The communication tower belongs to a signal transmission tower, also called a signal transmission tower or signal tower. The main function supports signals and supports the signal transmission antenna. It is used for the communication department such as mobile, China Unicom, telecommunication, and GPS (Global Positioning System). .
First, the type of communications tower
The communication tower adopts a self-standing towering structure and can be divided into angle steel towers, steel pipe towers and single-pipe towers according to the section forms of its components.
(1) Under normal circumstances, the angle steel tower should adopt a polyline type with a horizontal cross section of a square and an outer contour approximate to a parabola; if it is limited by the construction site, the horizontal section of the angle steel tower can also adopt a rectangular shape; the root opening of the angle steel tower should not be smaller than the tower High 1/8.
(2) The steel tube tower and the steel tube combination tower should adopt a trigon or quadrilateral shape, and the root opening size should not be less than 1/25 of the tower height.
(3) Single-tube towers are generally made of hot-rolled seamless steel tubes or automatic coil-welded steel tubes. The appearance of the tubes is conical. The height should be controlled within 50 meters.
Second, anti-rust and anti-corrosion method
All component materials of the steel tower structure (except for the anchor bolts) are required to be treated with rust prevention. In general, hot-dip galvanizing method is recommended, which requires 30 years of corrosion resistance.
Third, the communication tower maintenance
1. As a support for communication transmission antennas, the tower truss component is an important communication transmission infrastructure. The maintenance of the tower truss structure will directly affect the normal operation of the communication transmission system. As the tower members are exposed to open air and are subjected to various natural meteorological and ecological environments for a long period of time, their performance structures are bound to be greatly affected. In addition to directly affecting communications safety, tower crane components are also related to personal safety. Therefore, towers must be highly valued. The maintenance work of concrete components.
2. The communication tower constructor shall be responsible for life-long maintenance. One year after the installation of the tower, the verticality of the tower should be re-examined and corrected. After correction, the contractor installing the iron tower shall cast the exposed ground bolts with fine stone concrete to prevent corrosion of the anchor bolts.
3. Communication towers are generally inspected once every six months. In addition, after every eight-stage high winds, earthquakes or other special circumstances, they should also be fully inspected. Each inspection must be held accountable, with detailed records, the establishment of maintenance files, if any problems should be dealt with promptly.
