Patent ID: 7700024
Filing Date: 2010-04-20
Classification: E04B,E04C,E04G

Abstract:
1. A form for fabricating a tilt-up concrete wall panel comprising: a) a horizontally placed thin sheet of rigid material of sufficient size to be the permanent bottom form for said concrete wall panel, wherein said thin sheet has a plurality of downward corrugations that extend from the top to the bottom of said concrete wall panel; b) a plurality of side frame members closing the edges of said thin sheet and working as side forms c) a plurality of C shape channels spaced evenly at the bottom of said thin sheet and with web sides connected to said corrugations, whereby said C shape channels provide lateral stiffness to said wall panel; d) a plurality of thermal insulation boards attached to the back of said corrugations; e) a plurality of fasteners connecting said thin sheet to said rigid insulation boards, wherein each said fastener comprises an elongated stud, an enlarged head and a sharp tip, each of said fasteners penetrating half of its length into said insulation board, whereby said fasteners can bond with concrete and attach to said insulation boards at the same time; and f) a plurality of threaded bolts and nuts connecting said thin sheet to said C shape channels, wherein each said threaded bolt has an elongated stud, installed with threaded end proximate said C shape channel and two nuts threaded on and another end bonded with concrete.