Prefabricated structural element for buildings

Abstract

The invention relates to a prefabricated construction element for buildings in prefabricated construction, comprising a core element ( 10 ) and at least one reinforcement element ( 12 ). In order to absorb high tensile and transverse forces without the danger of developing cracks, the reinforcement element is configured as a flat material element ( 12 ) from fiber-reinforced plastic that is fixated on a lateral face ( 20 ) of the core element ( 10 ) in a form-fit and/or a material fit.

1 . Prefabricated structural element, comprising: 
 a core element; and    at least one reinforcing piece that carries tensile forces,    wherein the reinforcing piece is formed as a flat stock piece made from fiber-reinforced plastic that is fixed to a long face of the core element form-fittingly or by using a joining substance;    wherein the flat stock piece has a plurality of projecting knob-like anchoring members on one side that are engaged throughout the core element, through openings in the long face, and is anchored therein form-fittingly; and    wherein the prefabricated structural element is utilized in a wall element, ceiling element, or support for prefabricated buildings.    
   
   
       2 . Prefabricated structural element as in  claim 1 , wherein the flat stock piece has a plastic binder matrix and a fiber fabric or crossply embedded therein.  
   
   
       3 . Prefabricated structural element as in  claim 1 , wherein the flat stock piece is adhesively affixed over an extensive area, to a long face of the core element.  
   
   
       4 . Prefabricated structural element as in  claim 1 , wherein the core element is selected from the group consisting of concrete, lightweight concrete, cellular concrete, or gypsum.  
   
   
       5 . Prefabricated structural element as in  claim 1 , wherein the anchoring members are embedded in the core element.  
   
   
       6 . Prefabricated structural element as in  claim 1 , wherein both long faces of the core element have the flat stock piece made from fiber-reinforced plastic thereon.  
   
   
       7 . Prefabricated structural element as in  claim 2 , wherein the plastic binder matrix consists of a thermosetting plastic from the group consisting of epoxy resin, polyester resin, and vinyl resin.  
   
   
       8 . Prefabricated structural element as in  claim 2 , wherein the plastic binder matrix consists of a thermoplastic from the group consisting of polyamide, polymethylmethacrylate, polyphenylene sulfide, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyetherimide, styrene polymer, and polyetheretherketone.  
   
   
       9 . Prefabricated structural element as in  claim 1 , wherein the fibers of the flat stock piece are selected from the group consisting of carbon fibers, glass fibers, aramid fibers, polyethylene fibers, basalt fibers, and natural fibers.  
   
   
       10 . Prefabricated structural element as in  claim 1 , further comprising several reinforcing pieces transversely interspersed in the core element, with widened ends of which fit flush against long faces of the core element and are bonded to the flat stock piece using a joining substance.  
   
   
       11 . Prefabricated structural element as in  claim 10 , wherein the reinforcing piece has a double-T shape.  
   
   
       12 . Prefabricated structural element as in  claim 9 , wherein the reinforcing pieces are made of metal or fiber-reinforced polymer material.  
   
   
       13 . Reinforcing piece, comprising: 
 a flat stock piece on which projecting knob-like anchoring members are formed on one side, wherein the reinforcing piece is utilized in a wall element, ceiling element or support for prefabricated buildings.    
   
   
       14 . Reinforcing piece as in  claim 13 , wherein the flat stock piece is formed as a sheet, film, or grid element.  
   
   
       15 . Method for manufacturing reinforcing pieces for prefabricated structural elements for buildings, comprising: 
 soaking a fiber fabric or crossply with a binder,    heating the fiber fabric or crossply to a predetermined temperature in a continuous manner, and    cooling and simultaneously pressing the fiber fabric or crossply to form the flat stock piece, wherein during the manufacturing process, knob-like anchoring members are pressed out to protrude from the flat stock piece.    
   
   
       16 . Prefabricated structural element as in  claim 3 , wherein the flat stock piece is adhesively affixed with an epoxy resin adhesive.  
   
   
       17 . Prefabricated structural element as in  claim 5 , wherein the anchoring members are cast integral within the core element.  
   
   
       18 . Prefabricated structural element as in  claim 10 , wherein the joining substance is an adhesive.  
   
   
       19 . Prefabricated structural element as in  claim 12 , wherein the metal comprises aluminum or steel.