Anchoring means for wall braces

In a bracing system for tilt-up wall slabs including a floor slab-engaging foot plate to which a tilt-up brace is pivotally attached, the combination with said foot plate of a cylindrical bore formed in a floor slab and extending fully therethrough, an aperture in said foot plate in registry with said bore, a threaded anchor bolt having at least one side which is essentially flat and unthreaded removably extending through said aperture and fully through said bore, said bolt having an abbreviated foot portion extending laterally into underlying relation to the floor slab, the horizontal dimension of said bolt taken through said foot portion being somewhat less than the diameter of said bore to enable emplacement of said bolt through said bore and removal of said bolt therefrom, an anchor bolt-wedging spike removably extending fully through said bore and against said essentially flat and unthreaded side of the bolt to maintain said bolt to one side of said bore and to maintain said foot portion in underlying relation to the floor slab, said spike having a right-angled head portion at its upper end adapted to engage the upper surface of the floor slab and to be disposed within said aperture of said foot plate, and a nut bearing against the foot plate in removably threaded engagement with said anchor bolt and operable while in place to prevent the removal of said spike from said aperture and said bore.