A Triodetic dome is a type of geodesic dome whose space frame is constructed using Triodetic connectors, invented in 1955 by the Canadian Arthur E. Fentiman. [1] [2] [3]
A Triodetic dome is a type of geodesic dome whose space frame is constructed using Triodetic connectors, invented in 1955 by the Canadian Arthur E. Fentiman. [1] [2] [3]
Triodetic connectors were invented in 1955 by the Canadian Arthur E. Fentiman (1918–93), and patented in 1958. [1] [2] The system was developed further by A. E. Fentiman's brother, Harold Gordon ("Bud") Fentiman (1921–86) and was in commercial use by 1960. [2] [4] Triodetic Structures Ltd was established in 1962 to market the system; the Fentiman family sold the company in 1977. [2]
The connector consists of a hub, usually of aluminium, with up to twelve slots into which tubes (the axial members) can be inserted. The assemblage is stabilized by a central bolt with a washer (through the middle of the hub). It is generally used with aluminium tubes, but stainless steel was introduced in 1966. [1] [2] [3] The tubes do not require bolting or welding together, [2] [5] and the frame can be put together by non-specialists using basic equipment. [2]
Various shapes in addition to domes are possible, including barrel vaults, pyramids and hyperbolic paraboloids. [2] Recent applications of the system have included as foundations for building, which can function on permafrost. [2] [6]
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