Construction element for connecting in a low thermally-bridging manner a protruding external part to a building shell

Abstract

A construction element for connecting in a low thermally-bridging manner a protruding external part to a building shell, having a least one insulation member to be disposed between the protruding external part and the building shell and at least one integrally configured reinforcement element from fiber-reinforced plastics material formed as at least one tensile reinforcement element. The reinforcement element horizontally traverses the insulation member and is connectable to the external part and the building shell. The reinforcement element has a central portion which extends through the insulation member and projects therethrough, and at least in this projecting region on the radial external face of the said reinforcement element either is configured substantially smooth-walled, or at least in part has a casing, and in a region outside the insulation member has at least one first anchoring portion which on the radial external face thereof has a first surface profile, and between the central portion and the first anchoring portion has a second anchoring portion which has a second surface profile. These first and second surface profiles differ in terms of the geometric and/or material properties thereof.

1 . A construction element ( 1 ) for connecting in a low thermally-bridging manner a protruding external part (B) to a building shell (A), the construction element comprising:
 at least one insulation member ( 2 ) that is adapted to be disposed between the protruding external part (B) and the building shell (A);   at least one integrally configured reinforcement element ( 3 ) formed from fiber-reinforced plastics material that comprises at least one tensile reinforcement element, said reinforcement element ( 3 ) traversing the insulation member ( 2 ) substantially horizontal and transverse to a horizontal longitudinal extent of said insulation member ( 2 ) and being adapted to be connected to the external part (A) and the building shell (B);   wherein the reinforcement element ( 3 ) has a central portion ( 4 ) which extends through the insulation member ( 2 ) and projects with a projecting region in relation to the insulation member ( 2 ), and at least in said projecting region on a radial external face of said reinforcement element ( 3 ) either is configured so as to be substantially smooth-walled, or at least in part has a casing ( 8 ), and in a region outside the insulation member ( 2 ) includes at least one first anchoring portion ( 5 ) which on the radial external face thereof has a first surface profile; and   the reinforcement element ( 3 ) between the central portion ( 4 ) and the first anchoring portion ( 5 ) includes a second anchoring portion ( 6 ) which has a second surface profile, and the first surface profile and the second surface profile are different from one another in terms of at least one of geometric or material properties thereof.   
     
     
         2 . The construction element ( 1 ) as claimed in  claim 1 , wherein the first surface profile and the second surface profile are configured in a mutually independent manner as ribs ( 53 ,  54 ,  63 ,  64 ) that extend radially or as screw turns about a longitudinal axis of the reinforcement element. 
     
     
         3 . The construction element ( 1 ) as claimed in  claim 2 , wherein the ribs ( 53 ,  54 ) of the first surface profile and the ribs ( 63 ,  64 ) of the second surface profile differ in terms of at least one of a rib height (h), a rib spacing (b), a rib pitch (T), an inclination angle of rib flanks (a), or a rib shape, such that in an installed state of the construction element ( 1 ) between the building shell (A) and the protruding external part (B), in each case a mutually dissimilar bonding strength of the respective first anchoring portion ( 5 ) and of the second anchoring portion ( 6 ) with a material of the building shell that surrounds the anchoring portions ( 5 ,  6 ) and the protruding external part is effected. 
     
     
         4 . The construction element ( 1 ) as claimed in  claim 3 , wherein at least one of the rib height (h) or the rib spacing (b) in the first anchoring portion ( 5 ) is greater than in the second anchoring portion ( 6 ). 
     
     
         5 . The construction element ( 1 ) as claimed in  claim 3 , wherein the inclination angle of the rib flanks (a) in the first anchoring portion ( 5 ) is smaller than in the second anchoring portion ( 6 ). 
     
     
         6 . The construction element ( 1 ) as claimed in  claim 2 , wherein the central portion ( 4 ) and the ribs ( 53 ,  54 ,  63 ,  64 ) of at least one of the first anchoring portion ( 5 ) or the second anchoring portion ( 6 ) have substantially identical diameters. 
     
     
         7 . The construction element ( 1 ) as claimed in  claim 1 , wherein the first surface profile and the second surface profile are configured in a mutually independent manner as sand covers. 
     
     
         8 . The construction element ( 1 ) as claimed in  claim 7 , wherein the sand cover of the first surface profile and the sand cover of the second surface profile differ in terms of at least one of a sand composition, grain size, or grain shape, such that in an installed state of the construction element ( 1 ) mutually dissimilar bonding strengths of the respective first anchoring portion ( 5 ) and of the second anchoring portion ( 6 ) with the material of the building shell that surrounds the anchoring portions ( 5 ,  6 ) and the protruding external part are effected. 
     
     
         9 . The construction element ( 1 ) as claimed in  claim 8 , wherein the grain size of the sand cover in the first anchoring portion ( 5 ) is larger than in the second anchoring portion ( 6 ). 
     
     
         10 . The construction element ( 1 ) as claimed in  claim 1 , wherein at least one of the central portion ( 4 ), the first anchoring portion ( 5 ) or the second anchoring portion ( 6 ) have dissimilar diameters. 
     
     
         11 . The construction element ( 1 ) as claimed in  claim 1 , wherein the central portion ( 4 ) in the substantially horizontal direction projects beyond the insulation member ( 2 ) by a length L 3 , said length L 3  being two times to ten times a diameter d M  of the central portion ( 4 ) of the reinforcement element ( 3 ). 
     
     
         12 . The construction element ( 1 ) as claimed in  claim 1 , wherein a length L 2  of the second anchoring element ( 6 ) is two times to ten times a diameter d M  of the central portion ( 4 ) of the reinforcement element ( 3 ). 
     
     
         13 . The construction element ( 1 ) as claimed in  claim 1 , wherein a length L 1  of the first anchoring portion ( 5 ) is ten times to fifty times a diameter d M  of the central portion ( 4 ) of the reinforcement element ( 3 ). 
     
     
         14 . The construction element ( 1 ) as claimed in  claim 1 , wherein the casing comprises a thin-walled tubular sleeve that is push-fittable onto at least the projecting region of the central portion ( 4 ). 
     
     
         15 . The construction element ( 1 ) as claimed in  claim 1 , wherein the casing comprises a coating applied to at least the projecting region of the central portion ( 4 ) by spraying or brushing. 
     
     
         16 . The construction element ( 1 ) as claimed in  claim 1 , further comprising at least one of compression-force elements or transverse-force elements.