Cryogenic wedge-type anchor for stranded tension cables

Details Cryogenic wedge-type anchor for stranded tension cables Cryogenic wedge-type anchor for stranded tension cables

1985-09-26

1987-05-05

Pate, III, William F.

Static structures (e.g., buildings)

With component having discrete prestressing means

Beam, girder, or truss construction

52223L, 403371, E04C 310

Patent

active

046621342

ABSTRACT:
A wedge-type anchor for stranded tension cables. It has anchoring wedges that rest in a conical wedge-reception bore in a wedge mount. The wedges have teeth on their inner surface that decrease in depth toward the point of the wedge. To allow the anchor to be utilized at cryogenic temperatures without the core sliding through and the outer strands breaking prematurely, the ratio of the pitch (8) of the teeth to the diameter of the cable is between 1:20 and 1:30 at a ratio of the effective compression length (11) of each anchoring wedge (4) to the diameter (5) of the cable of between 2.8 and 4.5, and the teeth at the point of the wedge have a contact surface that tapers at an angle (13) of 4.degree. to 6.degree. to the longitudinal axis.

REFERENCES:
patent: Re27954 (1974-04-01), Kelly
patent: 2009318 (1935-07-01), Highfield
patent: 2177364 (1939-10-01), Fotsch
patent: 3703748 (1972-11-01), Kelly

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