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US 4,903,448 AGranted
Retractable hangers for mounting precast concrete beams and the like in buildings
AssigneeKabo-Karr Corporation of California
InventorLloyd A. Compton
Life of this patent
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AssigneeKabo-Karr Corporation of California
InventorLloyd A. Compton
Estimating the term…
A precast concrete beam is supported at its end by columns via the agency of retractable hanger arrangements preferably located in cavities at the upper ends of the beam. Each hanger arrangement includes a hanger member which is movable in the cavity from a retracted position within the cavity through a hanger eye device to an extended position in which the hanger member engages the eye device at an upper central portion of the hanger member and in which the hanger member extends in cantilever manner into a recess defined in the adjacent column. In its extended position, the hanger member has its opposite ends supported on bearing plates located in the cavity and in the recess. The hanger eye device is structurally tied into the beam for carriage and transfer to the beam of the support forces for the beam and of forces arising from loads applied to the beam in use.
A hanger arrangement for load transferring connection of a reinforced concrete beam and the like to a reinforced concrete column and the like, comprising a reinforced concrete beam and, at least at one end of the beam, a hanger member movable in a cavity in an end portion of the beam between a retracted position in which the hanger member is disposed within the cavity and an extended position in which a column end portion of the hanger member extends in cantilever manner from the cavity and the end of the beam for bearing upon a selected feature defined in a recess in a column to which the beam is connectible,
A reinforced concrete beam comprising a cavity in an upper end surface of the beam, the cavity being open to an end surface of the beam and being elongated substantially in the direction of the length of the beam, the cavity having a bottom surface, a structural eye device extending within the cavity adjacent the beam end surface from the cavity bottom surface and disposed generally in a plane oriented transverse to the length of the beam, and load transfer means connected to the eye device and disposed within the beam for transfer to the beam of loads applied in use of the beam according to a design philosophy which regards the eye device as a principal support for the beam in use.
A method for supporting an end of a reinforced concrete beam by a column and the like in use of the beam in a structure of which the beam is a component, the method comprising the steps of:
Dependencies are inferred from the claim text.