Expansion-contraction joint

Static structures (e.g. – buildings) – Including design feature accommodating dimensional variation...

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Details

52396, 14 165, 404 68, E04B 168, E04B 198, E01D 1906

Patent

active

039746143

ABSTRACT:
An expansion-contraction joint for coupling a pair of relatively movable members separated transversely one from the other. The joint accommodates limited relative displacements of such members of a type that may be induced by thermal changes therein, seismic disturbances, shifting of certain underlying soils owing to changes in the moisture content thereof, etc. A typical environmental use for the joint is between adjacent concrete pads such as those forming the plaza about a multiple-story building, and those forming the floor surfaces of relatively long or sprawling buildings. The joint includes a plurality of elongated, longitudinally extending runners that are transversely spaced and have resilient pads interposed therebetween to which they are bonded to form a self-sustaining sandwich-type integer therewith and includes a sealant layer interposed therebetween on top of the transversely spaced resilient pads. The joint further includes support structure adapted to be disposed within the space between such relatively movable members, and the support structure comprises a plurality of components certain groups of which are respectively carried by the spaced members in a manner that will not inhibit relative movement thereof. The sandwich-type runner-and-pad composition is mounted with respect to the support structure so as to be carried thereby in a manner completely filling the space between such relatively movable members.

REFERENCES:
patent: 3099110 (1963-07-01), Spaight
patent: 3113493 (1963-12-01), Rinker
patent: 3119204 (1964-01-01), Williams
patent: 3165986 (1965-01-01), Hirst et al.
patent: 3165987 (1965-01-01), Hirst et al.
patent: 3218008 (1965-11-01), Harris
patent: 3245328 (1966-04-01), Fassbinder
patent: 3344720 (1967-10-01), Hallock
patent: 3797188 (1974-03-01), Mansfeld

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