Precast Concrete to Foundation Connection

Abstract

The connecting system of the invention eliminates the need to prelocate embedded bolts or other embedded elements within the concrete foundation before it is cast and eliminates the need to align the panel embedments with the foundation embedments and also eliminates the need to utilize threaded anchor bolts with nuts.

1 . A precast concrete to foundation connection for securing a precast concrete wall panel to a supporting concrete foundation, comprising an inclined tubular cavity forming element embedded in the wall panel, a deformed rod adapted to extend through said cavity forming member and into an inclined hole formed within the foundation, a pourable grout that encases the deformed rod and fills the hole formed in the foundation and the tubular cavity forming element thus securing the wall panel to the foundation upon curing of the grout. 
     
     
         2 . A precast concrete to foundation connection as defined in  claim 1  and including a plurality of concrete anchor rods welded to said tubular cavity forming element 
     
     
         3 . A precast concrete to foundation connection as defined in  claim 1  and including a plurality of concrete anchor straps welded to said tubular cavity forming element. 
     
     
         4 . A precast concrete to foundation connection as defined in  claim 1  wherein said deformed rod is not deformed in the middle section of the rod. 
     
     
         5 . A precast concrete to foundation connection as defined in  claim 1  wherein said tubular cavity forming element is tapered to a smaller size at one end. 
     
     
         6 . A precast concrete to foundation connection as defined in  claim 1  and including a void forming element at the accessible face of the panel. 
     
     
         7 . A deformed rod as defined in  claim 4  wherein said middle section of the rod is coated with a bond inhibiting coating. 
     
     
         8 . A precast concrete to foundation connection as defined in  claim 3  wherein said anchoring straps have holes for mounting onto the casting forms. 
     
     
         9 . A method of securing a precast concrete wall panel to a supporting concrete foundation, comprising the steps of forming at least one rigid connector with a tubular cavity forming portion, positioning the connector adjacent a horizontal bottom form for the wall panel, casting the wall panel and embedding the connector within the wall panel with the tubular cavity forming portion extending to a side surface of the wall panel, transporting and erecting the wall panel to a vertical position and positioning the wall panel on the foundation, drilling an inclined hole into the foundation through the tubular cavity forming portion of the connector , inserting within the hole in the foundation a deformed rod having an upper end portion extending into the tubular cavity forming portion of the connector, and encasing the deformed rod in grout, and filling the hole and tubular cavity portion of the connector with grout to tie the embedded connector and the wall panel to the foundation.