Value limiting stress concrete electric pole

A technology of concrete and electric poles, which is applied in the field of power transmission equipment, can solve the problems of loss of flexural strength and impact strength, complicated binding process of electric pole steel skeleton, and increase of production cost, so as to improve bearing capacity and toughness, reduce braiding Network equipment investment, the effect of prolonging the service life

Inactive Publication Date: 2018-03-06
广东永基电力器材厂有限公司
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  • Abstract
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Problems solved by technology

However, if the existing concrete poles are fully prestressed, the flexural strength and impact strength will be lost, and the toughness will be insufficient, so there will be partially prestressed concrete poles.
Partially prestressed concrete poles are combined with prestressed steel bars and non-prestressed steel bars. Although this method can meet the strength requirements, the steel consumption is also large. Complicated, reducing production efficiency and increasing production cost

Method used

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  • Value limiting stress concrete electric pole
  • Value limiting stress concrete electric pole
  • Value limiting stress concrete electric pole

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Embodiment Construction

[0026] A limit stress concrete pole of the present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0027] Such as figure 1 Shown, in a preferred embodiment, a kind of limit stress concrete electric pole of the present invention comprises the rod body 1 of the reinforced concrete of annular surface, and rod body 1 is pyramid shape, and taper is 1:75, and rod body 1 The top end is provided with a concrete roof 2, the rod body 1 includes a steel rod skeleton 3 and a concrete protection layer 4, the concrete protection layer 4 wraps the steel rod skeleton 3, and the steel rod skeleton 3 includes a main reinforcement 31 and an additional reinforcement 32 , erecting ribs 33 and spiral ribs 34, the main ribs 31 and additional ribs 32 are spaced apart from each other, and are PC steel rods with the same length, the stress of the main ribs 31 is controlled at 63%-68% of the design strength of the steel bar, and t...

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Abstract

The invention belongs to the field of power conveying equipment, and particularly relates to a value limiting stress concrete electric pole. The value limiting stress concrete electric pole comprisesa reinforced concrete pole body, the cross section of the reinforced concrete pole body is an annular surface, the pole body is in a conical shape, the taper is 1 to 75, and the top end of the pole body is provided with a concrete top cover. The pole body comprises a steel bar skeleton and a concrete protective layer. The steel bar skeleton is wrapped with the concrete protective layer. The steelbar skeleton comprises main ribs, auxiliary ribs, an erection bar and a helical bar. According to the value limiting stress concrete electric pole, the main bars and the auxiliary bars adopt PC steelplates, by applying different stress, the comprehensive performance of the electric pole is improved, steel materials are saved, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of power transmission equipment, in particular to a limit stress concrete pole. Background technique [0002] At present, the circular prestressed concrete pole used to replace the iron tower as the support of the power transmission line can increase the rigidity of the pole by applying prestress to the steel bars in the concrete with a circular cross section, so as to support the heavy load. transmission lines. However, if the existing concrete poles are fully prestressed, the flexural strength and impact strength will be lost, and the toughness will be insufficient, so partially prestressed concrete poles have appeared. Partially prestressed concrete poles are combined with prestressed steel bars and non-prestressed steel bars. Although this method can meet the strength requirements, the steel consumption is also large. Complexity reduces production efficiency and increases production costs. Contents of the inve...

Claims

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Application Information

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IPC IPC(8): E04H12/16
CPCE04H12/16
Inventor 吕森金陈晓绚
Owner 广东永基电力器材厂有限公司
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