Static structures (e.g. – buildings) – Assembled in situ-type anchor or tie – Socket type
Patent
1977-04-01
1978-02-14
Braun, Leslie
Static structures (e.g., buildings)
Assembled in situ-type anchor or tie
Socket type
52225, 52684, 52707, E04B 141
Patent
active
040731146
ABSTRACT:
An insert assembly adapted to be imbedded within a concrete beam structure with portions exposed at a surface of the beam structure so as to allow equipment such as piping, conduit, cable supports and the like to be attached to the insert assembly and, thus, supported by the beam structure. The insert assembly includes a generally U-shaped channel section to which the aforementioned equipment may be secured, a plurality of pairs of anchor members attached to and extending upwardly from the channel section, and a plurality of spring members attached to and between the pairs of anchor members. In the construction of a concrete beam structure, the insert assembly is placed within and against the formwork for the concrete beam structure and an elongated reinforcing member such as a cable or rod is placed across the spring members. The reinforcing member is then placed under tension, causing the spring members to deflect downwardly whereby forces are directed downwardly toward the channel section and the formwork. These forces serve to firmly retain the insert assembly in position within and against the formwork. After the reinforcing member has been placed in tension, concrete mix is poured into the formwork. After the mix has hardened, the formwork is removed so as to produce the finished pre-stressed concrete beam structure having the insert assembly imbedded therein.
REFERENCES:
patent: 1241827 (1917-10-01), Davis
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patent: 3289379 (1966-12-01), Watts
patent: 3813834 (1974-06-01), Davis, Jr.
Braun Leslie
Keay David M.
O'Malley Norman J.
Unistrut Corporation
Xiarhos Peter
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