|This article does not cite any references or sources. (December 2009)|
A guyed mast is a tall thin vertical structure that depends on guy lines for stability. The mast itself has the compressive strength to support its own weight, but usually does not have the shear strength to stand unsupported, and requires guy lines, diagonal tensioned cables attached to the ground, usually spaced at equal angles about its base, to resist lateral forces such as wind loads and keep it upright.
Guyed masts are frequently used for radio masts. The mast can either support aerials (for VHF and UHF) mounted at its top, or the entire structure itself can function as an antenna (for VLF, LF, MF and HF); this is called a mast radiator. In the latter case, the mast needs to be insulated from the ground. They can also be used to support all types of wire aerials (for VLF, LF, MF and HF).
Guyed masts can also be used as the tops of free standing towers. A famous tower of this type is the Gerbrandy Tower.
Guyed masts are sometimes also used for meteorological measurements at certain heights above ground level. Sometimes they are used as pylons, although their usage in agricultural areas is problematic because anchor foundations handicaps ploughing. A very special use is the BREN Tower.
- List of masts for examples of guyed mast structures.
|Wikimedia Commons has media related to Guyed masts.|