CN218061714U - Node structure of power transmission tower - Google Patents
Node structure of power transmission tower Download PDFInfo
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- CN218061714U CN218061714U CN202220980174.9U CN202220980174U CN218061714U CN 218061714 U CN218061714 U CN 218061714U CN 202220980174 U CN202220980174 U CN 202220980174U CN 218061714 U CN218061714 U CN 218061714U
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Abstract
The utility model discloses a node structure of a power transmission tower, the truss girder comprises prefabricated multidirectional nodes, prefabricated truss rods and throat hoops; a plurality of axial slits are arranged on the circumference of each end of the multidirectional node, and concave-convex teeth distributed along the axial direction are also arranged on the inner surface of each end; the truss rod comprises a pipe shell made of fiber reinforced composite materials, and concave-convex teeth are arranged on the outer surface of the end part of the pipe shell along the axial direction; the end part of the truss rod is inserted into the corresponding end head of the multi-directional node, and concave-convex teeth on the inner surface of the end head are meshed with concave-convex teeth on the outer surface of the end part of the truss rod; the concave-convex teeth are mutually occluded and fastened through the hose clamp. The utility model has the advantages of light weight, high strength, easy equipment, corrosion-resistant, can be used to the power transmission tower construction in strong wind district, coastal area, high-altitude area, chemical industry district.
Description
Technical Field
The utility model relates to a node structure of power transmission tower.
Background
Power transmission towers are important electrical engineering structures. The traditional power transmission tower generally uses steel as a manufacturing material, and the problems of steel corrosion, node aging and the like exist in the operation stage. In recent years, the aging and collapse cases of power transmission towers are endless. The corrosion resistance problem of steel structures represented by power transmission towers has not been solved long-term and properly.
Meanwhile, with the increasing demand of high-altitude, large-span and offshore ocean power transmission lines, high call height and high bearing capacity become another construction demand under the background of new infrastructure. The method of improving the mechanical property of the power transmission tower only by increasing the section of the rod member inevitably leads to the increase of the quality of the power transmission tower, and further causes the improvement of the earthquake action of the power transmission tower, resulting in vicious circle.
Compared with the traditional steel, the composite material has the excellent characteristics of high specific strength, large specific stiffness and corrosion resistance, is rapidly developed and popularized in recent years, and is applied to a small range in the field of civil engineering. However, the problems of the assembled composite material structure, the composite material node and the like are not properly solved all the time, and the problems are more obvious in the field of electric power engineering.
Therefore, how to realize a prefabricated assembled power transmission tower with high mechanical property, light self weight, corrosion resistance and easy assembly is a key problem to be solved urgently.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the existing problems, the node structure of the power transmission tower is provided, the assembled connection of the nodes of the power transmission tower is realized, and the node structure has the characteristics of high bearing capacity, light dead weight, easiness in installation and corrosion resistance.
The technical scheme is as follows: a node structure of a power transmission tower comprises a prefabricated multidirectional node, a prefabricated truss rod and a hose clamp; a plurality of axial slits are arranged on the circumference of each end of the multidirectional node, and concave-convex teeth distributed along the axial direction are also arranged on the inner surface of each end; the truss rod comprises a pipe shell made of fiber reinforced composite materials, and concave-convex teeth are arranged on the outer surface of the end part of the pipe shell along the axial direction; the end part of the truss rod is inserted into the corresponding end head of the multidirectional node, and concave-convex teeth on the inner surface of the end head are meshed with concave-convex teeth on the outer surface of the end part of the truss rod; and the parts where the concave teeth and the convex teeth are meshed with each other are fastened through the hose clamp.
Furthermore, the multidirectional node is made of fiber reinforced composite materials or weather-resistant metals.
Further, the truss rod further comprises a metal pipe located on the inner layer of the pipe shell.
Furthermore, the truss rod further comprises metal pipes positioned on the inner sides of the pipe shells, and concrete is filled between the pipe shells on the outer sides of the metal pipes.
Has the advantages that: compared with the prior art, the utility model discloses following beneficial effect has:
1. the prefabricated aspect of component, the component only contains prefabricated node, prefabricated truss rod two types, and the component type is few, is convenient for realize the industrialization.
2. The composite truss rod has light self weight on the component assembly layer, so that the transportation and installation cost of the components can be effectively reduced, and the use of heavy-load machinery is reduced; the connection adopts the sequence of first inserting and then hooping, the construction efficiency is high, and the manpower requirement is less.
3. The use of performance aspect, FRP (Fiber Reinforced Polymer) makes the power transmission tower can utilize limited member cross-sectional dimension to obtain higher mechanical properties, and the structural corrosion resistance is showing and is improving, and the power response of power transmission tower under the earthquake action can effectively be reduced to lighter structure dead weight.
Drawings
Fig. 1 is a schematic view of a node before assembly in embodiment 1 of the present invention;
fig. 2 is a schematic cross-sectional view of a truss rod in embodiment 1 of the present invention;
fig. 3 is a schematic longitudinal section of the junction between the truss rod and the multi-directional node end in embodiment 1 of the present invention;
fig. 4 is an assembled schematic view of the node in embodiment 1 of the present invention;
fig. 5 is a schematic cross-sectional view of a truss rod in embodiment 2 of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1: as shown in fig. 1, the node structure of the transmission tower comprises a prefabricated multi-directional node 1, prefabricated truss rods 2 and a hose clamp 3.
In this embodiment, the multidirectional node 1 is a three-dimensional node, and the main body is made of a fiber-reinforced composite material or a weather-resistant metal. The circumference of each end of the multidirectional node 1 is provided with a plurality of axial slits 4, and the inner surface of each end is also provided with concave-convex teeth distributed along the axial direction.
The truss rod 2 comprises a pipe shell 9 made of fiber reinforced composite material and a metal pipe 10 positioned on the inner layer of the pipe shell, wherein the metal pipe is attached to the pipe shell, as shown in figure 2. The truss rod 2 prepared from FRP has the advantages of light dead weight and corrosion resistance, and the strength of the truss rod can meet the relevant standard requirements. Concave-convex teeth are arranged on the outer surface of the end part of the pipe shell along the axial direction.
The end part of each truss rod 2 is inserted into the corresponding end head of the multi-directional node 1, concave-convex teeth on the inner surface of the end head are meshed with concave-convex teeth on the outer surface of the end part of each truss rod 2, as shown in figure 3, and then the concave-convex teeth are fastened through the hose clamp 3 at the mutual meshing positions. Wherein, the width of the steel belt 8 of the throat hoop 3 needs to cover the length of the node end slot 4; one or more turbine screws 7 are arranged on the hose clamp 3, and high-strength weather-resistant metal is used for the steel belt 8 and the turbine screws 7; the throat hoop 3 is tightened by pre-tightening the turbine screw 7 by using a light tool during installation. The node structure of the transmission tower after the connection is completed is shown in fig. 4.
Example 2: the only difference from embodiment 1 is that the truss rods 2 comprise metal tubes 10 inside the shell tubes 9 and concrete 11 is filled between the metal tubes and the shell tubes on the outside, as shown in fig. 5.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The node structure of the power transmission tower is characterized by comprising a prefabricated multidirectional node (1), a prefabricated truss rod (2) and a hose clamp (3); a plurality of axial slits (4) are arranged on the circumference of each end of the multi-directional node (1), and concave-convex teeth distributed along the axial direction are also arranged on the inner surface of each end; the truss rod (2) comprises a pipe shell made of fiber reinforced composite materials, and concave-convex teeth are arranged on the outer surface of the end part of the pipe shell along the axial direction; the end parts of the truss rods (2) are inserted into the corresponding end heads of the multidirectional nodes (1), and concave-convex teeth on the inner surfaces of the end heads are meshed with concave-convex teeth on the outer surfaces of the end parts of the truss rods (2); the parts where the concave teeth and the convex teeth are meshed with each other are fastened through the hose clamp (3).
2. The node structure of a transmission tower according to claim 1, wherein the multi-directional node (1) is made of a fiber reinforced composite or a weather-resistant metal.
3. The node structure of a transmission tower according to claim 1, wherein the truss bars (2) further comprise metal tubes located at the inner layer of the pipe shells.
4. The node structure of a transmission tower according to claim 1, wherein the truss bars (2) further comprise metal pipes inside the pipe shells and concrete is filled between the pipe shells outside the pipe shells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220980174.9U CN218061714U (en) | 2022-04-26 | 2022-04-26 | Node structure of power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220980174.9U CN218061714U (en) | 2022-04-26 | 2022-04-26 | Node structure of power transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218061714U true CN218061714U (en) | 2022-12-16 |
Family
ID=84427478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220980174.9U Active CN218061714U (en) | 2022-04-26 | 2022-04-26 | Node structure of power transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218061714U (en) |
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2022
- 2022-04-26 CN CN202220980174.9U patent/CN218061714U/en active Active
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