Anchor for use in the post-tensioning of prestressed concrete

Details Anchor for use in the post-tensioning of prestressed concrete Anchor for use in the post-tensioning of prestressed concrete

1981-12-16

1982-12-07

Shedd, Wayne L.

Joints and connections

Interfitted members

Radially interposed shim or bushing

52223L, 403374, 249190, 425111, 264228, B25G 320, F16B 200, F16B 704

Patent

active

043624219

ABSTRACT:
An anchor for use in the post-tensioning of prestressed concrete, including an anchor case having a longitudinally tapering outer wall surface and a tapered longitudinal bore for receiving a chuck comprising wedge segments which are in gripping engagement with a tendon passing therebetween. The anchor case and chuck are approximately the same length, and the anchor case is cold forged with the top end thereof folded inwardly to effect greater thickness at that point, which structure, in combination with a dome-shape thrust plate extending outwardly from the outer periphery of the anchor case proximate the folded portion thereof, contains the hoop forces exerted on the anchor case by the chuck.

REFERENCES:
patent: 2858758 (1958-11-01), Carter
patent: 3676034 (1972-07-01), Stinton et al.
patent: 3762027 (1973-10-01), Burtelson
patent: 3766609 (1973-10-01), Brandestini et al.
patent: 3833706 (1974-09-01), Edwards
patent: 3877113 (1975-04-01), Reyes
patent: 3952377 (1976-04-01), Morell

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