Pole for assembling power transmission towers

Abstract

The invention relates to a pole for assembling power transmission towers. Each power transmission tower comprises a tower body and a cross arm. The tower bodies are vertically arranged, and the cross arms are transversely arranged on the tower bodies. The pole comprises upper end sections, standard sections and lower end sections and is provided with stay wires. The upper end sections, the standard sections and the lower end sections are sequentially arranged from top to bottom, and the stay wires are connected with the power transmission towers; the upper end sections, the standard sections and the lower end sections are connected with one another by rectangular connecting pieces, bodies of the standard sections are rectangular frames, the rectangular frames comprise main pipes and adjacent inclined pipes among the main pipes, and the main pipes are vertically arranged; the stay wires extent to the tower bodies from the top of the pole and are supported by brace rods which are horizontally arranged on the power transmission towers. According to the technical scheme, the pole has the advantages that the problem of excessively large included angles between ground stay wires of existing poles and the horizontal plane can be solved by the aid of the pole, and the pole is light and stable and is easy to carry.

Description

technical field [0001] The invention relates to a holding pole, in particular to a holding pole for assembling a transmission tower. Background technique [0002] The pole is a lifting tool used when hoisting equipment. There are mainly two types of poles: tube type and lattice type. Under the same load capacity, the lattice type is lighter in weight than the single column type, with good longitudinal stability, high bending strength and small lateral deformation. Therefore, the lattice pole is more widely used than that. [0003] Existing lattice-type pole-holding materials generally use steel standard sections and aluminum standard sections. The density of steel is high, and the poles made of it are heavy, which is not conducive to assembly, disassembly and transportation, especially in complex mountainous areas and areas with harsh environments. Installation and transportation are more difficult. The density of aluminum material is relatively low, and the strength of t...

AI Technical Summary

Problems solved by technology

[0004] (1) Low elastic modulus: the elastic modulus of FRP is 5 times smaller than that of steel, and the rigidity is low

[0005] (2) Short temperature resistance period: FRP generally cannot be used at high temperatures for a long time. For example, general-purpose polyester FRP is generally only used below 100°C; general-purpose epoxy FRP is only above 60°C, and its strength drops significantly

[0006] (3) Easy aging: poor aging resistance under conditions such as ultraviolet rays, wind, sand, rain and snow, chemical media, mechanical stress, etc.

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