Cable tower is a common tower type widely used in overhead transmission lines and communication fields. The following is a detailed introduction about it:

Structural composition

①　Rod body: It is the main load-bearing structure, with independent steel pipe solid web structure, as well as truss structure composed of steel pipes, round steel, and angle steel.

②　Pulling wire: Multiple strands of high-strength galvanized steel strands are used to pull the pole body in three or four directions to maintain its upright and stable position.

③　Other components: including tower head, cross arm, foundation, etc. The tower head and column are generally composed of spatial trusses made of angle iron, and the foundation is used to fix the pole body and pull wires to ensure the stability of the tower body.

Classification method

①　Classified by appearance: can be divided into single column, door type, V-shaped, and cat head type.

②　Classified by purpose: including straight line tension towers, tension type tension towers, and special type tension towers, among which tension type tension towers can be further divided into straight line tension type, corner type, and terminal type; Special type cable towers include cable towers used for crossing, repositioning, branching, and other special requirements.

③　Classified by the number of wire loops: there are single loop cable towers, double loop cable towers, and multi loop cable towers.

Characteristic analysis

①　Advantages: Firstly, it saves materials. The equilateral triangle layout and steel strand wire fixation method greatly reduce the self weight of the tower body, reduce the wind load coefficient, fully utilize the strength characteristics of materials, and reduce steel consumption. Secondly, the construction is simple, the foundation form is simple, the land occupation is small, the damage to load-bearing objects is minimal, and the floor foundation construction is convenient; When constructing on the floor, there are many maintenance structures around, and it is convenient to fix the cables and the construction speed is fast; When constructing on a hillside, the advantage of the hillside can be utilized for cable fixation, making installation convenient. Thirdly, it has a high carrying capacity and can be designed as a multi-layer platform, capable of mounting multiple antennas and microwave transmission equipment.

②　Disadvantage: It requires a large space for cable pulling on site, occupying a large area of land; Due to the susceptibility of the cable to environmental factors causing it to loosen, frequent maintenance of the cable and tower body is required, resulting in high maintenance costs and difficulty; Compared to some self-supporting iron towers, their reliability is relatively poor, and their stability depends on the degree of tightening of the cables. If there is a problem with the cables, it can easily lead to an imbalance in the tower body and a relatively weak load-bearing capacity.

Main parameter

①　Design wind speed: typically 35 meters per second.

②　Seismic resistance: up to level 8.

③　Ice thickness: 5-10 millimeters.

④　Verticality: required to be 1/1000.

⑤　Suitable temperature:- 45 ℃ -+45 ℃.

⑥　Anti corrosion treatment: Usually hot-dip galvanizing is used.

⑦　Service life: approximately 30 years.

Application area

①　In the field of communication: as a communication tower, it can be installed on rooftops, floors, or slopes with load-bearing capacity to provide support for signal transmission antennas, used for signal transmission and transmission in communication networks such as mobile, China Unicom, and telecommunications, expanding signal coverage.

②　In the field of electric power: it is used to support wires and lightning rods in overhead transmission lines, so that the wires meet the distance requirements with respect to the ground and ground objects, and can withstand the loads of wires, lightning rods, themselves, and external loads.

③　Other fields: It can also be used as a wind measurement tower for environmental monitoring, wind resource data collection, etc., providing support for early planning of power plants, island wind measurement, meteorological data collection, etc.

Workshop

laser cutting

Automatic production of angle steel

Hot dip galvanizing workshop