Static structures (e.g. – buildings) – With component having discrete prestressing means – Anchorage
Patent
1996-04-25
1998-05-26
Kent, Christopher
Static structures (e.g., buildings)
With component having discrete prestressing means
Anchorage
5274521, E04C 512
Patent
active
057550654
ABSTRACT:
A post-tension system including an anchor member having a tendon-receiving interior passageway, a tendon extending through the passageway, a plurality of wedges interposed between the anchor member and the tendon in the interior passageway, and a spring received by one end of the anchor member so as to be in compressive relationship with the plurality of wedges so as to urge the plurality of wedges in a direction toward an opposite end of the anchor member. A cap member is affixed to one end of the anchor member and extends over an end of the tendon. The spring is interposed between the cap and the plurality of wedges. The spring is affixed to an interior shoulder on the cap member. A seal is interposed between an exterior surface of a sheathed portion of the tendon and an interior surface of a tubular extension formed in an encapsulation around the anchor.
REFERENCES:
patent: 4640068 (1987-02-01), Jungwirth et al.
patent: 4718209 (1988-01-01), Hansen et al.
patent: 5055021 (1991-10-01), Bonato
patent: 5072558 (1991-12-01), Sorkin
patent: 5440842 (1995-08-01), Sorkin
VSL Corporation, VSL Post-Tensioning Systems, Mar. 1994, pp. 17-18, 24-27.
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