A method and system for local reinforcement design of anti-typhoon collapse power transmission tower member

Abstract

The application discloses a kind of anti typhoon collapse power transmission tower member local reinforcement design method and system, wherein the method comprises: establishing power transmission line tower line system finite element model;Under the action of typhoon load, collapse simulation is carried out on the power transmission line tower line system finite element model, and the wind vibration response result of each different region in the power transmission line tower line system finite element model is obtained, and then the each different region is divided into single safety area and multiple weak areas;According to the wind vibration response result of each different region, the local strengthening coefficient corresponding to each weak area is calculated, and then the final local strengthening coefficient is obtained as the tower strength matching coefficient to the multiple weak areas for structural reinforcement.The present application can provide a theoretical basis for technical personnel to perform anti typhoon structural reinforcement on actual power transmission line tower line system, and has good practical value.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power transmission tower applications, in particular to a typhoon collapse-resistant power transmission tower member local reinforcement design method and system. BACKGROUND

[0002] At present, the design specification of the power transmission tower in China mainly considers the local favorable wind action and takes the return period wind speed as the design basis, but the design specification of the power transmission tower in the typhoon-prone area lacks the consideration of the strengthening mode for resisting typhoon collapse. According to the specification formulated by the International Electrotechnical Commission, the limit load, the safety load, the construction and maintenance load brought by different meteorological conditions in the normal state need to be considered, and the local reinforcement coefficient corresponding to each weak area of the power transmission tower is determined, so as to guide the staff to realize the structural reinforcement design of the power transmission tower. SUMMARY

[0003] The application provides a typhoon collapse-resistant power transmission tower member local reinforcement design method and system, so as to solve one or more technical problems in the prior art and at least provide a beneficial choice or create conditions.

[0004] The application provides a typhoon collapse-resistant power transmission tower member local reinforcement design method, which comprises the following steps:

[0005] Establishing a power transmission line tower-line system finite element model;

[0006] Carrying out collapse simulation on the power transmission line tower-line system finite element model under the action of typhoon load, obtaining the wind vibration response results of each different area in the power transmission line tower-line system finite element model, and then dividing the different areas into a single safety area and multiple weak areas;

[0007] According to the wind vibration response results of the different areas, the local reinforcement coefficient corresponding to each weak area is calculated, and then the final local reinforcement coefficient is obtained as a tower strength matching coefficient to reinforce the structure of the multiple weak areas.

[0008] Further, the power transmission line tower-line system finite element model comprises a power transmission tower finite element model and a ground wire model.

[0009] Further, the establishment of the power transmission line tower-line system finite element model comprises:

[0010] A power transmission tower finite element model is established by using a parameterized programming language in a finite element analysis software to write a power transmission tower structure command stream and combining node information and element information;

[0011] A macro file is generated according to the pre-planned conductor setting parameters and ground wire setting parameters, and the macro file is imported into the finite element analysis software, and the internal parametric programming language is used to establish the conductor and ground wire model by writing loop statements;

[0012] A new node is additionally created from each conductor node included in the conductor and ground wire model, and each new node is assigned an insulating material attribute.

[0013] Further, the collapse simulation of the transmission line tower-line system finite element model under the action of typhoon load includes:

[0014] The transmission line tower-line system finite element model is preferentially divided into different regions at different height positions, the wind speed time history of each region is obtained, and then the transmission tower wind load and the conductor and ground wire wind load corresponding to each region are calculated;

[0015] The parametric programming language inside the finite element analysis software is used to start applying the transmission tower wind load corresponding to each region to the transmission tower finite element model, and start applying the conductor and ground wire wind load corresponding to each region to the conductor and ground wire model.

[0016] Further, the collapse simulation of the transmission line tower-line system finite element model under the action of typhoon load also includes:

[0017] According to the material yield strength corresponding to all structural members in each region, the finite element analysis software is used to continuously perform run failure processing on the structural members reaching the material yield strength during the action of the typhoon load, until the transmission line tower-line system finite element model collapses.

[0018] Further, the wind vibration response results of each different region in the transmission line tower-line system finite element model are obtained, and then each different region is divided into a single safe region and multiple weak regions, including:

[0019] The time period from when the transmission line tower-line system finite element model starts to be subjected to the typhoon load to when it collapses is recorded, and the stress response curve of each different region in the time period is calculated by using the finite element analysis software;

[0020] The average stress of the member corresponding to each different region is calculated, and the region with the smallest average stress of the member is defined as a safe region, and all the remaining regions are defined as weak regions.

[0021] Further, the local strengthening coefficient corresponding to each weak region is calculated according to the wind vibration response results of each different region, including:

[0022] a first local reinforcement coefficient of the weak region is defined as a ratio of the second bar stress average value of the weak region to the first bar stress average value;

[0023] a second local reinforcement coefficient of the weak region is defined as a ratio of the second bar stress maximum value of the weak region to the first bar stress maximum value;

[0024] a third local reinforcement coefficient of the weak region is defined as a ratio of the second bar stress extreme value of the weak region to the first bar stress extreme value.

[0025] Further, all bar stresses in the safe region are arranged in descending order, and a first bar stress extreme value of the safe region is an average value of a plurality of bar stresses arranged in front according to a preset number.

[0026] Further, the process of obtaining the final local reinforcement coefficient comprises:

[0027] According to the first local reinforcement coefficient, the second local reinforcement coefficient and the third local reinforcement coefficient of each weak region, an average local reinforcement coefficient of each weak region is calculated.

[0028] Based on the plurality of average local reinforcement coefficients of the plurality of weak regions, a maximum value in the plurality of average local reinforcement coefficients is defined as the final local reinforcement coefficient.

[0029] In addition, an embodiment of the present application also provides a local reinforcement design system for a typhoon-resistant collapse transmission tower bar, which comprises:

[0030] at least one processor;

[0031] at least one memory for storing at least one program;

[0032] When the at least one program is executed by the at least one processor, the at least one processor realizes the typhoon-resistant collapse transmission tower bar local reinforcement design method.

[0033] The application has at least the following beneficial effects: by taking the wind vibration response result of the transmission line tower-line system finite element model under the action of typhoon load as a reference, and combining the collapse simulation test of the transmission line tower-line system finite element model to determine the weak areas of the transmission tower and the final local reinforcement coefficient, a theoretical basis can be provided for the technical personnel to perform structure reinforcement on the actual transmission line tower-line system, so that the actual transmission line tower-line system can play the role of resisting typhoon and preventing collapse to the greatest extent, and has good practical value. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the technical solutions of the application, and constitute a part of the specification, and are used to explain the technical solutions of the application together with the embodiments of the application, and do not constitute a limitation on the technical solutions of the application.

[0035] Figure 1 is a flowchart of a local reinforcement design method of a typhoon-resistant collapse transmission tower member in an embodiment of the application;

[0036] Figure 2 is a single transmission tower partition diagram in an embodiment of the application. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the application clearer, the application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and do not limit the application.

[0038] It should be noted that although the functional modules are divided in the system schematic diagram, and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from the module division in the system or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0039] Reference should be made to Figure 1 , Figure 1 is a flowchart of a local reinforcement design method of a typhoon-resistant collapse transmission tower member provided by an embodiment of the application, and the method comprises the following steps:

[0040] S101, a transmission line tower-line system finite element model is established, wherein the transmission line tower-line system finite element model comprises a transmission tower finite element model and a ground wire model;

[0041] S102, under the action of typhoon load, collapse simulation is performed on the power transmission line tower-line system finite element model, wind vibration response results of each different region in the power transmission line tower-line system finite element model are obtained, and then the each different region is divided into a single safety region and a plurality of weak regions;

[0042] S103, according to the wind vibration response results of the each different region, a local strengthening coefficient corresponding to each weak region is calculated, and then a final local strengthening coefficient is obtained as a tower strength matching coefficient to reinforce the plurality of weak regions.

[0043] In the above step S101, the establishment process of the power transmission line tower-line system finite element model includes: first, using the parametric programming language (i.e. the existing APDL, ANSYS Parametric Design Language) inside the finite element analysis software (i.e. the existing ANSYS software) to write a power transmission tower-line system command stream, the general sequence is to write a power transmission tower structure command stream first, and then gradually establish the power transmission tower finite element model according to the basic node information and element information; second, the conductor setting parameters and ground wire setting parameters required for establishing the ground wire model are written in advance, wherein the conductor setting parameters and the ground wire setting parameters both include model, cross-sectional area, outer diameter, mass, elastic modulus, expansion coefficient and breaking force, an empty macro file is created and the conductor setting parameters and the ground wire setting parameters are passed to the macro file, and then the current macro file is imported into the finite element analysis software, and the ground wire model is established by writing a loop statement using the parametric programming language inside the finite element analysis software; finally, a new node is additionally created from each conductor node included in the ground wire model, and each new node is assigned an insulating material attribute, wherein the insulating material attribute includes model, single insulator height, single insulator diameter and insulator string mass, and the actual effect of the insulator string is simulated in the power transmission line tower-line system finite element model.

[0044] It should be noted that when establishing the ground wire model, a plurality of ground wire nodes need to be labeled in advance to make technical preparations for subsequently applying typhoon load to the plurality of ground wire nodes.

[0045] In the above step S101, the X-axis direction of the power transmission line tower-line system finite element model is consistent with the crossarm axis direction of the power transmission tower finite element model, the Y-axis direction of the power transmission line tower-line system finite element model is consistent with the conductor direction of the ground wire model, and the Z-axis direction of the power transmission line tower-line system finite element model is consistent with the height direction of the power transmission tower finite element model.

[0046] In step S102 above, the process of applying typhoon load to the finite element model of the transmission line tower system includes: firstly, dividing the finite element model of the transmission line tower system into different regions at different heights, referring to... Figure 2 The diagram showing the partitioning of a single transmission tower is as follows: Region ① is the upper crossarm connection region; Region ② is the connection region between the upper and middle crossarms; Region ③ is the middle crossarm connection region; Region ④ is the connection region between the middle and lower crossarms; Region ⑤ is the lower crossarm connection region; Regions ⑥, ⑦, and ⑧ are all tower body regions; and Region ⑨ is the tower leg region. This embodiment of the invention does not limit the number of these different regions. Next, the wind speed time histories of each different region are obtained, and then the corresponding wind loads on the transmission tower and conductors are calculated. Finally, using the parametric programming language within the finite element analysis software, the wind loads on the transmission tower corresponding to each different region are applied to the finite element model of the transmission tower, and simultaneously, the wind loads on the conductors corresponding to each different region are applied to the conductor model.

[0047] In this embodiment of the invention, the wind speed time histories of the various regions are obtained using harmonic synthesis. Specifically, the Kaimal spectrum is first used as the power spectrum of a stationary random process to simulate and generate fluctuating wind speed time histories. Then, the average wind speed time histories of the various regions are superimposed with the fluctuating wind speed time histories to obtain the wind speed time histories of the various regions. The formula for calculating the average wind speed time histories of any region is U = (z / z...). r ) α ×U r U is the average wind speed time history of this region. r Let z be the basic wind speed time history at a known reference height, and z be the height of this region above the ground where the finite element model of the transmission line tower system is located. r The reference height is known, and α is the surface roughness of the ground where the finite element model of the transmission line tower system is located.

[0048] In this embodiment of the invention, the wind load on the transmission tower and the wind load on the conductor can be calculated based on the wind speed time histories of each different region. Since the technicians pre-set the direction of the typhoon load applied to the finite element model of the transmission tower to be parallel to the ground, the calculation formula for the wind load on the transmission tower corresponding to any region is as follows: F t The wind load on the transmission towers in this area is given by ρ, where ρ is the air density and C is the density of air. ft A is the transverse wind force coefficient. t Let be the lateral projected area of ​​all members within this region. is the wind direction angle; since the incoming flow direction of the typhoon load applied to the ground wire model by the technical personnel is perpendicular to the axis direction of the ground wire and parallel to the ground, in the case of ignoring the viscous force and friction force generated by the typhoon load along the ground wire direction, the ground wire wind load in the crosswind direction and the ground wire wind load in the vertical wind direction should be applied to the ground wire model at the same time, and the ground wire wind loads in the two different wind directions are equal in value, and the calculation formula of the ground wire wind load corresponding to any one region is F c is the ground wire wind load of the region, C f is the ground wire wind force coefficient, A c is the ground wire wind area.

[0049] In the embodiment of the application, the parameter programming language in the finite element analysis software can be used to apply the transmission tower wind load and the ground wire wind load corresponding to each different region to the transmission line tower-line system finite element model, which is specifically: for the transmission tower finite element model, the transmission tower wind load corresponding to each different region is applied to the four corner points in the same horizontal plane in the region; for the ground wire model, the ground wire wind load corresponding to each different region is applied to all the ground wire nodes marked in the region, and the corresponding ground wire wind load is ensured to be applied in the crosswind direction (i.e. along the X-axis direction) and the vertical wind direction (i.e. along the Z-axis direction) at each ground wire node.

[0050] In the above step S102, the implementation process of the collapse simulation of the transmission line tower-line system finite element model under the action of the typhoon load is: according to the material yield strength corresponding to all the structural members in each different region, the finite element analysis software continuously performs run failure processing on the structural members reaching the material yield strength during the action of the typhoon load, until the transmission line tower-line system finite element model collapses.

[0051] More specifically, first, the material yield strength corresponding to all the structural members in each different region is determined, and during the continuous application of the typhoon load to the transmission line tower-line system finite element model by the finite element analysis software, the finite element analysis software is used to identify the stress value corresponding to all the structural members in each different region in real time by using the live and dead unit method, and when the stress value corresponding to any one structural member reaches the material yield strength corresponding to the structural member, it is determined that the structural member is run failure and is withdrawn from the working mode. After a certain number of structural members are controlled to exit the work by continuously executing the above identification and judgment method, the transmission line tower-line system finite element model will collapse.

[0052] It should be noted that the transmission line tower-line system finite element model collapses under the action of strong typhoon mainly in four types of damage forms, namely, upper cross arm damage form, middle cross arm damage form, lower cross arm damage form and tower rod breakage damage form, which are described as follows: the upper cross arm damage form is that the upper cross arm connection is subjected to the gravity of the conductor and is subjected to compression bending yield damage; the middle cross arm damage form is that the middle cross arm connection is subjected to yield under the action of typhoon load, and the middle cross arm is directly subjected to the gravity of the conductor and is subjected to downward displacement to cause operation failure; the tower rod breakage damage form is that the connection between the upper cross arm and the middle cross arm is subjected to breakage under the combined action of typhoon load and the gravity of the conductor; and the lower cross arm damage form is that the lower cross arm connection is subjected to yield under the combined action of typhoon load and earthquake load, and the lower cross arm is directly subjected to the gravity of the conductor and is subjected to downward displacement to cause operation failure.

[0053] In the above step S102, the specific implementation process of dividing the various different regions into a single safe region and multiple weak regions includes: first, recording the time period from when the transmission line tower-line system finite element model starts to be subjected to typhoon load to when collapse occurs, and using the finite element analysis software to monitor the wind vibration response results of the various different regions in the transmission line tower-line system finite element model in the time period, and then calculating and outputting the stress response curves of the various different regions in the time period; second, calculating the average stress of the rod corresponding to each of the various different regions, and defining the region with the minimum average stress of the rod as a safe region, and defining all the remaining regions as weak regions.

[0054] In the above step S103, the stress response curves of the various different regions in the time period are taken as the source of relevant parameters, and the calculation process of the local reinforcement coefficient corresponding to each of the multiple weak regions is described as follows:

[0055] The first average rod stress σ0 corresponding to the safe region and the second average rod stress σ corresponding to each of the weak regions are obtained, and the ratio of the second average rod stress σ corresponding to the weak region to the first average rod stress σ0 is defined as the first local reinforcement coefficient k1 corresponding to the weak region, i.e. k1=σ / σ0;

[0056] The first maximum rod stress σ m0 corresponding to the safe region and the second maximum rod stress σ m corresponding to each of the weak regions are obtained, and the ratio of the second maximum rod stress σ m corresponding to the weak region to the first maximum rod stress σ m0 is defined as the second local reinforcement coefficient k2 corresponding to the weak region, i.e. k2=σm / σ m0 ;

[0057] the first bar stress maximum value σ p0 corresponding to each weak region, and the second bar stress maximum value σ p corresponding to the weak region, and the first bar stress maximum value σ p , the ratio of the second bar stress maximum value σ p0 corresponding to the weak region is defined as the third local reinforcement coefficient k3 = σ p / σ p0 .

[0058] In the embodiment of the present application, a fixed ratio is first set, and the first bar stress maximum value σ p0 corresponding to the safe region is obtained as follows: first, all bar stresses contained in the safe region are arranged in descending order, and a plurality of bar stresses arranged in the front are extracted according to a preset number, wherein the preset number is the product of the number of all bars contained in the safe region and the fixed ratio, and then the average value of the plurality of bar stresses is defined as the first bar stress maximum value σ p0 corresponding to the safe region.

[0059] Similarly, the second bar stress maximum value σ p corresponding to any weak region is obtained as follows: first, all bar stresses contained in the weak region are arranged in descending order, and a plurality of bar stresses arranged in the front are extracted according to a first preset number, wherein the first preset number is the product of the number of all bars contained in the weak region and the fixed ratio, and then the average value of the plurality of bar stresses is defined as the second bar stress maximum value σ p corresponding to the weak region.

[0060] In the embodiment of the present application, when it is determined that the stress distribution of all the rods in each different region is relatively uniform and reasonable, the plurality of first local reinforcement coefficients corresponding to the plurality of weak regions can be directly referenced to assist in subsequent structural reinforcement design; when it is determined that the stress distribution of all the rods in each different region is not uniform, in view of the fact that a single rod with a large defect in structural design in each different region cannot be reflected, the plurality of second local reinforcement coefficients corresponding to the plurality of weak regions can be directly referenced to assist in subsequent structural reinforcement design; when it is determined that the stress distribution of all the rods in each different region is not uniform, in view of the fact that a plurality of rods with a large defect in structural design in each different region exist, in order to overcome the contingency factor caused by a single rod, the plurality of third local reinforcement coefficients corresponding to the plurality of weak regions can be directly referenced to assist in subsequent structural reinforcement design; however, in general, the plurality of first local reinforcement coefficients, the plurality of second local reinforcement coefficients and the plurality of third local reinforcement coefficients corresponding to the plurality of weak regions need to be comprehensively considered for more reliability.

[0061] In the step S103, the obtaining process of the final local reinforcement coefficient includes: first, mean value solving is performed on the first local reinforcement coefficient, the second local reinforcement coefficient and the third local reinforcement coefficient corresponding to each weak region to obtain an average local reinforcement coefficient corresponding to each weak region; and second, based on the plurality of average local reinforcement coefficients corresponding to the plurality of weak regions, the maximum value in the plurality of average local reinforcement coefficients is defined as the final local reinforcement coefficient.

[0062] In the step S103, the implementation of the structural reinforcement of the plurality of weak regions by using the final local reinforcement coefficient as a tower strength matching coefficient is that: the material strength of the plurality of weak regions is improved by replacing a main material or the like, or the connection strength between the rods in the plurality of weak regions is improved by strengthening bolt connection, adding a reinforcing auxiliary material or the like, so that the overall structure of the transmission line tower-line system finite element model is more secure.

[0063] In the embodiment of the present application, the wind vibration response result of the transmission line tower-line system finite element model under the action of typhoon load is taken as a reference, and the collapse simulation test of the transmission line tower-line system finite element model is combined to determine the weak regions of the transmission tower and the final local reinforcement coefficient, which can provide a theoretical basis for technical personnel to perform structural reinforcement on an actual transmission line tower-line system, so that the actual transmission line tower-line system can play a role in resisting typhoon and preventing collapse to the greatest extent, and has good practical value.

[0064] In addition, the embodiment of the present application also provides a local reinforcement design system for a typhoon collapse-resistant transmission tower rod, which comprises:

[0065] at least one processor;

[0066] at least one memory for storing at least one program;

[0067] When the at least one program is executed by the at least one processor, the at least one processor implements the anti-typhoon collapse power transmission tower member local reinforcement design method of any one of the above embodiments.

[0068] The contents in the above method embodiments are all applicable to the system embodiments, the system embodiments achieve the same functions as the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0069] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The processor is the control center of the anti-typhoon collapse power transmission tower member local reinforcement design system, and connects each part of the entire anti-typhoon collapse power transmission tower member local reinforcement design system through various interfaces and lines.

[0070] The memory can be used to store the computer program and / or modules, and the processor realizes various functions of the anti-typhoon collapse power transmission tower member local reinforcement design system by running or executing the computer program and / or modules stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein: the program storage area is used to store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), etc.; and the data storage area is used to store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, for example, a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device or other volatile solid-state storage device.

[0071] While the application has been described in connection with very specific embodiments thereof, it will be understood that no limitation of the scope of the application is actually intended thereby, and the application should only be limited insofar as it is entitled to patent protection based on the description and drawings presented herewith, and the claims appended hereto, which should be construed in light of the prior art, to provide a broad interpretation, in accordance with the true intent and scope of the present application. Furthermore, any adaptations or modifications of the application as described above are contemplated as being within the scope of the present application.

Claims

1. A method for local reinforcement design of anti-typhoon collapse power transmission tower members, characterized in that, The method comprises: establishing a finite element model of a tower-line system of a power transmission line; performing collapse simulation on the finite element model of the tower-line system of the power transmission line under the action of a typhoon load, obtaining wind vibration response results of each different region in the finite element model of the tower-line system of the power transmission line, and then dividing the different regions into a single safe region and multiple weak regions; calculating a local strengthening coefficient corresponding to each weak region according to the wind vibration response results of the different regions, and then obtaining a final local strengthening coefficient as a tower strength matching coefficient to perform structural reinforcement on the multiple weak regions; wherein the calculation of the local strengthening coefficient corresponding to each weak region according to the wind vibration response results of the different regions comprises: obtaining a first bar stress average value corresponding to the safe region and a second bar stress average value corresponding to each weak region, and then defining a ratio of the second bar stress average value corresponding to the weak region to the first bar stress average value as a first local strengthening coefficient corresponding to the weak region; obtaining a first bar stress maximum value corresponding to the safe region and a second bar stress maximum value corresponding to each weak region, and then defining a ratio of the second bar stress maximum value corresponding to the weak region to the first bar stress maximum value as a second local strengthening coefficient corresponding to the weak region; obtaining a first bar stress maximum value corresponding to the safe region and a second bar stress maximum value corresponding to each weak region, and then defining a ratio of the second bar stress maximum value corresponding to the weak region to the first bar stress maximum value as a third local strengthening coefficient corresponding to the weak region.

2. The method of claim 1, wherein, The finite element model of the tower-line system of the power transmission line comprises a finite element model of a power transmission tower and a ground wire model.

3. The method of claim 2, wherein, The establishment of the finite element model of the tower-line system of the power transmission line comprises: writing a power tower structure command stream by using a parameterized programming language inside a finite element analysis software, and establishing the finite element model of the power transmission tower by combining node information and element information; generating a macro file according to pre-prepared conductor setting parameters and ground wire setting parameters, importing the macro file into the finite element analysis software, and establishing the ground wire model by writing a loop statement by using the parameterized programming language inside the finite element analysis software; creating a new node from each conductor node included in the ground wire model, and assigning an insulating material attribute to each new node.

4. The method of claim 2, wherein, The collapse simulation on the finite element model of the tower-line system of the power transmission line under the action of the typhoon load comprises: dividing the finite element model of the tower-line system of the power transmission line into different regions at different height positions, obtaining wind speed time histories of the different regions, and then calculating power transmission tower wind loads and ground wire wind loads corresponding to the different regions; applying the power transmission tower wind loads corresponding to the different regions to the finite element model of the power transmission tower by using a parameterized programming language inside a finite element analysis software, and applying the ground wire wind loads corresponding to the different regions to the ground wire model.

5. The method of claim 4, wherein, The collapse simulation of the transmission line tower-line system finite element model under the action of typhoon load further includes: According to the material yield strength corresponding to all structural members in each different region, the finite element analysis software is used to continuously perform operational failure processing on the structural members reaching the material yield strength during the action of typhoon load, until the transmission line tower-line system finite element model collapses.

6. The method of claim 5, wherein, The wind vibration response results of each different region in the transmission line tower-line system finite element model are obtained, and then the each different region is divided into a single safe region and multiple weak regions, which includes: The time period from when the transmission line tower-line system finite element model starts to be subjected to typhoon load to when it collapses is recorded, and the stress response curve of each different region in the time period is calculated by using the finite element analysis software; The average stress of the rod corresponding to each different region is calculated, and the region with the minimum rod average stress is defined as a safe region, and all the remaining regions are defined as weak regions.

7. The method of partial strengthening design of anti-wind-fail tower member of claim 1, wherein, All rod stresses contained in the safe region are arranged in descending order, and a number of rod stresses arranged in the front are extracted according to a preset number, and the first rod stress maximum value corresponding to the safe region is the average value of the number of rod stresses.

8. The method of claim 1, wherein, The final local reinforcement coefficient obtaining process includes: According to the first local reinforcement coefficient, the second local reinforcement coefficient and the third local reinforcement coefficient corresponding to each weak region, the average local reinforcement coefficient corresponding to each weak region is calculated; Based on the multiple average local reinforcement coefficients corresponding to the multiple weak regions, the maximum value in the multiple average local reinforcement coefficients is defined as the final local reinforcement coefficient.

9. A system for local reinforcement design of a wind-tsunami collapse resistant electric power transmission tower member, characterized by, The system includes: At least one processor; At least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the typhoon-resistant collapse transmission tower rod local reinforcement design method according to any one of claims 1 to 8.

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