Resilient finger joint for concrete slabs

Details Resilient finger joint for concrete slabs Resilient finger joint for concrete slabs

1991-10-02

1992-12-22

Scherbel, David A.

Static structures (e.g., buildings)

Relatively yieldable preformed separator

Separator inserted prior to or during pouring of two...

52573, 404 47, E04B 168

Patent

active

051725339

ABSTRACT:
A joint between adjacent concrete slabs for overcoming existing problems which occur due to large scale relative movement of adjacent concrete slabs which results from the slabs shrinking when aging. More specifically, a resilient finger joint for concrete slabs is provided which allows and adjusts for relative vertical movements of adjoining slabs with the joint including an arrangement for absorbing vibrations and impact loads encountered which result from traffic passing over the joint between adjacent slabs. The joint includes a plurality of fingers supported by a resilient bed. The fingers are positioned in staggered, interdigitated relation and each finger is associated with an anchor alongside of and partially overlapping one end of the adjacent finger with a pivot pin or shaft interconnecting the anchors and fingers with each finger including an end that is free of an opposing anchor but supported by the resilient bed. The anchors are retained in place by a bonding material which surrounds the anchor and bonds it to an adjoining concrete slab with the bonding material serving as a portion of a traffic bearing surface between the concrete slabs and the finger/anchor assembly.

REFERENCES:
patent: 1978283 (1934-10-01), Rein
patent: 2181018 (1939-11-01), Hughes et al.
patent: 3165986 (1965-01-01), Hirst et al.
patent: 3677145 (1972-07-01), Wattiez
patent: 4616954 (1986-10-01), Taga

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