Support structure for a frame formwork panel
A support structure for a frame formwork panel including a support structure and a formwork skin connected to the support structure, the support structure having two longitudinal edge girders and two transverse edge girders, wherein a corner connecting piece which is welded to the two respective edge girders is provided in at least some of the corner regions of the support structure where a longitudinal edge girder and a transverse edge girder come together.
1. A support structure for a frame formwork panel, the support structure comprising:
two longitudinal edge girders comprising at least a first longitudinal edge girder and two transverse edge girders comprising at least a first transverse edge girder, wherein the two longitudinal edge girders and the two transverse edge girders each define, on respective rear sides, a flange projecting toward a center region of the support structure;
a corner connecting piece, connected by welded connection to the flange of the first longitudinal edge girder and the flange of the first transverse edge girder, disposed in at a corner region of the support structure where the first longitudinal edge girder and the first transverse edge girder meet,
wherein in at least one of the following weld connection positions:
a) the welded connection between the longitudinal edge girder and the corner connecting piece;
b) the welded connection between the transverse edge girder and the corner connecting piece; or
c) the welded connection in a region of miter surfaces of the first longitudinal edge girder and the first transverse edge girder,
the welded connection is configured as a plug weld connection or as a recess weld, at least one of the flanges defining a recess at an edge of the flange and/or in the case of the plug weld joint position(s) a) and b), the plug weld joint defines a hole in the flange of the first transverse edge girder or the first longitudinal edge girder.
2. The support structure according to claim 1 , wherein the corner connecting piece is welded to the two flanges of the two edge girders coming together at the respective corner of the support structure.
3. The support structure according to claim 2 , wherein the corner connecting piece rests on a front side facing a formwork skin side of the support structure or on a rear side of the two flanges of the two respective edge girders facing away from the formwork skin side of the support structure.
4. The support structure according to claim 1 , wherein the corner connecting piece is a metal piece with two legs that are perpendicular to each other.
5. The support structure according to claim 2 , wherein in at least one corner of the support structure, at least one of the flanges of the two edge girders defines a recess which can be welded to the corner connecting piece.
6. The support structure according to claim 2 , wherein in at least one corner of the support structure, the flange of the two edge girders comprises miter surfaces; and that a recess is provided on the miter surface of one of the flanges.
7. The support structure according to claim 1 , wherein at least one positioning piece is provided at a point located between two ends of one of the two longitudinal edge girders or the transverse edge girder for attaching a formwork prop.
8. The support structure according to claim 7 , wherein the at least one positioning piece is welded to the flange of the one of the two longitudinal edge girders or the transverse edge girder.
9. The support structure according to claim 1 , wherein with the hole defines an elongated hole.
10. The support structure according to claim 1 , wherein the corner connecting piece has at least one positioning lug to facilitate attachment of a formwork prop.
11. The support structure according to claim 10 , wherein the corner connecting piece comprises two legs and comprises three positioning lugs, wherein a first lug of the three positioning lugs is in a region of a first leg of the two legs, wherein a second lug of the three positioning lugs is in a region of a second leg of the two legs, and wherein a third lug is positioned in the interior angle region of the two legs of the corner connecting piece.
12. The support structure according to claim 11 , wherein the three positioning lugs project beyond an inner edge of the respective flange of the respective two edge girders when viewed from a front of the support structure.
13. The support structure according to claim 1 , wherein the two longitudinal edge girders and/or the two transverse edge girders are extruded profiles made of aluminum.
14. A frame formwork panel, comprising:
a support structure according to claim 1 and a formwork skin at a front of the support structure that is connected to the support structure.
15. A method for creating a support structure according to claim 1 , wherein the two longitudinal edge girders, the two transverse edge girders, and the corner connecting piece to be welded are placed in a welding device; and that welded connections between the edge girders and the welded connections between said corner connecting pieces and the edge girders are fashioned from a rear of the support structure.
16. The method according to claim 15 ,
wherein at least some of the welded connections are fashioned by a respective flange hole or through a respective flange recess.
17. A support structure for a frame formwork panel, fashioned with the method according to claim 15 .
18. A support structure for a frame formwork panel, the support structure comprising:
two longitudinal edge girders comprising at least a first longitudinal edge girder;
two transverse edge girders comprising at least a first transverse edge girder, wherein the two longitudinal edge girders and the two transverse edge girders each define, on respective rear sides, a flange projecting toward a center region of the support structure;
a corner connecting piece, connected by welded connection to the flange of the first longitudinal edge girder and the flange of the first transverse edge girder, disposed at a corner region of the support structure where the first longitudinal edge girder and the first transverse edge girder meet,
wherein in at least one of the following weld connection positions:
a) the welded connection between the longitudinal edge girder and the corner connecting piece;
b) the welded connection between the transverse edge girder and the corner connecting piece; or
c) the welded connection in a region of miter surfaces of the first longitudinal edge girder and the first transverse edge girder,
the welded connection is configured as a plug weld connection or as a recess weld, at least one of the flanges defining a recess at an edge of the flange and/or in the case of the plug weld joint position(s) a) and b), the plug weld joint defines a hole in the flange of the first transverse edge girder or the first longitudinal edge girder.