Device for reinforcing a structure and a method for making thereof

Abstract

Rebar for reinforcing a concrete includes a core, a rib layer, and a cover layer. The rib layer is placed over at least a portion of the core and the cover layer is placed over at least a portion of the rib layer. A method for making the rebar for reinforcing a concrete includes providing a core, placing a rib layer over at least a portion of the core, and placing a cover layer over at least a portion of the rib layer.

What is claimed is:  
     
         1 . A device for reinforcing a structure, the device comprising: 
 a core;    a rib layer over at least a portion of the core; and    a cover layer is placed over at least a portion of the rib layer.    
     
     
         2 . The device as set forth in  claim 1  wherein the core comprises a plurality of core strands which extend substantially along a first axis.  
     
     
         3 . The device as set forth in  claim 2  wherein one of the core strands is surrounded by the remaining core strands.  
     
     
         4 . The device as set forth in  claim 1  wherein the rib layer comprises at least one rib strand.  
     
     
         5 . The device as set forth in  claim 1  wherein the rib layer comprises at least one rib tape.  
     
     
         6 . The device as set forth in  claim 1  wherein the rib layer is wrapped around the core in a crisscrossed configuration.  
     
     
         7 . The device as set forth in  claim 6  wherein the rib layer in the crisscrossed configuration intersects itself at an angle of about forty-five degrees with respect to a first axis which is substantially parallel with the core.  
     
     
         8 . The device as set forth in  claim 1  wherein the cover layer comprises cover strands which surround the at least a portion of the rib layer and extend along in substantially the same direction as the core.  
     
     
         9 . The device as set forth in  claim 1  wherein the core, the rib layer and the cover layer each has a different modulus of elasticity.  
     
     
         10 . The device as set forth in  claim 1  wherein at least one of the core, the rib layer, and the cover layer is twisted to provide a different modulus of elasticity.  
     
     
         11 . A method for making a device for reinforcing a structure, the method comprising: 
 providing a core;    placing a rib layer over at least a portion of the core; and    placing a cover layer over at least a portion of the rib layer.    
     
     
         12 . The method as set forth in  claim 11  wherein providing the core further comprises providing a plurality of core strands which are adjacent each other and extend substantially along a first axis.  
     
     
         13 . The method as set forth in  claim 12  further comprising surround one of the plurality of core strands with the remaining plurality of core strands.  
     
     
         14 . The method as set forth in  claim 11  wherein the rib layer comprises at least one rib strand.  
     
     
         15 . The method as set forth in  claim 11  wherein the rib layer comprises at least one rib tape.  
     
     
         16 . The method as set forth in claim  111  wherein placing the rib layer further comprises wrapping the rib layer around the core in a crisscrossed configuration.  
     
     
         17 . The method as set forth in  claim 16  wherein the rib layer in the crisscrossed configuration intersects itself at an angle of about forty-five degrees with respect to a first axis which is substantially parallel with the core.  
     
     
         18 . The method as set forth in  claim 11  wherein placing the cover layer further comprises placing cover strands around at least a portion of the rib layer, each of the cover strands extending along in substantially the same direction as the core.  
     
     
         19 . The method as set forth in  claim 11  wherein the core, the rib layer and the cover layer each has a different modulus.  
     
     
         20 . The method as set forth in  claim 11  wherein at least one strand of the core, the rib layer, or the cover layer is twisted to provide a different modulus for the core, the rib layer, or the cover layer.