Reinforcing device

Abstract

The invention relates to a reinforcing device for supporting structures, that comprises a lamellar structure that runs into an anchoring device. Said lamellar structure is composed of a plurality of separate or separable individual layers between which intermediate layers are disposed at least in the zone of the anchoring device. The invention also relates to a method for producing such a reinforcing device and to a method for the reconstruction and/or reinforcement of edifices on the basis of such a reinforcing device. Preferably the lamellar structure is provided with carbon-fiber reinforced plastic lamellae (CFK) as the individual layers which are imbedded in a thermoplastic matrix. Preferably the individual layers of the lamellar structure are based on a thermoplastic conventional plastic material and additionally have interposed fabric inserts of metal plates as the intermediate layers, most preferably a bidirectionally oriented fabric, especially a bidirectionally oriented aramide fiber fabric.

1 . A reinforcing device for supporting structures, comprising a lamellar structure that runs into an anchoring device, wherein said lamellar structure is composed of a plurality of individual layers, and wherein intermediate layers are disposed between the individual layers in the zone of the anchoring device.  
     
     
         2 . The reinforcing device in accordance with  claim 1 , characterised in that each end of the lamellar structure runs into an anchoring device.  
     
     
         3 . The reinforcing device in accordance with  claim 1 , characterised in that the lamellar structure is provided with carbon-fiber reinforced plastic lamellae (CFK) as the individual layers.  
     
     
         4 . The reinforcing device in accordance with  claim 1 , characterised in that the individual layers of the lamellar structure are imbedded in a thermoplastic matrix.  
     
     
         5 . The reinforcing device in accordance with  claim 1 , characterised in that the individual layers of the lamellar structure are based on a thermoplastic conventional plastic material.  
     
     
         6 . The reinforcing device in accordance with  claim 1 , characterised in that fabric inserts or metal plates are interposed between the individual layers of the lamellar structure, as the intermediate layers.  
     
     
         7 . The reinforcing device in accordance with  claim 1 , characterised in that the anchoring device comprises a plurality, preferably two, of hollow body segments that spatially surround the lamellae ends.  
     
     
         8 . The reinforcing device in accordance with  claim 1 , characterised in that the anchoring device comprises at least one axially-adjustable cylinder, preferably at least one cylinder mounted so that it can rotate in an axial direction, preferably by made of steel, or most preferably made of a fiber-reinforced plastic material, and fitted with a set screw if necessary.  
     
     
         9 . The reinforcing device in accordance with  claim 1 , characterised in that the anchoring device comprises a grip head that can preferably be adjusted and locked with the help of an axially-driven threaded rod.  
     
     
         10 . A procedure for the manufacture of a reinforcing device for connecting with an anchoring device, characterised in that the procedure involves the following steps: 
 (a) fanning out lamellae into a plurality of individual layers;    (b) interposing of a plurality of intermediate layers between the individual layers produced in accordance with (a) to form a lamellar structure;    (c) fusing the lamellar structure, preferably using the effects of heat and/or pressure, to produce a sandwich-like package; and    (d) fixing the lamellar structure to the anchoring device, preferably with the help of a suitable clamping device.    
     
     
         11 . A procedure for the manufacture of a reinforcing device for connecting with an anchoring device, characterised in that the procedure involves the following steps: 
 (a) combining a plurality of individual layers in a lamellar structure with a plurality of intermediate layers, preferably to form a lamellar structure with the individual and intermediate layers arranged in an alternating manner;    (b) fusing the lamellar structure, preferably using the effects of heat and/or pressure, to produce a sandwich-like package; and    (c) fixing the lamellar structure to the anchoring device.    
     
     
         12 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that the procedure is provided with an additional step, of increasing the cross-section of the lamellar structure in the area of the connection with the anchoring device by the inclusion of additional individual layers, and/or intermediate layers. said individual and/or intermediate layers preferably being included in an alternating manner in the lamellar structure.  
     
     
         13 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that each end of the lamellar structure runs into an anchoring device.  
     
     
         14 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that the lamellar structure is provided with carbon-fiber reinforced plastic lamellae (CFK) as individual layers.  
     
     
         15 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that the individual layers of the lamellar structure are imbedded in a thermoplastic matrix.  
     
     
         16 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that the individual layers of the lamellar structure are based on a thermoplastic conventional plastic material.  
     
     
         17 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that fabric inserts or metal plates are arranged as the intermediate layers between the individual layers of the lamellar structure.  
     
     
         18 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that the anchoring device comprises a plurality, preferably two, of hollow body segments that spatially surround the lamellae ends.  
     
     
         19 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that the anchoring device comprises at least one axially-adjustable cylinder, preferably at least one cylinder mounted so that it can rotate in an axial directions, wherein the cylinder is preferably made of steel, or is most preferably made of a fiber-reinforced plastic material, and is fitted with a set screw if necessary.  
     
     
         20 . The procedure for the manufacture of a reinforcing device in accordance with  claim 10 , characterised in that the anchoring device comprises a grip head that can preferably be adjusted and locked with the help of an axially-driven threaded rod.  
     
     
         21 . The procedure in accordance with  claim 10 , characterised in that the reinforcing device is fitted to at least one of the supporting construction elements of a structure.  
     
     
         22 . The reinforcing device according to  claim 1  wherein the supported structures comprise construction elements based on concrete, and particularly bridge constructions, and wherein the reinforcing device is used to reinforce and/or renovate the supported structures.  
     
     
         23 . The reinforcing device in accordance with  claim 6 , characterised in that the fabric inserts comprise a bidirectionally oriented fabric.  
     
     
         24 . The reinforcing device in accordance with  claim 6 , characterised in that the fabric inserts comprise a bidirectionally oriented aramide fiber fabric.  
     
     
         25 . The reinforcing device in accordance with  claim 7 , characterised in that the hollow body segments are connected together with the help of cylinder bores running through the whole lamellar structure.  
     
     
         26 . The procedure for the manufacture of a reinforcing device in accordance with  claim 17 , characterised in that the fabric inserts comprise a bidirectionally oriented fabric.  
     
     
         27 . The procedure for the manufacture of a reinforcing device in accordance with  claim 17 , characterised in that the fabric inserts comprise a bidirectionally oriented aramide fiber fabric.  
     
     
         28 . A reinforcing device for supporting a structure, comprising a lamellar structure connected to an anchoring device, wherein the anchoring device is connected to the structure to be supported, and wherein the lamellar structure is comprised of a plurality of individual layers, wherein the plurality of individual layers are comprised of carbon-fiber reinforced plastic, and wherein one or more intermediate layers are disposed between one or more adjacent pairs of the individual layers  
     
     
         29 . The reinforcing device according to  claim 28 , wherein the individual layers are parallel to each other.  
     
     
         30 . The reinforcing device according to  claim 28 , wherein the intermediate layers are disposed between the individual layers in the area of the anchoring device.  
     
     
         31 . The reinforcing device according to  claim 28 , wherein the cross-sectional area of the lamellar structure is enlarged in the area of the anchoring device.