Static structures (e.g. – buildings) – With component having discrete prestressing means – Beam – girder – or truss construction
Patent
1977-06-29
1978-10-03
Perham, Alfred C.
Static structures (e.g., buildings)
With component having discrete prestressing means
Beam, girder, or truss construction
52378, 52410, 52576, 52687, E04B 116, E04B 228
Patent
active
041176391
ABSTRACT:
A reinforced insulated concrete building panel has an inner layer of concrete and an outer layer of concrete, with a layer of insulating material sandwiched therebetween. Shear connectors are embedded in the layer of concrete and extend from the outer layer through the layer of insulation and into the inner layer to prevent delamination of the panel during handling. The shear connectors have projecting portions defining a depth gauge to indicate when the connector has been inserted a proper distance into the panel during construction of the panel. The method of constructing the panel comprises the steps of casting one of the layers of concrete and immediately thereafter placing the layer of insulation thereover and then inserting the shear connectors through the insulation and into the cast layer of concrete until the depth gauge portion of the shear connectors engage the insulation, thereby accurately positioning the shear connectors, and thereafter casting a second layer of concrete on top of the layer of insulation.
REFERENCES:
patent: 1511658 (1924-10-01), Crowe
patent: 2630615 (1953-03-01), Moore
patent: 2634603 (1953-04-01), Byars et al.
patent: 2653469 (1953-09-01), Callan
patent: 3237357 (1966-03-01), Hutchings
patent: 3295278 (1967-01-01), Muhm
patent: 3438161 (1969-04-01), Koch
Journal of the American Concrete Institute, Sep. 1952, pp. 40-44.
Paton W. Donald
Steenson Thomas William
Butler Manufacturing Company
Perham Alfred C.
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