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An environmentally friendly low-stress concrete pole and its preparation method

A concrete and low-stress technology, which is applied in the field of concrete poles and their preparation, environmental protection and low-stress concrete poles and their preparations, can solve the problem of aggravating the erosion of harmful substances in poles and the corrosion of steel bars, reducing the bearing capacity of poles, reducing Pole durability and other issues, to achieve the effect of resisting external impact, improving compactness, and reducing loss just now

Active Publication Date: 2020-03-13
兴安盟琨翔电力工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of cracks will increase the degree of corrosion of the pole by harmful substances and the degree of corrosion of steel bars during operation, reduce the durability of the pole, and thus reduce the bearing capacity of the pole; poor deformation performance is not good for resisting repeated wind loads during operation It also tends to cause the damage of the pole to be brittle

Method used

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  • An environmentally friendly low-stress concrete pole and its preparation method
  • An environmentally friendly low-stress concrete pole and its preparation method
  • An environmentally friendly low-stress concrete pole and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1 Environment-friendly low-stress concrete pole and its preparation

[0048] The environmentally friendly low-stress concrete pole is formed by wrapping steel rod skeleton with concrete, wherein the steel rod skeleton includes main reinforcement and auxiliary reinforcement, the main reinforcement is axially arranged inside the pole, and the auxiliary reinforcement is spirally welded to the periphery of the main reinforcement;

[0049] Wherein, the main reinforcement is a prestressed steel bar, which is a medium-carbon alloy hot-rolled steel bar 30nmsi, which is formed through electrothermal quenching and tempering heat treatment, and the auxiliary reinforcement adopts cold-drawn low-carbon steel wire. 60mm, the helical pitch within 1000mm from the end of the spiral rib is 60mm, and the helical pitch of the remaining length of the spiral rib is 100mm;

[0050] Said concrete consists of 100 parts of cement, 120 parts of sand, 260 parts of gravel, 4.0 parts of nano...

Embodiment 2

[0064] Example 2 Environment-friendly low-stress concrete pole and its preparation

[0065] The environmentally friendly low-stress concrete pole is formed by wrapping steel rod skeleton with concrete, wherein the steel rod skeleton includes main reinforcement and auxiliary reinforcement, the main reinforcement is axially arranged inside the pole, and the auxiliary reinforcement is spirally welded to the periphery of the main reinforcement;

[0066] Wherein, the main reinforcement is a prestressed steel bar, which is a medium-carbon alloy hot-rolled steel bar 30nmsi, which is formed through electrothermal quenching and tempering heat treatment, and the auxiliary reinforcement adopts cold-drawn low-carbon steel wire. 60mm, the helical pitch within 1000mm from the end of the spiral rib is 60mm, and the helical pitch of the remaining length of the spiral rib is 100mm;

[0067] Said concrete consists of 80 parts of cement, 90 parts of sand, 190 parts of gravel, 3.0 parts of nano t...

Embodiment 3

[0081] Example 3 Environment-friendly low-stress concrete pole and its preparation

[0082] The environmentally friendly low-stress concrete pole is formed by wrapping steel rod skeleton with concrete, wherein the steel rod skeleton includes main reinforcement and auxiliary reinforcement, the main reinforcement is axially arranged inside the pole, and the auxiliary reinforcement is spirally welded to the periphery of the main reinforcement;

[0083] Wherein, the main reinforcement is a prestressed steel bar, which is a medium-carbon alloy hot-rolled steel bar 30nmsi, which is formed through electrothermal quenching and tempering heat treatment, and the auxiliary reinforcement adopts cold-drawn low-carbon steel wire. 60mm, the helical pitch within 1000mm from the end of the spiral rib is 60mm, and the helical pitch of the remaining length of the spiral rib is 100mm;

[0084] The concrete consists of 120 parts of cement, 150 parts of sand, 300 parts of crushed stone, 5.0 parts o...

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Abstract

The invention provides an environment-friendly low-stress concrete electric pole. On the one hand, by screening and combining the concrete components, it is composed of cement, sand, gravel, nano-titanium dioxide, nano-calcium carbonate, mineral powder, and polymethyl methacrylate microspheres. , polycarboxylate superplasticizer and water to form a pole with both air purification and good mechanical properties; on the other hand, prestressed steel rods are used as the main reinforcement of the pole to form a good grip with concrete. The formed steel rod skeleton is poured with the above-mentioned concrete, and then the mold is centrifuged and steam cured. The finally prepared concrete pole has no cracks and can resist the impact force generated during transportation, hoisting and unloading, and maintain a complete and crack-free state. .

Description

technical field [0001] The invention belongs to the field of electric pole equipment and production technology, and relates to a concrete electric pole and a preparation method thereof, in particular to an environment-friendly low-stress concrete electric pole and a preparation method thereof. Background technique [0002] Since my country produced the first square solid concrete pole in 1924, my country's concrete pole has a history of more than 80 years. Among them, during the 40 years from 1924 to 1964, my country's concrete poles experienced a total of five types of development, square solid concrete poles (1924), round solid concrete poles (1926), centrifugal concrete poles Pole (1938), relatively complete circular concrete pole (1952), prestressed concrete pole (1964). At present, concrete poles have been widely used in overhead transmission lines, broadcasting, post and telecommunications, communication and lighting lines, especially concrete poles used in overhead tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00E04H12/12C04B111/34
CPCC04B28/00C04B2111/00017C04B2111/343E04H12/12C04B14/068C04B14/02C04B14/305C04B14/28C04B18/141C04B16/04C04B2103/302C04B22/002C04B32/02
Inventor 于明仁
Owner 兴安盟琨翔电力工程有限公司
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