Formwork element and formwork construction kit

Abstract

A concrete formwork construction having a formwork element ( 1 ) whose frame ( 3 ) is produced from flat steel, whereas the struts ( 4 ) of the formwork element ( 1 ) are formed of sectional steel.

1 . A formwork element ( 1 ), comprising:
 a formwork skin ( 2 ),   a frame ( 3 ) supporting the formwork skin ( 2 ), and   struts ( 4 ) arranged within the frame ( 3 ) that support the formwork skin ( 2 ),   wherein the frame ( 3 ) is produced from unprofiled flat steel, and the struts ( 4 ) are produced from open sectional steel,   an even number of the struts ( 4 ) are arranged within the frame ( 3 ), of which two outer ones of the struts ( 4   a,    4   b ) each have at least one plug-through opening ( 5 ) for an anchor,   at least one of the struts ( 4 ) has at least first and second plug-through openings ( 5 ), wherein a shortest distance between the first plug-through opening ( 6 ) and the frame ( 3 ) is shorter than a shortest distance between the second plug-through opening ( 7 ) and the frame ( 3 ), and   the frame ( 3 ) has a side ratio of 3 to 5.   
     
     
         2 . The formwork element ( 1 ) as claimed in  claim 1 , wherein at least one of: the sectional steel is open to the formwork skin ( 2 ), the sectional steel has a symmetrical profile, or the sectional steel has at least one longitudinal bead ( 14 ) on a head side ( 13 ) thereof. 
     
     
         3 . The formwork element ( 1 ) as claimed in  claim 1 , wherein two or four of the struts ( 4 ) are arranged within the frame ( 3 ). 
     
     
         4 . The formwork element ( 1 ) as claimed in  claim 1 , wherein struts ( 4 ) are at least one of oriented parallel to one another or spaced uniformly apart from one another. 
     
     
         5 . The formwork element ( 1 ) as claimed in  claim 1 , wherein the frame ( 10 ) includes frame legs ( 8 ,  9 ), and the second plug-through opening ( 7 ) is equally spaced apart from two mutually adjoining ones of the frame legs ( 8 ,  9 ). 
     
     
         6 . The formwork element ( 1 ) as claimed in  claim 1 , wherein the struts ( 4 ) are produced from a sectional steel having at least one of a trapezoid profile or a trapezoidal cross section. 
     
     
         7 . The formwork element ( 1 ) as claimed in  claim 1 , wherein the frame ( 3 ) is projection-free on inner side thereof. 
     
     
         8 . The formwork element ( 1 ) as claimed in  claim 1 , wherein the frame ( 3 ) has at least two different types of connection openings ( 18 ,  19 ). 
     
     
         9 . The formwork element ( 1 ) as claimed in  claim 1 , wherein the struts ( 4 ) are formed identically to one another. 
     
     
         10 . A formwork construction kit comprising at least two different types of formwork elements ( 1 ) as claimed in  claim 1 , wherein two intersecting lines ( 23 ,  24 ) of the plug-through openings ( 5 ,  6 ,  7 ) of a first type of the formwork elements ( 1 ) are matched in their positions to a line ( 25 ) of the plug-through openings ( 5 ,  6 ,  7 ) of a second type of the formwork elements ( 1 ). 
     
     
         11 . The formwork construction kit as claimed in  claim 10 , further comprising a connection clamp ( 20 ) and a plug-through bolt ( 23 ) configured for selectively connecting the formwork element ( 1 ) to a further formwork element. 
     
     
         12 .- 14 . (canceled) 
     
     
         15 . The formwork element ( 1 ) as claimed in  claim 8 , wherein a clear width of the different types of the connection openings ( 18 ,  19 ) transversely to the formwork skin ( 2 ) is chosen to be corresponding. 
     
     
         16 . The formwork element ( 1 ) as claimed in  claim 8 , wherein at least a first type of the connection openings ( 18 ) is an oblong hole and a second type of the connection openings ( 19 ) is a round hole. 
     
     
         17 . A formwork construction kit comprising at least two different types of formwork elements ( 1 ) as claimed in  claim 1 , wherein at least one type of the formwork elements ( 1 ) includes at least one connection clamp ( 20 ), and holding projections ( 22 ) on clamp arms ( 21 ) of the connection clamp ( 20 ) are configured to fit with the connection openings ( 18 ,  19 ) in the frame ( 3 ) of the formwork elements ( 1 ).