the reinforced steel tower meets the design requirements of stress, deformation, etc. If the test results show that the reinforced angle steel tower can meet the requirements, the reinforcement scheme can be completed; otherwise, return to step S3, adjust the reinforcement scheme, optimize the reinforcement method of the rods with excessive stress, and redesign the composite laminate structure. Repeat this process until all stress requirements are met. In step S5 of this embodiment, the reinforcement effect is verified by combining the test data and the finite element simulation results, and the design is further optimized to improve the bearing capacity and service life of the steel tower.

[0027] In summary, the corrosion reinforcement method of the transmission angle steel tower based on fiber composite lamination in this embodiment has the following advantages: (1) Through corrosion assessment, accurate data support is provided for the reinforcement design to ensure the pertinence and effectiveness of the reinforcement scheme. (2) Considering the complex loads of the transmission angle steel tower in actual operation, it is ensured that the reinforcement scheme can cope with various working conditions and improve the reliability of the reinforcement effect. (3) The fiber composite material reinforcement scheme is adopted, so that the reinforced structure can maintain a light weight while improving the bearing capacity, avoiding increasing the burden on the steel tower. At the same time, the adhesive reinforcement operation is convenient, which greatly improves the reinforcement efficiency and reduces the investment cost. (4) Combining the fiber composite lamination theory and finite element simulation, the slip behavior of the composite and steel structure reinforcement interface is accurately evaluated, avoiding the problem of the inability to accurately design the bonding length of the adhesive interface in the traditional method. (5) By conducting load-deformation performance tests on the reinforced parts, the feasibility and safety of the reinforcement scheme are ensured, and the expected effect can be achieved in practical applications. Therefore, the corrosion reinforcement method of the power transmission angle steel tower based on fiber composite lamination in this embodiment can effectively solve the problem of unsatisfactory reinforcement effect in the prior art. Based on the corrosion degree and load requirements of the angle steel tower, the method uses fiber composites to reinforce the steel structure, uses finite element simulation to analyze the slip behavior of the composite-steel adhesive interface, determines the effective bonding length of the composite-steel adhesive interface in the reinforcement design, improves the reinforcement effect, and thus effectively improves the service life and safety of the steel tower, providing a scientific and systematic design solution for the corrosion reinforcement of the power transmission angle steel tower.

[0028] In addition, this embodiment also provides a transmission angle steel tower corrosion reinforcement system based on fiber composite lamination, including an interconnected microprocessor and a memory, wherein the microprocessor is programmed or configured to execute the transmission angle steel tower corrosion reinforcement method based on fiber composite lamination.

[0029] In addition, this embodiment also provides a computer-readable storage medium, in which a computer program or instruction is stored, and the computer program or instruction is programmed or configured to execute the fiber composite lamination-based transmission angle steel tower corrosion reinforcement method through a processor.

[0030] In addition, this embodiment also provides a computer program product, including a computer program or instructions, which are programmed or configured to execute the fiber composite lamination-based transmission angle steel tower corrosion reinforcement method through a processor.

[0031] Those skilled in the art should understand that the technical solutions provided by the embodiments of the present application may be in the form of methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the process Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including an instruction device, which implements the functions specified in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0032] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A method for corrosion reinforcement of transmission angle steel tower based on fiber composite lamination, characterized in that: The method comprises the following steps: S1, evaluating the transmission angle steel tower members to obtain corrosion status data; conducting mechanical analysis on the operating conditions of the transmission angle steel tower members to determine the external loads to which the angle steel tower members are subjected in actual operation; S2, selecting the material type of the fiber composite and the composite laminated structure parameters for reinforcement design according to the corrosion status data of the transmission angle steel tower members and the bearing requirements of the external loads to obtain an initial reinforcement design scheme; S3, using finite element analysis software to establish a fiber composite-steel adhesive interface model for the current reinforcement design scheme, and based on the fiber composite-steel adhesive interface model, a reinforcement design method for the transmission angle steel tower members is constructed. S4, determine the effective bonding length of the reinforcement interface between the fiber composite and the transmission angle steel tower member according to the simulation analysis results of the force analysis; S5, perform a load-deformation performance test on the current reinforcement design scheme to verify whether the reinforced transmission angle steel tower member meets the stress requirements. If the reinforcement design scheme is effective and the reinforced transmission angle steel tower member meets the stress requirements, the reinforcement design scheme is used as the final reinforcement design scheme, and the process ends and exits; Otherwise, adjust the reinforcement design plan and jump to step S3 again.

2. The corrosion reinforcement method for transmission angle steel tower based on fiber composite lamination according to claim 1 is characterized in that: In step S1, evaluating the transmission angle steel tower poles to obtain corrosion status data refers to using part or all of an ultrasonic detector and an X-ray flaw detector to detect the surface and internal corrosion conditions of the transmission angle steel tower poles to obtain the corrosion status data of the transmission angle steel tower poles, including corrosion depth and corrosion area.

3. The corrosion reinforcement method for transmission angle steel tower based on fiber composite lamination according to claim 1 is characterized in that: In step S1, a mechanical analysis is performed on the operating conditions of the transmission angle steel tower rods to determine the external loads to which the angle steel tower is subjected in actual operation, including: obtaining the operating conditions of the transmission angle steel tower rods, including wind loads, ice loads and earthquake loads, by using on-site monitoring data or on-site measurements, and performing a mechanical analysis in combination with the structure of the transmission angle steel tower rods to determine the external loads to which the transmission angle steel tower rods are subjected in actual operation.

4. The corrosion reinforcement method for transmission angle steel tower based on fiber composite lamination according to claim 1 is characterized in that: In step S2, the composite laminate structure is an integral structure formed by bonding multiple fiber composite layers through a bonding layer composed of an adhesive, and the composite laminate structure is pasted on the corroded part of the transmission angle steel tower pole and wraps the corroded part of the transmission angle steel tower pole. The composite laminate structure parameters include the number of layers, thickness and arrangement of a single fiber composite layer.

5. The corrosion reinforcement method for transmission angle steel tower based on fiber composite lamination according to claim 4 is characterized in that: Step S3 includes: S3.1, import or draw the three-dimensional model of the fiber composite material and the transmission angle steel tower member in the current reinforcement design scheme in the finite element software, mesh the three-dimensional model and assign material parameters including density, elastic modulus and Poisson's ratio; S3.2, performing degradation treatment on the transmission angle steel tower member according to the corrosion state data, including classifying the corrosion area on the transmission angle steel tower member into two levels of severe corrosion and slight corrosion according to the corrosion state data, and simulating severe corrosion by adding an open hole defect to the severe corrosion area, and simulating slight corrosion by reducing the value of material parameters to the slight corrosion area; S3.3, using a three-dimensional solid cohesion unit in the finite element software to simulate the bonding layer composed of the adhesive, and connecting the three-dimensional entities of the fiber composite material, the transmission angle steel tower member and the bonding layer using a "Tie" connection to form a fiber composite material-steel bonding interface model; S3.4, set the analysis step to analyze the static state of the fiber composite-steel adhesive interface model, add the external force load borne by the overall structure, and set the boundary conditions in actual operation; S3.5, based on the fiber composite-steel adhesive interface model, a stress analysis is performed and the slip behavior of the fiber composite and steel interface is analyzed to determine whether the current reinforcement design scheme is effective. If slip behavior occurs at the fiber composite and steel interface, the current reinforcement design scheme is judged to be invalid; otherwise, the current reinforcement design scheme is judged to be effective.

6. The corrosion reinforcement method for transmission angle steel tower based on fiber composite lamination according to claim 5 is characterized in that: In step S3.5, the slippage of the interface between the fiber composite and the steel includes interface debonding, interface slip and interface damage. The interface debonding refers to the separation of the adhesive layer from the substrate due to insufficient bonding between the fiber composite and the bonding layer, and between the power transmission angle steel tower rod and the bonding layer; the interface slip refers to a certain relative displacement between the fiber composite and the power transmission angle steel tower rod; the interface damage refers to tearing or damage of the fiber composite or the power transmission angle steel tower rod.

7. The corrosion reinforcement method for transmission angle steel tower based on fiber composite lamination according to claim 1 is characterized in that: The calculation function expression of the effective bonding length in step S4 is: ， in, is the effective bonding length of the reinforced interface between the fiber composite and the transmission angle steel tower member, is the characteristic length, is the external load, and are the elastic modulus of the fiber composite and the transmission angle steel tower, , are the thickness of fiber composite material and transmission angle steel tower pole, , are the thermal expansion coefficients of fiber composites and transmission angle steel tower members, is the temperature difference between the curing temperature of the adhesive and the temperature of the use environment, where the characteristic length The calculation function expression is: ， in, , , are the shear moduli of the fiber composite, transmission angle steel tower member and bonding layer, is the thickness of the bonding layer.

8. A fiber composite lamination-based transmission angle steel tower corrosion reinforcement system, comprising an interconnected microprocessor and a memory, characterized in that: The microprocessor is programmed or configured to execute the method for corrosion reinforcement of a power transmission angle steel tower based on fiber composite lamination as claimed in any one of claims 1 to 7.

9. A computer-readable storage medium having a computer program or instruction stored therein, characterized in that: The computer program or instruction is programmed or configured to execute the method for corrosion reinforcement of a power transmission angle steel tower based on fiber composite lamination as claimed in any one of claims 1 to 7 through a processor.

10. A computer program product comprising a computer program or instructions, characterized in that The computer program or instruction is programmed or configured to execute the method for corrosion reinforcement of a power transmission angle steel tower based on fiber composite lamination as claimed in any one of claims 1 to 7 through a processor.

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