Oblique strain power transmission iron tower

A technology of transmission towers and towers, which is applied in the field of corner-type and terminal-type transmission towers, can solve the problems of heavy tension-resistant transmission towers, and achieve the effect of optimizing the stress system

Active Publication Date: 2012-08-01
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the tower body of this kind of transmission tower is always vertical to the ground, this stress state makes this type of tension-resistant transmission tower heavy

Method used

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  • Oblique strain power transmission iron tower
  • Oblique strain power transmission iron tower
  • Oblique strain power transmission iron tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A specific example of the present invention will be described in detail below in conjunction with the accompanying drawings, the impact of the use of inclined tension-type power transmission towers on the force on the tower.

[0015] like Figure 2A As shown, in order to facilitate construction, in the inclined tension-resistant transmission tower of the present invention, the ground wire cross arm 1, the upper wire cross arm 2, the middle wire cross arm 3 and the lower wire The crossarms 4 are arranged horizontally, and the tower body 5 is inclined and forms an included angle θ with the vertical direction. like Figure 2B As shown, the inclination direction of the tower body is the direction opposite to the extension direction of the front and rear side wires 6 and 7 along the direction of the cross arm, that is, the inclination direction of the tower body is the direction indicated by the arrow in the figure.

[0016] Figure 3 is a schematic diagram of the force of ...

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Abstract

The invention provides an oblique strain power transmission iron tower. A tower body 5 and a vertical direction has an included angle Theta, ground conducting wire hanging point vertical load and tower weight generate a clockwise bending moment for tower feet, the direction of the clockwise bending moment is opposite to the direction of bending moment of ground conducting wire hanging point horizontal tension to the tower feet, and thereby a bending moment value of the tower feet is greatly reduced. In an actual engineering, under the premise that the safety and the stability of the iron tower are retained, a combined bending moment value generated by the load to the tower feet is regulated by regulating the included angle Theta of the tower body and the vertical direction, and thereby the stress state of the iron tower is optimized. The oblique strain power transmission iron tower enables the ground conducting wire hanging point vertical load and the tower weight into beneficial loadfor the stress of the whole strain iron tower and optimizes the stress system of the strain iron tower.

Description

technical field [0001] The invention belongs to the field of transmission line design, and in particular relates to a corner-type and terminal-type transmission tower optimized for the structure of a tension-resistant transmission tower. Background technique [0002] Transmission towers can be divided into cable-stayed towers, self-supporting towers and steel pipe poles according to their structural types. Transmission line towers can be divided into straight-line towers (including hanging corner towers), tension-resistant towers and special towers according to their uses. The tension-resistant towers include straight-line tension-type towers, corner-type towers and terminal-type towers, and the tension-resistant transmission towers bear the tension of the ground wire of the overhead line. [0003] At present, no matter what kind of structural form the transmission tower is, the tower body and the ground are designed vertically. For a tension-resistant iron tower with a la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G7/20
Inventor 王景朝韩军科程永峰杨靖波杨风利黄廷政张子富
Owner CHINA ELECTRIC POWER RES INST
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