A high-durability lightweight anti-typhoon electric pole and its manufacturing method

Abstract

The invention provides a light anti-typhoon pole with high durability and a production method of the pole. The pole is produced from concrete and rebar. The concrete is active powder concrete and comprises raw materials in parts by weight as follows: 700-800 parts of cement, 20-100 parts of glutinous rice flour, 150-300 parts of silica fume, 570-850 parts of rough sand, 250-500 parts of medium sand, 100-250 parts of fine sand, 20-150 parts of shell powder, 20-120 parts of chitin, 120-250 parts of steel fiber, 5-30 parts of basalt fiber, 50-80 parts of a water reducer and 140-160 parts of water. All the components are matched scientifically, and the obtained pole has light weight, good durability and high strength.

Description

technical field [0001] The invention relates to the technical field of concrete electric pole manufacturing, in particular to a high-durability light-weight typhoon-resistant electric pole. Background technique [0002] In recent years, the global typhoon disasters have been particularly serious, which is reflected in the high value of the frequency and intensity of typhoons. Typhoon disasters frequently occur in the coastal areas of southern my country, causing damage to power transmission and distribution line fittings, disconnection, broken poles, and inverted poles. Severe accidents such as tornadoes, tower collapses, etc. have posed a great threat to the safe operation of the power grid, and the direct and indirect economic losses caused by the typhoon can easily reach hundreds of millions of yuan. For example, in July 2014, under the damage of the super typhoon "Wamasun", 2,506 10kV overhead distribution lines in Hainan Province were damaged, and a total of 24,137 poles...

AI Technical Summary

Problems solved by technology

[0003] According to the wind damage report, the poles were broken at the root or at the middle connection, mainly due to the low concrete strength of the existing prestressed concrete poles, and material damage occurred under large bending moments, resulting in broken poles

If the requirements of large bending moment load are met, the concrete pole will be very heavy, which will bring great difficulties to transportation, construction and operation and maintenance

At the same time, the bending moment bearing capacity of each section of the entire length of the existing prestressed pole is not consistent with the bending moment generated by the external load. There are too many reinforcements in the upper part, and the unreasonable phenomenon that the upper section is too safe than the lower section appears.

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