Ductile-failure anchors for concrete elements

Details Ductile-failure anchors for concrete elements Ductile-failure anchors for concrete elements

1996-12-02

1999-05-04

Kent, Christopher

Static structures (e.g., buildings)

Assembled in situ-type anchor or tie

Socket type

52 99, 52125, 52701, 52703, 294 89, 294 8623, E04B 138

Patent

active

058990437

ABSTRACT:
The invention relates to a ductile-failure anchor (2, 32) for concrete elements (3, 39) used in construction. Each anchor (2, 32) includes a plug (4, 34) attached to a securing element (5, 5a or 55) and secured within each concrete element (3, 39). The securing element may included folded bars or a strap 5a. The securing element (5, 55) is placed about the plug (4, 34) and either secured in place (a first option) or held in position about the plug (4, 34) by supports 38 (second option). Each securing element (5, 55) includes at least two regions (10), each region (10) being of a pre-determined length and cross-sectional area. When the anchor (2, 32) is overloaded each region (10) fails in a ductile manner before the burst strength of any part of the concrete element (3, 39) is reached.

REFERENCES:
patent: 3705469 (1972-12-01), Eriksson
patent: 4017115 (1977-04-01), Holt et al.
patent: 4018470 (1977-04-01), Tye
patent: 4179151 (1979-12-01), Tye
patent: 4290638 (1981-09-01), Manning
patent: 4325575 (1982-04-01), Holt et al.
patent: 5660020 (1997-08-01), Reay
patent: 5671582 (1997-09-01), Reay

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