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Cable tower series

The cable tower is a support structure for overhead transmission lines to support conductors and lightning rods. So that the wire on the ground, ground objects to meet the limit distance requirements. And can withstand wire, lightning conductor and its own load and external load.

According to its shape, the power tower can be generally divided into:

There are five types of wine cup, cat head, top type, dry type and barrel type. Tension towers, straight, corner tower, transposition towers (replace wire phase position tower), terminal tower and the crossing tower and so on, their structure is characterized by various tower type space truss structure, bar is mainly composed of single equilateral Angle steel or combination of Angle steel, material generally use (A3F) Q235 and Q345 (16 mn) two kinds, unfinished bolts, is used to connect between the bar by bolt shear connection, the tower is composed of Angle steel, connecting plate and bolt, individual components such as column foot from several steel plate welded into an assembly, so hot dip galvanized anti-corrosion, transportation and construction installation is very convenient. For the tower whose height is less than 60m, a foot nail is set on one of the main materials of the tower to facilitate the construction workers to climb the tower.

structure

Cable tower is composed of tower head, column and cable. The tower head and column are generally formed by the spatial distribution frame composed of Angle iron, which has good overall stability and can withstand large axial pressure. The cables are generally made of high-strength steel strand, which can withstand large tensile force. Therefore, the tower can make full use of the strength characteristics of materials and reduce the consumption of materials. However, the cable covers a large area, which is not conducive to machine farming, so it is less used.

In terms of shape, the cable tower can be divided into the triangular wire arrangement of the "up" type, cat head and wire horizontal arrangement of the door, cable V, and so on, as well as vertical self-supporting internal cable gate tower.