Pole shock-resistant mechanism of

A technology for poles and positioning grooves, which is applied to buildings, towers, building types, etc., can solve the problem of insignificant ductility effect of poles, and achieve the effects of excellent bonding performance, improved compressive strength, and stable anti-seismic mechanism.

Active Publication Date: 2016-02-24
STATE GRID HENAN TONGBAI POWER SUPPLY CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these patents, the effect of pole ductility is not obvious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 , 2 As shown, a pole anti-seismic mechanism includes a base 1, the base 1 is a prism, the upper end of the base 1 is provided with a positioning groove 2, and a vertical orientation is set between the bottom of the pole 3 and the positioning groove 2 The spiral pressure spring 4 locks the bottom of the electric pole 3 and the base 1, and a disc hoop 5 is arranged around the pole 3, and the disc hoop 5 is provided with equidistant circular holes 6, and the base 1 and the disc The hoop 5 is formed by pouring concrete.

[0026] The concrete is made of the following raw materials in parts by weight: 70 parts of P.O42.5 portland cement, 10 parts of steel fiber, 10 parts of polyacryl alcohol fiber, 20 parts of fly ash, 50 parts of mineral powder, medium 50 parts of sand, 25 parts of water and 10 parts of polycarboxylate superplasticizer. Add the above-mentioned various raw materials into the blender in turn, and mix evenly to obtain the product.

[0027] ...

Embodiment 2

[0032] The anti-seismic mechanism of the electric pole in this embodiment is as described in Embodiment 1, and the same parts will not be repeated. Some differences are: the positioning groove 2 is filled with asphalt, and the lower end of the helical pressure spring 4 is embedded in the in asphalt.

[0033] The concrete is made of the following raw materials in parts by weight: 75 parts of P.O42.5 portland cement, 5 parts of steel fiber, 13 parts of polypropylene alcohol fiber, 30 parts of fly ash, 60 parts of mineral powder, medium 50 parts of sand, 26 parts of water and 15 parts of polycarboxylate superplasticizer. Add the above-mentioned various raw materials into the blender in turn, and mix evenly to obtain the product.

[0034] The steel fiber is hook-shaped, with a diameter of 0.2-0.5mm, a length of 20-30mm, and a tensile strength of ≥1000N / mm 2 .

[0035] The diameter of the polypropylene alcohol fiber is 0.6-0.8mm, the length is 40-60mm, and the tensile strength i...

Embodiment 3

[0039] The anti-seismic mechanism of the electric pole in this embodiment is as described in Embodiment 2, and the same parts will not be repeated. Some differences are: the base is a circular platform, and the cross-sectional area of ​​the helical pressure spring 4 is the same as that of the electric pole 3 .

[0040] The concrete is made of the following raw materials in parts by weight: 80 parts of P.O52.5 portland cement, 11 parts of steel fiber, 15 parts of polyacryl alcohol fiber, 30 parts of fly ash, 62 parts of mineral powder, medium 65 parts of sand, 30 parts of water and 20 parts of polycarboxylate superplasticizer. Add the above-mentioned various raw materials into the blender in turn, and mix evenly to obtain the product.

[0041] The steel fiber is hook-shaped, with a diameter of 0.2-0.5mm, a length of 20-30mm, and a tensile strength of ≥1000N / mm 2 .

[0042] The diameter of the polypropylene alcohol fiber is 0.6-0.8mm, the length is 40-60mm, and the tensile st...

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Abstract

The invention belongs to the technical field of power transmission line construction projects and particularly relates to a pole shock-resistant mechanism. The pole shock-resistant mechanism provided by the invention comprises a base, wherein a positioning groove is formed on the upper end face of the base; a vertically oriented spiral pressure spring is arranged between the bottom of the pole and the positioning groove to close the bottom of the pole and the base; a disc loop is arranged around the pole; isometric round holes are formed on the disc loop; and the base and the disc loop are poured by concrete. The pole shock-resistant mechanism provided by the invention can effectively improve the ductility, the transverse shearing capacity and the bending bearing capacity of the pole, so that the reliability of the pole is improved, and the safety and stability of power transmission lines are ensured.

Description

technical field [0001] The invention belongs to the technical field of transmission line construction engineering, and in particular relates to an anti-seismic mechanism for electric poles. Background technique [0002] At present, when the towers of power transmission and distribution lines of 35kV and below encounter natural disasters such as strong winds, heavy snow, heavy rain, and ice, they often cause foundation cracks and uneven settlement. Because the towers are subjected to unbalanced stress, the lines will be like " Like the domino effect, there will be a whole section of tilting and overturning, which will cause severe damage to the tower, causing large-scale damage to the power grid and power outages, seriously endangering power safety and residents' production and living electricity, and causing serious economic losses. loss. [0003] Chinese patent CN203394145U discloses an anti-overturning mushroom tray type pole holder, which includes a combined mushroom tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/48C04B16/06E04H12/22
Inventor 罗婧罗大虎仝安琪
Owner STATE GRID HENAN TONGBAI POWER SUPPLY CO
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