Reinforcing body made of fiber-reinforced plastic

Abstract

The invention relates to a reinforcing body ( 1 ) for buildings, in particular for buildings made of concrete, said reinforcing body comprising a plurality of reinforcing rods ( 2 a , 2 b ) which are connected together by connecting agents ( 5 ) at connecting points ( 4 ) and which are made of fiber-reinforced plastic, said connecting agents ( 5 ) comprising connection fibers ( 6 ) which are embedded in a plastic matrix ( 7 ) and which are wound several times about the reinforcing rods ( 2 a , 2 b ) at the connecting points ( 4 ).

1 . A reinforcing body ( 1 ) for buildings, in particular for buildings made of concrete, said reinforcing body comprising a plurality of reinforcing rods ( 2   a ,  2   b ) which are connected together by connecting agents ( 5 ) at connecting points ( 4 ) and which are made of fiber-reinforced plastic, said connecting agents ( 5 ) comprising connection fibers ( 6 ) which are embedded in a plastic matrix ( 7 ),
 characterized in that the connection fibers ( 6 ) are wound several times about the reinforcing rods ( 2   a ,  2   b ) at the connecting points ( 4 ) in such a way that, when a tensile or compressive stress acts transversally to the longitudinal axis of a first reinforcing rod ( 2   a ,  2   b ) in the longitudinal direction of a second reinforcing rod ( 2   b ,  2   a ), a connecting force S which satisfies the equation S>0.3*A S *R B  is achieved for a single connection point ( 4 ), where A S  describes the cross-sectional area of the second reinforcing rod ( 2   b ,  2   a ) and R B  describes the permissible working stress of the second reinforcing rod ( 2   b ,  2   a ).   
   
   
       2 . The reinforcing body of  claim 1 , characterized in that the connection fibers ( 6 ) are wound in different directions about a connection point ( 4 ). 
   
   
       3 . The reinforcing body of  claim 1 , characterized in that the connection fibers ( 6 ) at a reinforcing rod ( 2   a ,  2   b ) or at both reinforcing rods ( 2   a ,  2   b ) each intersect at least one point. 
   
   
       4 . The reinforcing body of  claim 1 , characterized in that the connection fibers ( 6 ) include glass fibers and/or aramide fibers and/or carbon fibers. 
   
   
       5 . The reinforcing body of  claim 1 , characterized in that the connection fibers ( 6 ) and/or the plastic in the plastic matrix ( 7 ) at the connecting points ( 4 ) consist of the same material as the fibers and/or plastic in the reinforcing rods ( 2   a ,  2   b ). 
   
   
       6 . The reinforcing body of  claim 1 , characterized in that the reinforcing rods ( 2   a ,  2   b ) have external profiling which is specifically embodied as a threaded profile or preferably in the form of a screw thread. 
   
   
       7 . The reinforcing body of  claim 1 , characterized in that the reinforcing rods ( 2   a ,  2   b ) are arranged at least substantially perpendicular to one another. 
   
   
       8 . The reinforcing body of  claim 1 , characterized in that the reinforcing rods ( 2   a ,  2   b ) are arranged at least substantially two-dimensionally in the form of a mat ( 1 ,  10 ). 
   
   
       9 . The reinforcing body of  claim 8 , characterized in that all the reinforcing rods ( 2   a ,  2   b ) extend in a straight line, wherein a first group of reinforcing rods ( 2   a ) extends in a first plane ( 3   a ) and wherein a second group of reinforcing rods ( 2   b ) extends in a second plane ( 3   b ) running parallel to the first plane ( 3   a ). 
   
   
       10 . The reinforcing body of  claim 1 , characterized in that the reinforcing rods ( 2   a ,  2   b ) form a three-dimensional reinforcing body ( 11 ,  12 ), in particular a reinforcing pile ( 11 ) or a reinforcing cage ( 12 ). 
   
   
       11 . The reinforcing body of  claim 10 , characterized in that at least individual reinforcing rods ( 2   a ,  2   b ) are curved in sections thereof or throughout. 
   
   
       12 . The reinforcing body of  claim 11 , characterized in that a plurality of reinforcing rods ( 2   a ) are embodied in circular shape and are connected on the inside and/or the outside to a plurality of reinforcing rods ( 2   b ) extending at least approximately in a straight line to form a tubular reinforcing body ( 11 ). 
   
   
       13 . The reinforcing body of  claim 11 , characterized in that a plurality of reinforcing rods ( 2   a ) are bent at an angle at least in sections thereof and are embodied in the shape of a square and are connected on the inside and/or on the outside to a plurality of reinforcing rods ( 2   b ) extending at least approximately in a straight line to form a cuboidal reinforcing body ( 12 ). 
   
   
       14 . The reinforcing body of  claim 1 , characterized in that the plastic matrix ( 7 ) is fully hardened with the connection fibers ( 6 ) embedded therein. 
   
   
       15 . The reinforcing body according to  claim 1 , characterized in that said reinforcing body is embodied as a prepreg, the plastic matrix ( 7 ) with the connection fibers ( 6 ) embedded therein being pre-hardened to a certain degree such that a certain degree of mobility is provided at the connecting points ( 4 ), wherein said plastic matrix ( 7 ) can be fully hardened by the application of heat.