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Non-prestressed galvanized steel pipe-concrete composite electric pole and preparation method thereof

A galvanized steel pipe and non-prestressed technology, which is applied in the field of electric poles, can solve the problems of poor corrosion resistance, high brittleness, and self-heavyness of annular concrete poles, and achieve strong corrosion resistance, good anti-collision and collapse performance, and rigidity big effect

Inactive Publication Date: 2021-02-02
GUANGDONG GAITEQI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a non-prestressed galvanized steel pipe with good toughness, good mechanical properties, large bending moment, good durability, and good corrosion resistance in order to overcome at least one of the above-mentioned deficiencies in the prior art- Concrete composite pole and its preparation method; solving the problems of ordinary circular concrete poles such as high brittleness, heavy weight, and poor corrosion resistance

Method used

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  • Non-prestressed galvanized steel pipe-concrete composite electric pole and preparation method thereof
  • Non-prestressed galvanized steel pipe-concrete composite electric pole and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] to combine Figure 1~2 As shown, a K-level non-prestressed galvanized steel pipe-concrete composite pole with a slightly diameter of 190mm and a length (L) of 10m includes a galvanized steel pipe 100 and a concrete layer 200 poured on the inner wall of the galvanized steel pipe 100, and the galvanized steel pipe The thickness t1 of 100 is 1.5 mm, the thickness of the galvanized layer is 20 μm, and the thickness t2 of the concrete layer 200 is 30 mm.

[0030] The galvanized steel pipe 100 has two rows of reserved holes 110 with a diameter of 14mm along the length direction. The spacing between the reserved holes 110 is 200mm. Nut 210, in this embodiment, the nut 210 embedded in the concrete layer 200 is used to fix the ladder. connect. It can be understood that the pre-embedded nut 210 can also be used to fix other supports, and the pre-embedded nut 210 can also be made of other anti-corrosion materials.

[0031] In order to improve the interface bonding between the g...

Embodiment 2

[0041] to combine Figure 1~2 As shown, a K-level non-prestressed galvanized steel pipe-concrete composite pole with a slightly diameter of 190mm and a length (L) of 10m includes a galvanized steel pipe 100 and a concrete layer 200 poured on the inner wall of the galvanized steel pipe 100, and the galvanized steel pipe The thickness t1 of 100 is 3 mm, the thickness of the galvanized layer is 40 μm, and the thickness t2 of the concrete layer 200 is 100 mm.

[0042] The galvanized steel pipe 100 is reserved with two rows of reserved holes 110 with a diameter of 20 mm along the length direction. The spacing between the reserved holes 110 is 300 mm. Nut 210, in this embodiment, the nut 210 embedded in the concrete layer 200 is used to fix the ladder. connect. It can be understood that the pre-embedded nut 210 can also be used to fix other supports, and the pre-embedded nut 210 can also be made of other anti-corrosion materials.

[0043] In order to improve the interface bonding...

Embodiment 3

[0053] to combine Figure 1~2 As shown, a K-level non-prestressed galvanized steel pipe-concrete composite pole with a slightly diameter of 190mm and a length (L) of 10m includes a galvanized steel pipe 100 and a concrete layer 200 poured on the inner wall of the galvanized steel pipe 100, and the galvanized steel pipe The thickness t1 of the 100 is 2.2 mm, the thickness of the galvanized layer is 30 μm, and the thickness t2 of the concrete layer 200 is 65 mm.

[0054] The galvanized steel pipe 100 has two rows of reserved holes 110 with a diameter of 17mm along the length direction. The spacing between the reserved holes 110 is 250mm. Nut 210, in this embodiment, the nut 210 embedded in the concrete layer 200 is used to fix the ladder. connect. It can be understood that the pre-embedded nut 210 can also be used to fix other supports, and the pre-embedded nut 210 can also be made of other anti-corrosion materials.

[0055] In order to improve the interface bonding between t...

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Abstract

The invention relates to the technical field of electric poles, and discloses a non-prestressed galvanized steel pipe-concrete composite electric pole and a preparation method thereof. The non-prestressed galvanized steel pipe-concrete composite electric pole comprises a galvanized steel pipe and a concrete layer poured on the inner wall of the galvanized steel pipe, and a reinforcement frameworkis planted in the concrete layer. The non-prestressed galvanized steel pipe-concrete composite electric pole is mainly of a composite hollow structure formed by centrifugally forming the galvanized steel pipe and concrete, the characteristics of good mechanical properties and good corrosion resistance of the galvanized steel pipe and the concrete are fully played, the overall performance of the structure is improved, compared with a traditional composite electric pole structure, the non-prestressed galvanized steel pipe-concrete composite electric pole is easy to form, high in bearing capacity, high in rigidity, good in impact resistance and capable of preventing collision and collapse, moreover, the corrosion resistance is relatively high, and the corrosion resistance to atmosphere, water, as well as acid, alkali and salt with general concentrations and various solvents is relatively good. The problems that an existing traditional concrete electric pole is insufficient in bending moment, poor in frost resistance, poor in steel pipe pole corrosion resistance and high in manufacturing cost are solved.

Description

technical field [0001] The invention relates to the technical field of electric poles, in particular to a non-prestressed galvanized steel pipe-concrete composite electric pole and a preparation method thereof. Background technique [0002] The development of my country's transmission line towers has a history of more than 100 years. Among them, since my country produced the first square solid concrete pole in 1924, my country's concrete poles have a history of nearly 80 years. [0003] Most of the electric poles in the prior art are electric poles of reinforced concrete structure, which are cheap in cost, mature in construction and installation technology, and are widely used in transmission lines of various voltage levels in China. However, this structure also has certain limitations: (1) Concrete is a brittle material with low tensile strength, easy to crack, and poor ability to resist natural disasters; (2) The concrete unit density bearing capacity is low, and the concr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/00E04H12/02E04H12/12C04B28/00
CPCC04B28/00E04H12/00E04H12/02E04H12/12C04B14/00C04B2103/302C04B40/024
Inventor 刘福财肖敏李斌黄贺明
Owner GUANGDONG GAITEQI NEW MATERIAL TECH CO LTD
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