framework mast
A narrow freestanding framework tower on a single foundation, stabilized without lateral guy wires.
Pictured: Sutro Tower
A framework mast is a narrow or tapering freestanding tower anchored to a single foundation, which supports its own weight and does not require lateral wires for stabilization or other support. These are usually used for signal transmission in telecommunications, especially radio and television.
The open framework carries its own weight and provides the tower's stability. External guy wires are not required to hold it upright.
Transmission equipment is a common use, but the supporting form defines the mast. A solid single pole and a laterally wired mast have different structural arrangements.
framework mast Photos
Related definitions
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gantry
A structure with one or more upright masts supporting a horizontal member, often for signs or working equipment. -
pole
A freestanding antenna-like structure consisting of one vertical support, including an independent flagpole. -
sign tower
A freestanding mast or similar narrow structure supporting a prominent sign, logo, billboard, or display object. -
totem pole
A sculpturally carved mast with stacked emblematic figures in the traditions of the Northwest Coast of North America. -
wired mast
A narrow pole or framework mast stabilized by taut wires anchored away from its own foundation.