Protective Panel Assembly And Method For Repairing Such A Protective Panel Assembly

Abstract

The invention relates to a protective panel assembly and to a method for repairing an impact hole in the protective panel assembly. The protective panel assembly has three textile-reinforced concrete panels which are connected to one another via connecting elements to form a unit. The textile-reinforced concrete panels form an outer panel, an inner panel and an intermediate panel. Arranged between the outer panel and the intermediate panel is at least one fiber panel comprising fiber bundles of glass and/or aramid fibers incorporated in a synthetic matrix. An intermediate space exists between the intermediate panel and the inner panel. The intermediate space can be filled with air and/or a solid filler material which can be plastically and/or elastically deformed. Additional panels or layers can be omitted.

1 . A protective panel assembly ( 20 ) for protecting against gunfire and/or explosions, the assembly comprising:
 at least three textile-reinforced concrete panels ( 21 ) which form an outer panel ( 22 ), an inner panel ( 23 ) and an intermediate panel ( 24 ),   at least one fiber panel ( 50 ) which comprises synthetic fiber bundles ( 51 ) embedded in a synthetic matrix ( 53 ), wherein the at least one fiber panel ( 50 ) is arranged between the outer panel ( 22 ) and the intermediate panel ( 24 ),   a plurality of connecting elements ( 40 ) having a first end ( 41 ) embedded in a concrete matrix ( 31 ) of one of the textile-reinforced concrete panels ( 21 ) and having a second end ( 42 ) embedded in a concrete matrix ( 31 ) of another of the textile-reinforced concrete panels ( 21 ),   wherein the inner panel ( 23 ) is arranged at a distance from the intermediate panel ( 24 ) so as to form an intermediate space ( 57 ).   
     
     
         2 . The protective panel assembly according to  claim 1 , wherein the at least one fiber panel ( 50 ) has opposing sides and abuts with one side directly against the outer panel ( 22 ) and with the other side directly against the intermediate panel ( 24 ). 
     
     
         3 . The protective panel assembly according to  claim 1 , wherein one of the plurality of connecting elements ( 40 ) is embedded with the first end ( 41 ) thereof in a concrete matrix ( 31 ) of the outer panel ( 22 ) and extends past the at least one fiber panel ( 50 ). 
     
     
         4 . The protective panel assembly according to  claim 1 , wherein one of the plurality of connecting elements ( 40 ) is embedded with the first end ( 41 ) thereof in a concrete matrix ( 31 ) of the outer panel ( 22 ) and does not pass through an outer side ( 25 ) of the protective panel assembly ( 20 ). 
     
     
         5 . The protective panel assembly according to  claim 1 , wherein one of the plurality of connecting elements ( 40 ) is embedded with its second end ( 42 ) in a concrete matrix ( 31 ) of the inner panel ( 23 ) and does not pass through an inner side ( 26 ) of the protective panel assembly ( 20 ). 
     
     
         6 . The protective panel assembly according to  claim 1 , wherein at least one of the plurality of connecting elements ( 40 ) has a connecting web ( 44 ) which connects the first end ( 41 ) to the second end ( 42 ) thereof and completely passes through the intermediate panel ( 24 ). 
     
     
         7 . The protective panel assembly according to  claim 6 , wherein the connecting web ( 44 ) includes at least one section ( 44   a ,  44   b ) that extends in an inclined manner by an angle of inclination (α, α 1 , α 2 ) relative to a plane (E) that is oriented at a right angle to at least one of the outer panel ( 22 ), the intermediate panel ( 24 ), or the inner panel ( 23 ). 
     
     
         8 . The protective panel assembly according to  claim 1 , wherein the at least one of the plurality of connecting elements ( 40 ) has a transverse web ( 43 ) at at least one of the first end ( 41 ) and the second end ( 42 ). 
     
     
         9 . The protective panel assembly according to  claim 7 , wherein the at least one of the plurality of connecting elements ( 40 ) has a transverse web ( 43 ) at at least one of the first and second ends ( 41 ,  42 ), and the connecting web ( 44 ) is configured to be weaker than the transverse web ( 43 ). 
     
     
         10 . The protective panel assembly according to  claim 1 , wherein the plurality of connecting elements ( 40 ) include at least one first connecting element ( 40   a ) and at least one second connecting element ( 40   b ) which are arranged in an offset manner with respect to one another in at least one of two spatial directions (x, y) that define a plane arranged parallel to the outer panel ( 22 ). 
     
     
         11 . The protective panel assembly according to  claim 10 , wherein the at least one first connecting element ( 40   a ) connects the outer panel ( 22 ) to the intermediate panel ( 24 ), and the at least one second connecting element ( 40   b ) connects the intermediate panel ( 24 ) to the inner panel ( 23 ). 
     
     
         12 . The protective panel assembly according to  claim 1 , wherein the plurality of connecting elements ( 40 ) respectively comprise fiber bundles ( 45 ) embedded in a synthetic matrix. 
     
     
         13 . The protective panel assembly according to  claim 1 , wherein individual ones of the textile-reinforced concrete panels ( 21 ) have at least one textile layer ( 30 ) which is formed by a mesh-type fabric composed of fiber bundles ( 32 ). 
     
     
         14 . The protective panel assembly according to  claim 13 , wherein the intermediate panel ( 24 ) has at least three textile layers ( 30 ) including the at least one textile layer which are embedded at a distance from one another in a concrete matrix ( 31 ) of the intermediate panel ( 24 ). 
     
     
         15 . The protective panel assembly according to  claim 13 , wherein a number of textile layers ( 30 ) in the intermediate panel ( 24 ) is greater than in the outer panel ( 22 ) and/or in the inner panel ( 23 ). 
     
     
         16 . The protective panel assembly according to  claim 1 , wherein the intermediate space ( 57 ) is filled with a solid filler material ( 58 ). 
     
     
         17 . The protective panel assembly according to  claim 16 , wherein the filler material ( 58 ) is elastically and/or plastically deformable. 
     
     
         18 . A method for repairing a protective panel assembly ( 20 ) according to  claim 1  which has an impact hole ( 65 ) extending into the outer panel, the fiber panel, and the intermediate panel, said method comprising:
 filling an area of the impact hole ( 65 ) in the intermediate panel ( 24 ) with a resin ( 69 ), 
 inserting a replacement fiber panel piece ( 70 ) for the fiber panel ( 50 ) into the impact hole ( 65 ) in the existing fiber panel ( 50 ), 
 filling an area of the impact hole ( 65 ) in the outer panel ( 22 ) with a body filler ( 71 ).