Power transmission tower component and node combined reinforcing device and power transmission tower

Abstract

The invention discloses a power transmission tower component and joint combined reinforcing device and a power transmission tower. The power transmission tower component and joint combined reinforcing device comprises a middle part, side parts, pre-welding plate parts and joint connecting steel bars. The middle component is located on the outer side of the corner of the reinforced angle steel of the power transmission tower, and the pre-welding plate component is located on the inner side of the reinforced angle steel. The side parts are located at the edges of the outer sides of two wing plates of the reinforced angle steel, the middle part is connected with the side parts, and the side parts are connected with the pre-welding plate part; a plurality of pre-welding plate components are arranged on the inner side of the reinforced angle steel in the length direction of the reinforced angle steel and connected through joint connecting steel bars. The problems that an existing power transmission tower reinforcing measure is limited in lifting effect and difficult to construct are effectively solved.

Description

Technical Field

[0001] The invention relates to the field of civil engineering steel structures, and in particular to a method and device for jointly reinforcing transmission tower components and nodes. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The transmission tower structure is a tall structure with a large aspect ratio. It is particularly sensitive to the effects of wind and often collapses due to the effects of wind. High-voltage transmission lines are important lifeline projects. Once a tower collapse accident occurs, it will cause a large-scale power supply interruption, causing significant losses to the country's economic construction and the safety of life and property. In the current high-voltage transmission lines, many tower structures are designed according to the old structural design specifications, and after years of operation, the wind resistance limit bearing capacity of the tower structure has decreased. With the continuous development of power grid construction, these in-service towers need to be maintained.

[0004] In order to ensure the normal operation and safe transmission of high-voltage transmission lines and improve the wind resistance of high-voltage transmission lines, it is an economical and effective method to reinforce and transform the existing towers to avoid the adverse power supply and economic effects caused by line reconstruction.

[0005] The current reinforcement method mainly uses clamps, bolts or welding to add auxiliary main materials to restrain the deformation of the original structure. The main problems are: when using traditional clamps to connect, due to the influence of the width of the original diagonal materials and the original cross-partition materials, after adding auxiliary main materials, they cannot be closely attached to the original main materials, the bearing capacity of the tower is limited, and the nodes cannot be strengthened; when using traditional bolts to connect, holes need to be drilled on the built tower, and the operation is done at high altitude, so there are problems such as inaccurate drilling and large hole expansion, which greatly affects the reinforcement effect; when using traditional welding to connect, due to the stress state of the tower itself, welding will produce high temperature effects on the main material components, causing the steel in the welding area to deform, thereby changing the stress state, increasing the brittleness of the main material, and ultimately affecting the original structure and the reinforcement effect. Summary of the invention

[0006] In view of this, the present invention proposes a method and device for jointly reinforcing transmission tower components and nodes, aiming to effectively solve the problems of limited improvement effect and construction difficulty of existing transmission tower reinforcement measures.

[0007] The technical solution adopted by the present invention is as follows:

[0008] In a first aspect, the present invention provides a transmission tower component and node joint reinforcement device, including a middle component, an edge component, a pre-welded plate component and node connection steel bars;

[0009] The middle component is located on the outside of the corner of the reinforced angle steel of the transmission tower, and the pre-welded plate component is located on the inside of the reinforced angle steel; the side component is located on the edge position of the outside of the two wing plates of the reinforced angle steel, the middle component is connected to the side component, and the side component is connected to the pre-welded plate component; and along the length direction of the reinforced angle steel, a plurality of pre-welded plate components are arranged on the inside thereof, and adjacent pre-welded plate components are connected by node connecting steel bars.

[0010] As a further technical solution, the pre-welded plate components include prefabricated angle steel, pre-welded plate, pre-welded steel bars and pre-welded foot plate; the pre-welded plate is welded to one end of the prefabricated angle steel, a steel bar connection hole is provided on the pre-welded plate, and bolt connection holes are reserved at the edge positions of the two sides of the prefabricated angle steel; along the length direction of the prefabricated angle steel, a number of pre-welded steel bars are welded in sequence between the two side surfaces of the prefabricated angle steel; along the length direction of the prefabricated angle steel, a pre-welded foot plate is welded on the inner side of the corner of the prefabricated angle steel.

[0011] As a further technical solution, the bolt connection hole is connected to the side component by bolts.

[0012] As a further technical solution, the steel bar connection hole is connected to another pre-welded plate component through a node connection steel bar.

[0013] As a further technical solution, the middle component includes an angle steel, and threaded sleeves are welded at the edge positions of the two sides of the angle steel. The threaded sleeve and the angle steel form a whole, and the threaded sleeve is connected to the threaded side of the connecting steel bar.

[0014] As a further technical solution, the side component is a steel plate with reserved steel bar holes and reserved bolt connection holes.

[0015] As a further technical solution, the reserved steel bar hole is connected to the non-threaded side of the connecting steel bar, and the gap is filled with sealant.

[0016] As a further technical solution, the reserved bolt connection holes are connected to the pre-welded plate components through bolts.

[0017] As a further technical solution, the adjacent pre-welded plate components are connected via a plurality of node connecting steel bars.

[0018] As a further technical solution, both ends of the node connecting steel bars are provided with threads.

[0019] In a second aspect, the present invention further provides a transmission tower, which includes the transmission tower components and node joint reinforcement device described above.

[0020] The method and device for jointly reinforcing transmission tower components and nodes provided by the present invention make the reinforcing components and the reinforced angle steel bear force together by means of mutually connected reinforcing components arranged on the reinforced angle steel, thereby improving the bearing capacity of the reinforced angle steel and thus improving the strength of the transmission tower, avoiding instability and deformation of the reinforced angle steel, and ensuring the reinforcement of the reinforced angle steel by the reinforcing components through connection with connecting materials, without affecting the performance of the transmission tower.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The present invention can reinforce the transmission tower under live operation, and the construction operation is convenient. There is no need to drill holes, weld or disassemble the transmission tower, which avoids damage to the performance of the transmission tower, especially the strength of the reinforced angle steel, caused by drilling and welding, and prevents accidents such as collapse of the reinforced angle steel. The bolt connection between the side component and the pre-welded plate component makes the two components closely contact with the reinforced angle steel 1 and connected as a whole, thereby restraining the deformation of the two wing plates of the reinforced angle steel. The connection between the middle component and the side component makes the middle component closely contact with the reinforced angle steel and restrains the deformation of the foot of the reinforced angle steel. The node connection nut and the node connection steel bar connect the two pre-welded plate components at the node as a whole. After the middle component, the side component and the pre-welded plate component are connected in the above-mentioned connection mode, a spatial structure is formed and closely contacted with the reinforced angle steel to restrain its deformation.

[0023] 2. The pre-welded steel bars and pre-welded foot plates in the pre-welded plate components of the present invention can make the pre-welded plate components as a whole triangular, thereby greatly improving the bearing capacity.

[0024] 3. The present invention avoids high-altitude welding and reduces the difficulty of operators performing high-altitude operations on transmission towers.

[0025] 4. The reinforcement form of the transmission tower components and node joint reinforcement device provided by the present invention is assembled reinforcement. During the construction process, there is no need to shut down the power supply, which improves the reliability of power supply. At the same time, it avoids the drilling, welding or disassembly in the prior art, and avoids the damage to the performance of the transmission tower, especially the strength of the reinforced angle steel, caused by drilling and welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0027] Figure 1 This is an exploded view showing the overall structure of Embodiment 1 of the present invention;

[0028] Figure 2 , are three views of the edge component of Example 1 of the present invention, wherein (a) is a side view, (b) is a front view, and (c) is a top view;

[0029] Figure 3 The three views of the components in Example 1 of the present invention, wherein (a) is a side view, (b) is a front view, and (c) is a top view;

[0030] Figure 4 The three views of the pre-welded component of Example 1 of the present invention, wherein (a) is a side view, (b) is a front view, and (c) is a top view;

[0031] Figure 5 , Figure 6 This is a rendering of Embodiment 1 of the present invention;

[0032] Figure 7 Schematic diagram of the reinforcement parts of the transmission tower:

[0033] Among them: 1. Reinforced angle steel, 2. Middle component, 2-1. Threaded sleeve, 3. Side component, 3-1. Reserved steel bar hole, 3-2. Reserved bolt connection hole, 4. Pre-welded plate component, 4-1. Pre-welded plate of connecting node, 4-2 Reserved steel bar connection hole, 4-3. Pre-welded steel bar, 4-4. Pre-welded foot plate, 4-5. Reserved bolt connection hole, 5. Connecting nut, 6. Connecting screw, 7. Connecting steel bar, 8. Node connecting nut, 9. Node connecting steel bar. DETAILED DESCRIPTION

[0034] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0035] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0037] As introduced in the background, there is still no non-high altitude welding reinforcement device that can effectively reinforce rods and nodes at the same time. In view of the above problem, the present invention proposes to provide a non-high altitude welding reinforcement device that can effectively reinforce rods and nodes at the same time.

[0038] In a typical implementation example 1 of the present application, Figure 1-Figure 4 As shown, this embodiment provides a transmission tower component and node joint reinforcement device, including a middle component 2, a side component 3, a pre-welded plate component 4, a connecting nut 5, a connecting screw 6, a connecting steel bar 7, a node connecting nut 8, a node connecting steel bar 9 and connection materials including a caulking adhesive, etc.;

[0039] Among them, the middle component 2 is located on the outside of the corner of the reinforced angle steel of the transmission tower, and the pre-welded plate component 4 is located on the inside of the reinforced angle steel; the side component 3 is located at the edge position of the outside of the two wing plates of the reinforced angle steel (both edge positions are set), wherein the component 2 is connected to the two side components 3 respectively, and the two side components 3 are connected to the pre-welded plate component 4; and along the length direction of the reinforced angle steel, a plurality of pre-welded plate components 4 are arranged on the inside thereof, and adjacent pre-welded plate components 4 are connected by screws; wherein the bolt connection between the side component 3 and the pre-welded plate component 4 makes The two components are in close contact with the reinforced angle steel 1 and connected as a whole, which constrains the deformation of the two wing plates of the reinforced angle steel 1. The connection between the middle component 2 and the side component 3 makes the middle component 2 in close contact with the reinforced angle steel 1 and constrains the deformation of the foot of the reinforced angle steel 1. The node connection nut 8 and the node connection steel bar 9 connect the two pre-welded plate components 4 at the node as a whole. After the middle component 2, the side component 3 and the pre-welded plate component 4 are connected in the above-mentioned connection method, a spatial structure will be formed and they will be in close contact with the reinforced angle steel 1 and constrain its deformation.

[0040] Specifically, the middle component 2 in this embodiment is a long strip of angle steel, and a threaded sleeve 2-1 is welded on one long side of the angle steel. The angle steel and the threaded sleeve 2-1 are welded to form a whole, and the threaded sleeve 2-1 is connected to the threaded side of the connecting steel bar 7.

[0041] Specifically, if Figure 2 As shown, the side component 3 of the present invention is made of steel, and is provided with a reserved steel bar hole 3-1 and a reserved bolt connection hole 3-2. The aperture, quantity and position of the reserved steel bar hole 3-1 and the reserved bolt connection hole 3-2 can be adjusted according to the actual reinforcement requirements of the reinforced angle steel. The reserved steel bar hole 3-1 is connected to the non-threaded side of the connecting steel bar 7, and the gap is filled with sealant. The reserved bolt connection hole 3-2 is connected to the connecting nut 5 and the connecting screw 6.

[0042] Specifically, if Figure 4As shown, the pre-welded plate component 4 adopts pre-fabricated angle steel 4-6 to be welded with the pre-welded plate 4-1, pre-welded steel bar 4-3 and pre-welded foot plate 4-4 of the connection node, and reserved steel bar connection hole 4-2 and reserved bolt connection hole 4-5 are punched, the pre-welded plate 4-1 is welded to one end of the pre-fabricated angle steel 4-6, the pre-welded plate 4-1 is provided with a steel bar connection hole 4-2, and reserved bolt connection holes 4-5 are provided at the two side edge positions of the pre-fabricated angle steel 4-6; along the length direction of the pre-fabricated angle steel 4-6, a plurality of pre-welded steel bars 4-3 are welded in sequence between the two side surfaces of the pre-fabricated angle steel 4-6; along the length direction of the pre-fabricated angle steel 4-6, a pre-welded foot plate 4-4 is welded on the inner side of the corner of the pre-fabricated angle steel 4-6; the pre-welded steel bar 4-3 and the pre-welded foot plate 4-4 can make the pre-welded plate as a whole triangular, which greatly improves the bearing capacity.

[0043] Furthermore, the shape and thickness of the pre-welded plate 4-1 of the connection node and the position and diameter of the reserved steel bar connection hole 4-2 thereon can be adjusted according to the actual reinforcement requirements of the reinforced angle steel. The pre-welded plate 4-1 is a rectangle as a whole, and a reinforcement rod is welded on its inner side.

[0044] Furthermore, the diameter, number and welding position of the pre-welded steel bars 4-3 can be adjusted according to the actual reinforcement requirements of the reinforced angle steel.

[0045] Furthermore, the plate thickness and welding position of the pre-welded foot plate 4-4 can be adjusted according to the actual reinforcement requirements of the reinforced angle steel.

[0046] Furthermore, the hole diameter, number and position of the reserved bolt connection holes 4-5 can be adjusted according to the actual reinforcement requirements of the reinforced angle steel.

[0047] Specifically, the types of the connecting nut 5 and the connecting screw rod 6 can be adjusted according to the actual reinforcement requirements of the reinforced angle steel.

[0048] Specifically, the connecting steel bar 7 is made of steel bars with threads pressed on one side, and the diameter and quantity of the connecting steel bars can be adjusted according to the actual reinforcement requirements of the reinforced angle steel.

[0049] Specifically, both ends of the node connection steel bar 9 are provided with threads, one end of which is connected to one of the pre-welded plate parts 4 through a nut, and the other end is connected to another pre-welded plate part 4 through a nut. And adjacent pre-welded plate parts 4 are connected by at least two node connection steel bars 9.

[0050] It is obvious that, further, all components of the device are connected by bolt connection, and there is no need for welding or other difficult construction work at high altitudes. The structure is simple, the operation is convenient, and the difficulty of high-altitude operations is reduced.

[0051] The connection method of the above device on the transmission tower is as follows:

[0052] For the component reinforcement part, first fix the connecting steel bar 7 on the screw hole of the middle part 2, then clamp the whole formed by the middle part 2 and the connecting steel bar 7 at the outer corner of the reinforced angle steel 1, and after fitting, connect the side part 3 to the middle part 2 through sealant, and then connect the pre-welded plate part 4 to the side part 3 through bolts. At this point, the side part 3, the middle part 2 and the pre-welded plate part 4 form a whole and constrain the reinforced angle steel 1; for the node reinforcement part, after the connection of the components of the component reinforcement part is completed, the inner node connecting nut 8 is inserted into the node connecting steel bar 9 in advance, and then the node connecting steel bar 9 is passed through the reserved holes on the pre-welded plate part 4 and placed in the corresponding position, and fixed to the pre-welded plate part 4 through the node connecting nuts 8 on both sides. The components form a spatial structure to constrain the reinforced angle steel 1, and the installation is completed.

[0053] In summary, the transmission tower component and node joint reinforcement device provided in this embodiment can simultaneously reinforce the nodes and non-node parts. The non-node parts are connected by the middle part 2, the side part 3 and the pre-welded plate part 4 to form a spatial structure and are clamped with the reinforced angle steel 1 to avoid the instability and deformation of the non-node parts of the reinforced angle steel 1; the node parts form a spatial structure with the node connecting steel bars 9 through the middle part 2 and are clamped with the reinforced angle steel to avoid the instability and deformation of the node parts of the reinforced angle steel 1; at the same time, the side parts and the pre-welded plate parts are connected by bolts, the middle parts and the side parts are connected by a threaded sleeve on one side, and the holes are sealed with sealant on one side with reserved holes, and the nodes are connected by bolts. All of the above connection methods are non-welding and simple to operate, which is convenient for high-altitude construction. During construction, there is no need to shut down the reinforced transmission tower, thereby ensuring power supply reliability; at the same time, the punching, disassembly and welding of the reinforced angle steel 1 are avoided, thereby avoiding damage to the material strength.

[0054] See also Figure 5 After connecting the various components with the reinforced angle steel, the formed structure is the effect diagram of Example 1 of the present invention.

[0055] This embodiment also provides a transmission tower, and a transmission tower component and node joint reinforcement device is arranged at the component and node position of the transmission tower, see Figure 6 , which are example reinforcement locations of a transmission tower and the corresponding reinforcement effect diagrams.

[0056] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A transmission tower component and node joint reinforcement device, characterized in that: It includes middle parts, side parts, pre-welded plate parts and node connection steel bars; The middle component is located on the outside of the corner of the reinforced angle steel of the transmission tower, and the pre-welded plate component is located on the inside of the reinforced angle steel; the side component is located on the edge position of the outside of the two wing plates of the reinforced angle steel, the middle component is connected to the side component, and the side component is connected to the pre-welded plate component; and along the length direction of the reinforced angle steel, a plurality of pre-welded plate components are arranged on the inside thereof, and adjacent pre-welded plate components are connected by node connecting steel bars.

2. The transmission tower component and node joint reinforcement device according to claim 1, characterized in that: The pre-welded plate components include prefabricated angle steel, pre-welded plate, pre-welded steel bars and pre-welded foot plate; the pre-welded plate is welded to one end of the prefabricated angle steel, a steel bar connection hole is provided on the pre-welded plate, and bolt connection holes are reserved at the edge positions of the two sides of the prefabricated angle steel; along the length direction of the prefabricated angle steel, a number of pre-welded steel bars are welded in sequence between the two side surfaces of the prefabricated angle steel; along the length direction of the prefabricated angle steel, a pre-welded foot plate is welded on the inner side of the corner of the prefabricated angle steel.

3. The transmission tower component and node joint reinforcement device according to claim 2, characterized in that: The bolt connection holes are connected to the side parts through bolts.

4. The transmission tower component and node joint reinforcement device according to claim 2, characterized in that: The steel bar connection hole is connected to another pre-welded plate component through a node connection steel bar.

5. The transmission tower component and node joint reinforcement device according to claim 1, characterized in that: The middle component comprises an angle steel, and threaded sleeves are welded at the edge positions of two side edges of the angle steel.

6. The transmission tower component and node joint reinforcement device according to claim 1, characterized in that: The side component is a steel plate with reserved steel bar holes and reserved bolt connection holes.

7. The transmission tower component and node joint reinforcement device according to claim 6, characterized in that: The reserved steel bar hole is connected to the non-threaded side of the connecting steel bar, and the gap is filled with sealing glue.

8. The transmission tower component and node joint reinforcement device according to claim 6, characterized in that: The reserved bolt connection holes are connected to the pre-welded plate components through bolts.

9. The transmission tower component and node joint reinforcement device according to claim 1, characterized in that: The adjacent pre-welded plate components are connected via a plurality of node connecting steel bars.

10. A transmission tower, characterized in that: It comprises the transmission tower component and node joint reinforcement device as described in any one of claims 1-9.

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