A transmission tower structure reinforcement and energy dissipation device and method

Abstract

The present invention provides a transmission tower structure reinforcement and energy dissipation device and method, comprising three types of reinforcement energy dissipation components and three sets of connection devices; the first component is a single angle steel, with multiple bolt holes opened at both ends on the same side; the second component comprises a first sub-component and a second sub-component, which are connected to form a whole by bolts; the third component is a single angle steel, with rectangular steel welded at both ends of the angle steel; the first connection device consists of a third sub-component and a fourth sub-component, which are fixtures in the whole, so that the reinforced angle steel is connected to the component; the second connection device comprises a fifth sub-component, a sixth sub-component and a seventh sub-component, which are connected to the first component to form an outer frame; the third connection device is a wire wheel type connector, thin disc components on both sides have bolt holes opened at the edges, and the thick disc component placed in the middle has four rectangular parallelepiped grooves opened around it, which are filled with viscous damping liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line tower equipment, and in particular to a novel freely installed and disassembled power transmission tower section performance improvement device and method, which is mainly used for the reinforcement and reconstruction of power transmission line towers or steel structure building sections. Background Art

[0002] In recent years, frequent natural disasters have led to many power transmission line tower collapse accidents. Along with the aging of transmission lines, the safety and reliability of transmission line structures have received widespread attention. As an important component of transmission lines, the safety of transmission towers is related to the normal operation of the entire power grid system. Most of the existing transmission lines use the pole tower standards of the last century, and aging and corrosion phenomena are very obvious. After long-term use, the transmission tower components have varying degrees of damage and defects, resulting in changes in force performance and force transmission paths, which poses a great safety hazard to the transmission line and greatly increases the probability of collapse accidents. With the reduction of the bearing capacity of old transmission towers and the continuous increase in electricity demand, many transmission towers are in urgent need of performance improvement and reinforcement.

[0003] Since the overall demolition and reconstruction of transmission towers is uneconomical and unreasonable, non-destructive reinforcement of in-service transmission towers is an ideal method. The existing transmission tower reinforcement mainly focuses on welding or non-destructive reinforcement of angle steel components or tower legs, and has not yet considered the reinforcement of transmission tower sections. Existing studies have found that under adverse loads such as earthquakes and wind, the overall collapse of transmission towers often begins with the damage of sections caused by local vibration modes. Therefore, the performance improvement of transmission tower sections cannot be ignored.

[0004] Under the action of external loads, the continuity and force complexity of the transmission tower make it difficult to predict the failure sequence of the members, but there are regularities in the failure of the transmission tower section. At the same time, compared with the tedious reinforcement work of a single component, the installation of performance improvement devices for the transmission tower section is economical and reliable.

[0005] There are several common methods for strengthening transmission towers. Among them, the most common one is to increase the cross-section of the transmission tower components, such as T-type reinforcement, Y-type reinforcement and FRP new material reinforcement, etc. However, the reinforcement form is relatively rigid and the clamp form is complex. It is difficult to implement the reinforcement of the angle steel located in the middle and upper part of the transmission tower. This type of reinforcement form cannot strengthen the entire tower, and cannot effectively solve the problem of weak intervals of the transmission tower, and it is difficult to meet the requirements of the transmission tower for reinforcement methods. Summary of the invention

[0006] The object of the present invention is to address the deficiencies of the prior art and propose a device and method for strengthening and energy dissipation of transmission tower structures. Multiple assembled damping components are used for installation and combined reinforcement, aiming to improve the structural performance of transmission towers and enhance their integrity. The device is connected to multiple nodes at a certain height of the transmission tower through three types of reinforcement and energy dissipation components and three sets of connection devices, and assembled into a complete set of detachable and installable reinforcement systems for interval reinforcement of the transmission tower, achieving a good improvement in the performance of the transmission tower and avoiding tower collapse accidents.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a device for strengthening and energy dissipation of transmission tower structures, including a first component, a second component, a third component, a first connection device, a second connection device, and a third connection device;

[0009] The first component is a single-angle steel. Every two first components are connected into a long-angle steel through a second connection device, and four long-angle steels are connected through four first connection devices to form a rectangular frame; a third connection device is arranged at the center position of the rectangular frame. The third connection device is a wire reel type connecting piece, including a thick disc and thin discs at the upper and lower ends of the thick disc. Four grooves are evenly opened along the circumferential direction on the side surface of the thick disc, and a third component extending outward is inserted into each groove. The other end of each third component is connected to the corresponding second connection device to form a "field" shaped frame; the upper and lower thin discs are connected by multiple vertically arranged bolts. The second component includes four, all of which are V-shaped parts. The four V-shaped parts are located within the "field" shaped frame. One V-shaped part corresponds to one third component. The corner part of the V-shaped part bypasses the bolts of the upper and lower thin discs, and the two ends of the V-shaped angle steel are fixed on two different second connection devices.

[0010] As a further technical solution, the thick disc component is filled with viscous damping fluid.

[0011] As a further technical solution, multiple bolt holes are opened on the same side at both ends of the first component. One end is connected to the first connection device, and the other end is connected to the second connection device.

[0012] As a further technical solution, the second component includes a first sub-component and a second sub-component. The first sub-component is an angle steel with a certain bend angle. Multiple bolt holes are opened on the same side at both ends of the angle steel. The second sub-component is a quarter-circular steel plate with bolt holes at both ends. The steel plate is made of mild steel. The two arc steel plates are connected to the two ends of the angle steel through bolts.

[0013] As a further technical solution, the third component is a single-angle steel, and rectangular steel is welded at both ends of the angle steel.

[0014] As a further technical solution, the first connecting device is composed of a third sub-component and a fourth sub-component. Both the third sub-component and the fourth sub-component are of V-shaped structures. The third sub-component is placed outside the existing gusset plate, and the fourth sub-component is placed inside the existing gusset plate. Connecting holes are provided at the ends of both the third sub-component and the fourth sub-component, and stiffening ribs are welded inside the fourth sub-component.

[0015] As a further technical solution, the connecting holes at both ends of the third sub-component and the fourth sub-component are connected to the first member through connecting pieces.

[0016] As a further technical solution, the stiffening ribs are connected to the end of the second member.

[0017] As a further technical solution, the second connecting device includes a fifth sub-component, a sixth sub-component, and a seventh sub-component; the fifth sub-component is a grooved steel, and small steel plates with bolt holes are welded at both ends; the sixth sub-component is a cube-shaped grooved steel, which is fixedly connected to the fifth sub-component, and the cube-shaped grooved steel has openings facing outwards and is filled with damping fluid inside, and the sixth sub-component is connected to the third member; the seventh sub-component is an energy-dissipating damping rod, which is located inside the fifth sub-component and is connected to the first member.

[0018] Second, the present invention provides a device for strengthening and energy dissipation of a transmission tower structure, specifically as follows:

[0019] First, perform finite element simulation on the old transmission tower, find out the weak positions of the structure by applying loads, and perform vulnerability analysis on the structure to find the most unfavorable intervals;

[0020] Then, simulate the load-bearing performance improvement ability of the transmission tower after adding diaphragms at different positions in the most unfavorable intervals through finite element software, and find the most effective reinforcement positions;

[0021] According to the results of the finite element simulation, at the most effective reinforcement positions, first install the first connecting device at the node to be reinforced, install the first member on this basis, and install the second connecting device at the other end of the first member; at the same time, install the third member and the third connecting device to form a "field"-shaped reinforcement structure;

[0022] Connect the two ends of the second member to the stiffening ribs of the two first connecting devices, and bypass the two bolt rods of the third connecting device at the corner part to form the entire reinforcement and energy dissipation device.

[0023] The working principle of the present invention is as follows:

[0024] First, a finite element simulation is performed on the old transmission tower, and the weak positions of the structure are found by applying loads, and the vulnerability analysis of the structure is performed to find the most unfavorable interval. Then, the finite element software is used to simulate the load-bearing performance improvement capacity of the transmission tower after adding cross-partitions at different positions in the most unfavorable interval, and the most effective reinforcement position is found. According to the results of the finite element simulation, at the most effective reinforcement position, all reinforcement components are combined and connected in the order of assembly and connected to the main material or node at the same height position of the tower body, thereby forming an integrated reinforcement energy dissipation device. The present invention strengthens the integrity of the transmission tower by reinforcing the transmission tower interval to improve the structural performance of the transmission tower.

[0025] The beneficial effects of the present invention are:

[0026] (1) The main components use angle steel components as the main load-bearing structure of the device, which has excellent performance and is easy to install. It is assembled by three types of reinforced energy-absorbing components (first component, second component and third component) and three sets of connection devices (first connection device, second connection device and third connection device), so that the reinforcement device has good integrity and variability, which can significantly enhance the bearing performance and overall stability of the weak section of the transmission tower, and eliminate the influence of local vibration mode, further improve the ability of the transmission tower to resist external loads (earthquake action, wind load, ice load), and avoid the occurrence of tower collapse accidents;

[0027] (2) The reinforcement components are combined and connected in the order of assembly and connected with the main materials or nodes at the same height of the tower body to form an overall reinforcement energy dissipation device, so that the performance of the most unfavorable section of the transmission tower is effectively improved, further improving the integrity and stability of the transmission tower structure;

[0028] (3) The connection between the reinforcement device and the main material components or nodes of the transmission tower are all connected by bolts and clamps. For different transmission tower structures, only the first connecting piece needs to be changed to meet the reinforcement of any structure. There is no need for drilling, welding and disassembly at the construction site. The installation and disassembly are simple and convenient, and the performance is highly improved.

[0029] (4) There are various forms of energy-absorbing components in the connection device. The damping rods and damping fluid can absorb most of the energy when the transmission tower segment is deformed, so as to reduce the deformation of the transmission tower itself. When the energy-absorbing components are destroyed, the remaining components can still form a reinforcement device to continue to reinforce the transmission tower segment.

[0030] (4) The present invention has a simple structure, high flexibility, and is easy to replace. It can effectively improve the overall stability of the transmission tower and can be applied to the overall reinforcement of various transmission tower structures. It can basically meet the reinforcement and transformation requirements of weak sections of existing transmission towers and has good social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0032] Figure 1 An overall schematic diagram of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0033] Figure 2 A schematic diagram of a second component of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0034] Figure 3 A schematic diagram of a third component of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0035] FIG. 4 ( a ) and FIG. 4 ( b ) are schematic plan views of a third connection device of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0036] Figure 5 A three-dimensional schematic diagram of a third connecting device of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0037] Figure 6 A three-dimensional front view schematic diagram of a first connecting device of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0038] Figure 7 A three-dimensional side view schematic diagram of a first connecting device of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0039] Figure 8 A schematic diagram of a second connection device of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0040] Fig. 9 A schematic diagram of an energy dissipation damping rod of a transmission tower structure reinforcement and energy dissipation device provided by the present invention.

[0041] In the figure: 1 first component, 2 second component, 3 third component, 4 first connecting device, 5 second connecting device, 6 third connecting device, 7 reinforced node, 8 bolt hole, 9 damping liquid cavity, 10 rectangular groove, 11 bolt hole, 12 long limb, 13 short limb, 14 transmission tower oblique material, 15 transmission tower node, 16 stiffening rib, 17 cube groove steel, 18 fifth sub-component, 19 first sub-component, 20 second sub-component, 21 energy dissipation damping rod. DETAILED DESCRIPTION

[0042] It should be noted that the following detailed description is illustrative and aims to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, combinations, and / or their combinations.

[0044] For the convenience of description, if the words "upper", "lower", "left", and "right" appear in the present invention, they only indicate the same directions as the upper, lower, left, and right of the accompanying drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0045] Term explanation section: Terms such as "installation", "connection", "connection", and "fixation" in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The following describes the embodiments of the present invention in detail in combination with the technical solutions and the accompanying drawings.

[0047] This embodiment discloses a device for strengthening and energy dissipation of a transmission tower structure, including a first member, a second member, a third member, a first connection device, a second connection device, and a third connection device; the first and second connection devices are connected to the first member to form the outermost square reinforcement device; one end of the third member is embedded in the second connection device, and the other end is embedded in the third connection device to form a "field" - shaped reinforcement form together; both ends of the second reinforcement member are bolt - connected to the first connection device, and the arc - shaped side is embedded in the third connection device. The three reinforcement and energy - dissipation members and the three sets of connection devices are sequentially assembled and fixedly connected to the gusset plate or the main material angle steel at the same horizontal height position of the transmission tower to be reinforced, so as to form a geometrically invariant device for strengthening and energy dissipation.

[0048] A transmission tower structure reinforcement and energy dissipation device provided by an embodiment of the present invention includes three types of reinforcement and energy dissipation components and three sets of connection devices, namely a first component 1, a second component 2, a third component 3, a first connection device 4, a second connection device 5, and a third connection device 6; each type of energy dissipation component and connection device is divided into several sub-components, which can be obtained after processing angle steel or common steel, and are connected into an integral body through bolt fastening or groove embedding.

[0049] Specifically, the first component 1 is a single angle steel with multiple bolt holes opened on the same side at both ends; one set of the transmission tower structure reinforcement and energy dissipation device includes eight first components 1, and every two first components 1 are connected by a second connection device 5 to form a long angle steel; the four long angle steels are connected by four first connection devices to form a rectangular frame.

[0050] As Figure 2 shown, there are also four second components 2. Each second component includes two first sub-components 19 and a second sub-component 20. The two first sub-components 19 and the second sub-component 20 are connected by bolts through bolt holes 8 to form a second component 2 in a V shape; the two first sub-components are placed at a ninety-degree angle but are not directly connected, are tangent to the arc of the second sub-component, and are connected by bolts. A fixture can be added at the connection for fastening; the second sub-component 20 bypasses two of the bolts of the third connection device 6 described below.

[0051] As Figure 3 shown, the third component 3 is a single angle steel with rectangular steel welded at both ends of the angle steel. There are also four third components 3. One end is inserted into the rectangular groove 10 of the third connection device 6, and the other end is connected to the square groove steel 17 of the second connection device 5. The four third components 3 are distributed in the front, rear, left, and right, forming a "field" - shaped frame with the above - mentioned rectangular frame.

[0052] As Figure 6 、 Figure 7 shown, the above - mentioned first connection device 4 is composed of a third sub - component and a fourth sub - component. Both the third sub - component and the fourth sub - component are in a V - shaped structure. Among them, the third sub - component includes two long steel limbs 12 in a V shape. One end of the two long steel limbs 12 is connected to each other through a short limb 13, and bolt holes are opened at both ends of the two long steel limbs 12. The third sub - component is placed on both outer sides of the existing gusset plate 15; the fourth sub - component also includes two long steel limbs 12 in a V shape. The two long steel limbs 12 are welded together or integrally formed into a V shape, and a vertical stiffening rib 16 is welded inside the included angle formed by the two long steel limbs 12. Bolt holes are opened on the two long steel limbs 12, the short limb 13, and the stiffening rib 16; the bolt holes on the long steel limbs 12 of the third sub - component correspond to the bolt holes on the long steel limbs 12 of the fourth sub - component. Since the connection positions do not completely fit, there is still a gap between the bolt holes for placing the first component 1.

[0053] Furthermore, the long limb of the above-mentioned third sub-component is attached to the outer side of the angle steel to be strengthened, a rubber gasket is placed at the joint, and the short limb is located on the outer side of the structure, and high-strength bolts are used for fastening; the fourth sub-component is attached to the inner side of the angle steel to be strengthened or the joint, and a rubber gasket is placed on the joint surface to reduce misalignment and sliding.

[0054] As Figure 8 shown, the second connecting device 5 includes a fifth sub-component 18, a sixth sub-component and a seventh sub-component; the fifth sub-component 18 is a grooved steel, and small steel plates with bolt holes are welded at both ends; the sixth sub-component is a cubic grooved steel 17, the cubic grooved steel 17 is fixedly connected to the fifth sub-component 18, and the cubic grooved steel 17 has holes facing outwards and damping liquid is placed inside, which is convenient for connecting with the third component 3; the seventh sub-component is an energy-dissipating damping rod 21, which is connected to the first component 1.

[0055] The inside of the second connecting device needs to be polished rough to increase the frictional resistance, and some protrusions are welded inside so that the energy-dissipating damping rod 21 inside is not easy to slide out.

[0056] As shown in Fig. 4(a), Fig. 4(b), Figure 5 shown, the third connecting device 6 is a wire pulley type connecting piece, including two thin discs and a thick disc, one thin disc is located on the top surface of the thick disc, and the other thin disc is located on the bottom surface of the thick disc; bolt holes 11 are opened at the edges of the two thin disc components, and four rectangular grooves 10 are opened on the side surface of the thick disc component placed in the middle, and the four rectangular grooves 10 are arranged along the circumferential direction of the thick disc; and the thick disc is a cavity structure, and a damping liquid cavity 9 is formed inside, and the damping liquid cavity 9 is filled with viscous damping liquid, and the rectangular grooves 10 are used for inserting the third component; the upper and lower thin discs are connected by eight bolts, and the eight bolts are evenly arranged in the front, back, left and right four directions, the two bolts in the front correspond to a second component 2, the two bolts in the back correspond to a second component 2, the two bolts in the left correspond to a second component 2, the two bolts in the back correspond to a second component 2, and the four second components 2 are distributed in the front, back, left and right in a "field" shaped frame.

[0057] Furthermore, the bolt holes of the third connecting device should be drilled as far out as possible to ensure the mobility of the mild steel and realize its energy dissipation, and the damping liquid inside the third connecting device cannot be filled up.

[0058] The above three components and connecting devices are combined together to form a frame structure, and the optimal form is a "field" shaped and diagonal bracing frame structure.

[0059] For a transmission tower that requires structural reinforcement, first connect each sub-component. First, fasten the short limb 13 of the first connecting device 4 with bolts after fitting a rubber gasket, and connect the long limb to the L-shaped angle steel. On this basis, install the first component 1, and install the second connecting device 5 at the other end of the first component 1; at the same time, install the third component 3 and the third connecting device 6 to form a "field" - shaped reinforcement structure; then connect one end of the second component 2 to the stiffening rib 16 of the L-shaped angle steel, and embed the arc-shaped mild steel on the other side into the two bolt rods of the third connecting device 6 to form the entire reinforcement energy dissipation device.

[0060] For the transmission tower section with existing longitudinal and transverse steel materials, the first component 1 can be not installed, and the other components can be installed in sequence to form a complete reinforcement device.

[0061] In this reinforcement device, each set of reinforcement components uses angle steel as the basic material. The three components can also use steel pipes or other steel materials, and the connection method remains unchanged. Therefore, this device can not only connect steel pipes but also connect equal-angle steel. So this reinforcement device is preferably applicable to angle steel towers, and at the same time can also meet the reinforcement treatment of steel pipe towers or other steel structures, with good universality.

[0062] Rubber gaskets are placed at the joints of the above-mentioned first component and second component, and the surfaces are coated with epoxy resin anti-corrosion paint for anti-corrosion treatment.

[0063] Furthermore, for the transmission tower section with existing longitudinal and transverse steel materials, the first component can be not installed, and the other components can be installed in sequence to form a complete reinforcement device.

[0064] The installation method of the above-mentioned transmission tower structure reinforcement and energy dissipation device is as follows:

[0065] For a certain transmission tower structure, it is necessary to carry out finite element simulation on it, and find the most unfavorable section or weak section by applying adverse conditions such as seismic action and wind load; then apply this reinforcement device to the finite element model for simulation verification to obtain the most effective reinforcement position;

[0066] According to the finite element simulation results at the most effective reinforcement position, first fasten the short limb of the first connecting device with bolts after fitting a rubber gasket, and connect the long limb to the L-shaped angle steel. On this basis, install the first component, and install the second connecting device at the other end of the first component; at the same time, install the third component and the third connecting device to form a "field" - shaped reinforcement structure;

[0067] Connect one end of the second component to the stiffening rib of the L-shaped angle steel, and embed the arc-shaped mild steel on the other side into the two bolt rods of the third connecting device to form the entire reinforcement energy dissipation device;

[0068] The above implementation scheme of this patent is not intended to limit the scope of protection of the invention, and the implementation scheme of this patent is not limited to this. All other forms of modifications, replacements or changes made to the above structure of this patent based on the above content of this patent, in accordance with the common technical knowledge and customary means in this field, without departing from the above basic technical ideas of this patent, should fall within the scope of protection of this patent.

Claims

1. A transmission tower structure reinforcement and energy dissipation device, characterized in that: It includes a first member, a second member, a third member, a first connecting device, a second connecting device, and a third connecting device; The first member is a single-angle steel. Every two first members are connected into a long angle steel through the second connecting device. Four long angle steels are connected through four first connecting devices to form a rectangular frame. A third connecting device is arranged at the central position of the rectangular frame. The third connecting device is a wire pulley type connecting piece, including a thick disc and thin discs at the upper and lower ends of the thick disc. Four grooves are evenly opened on the side surface of the thick disc along its circumferential direction. A third member extending outward is inserted into each groove. The third member is a single-angle steel, and rectangular steel is welded at both ends of the angle steel. The other end of each third member is connected to the second connecting device at the corresponding position to form a "field"-shaped frame. The upper and lower thin discs are connected by multiple vertically arranged bolts. The second member includes four, all of which are V-shaped parts. The four V-shaped parts are located within the "field"-shaped frame. One V-shaped part corresponds to one third member. The corner part of the V-shaped part bypasses the bolts of the upper and lower thin discs, and both ends of the V-shaped angle steel are fixed on two different second connecting devices; The second member includes a first sub-component and a second sub-component. The first sub-component is an angle steel with a certain bending angle. Multiple bolt holes are opened on the same side at both ends of the angle steel. The second sub-component is a quarter-circular arc steel plate with bolt holes at both ends. The steel plate is made of mild steel. The two arc steel plates are connected to both ends of the angle steel through bolts; The first connecting device is composed of a third sub-component and a fourth sub-component. Both the third sub-component and the fourth sub-component are V-shaped structures. The third sub-component is placed outside the existing gusset plate, and the fourth sub-component is placed inside the existing gusset plate. Connecting holes are provided at the ends of the third sub-component and the fourth sub-component, and stiffening ribs are welded inside the fourth sub-component; The second connecting device includes a fifth sub-component, a sixth sub-component, and a seventh sub-component; The fifth sub-component is a grooved steel, and small steel plates with bolt holes are welded at both ends; The sixth sub-component is a cube-shaped grooved steel. The cube-shaped grooved steel is fixedly connected to the fifth sub-component, and the cube-shaped grooved steel has holes facing outward and is filled with damping liquid inside. The sixth sub-component is connected to the third member; The seventh sub-component is an energy-dissipating damping rod, located inside the fifth sub-component and connected to the first member.

2. The transmission tower structure reinforcement and energy dissipation device according to claim 1, characterized in that: The thick disc member is filled with viscous damping liquid.

3. The transmission tower structure reinforcement and energy dissipation device according to claim 1, wherein Multiple bolt holes are opened on the same side at both ends of the first member. One end is connected to the first connecting device, and the other end is connected to the second connecting device.

4. The transmission tower structure reinforcement and energy dissipation device according to claim 1, characterized in that: The connecting holes at both ends of the third sub-component and the fourth sub-component are both connected to the first member through connecting pieces.

5. The transmission tower structure reinforcement and energy dissipation device according to claim 1, characterized in that: The stiffening rib is connected to the end of the second member.

6. A method for reinforcing a transmission tower using the transmission tower structure reinforcement and energy dissipation device according to any one of claims 1 to 5, characterized in that: As follows: First, perform finite element simulation on the old transmission tower, find the weak positions of the structure by applying loads, and perform vulnerability analysis on the structure to find the most unfavorable interval; Then, use finite element software to simulate the load-bearing performance improvement ability of the transmission tower after adding cross diaphragms at different positions in the most unfavorable interval, and find the most effective reinforcement position; According to the results of finite element simulation, at the most effective reinforcement position, first install the first connecting device at the node to be reinforced. On this basis, install the first component and install the second connecting device at the other end of the first component; at the same time, install the third component and the third connecting device to form a "field"-shaped reinforcement structure; Connect the two ends of the second component to the stiffeners of the two first connecting devices, and bypass the corner part around the two bolt rods of the third connecting device to form the entire reinforcement energy dissipation device.

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