Connection system and stiffening template

Abstract

A connection system for providing a construction joint between a first concrete component and a second concrete component, the connection system including a rebate former for forming a rebate in a first concrete component, wherein the rebate former has a backing, and the connection system further includes a plurality of anchors coupled to the backing and at least one stiffening template mounted to the backing to prevent or at least reduce sag of the rebate former.

1 . A connection system for providing a construction joint between a first concrete component and a second concrete component, the connection system comprising:
 a rebate former configured to form a rebate in a first concrete component, the rebate former having a backing;   a plurality of anchors coupled to the backing; and   at least one stiffening template mounted to the backing to prevent or at least reduce sag of the rebate former.   
     
     
         2 . The connection system of  claim 1 , wherein the rebate former is formed of sheet metal. 
     
     
         3 . The connection system of  claim 2 , wherein the backing is in the form of an elongated backing, the elongated backing having folded edges to a predefined depth. 
     
     
         4 . The connection system of  claim 1 , wherein the stiffening template defines an aperture to enable one of the anchors to pass through the stiffening template. 
     
     
         5 . The connection system of  claim 4 , wherein the aperture is round. 
     
     
         6 . The connection system of  claim 4 , wherein the aperture is square. 
     
     
         7 . The connection system of  claim 1 , wherein the stiffening template is arranged to be clamped to the backing by the anchor. 
     
     
         8 . The connection system of  claim 1 , wherein the stiffening template extends transversely across the backing. 
     
     
         9 . The connection system of  claim 1 , wherein the stiffening template is folded along opposite edges. 
     
     
         10 . The connection system of  claim 9 , wherein the folded edges of the stiffening template are oriented transversely to the backing. 
     
     
         11 . The connection system of  claim 4 , wherein the stiffening template defines a plurality of apertures that allow passage of a plurality of anchors through the stiffening template. 
     
     
         12 . The connection system of  claim 1 , wherein each of the anchors has an internal thread sized and shaped to receive an external thread of a reinforcing bar configured to reinforce the second concrete component. 
     
     
         13 . The connection system of  claim 1 , wherein the rebate former has folded ends. 
     
     
         14 . The connection system of  claim 1 , which includes a lid configured to cover an internal cavity of the rebate former defined by the backing and folded edges thereof. 
     
     
         15 . The connection system of  claim 1 , which includes a plurality of parallel rebate formers joined by an intermediate section. 
     
     
         16 . The connection system of  claim 1 , wherein the rebate former includes a cross strut extending across a width of an internal cavity of the rebate former. 
     
     
         17 . The connection system of  claim 1 , wherein the rebate former is dimpled on the backing and on folded edges thereof. 
     
     
         18 . The connection system of  claim 1 , which includes a stiffening template configured to reinforce the rebate former, the stiffening template including a plate having opposed folded edges and defining an aperture through one of the anchor can extend. 
     
     
         19 . The connection system of  claim 18 , wherein the stiffening template is configured to be oriented so that the folded edges of the stiffening template can rest against the backing.