B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
72/98
B28B 1/14 (2006.01) E04B 5/23 (2006.01) E04C 3/20 (2006.01)
Patent
CA 1179519
PRECAST BUILDING ELEMENT AND METHOD ABSTRACT OF THE DISCLOSURE A precast beam for use in constructing a building includes a substantially flat middle portion extending the length of the beam and upstanding sidewalls on either side of the middle portion defining a trough which also extends the length of the beam; the trough is open at each end of the beam and the beam is provided with tensioned reinforcing rods in the middle portion along its length and a plurality of stress relieving slits spaced along the upstanding sidewalls to prevent camber developing; the reinforcing rods of the beam protrude a selected distance from the ends of the beam; a method of construction is disclosed where forms for the vertical components are set in place, the precast beam is then set in place before the cementitious material is poured into the forms for the vertical components whereby the installation and proper orientation of the reinforcing rods of the precast beam and the flooring as well as the reinforcing rods of the vertical components can be obtained.
383925
Construction Products Research And Development Corporation
Goudreau Gage Dubuc
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