EP0274133B1 - Shuttering for concrete work - Google Patents

Shuttering for concrete work Download PDF

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Publication number
EP0274133B1
EP0274133B1 EP87119380A EP87119380A EP0274133B1 EP 0274133 B1 EP0274133 B1 EP 0274133B1 EP 87119380 A EP87119380 A EP 87119380A EP 87119380 A EP87119380 A EP 87119380A EP 0274133 B1 EP0274133 B1 EP 0274133B1
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EP
European Patent Office
Prior art keywords
holes
shuttering
row
crossbar
profiled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87119380A
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German (de)
French (fr)
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EP0274133A2 (en
EP0274133A3 (en
Inventor
Niels Dipl.-Ing. Hollmann
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Individual
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Individual
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Publication of EP0274133A3 publication Critical patent/EP0274133A3/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0473—U- or C-shaped

Definitions

  • the formwork panel supports are provided to run essentially vertically or to incline in accordance with a formwork panel inclination; but there is also an essentially horizontal course, particularly in the formwork of tunnel structures or the like.
  • the formwork panel supports are designed as wooden girders with a relatively large dimension, measured perpendicular to the level of the formwork panel, in order to provide a high moment of resistance against bending of the formwork panel deliver from their level.
  • the crossbars in which two U-profile beams Back to back are welded together using tabs at a mutual distance.
  • the space between the webs of the two profile beams can be used for the convenient reception of coupling pieces for connecting adjacent cross bars.
  • the coupling pieces are often connected to the crossbars in that bolts or wedges are driven through perforations in the webs of the profiled beams and through perforations in the coupling pieces, the spacing of the perforations in the coupling pieces being to a certain extent from the spacing of the perforations in the profiled beams may differ, which makes it easier to find suitable places for inserting the bolts or wedges.
  • the invention has for its object to provide such a concreting formwork with a profile girder for formwork crossbeams which is more advantageous in terms of usability at the construction site or a formwork crossbeam constructed with at least one such profile girder.
  • profile beam for concrete formwork is known, which has the features (c) and (f) reproduced above. It is not described that this profile beam is provided as a crossbar, which connects several formwork panel supports of the formwork panel to one another on the back and which is intended for flush connection with a corresponding crossbar of an adjacent formwork panel.
  • the profile beams can be divided or shortened as desired, the profile beams thus produced being fully usable with perforations, in particular for connecting coupling pieces.
  • the elongated holes and the holes of the profile beams are preferably formed without a protruding collar. In sales, you can restrict yourself to a very small number of standardized lengths of the profile girders or the crossbeams built with them. Any intermediate lengths required can be easily cut by sawing off of the next longer, standardized length.
  • the elongated holes are used to drive in wedges which interact with perforations in the coupling pieces between adjacent profile beams or crossbars, with one wedge, sometimes several wedges, usually being used on each side of the formwork panel connection.
  • the holes in the at least one row of holes next to the row of elongated holes can be used, on the one hand, to fasten coupling pieces between, in particular in alignment, adjacent profile beams or crossbars constructed therewith by means of screws.
  • the holes in the at least one row of holes next to the row of elongated holes offer options for attaching additional parts and additional equipment that are favorable on the construction site, for example attaching an external corner train connection to formwork corners, installing internal corner support parts, attaching length compensation pieces, attaching fixed coupling pieces for the permanent connection of two profile beams or Crossbars for creating larger profile beam lengths or crossbar lengths, attaching oblique or horizontal supports and the like. It is a further advantage of the profile beams provided according to the invention that they can be used in great variability to form lattice-like structures, for example stages, truss structures, scaffold consoles and the like. can be easily created by screwing them together.
  • the elongated holes are preferably provided in the central region of the web.
  • the holes in the at least one row of holes next to the row of elongated holes are preferably round holes.
  • the longitudinal grid dimension of the row of elongated holes is preferably equal to the grid dimension of the at least one row of holes, but need not be.
  • standardized profile beam or crossbar standard lengths are preferably meant, so that one can by dividing or assembling profile beams or crossbars can create other standard lengths. This significantly simplifies production, warehousing and use on the construction site.
  • a row of holes is provided on both sides of the row of elongated holes, the two rows of holes being spaced apart in a transverse pitch corresponding to the longitudinal pitch of the rows of holes.
  • the holes of the additional row (s) of holes are preferably arranged next to the row of slots "on a gap" to the slots. This boils down to the fact that the additional holes are provided with their centers at locations of the profile beam length where there are no elongated holes. As a result, the shear force transmission capacity of the profile beams or crossbars is practically not affected by the additional holes.
  • the profile carrier preferably consists of a solid rolled profile. Such rolled profiles are comparatively inexpensive commercially available.
  • the profile carrier consists of sheet metal brought into the profile shape by bending, which is bent over at least one flange region, at least for part of the flange region width, in multiple layers, preferably double-layered.
  • the multi-layered material accumulates in the area or areas that are particularly important for the load bearing.
  • the web of the profile beam which is only of secondary importance for the load absorption, can be thinner than in the case of conventional formwork crossbeam profile beams, so that a lighter structure is achieved for a given or required load carrying capacity.
  • sheets are conveniently and inexpensively available in high strengths, so that also from this point of view - for a given or required Load carrying capacity - a lower weight and a lower price per unit length of the profile beam can be achieved.
  • one is freer in the shape of the cross section of the profile beam.
  • the high strength of the profile support which can be achieved in a manner that is favorable to manufacture, also makes it easy to accept the weakening, which in principle is associated with the continuous provision of perforations.
  • the term "double-layered” does not mean that one would be limited to a two-layered sheet in the at least one flange area, although this is preferred. More than two layers are also possible. It is not imperative, but preferred, to make a large part of the flange region width that is possible in terms of manufacture in multiple layers in order to have the greatest advantage of the associated increase in strength.
  • the profile carrier is substantially U-shaped in cross section.
  • the U-profile has advantages in particular in terms of price, load-bearing capacity and the ease of combining it into a crossbeam made of two U-profile beams.
  • the flange regions of the profile carrier are preferably unperforated.
  • the flange areas absorb a large part of the loads, in particular the bending moment, so that training with flange areas not weakened by perforations is favorable.
  • the convenient connection options between profiled beams desired according to the invention can be easily achieved through the perforations described in the web.
  • the crossbar made from only one of the profile beams described, it is preferred to construct the crossbar with two profile beams. It is particularly expedient to provide two profiled beams which face one another with the web outer sides and are arranged at a distance between the web outer sides. You can work without an immediate connection, especially by welding tabs, the two profile beams.
  • the functional combination of the two profile beams into a crossbeam is then preferably obtained by fastening the two profile beams to the formwork panel beams.
  • brackets each of which positively engages behind the bent protrusions of the two profiled beams, so that if the clamps are designed appropriately, the profiled beams are mutually positively fixed.
  • the two profiled beams are connected to one another by spacer bolts.
  • the holes of the at least one row of holes are used in addition to the row of elongated holes, and such a connection, in particular made in the manufacturer's plant, of two profile beams to form a crossbar is less expensive to manufacture than the previously common tab welding of two parallel profile beams.
  • the procedure is preferably such that a sheet metal strip is unwound from the coil and punched with the elongated holes and the additional holes without taking into account the length of the profiled member to be produced. Then a section of the length of the profile beam is made from the sheet metal strip, preferably separated by punching. Then the section is bent or folded into the profile shape. This is a particularly efficient manufacturing technique.
  • the drawing shows a perspective view of a section of a concreting formwork with the formwork panel omitted, with a crossbar consisting of two combined, continuously perforated sheet metal girders and a connecting bracket between the crossbar and an exemplary formwork panel girder made of wood.
  • a formwork panel support 2 made of wood with double T-profile which is drawn as an example from a series of parallel beams.
  • the formwork panel which is not shown in order to increase the overview, must be placed against the flange surface of the beam 2 located at the top in FIG. 1 and must be attached to the parallel beams 2, for example by nailing.
  • the beams 2 are connected to one another on the side facing away from the formwork panel by a plurality of parallel steel crossbeams 4 arranged at a greater distance, one of which is shown in FIG. 1.
  • the drawn crossbar 4 consists of two parallel profile beams 6, which are arranged back to back at a distance from each other.
  • the two profile beams 6 are constructed identically. They are each essentially U-shaped Profile with an upper, first flange area 8 in FIG. 1, a lower, second flange area 10 in FIG. 1 and a web 12 between the two flange areas 8, 10.
  • Each profile support 6 consists of sheet metal with a sheet thickness of a few millimeters. At the transition from the web 12 into the first flange area 6, the sheet is bent at right angles to one side.
  • the sheet is bent or bent back outwards by a total of 180 °, with a slight bend towards the center of the web, then a bend upwards parallel to the web and then a right-angled bend back , so that an essentially triangular cavity is formed at the end of the flange region.
  • the outer sheet-metal layer of the first flange region 6 formed in the manner described goes a little way over the web 12 and is bent downward briefly parallel to the web 12 at the end. It can be seen that in this way a double-layered, first flange region 8 and a projection 14 with an extension 15 are formed on the outside of the web 12 facing away from the U.
  • the second flange region 10 and an overhang assigned to it are designed quite analogously, so that the profile carrier 6 is overall symmetrical to a central plane which extends in the middle of the web 6 parallel to the two flange regions 8, 10.
  • the two profiled beams 6 are of identical design and face one another with their web outer sides at a mutual distance.
  • a series of perforations 16 is provided in the middle of the web 12 along the respective profiled support 6.
  • Each perforation 16 is designed as an elongated hole in the direction of the profile beam length, the ends of the elongated holes being trapezoidal.
  • the holes 18, 20 are round. They are provided between the perforations 16, if one proceeds along the respective profile beam.
  • Both the perforations 16 and the holes 18, 20, measured in the longitudinal direction of the profile support 6 and from the center of the perforation to the center of the hole or from the center of the hole to the center of the hole, are arranged in a grid dimension a.
  • the distance a corresponds to the grid dimension.
  • a bracket 22 which essentially consists of a base part 24, a screw bolt 26 with nut and a clamping body 28.
  • the base part 24 is made from a strong, trapezoidal sheet metal part by punching and bending.
  • the long base of this trapezoid is toothed by punching so that it can dig into the back of the lower flange of the carrier 2 in FIG. 1.
  • the upper end of this trapezoid is at right angles bent outside.
  • a trapezoidal sheet metal tab is cut free from the sheet metal part on three sides and bent outward at right angles around the long trapezoidal side, parallel to the upper bent sheet metal area.
  • the non-bent sheet metal area rests on the web of the carrier 2.
  • the two bent sheet metal areas each have a hole.
  • the clamping body 28 has the shape of an open U with two bending areas 30, each of which engages in the gap between the extension 15 and the web 12 and create a form-fitting summary of the profile carrier 6 with a defined distance.
  • the screw bolt passes through the clamping body 28 through a hole, a screw bolt head (not shown in the drawing) abutting against the clamping body 28 from below. If the nut of the screw bolt 26 is tightened from above the base part 24, the clamping body 28 is pulled from below against the projections 14 or the extensions 15 of the two profile carriers 6, the first flange regions 8 of the two profile carriers 6 against the one in FIG. 1 lower flange of the carrier 2 are clamped. The guiding of the screw bolt 26 through two spaced-apart holes in the base part 24 prevents deformation of the base part under the action of the clamping force exerted by the nut and tilting of the base part 24.
  • the clamping body 28, when viewed in the state attached to the profile beams 6, is so short in the longitudinal direction of the profile beams 6 that it rotates between the two profile beams 6 by about 90 ° about the bolt axis.
  • the clamping body 28 can thus be conveniently introduced from above between the two profile supports 6 in FIG. 2, then rotated and then clamped be pulled up.
  • the lower head of the bolt 26 can have a square, which cooperates with a square hole of the clamping body 28 or, as shown, with a slot of the clamping body 28 to prevent rotation.
  • the formwork panel support 2 shown in FIG. 1 is designed as a support with a continuous web between its two flanges. It is a special feature of the clamp 22 described that it can engage next to a continuous web of the carrier 2 and does not depend on the carrier 2 being designed as a lattice carrier. However, the bracket 22 can also be used with a lattice girder 2.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

The supporting section (6) has a first flange region (8), a second flange region (10) and a web (12) between the two flange regions (8, 10), and a plurality of longitudinally spaced holes are provided respectively in the web (12) in the end regions of the supporting section (6). The supporting section (6) is provided, in the web (12), continuously over the length both with a row of long holes (16), spaced at a grid dimension (a) for receiving a wedge, and, at least on one side of the row of long holes with a row of holes (18; 2) spaced at a grid dimension (a), the grid dimension (a) of the row of long holes and the grid dimension (a) of the at least one row of holes each being essentially an integral fraction of the length of the supporting section.

Description

Es sind mehrere Arten des Aufbaus von Schalungen für das Betonieren bekannt. Eine dieser Art setzt vergleichsweise großformatige Schalungsplatten ein, die rückseitig jeweils durch mehrere beabstandete Träger abgestützt sind, wobei diese Träger durch quer zu ihnen verlaufende Gurte oder Riegel miteinander verbunden sind. Die Querriegel dienen einerseits dazu, mehrere, einer gemeinsamen Schalungsplatte zugeordnete Träger zu einer formstabilen Einheit miteinander zu verbinden. Sie dienen andererseits der Befestigung von Spannankern zwischen beabstandeten Schalungsplatten zur Formgebung der beiden Flächen herzustellender, insbesondere wandartiger, Betonkörper. Und sie dienen ferner in der Regel dazu, mittels Kupplungsstücken zwischen zwei benachbarten, insbesondere im wesentlichen fluchtenden, Querriegeln eine Verbindung zwischen benachbarten Schalungsplatten und deren Schalungsplatten-Trägern zu ermöglichen, wobei diese Verbindung so gestaltet sein soll, daß die benachbarten Schalungsplatten möglichst genau miteinander fluchten und möglichst eng zusammengespannt sind, damit keine Schalungsfugen mit der Gefahr des Hindurchlaufens von Beton verbleiben. In den meisten Fällen sind die Schalungsplatten-Träger im wesentlichen vertikal verlaufend oder entsprechend einer Schalungsplattenneigung geneigt verlaufend vorgesehen; aber auch ein im wesentlichen horizontaler Verlauf kommt vor, insbesondere bei der Schalung von Tunnelbauten oder dgl. Die Schalungsplatten-Träger sind in den meisten Fällen als Holzträger mit relativ großer Abmessung gemessen senkrecht zur Ebene der Schalungsplatte ausgebildet, um ein hohes Widerstandmoment gegen Ausbiegung der Schalungsplatte aus ihrer Ebene zu liefern. Bei den Querriegeln trifft man bisher großenteils eine Bauweise an, bei der zwei U-Profilträger Rücken an Rücken mittels Laschen mit gegenseitigem Abstand miteinander verschweißt sind. Der Zwischenraum zwischen den Stegen der beiden Profilträger kann zur bequemen Aufnahme von Kupplungsstücken zum Verbinden von benachbart aneinander anschließenden Querriegeln dienen. Die Kupplungsstücke werden häufig dadurch mit den Querriegeln verbunden, daß Bolzen oder Keile durch Lochungen in den Stegen der Profilträger und durch Lochungen in den Kupplungsstücken getrieben werden, wobei der Abstand der Lochungen in den Kupplungsstücken um ein gewisses Maß von dem Abstand der Lochungen in den Profilträgern abweichen kann, was das Auffinden geeigneter Stellen zum Einsetzen der Bolzen oder Keile erleichtert.Several types of formwork for concreting are known. One of these types uses comparatively large-sized formwork panels, each of which is supported on the back by a plurality of spaced girders, these girders being connected to one another by straps or bolts running transversely to them. The crossbeams serve on the one hand to connect several beams assigned to a common formwork panel to form a dimensionally stable unit. On the other hand, they serve for the fastening of tension anchors between spaced formwork panels for the shaping of the two surfaces of, in particular wall-like, concrete bodies to be produced. And they also generally serve to enable a connection between adjacent formwork panels and their formwork panel supports by means of coupling pieces between two adjacent, in particular essentially aligned, crossbars, this connection being designed so that the adjacent formwork panels are aligned as precisely as possible and are clamped together as closely as possible so that no formwork joints remain with the risk of concrete running through. In most cases, the formwork panel supports are provided to run essentially vertically or to incline in accordance with a formwork panel inclination; but there is also an essentially horizontal course, particularly in the formwork of tunnel structures or the like. In most cases, the formwork panel supports are designed as wooden girders with a relatively large dimension, measured perpendicular to the level of the formwork panel, in order to provide a high moment of resistance against bending of the formwork panel deliver from their level. Up to now, one has mostly encountered one type of construction with the crossbars, in which two U-profile beams Back to back are welded together using tabs at a mutual distance. The space between the webs of the two profile beams can be used for the convenient reception of coupling pieces for connecting adjacent cross bars. The coupling pieces are often connected to the crossbars in that bolts or wedges are driven through perforations in the webs of the profiled beams and through perforations in the coupling pieces, the spacing of the perforations in the coupling pieces being to a certain extent from the spacing of the perforations in the profiled beams may differ, which makes it easier to find suitable places for inserting the bolts or wedges.

Querriegel und Kupplungsstücke in einer derartigen Ausführung, daß diese an der Baustelle wahlweise mittels in Langlöcher eingesetzter Keile und/oder mittels Schraubverbindungen verbunden werden konnten, sind nicht bekannt.Crossbars and coupling pieces in such a design that they could be connected at the construction site either by means of wedges inserted in elongated holes and / or by means of screw connections are not known.

Die Erfindung bezieht sich auf eine Betonierungsschalung mit folgenden Merkmalen:

  • (a) es sind mindestens zwei benachbarte Schalungsplatten vorgesehen, die rückseitig jeweils durch mehrere beabstandete Schalungsplattenträger abgestützt sind;
  • (b) jede der beiden Schalungsplatten weist mindestens einen Querriegel auf, der rückseitig mehrere Schalungsplattenträger der Schalungsplatte miteinander verbindet;
  • (c) der Querriegel weist mindestens einen Querriegel-Profilträger aus Stahl mit einem ersten Flanschbereich, einem zweiten Flanschbereich und einem Steg zwischen den beiden Flanschbereichen auf;
  • (d) in den Endbereichen des Querriegel-Profilträgers sind in dem Steg jeweils mehrere, in Längsrichtung beabstandete Lochungen vorgesehen; und
  • (e) zwei fluchtende Querriegel-Profilträger der beiden Schalungsplatten sind mittels eines Kupplungsstücks unter Nutzung von Lochungen der beiden Querriegel-Profilträger fluchtend miteinander verbunden.
The invention relates to a concrete formwork with the following features:
  • (a) at least two adjacent formwork panels are provided, each of which is supported on the back by a plurality of spaced formwork panel supports;
  • (b) each of the two formwork panels has at least one crossbar which connects a plurality of formwork panel supports of the formwork panel to one another at the rear;
  • (c) the cross bar has at least one cross bar profile beam made of steel with a first flange area, a second flange area and a web between the two flange areas;
  • (d) in the end regions of the cross-bar profile carrier, a plurality of perforations spaced in the longitudinal direction are provided in the web; and
  • (e) two aligned crossbeam profile beams of the two formwork panels are connected to one another in alignment by means of a coupling piece using perforations of the two crossbeam profile beams.

Eine derartige Betonierungsschalung ist bekannt, wie eingangs ausgeführt.Such a concrete formwork is known, as stated at the beginning.

Der Erfindung liegt die Aufgabe zugrunde, eine derartige Betonierungsschalung mit einem von der Einsatzfähigkeit an der Baustelle her günstigeren Profilträger für Schalungsquerriegel bzw. einem mit mindestens einem derartigen Profilträger aufgebauten Schalungsquerriegel zu schaffen.The invention has for its object to provide such a concreting formwork with a profile girder for formwork crossbeams which is more advantageous in terms of usability at the construction site or a formwork crossbeam constructed with at least one such profile girder.

Zur Lösung dieser Aufgabe ist die Betonierungsschalung erfindungsgemäß dadurch gekennzeichnet,

  • (f) daß der Querriegel-Profilträger in dem Steg über die Länge durchgehend sowohl mit einer Reihe von in einem Rastermaß (a) beabstandeten Länglöchern als auch, mindestens einseitig von der Langlochreihe, mit einer Reihe von in einem Rastermaß (a) beabstandeten Löchern versehen ist, wobei das Rastermaß (a) der Langlochreihe und das Rastermaß (a) der mindestens einen Langlochreihe jeweils im wesentlichen ein ganzzahliger Bruchteil der Profilträgerlänge ist; und
  • (g) daß zum fluchtenden Verbinden der beiden Querriegel-Profilträger die Verbindung zwischen dem Kupplungsstück und dem betreffenden Querriegel-Profilträger wahlweise mittels mindestens eines Keils, der durch eines der Langlöcher und eine Lochung des Kupplungsstücks getrieben ist, und/oder mittels einer die Löcher nutzenden Schraubverbindung hergestellt ist.
To achieve this object, the concrete formwork is characterized according to the invention in that
  • (f) that the cross-bar profile support in the web is provided over the entire length with both a row of elongated holes spaced apart in a grid dimension (a) and, at least on one side of the row of elongated holes, with a row of holes spaced apart in a grid dimension (a) is, the grid dimension (a) of the row of elongated holes and the grid dimension (a) of the at least one row of elongated holes each being essentially an integral fraction of the length of the profiled member; and
  • (g) that for the aligned connection of the two cross-bar profile beams, the connection between the coupling piece and the relevant cross-bar profile beam optionally by means of at least one wedge which is driven through one of the elongated holes and a hole in the coupling piece, and / or by means of one using the holes Screw connection is established.

Aus dem Dokument DE-A-2 213 622 ist ein Profilträger für Betonierungsschalungen bekannt, der die vorstehend wiedergegebenen Merkmale (c) und (f) besitzt. Es ist nicht beschrieben, daß dieser Profilträger als Querriegel vorgesehen sei, der rückseitig mehrere Schalungsplattenträger der Schalungsplatte miteinander verbindet und der zum fluchtenden Verbinden mit einem entsprechenden Querriegel einer benachbarten Schalungsplatte bestimmt ist.From document DE-A-2 213 622 a profile beam for concrete formwork is known, which has the features (c) and (f) reproduced above. It is not described that this profile beam is provided as a crossbar, which connects several formwork panel supports of the formwork panel to one another on the back and which is intended for flush connection with a corresponding crossbar of an adjacent formwork panel.

Im Fall von Profilträgern für Querriegel bzw. von mit diesen aufgebauten Querriegeln hat man bisher lediglich deren Endbereiche mit Lochungen versehen. Dies resultiert aus der natürlichen Denkweise, daß dort die Kupplungsstücke zum Verbinden von benachbart aneinander anschliessenden Querriegeln anzubringen sind und daß Lochungen an sich nur dort sinnvoll sind, wo sie auch gebraucht werden. Die Erfindung geht also den zunächst widersinnig erscheinenden Weg, Lochungen auf die ganze Länge des Profilträgers bzw. des damit gebildeten Schalungsquerriegels, also auch zwischen dessen Endbereichen, vorzusehen, obwohl man dort an sich keinen Anlaß für Lochungen gesehen hat. Der hiermit verbundene, erhöhte Herstellungsaufwand für zahlreichere Lochungen und die damit einhergehende Schwächung des Profilträgers auch zwischen den beiden Endbereichen werden bewußt in Kauf genommen. Statt dessen wird höher bewertet, daß die Profilträger beliebig geteilt oder gekürzt werden können, wobei die so erzeugten Profilträger vollwertig einsetzbar mit Lochungen insbesondere zum Anschließen von Kupplungsstücken sind. Auch bei der Herstellung der Profilträger ergeben sich, trotz der größeren Anzahl von Lochungen, Rationalisierungseffekte, da ohne Rücksicht auf die Länge einfach durchgehend gelocht wird. Die Langlöcher und die Löcher der Profilträger sind vorzugsweise ohne vorstehende Kragen ausgebildet. Im Verkauf kann man sich auf sehr wenige, normierte Längen der Profilträger bzw. der damit aufgebauten Querriegel beschränken. Etwaig benötigte Zwischenlängen können auf einfachste Weise durch kürzendes Absägen von der nächstlängeren, normierten Länge bereitgestellt werden. Die Langlöcher dienen dem Eintreiben von Keilen, die mit Lochungen in den Kupplungsstücken zwischen benachbarten Profilträgern bzw. Querriegeln zusammenwirken, wobei üblicherweise auf jeder Seite der Schalungsplattenverbindung ein, zuweilen auch mehere Keile eingesetzt werden. Die Löcher der mindestens einen Lochreihe neben der Langlochreihe können einerseits dafür genutzt werden, Kupplungsstücke zwischen, insbesondere fluchtend, benachbarten Profilträgern bzw. damit aufgebauten Querriegeln an diesen durch Schrauben zu befestigen. Dabei ist die Arbeitsweise häufig so, daß man beim Aufbau von Schalungsplattenanordnungen aus einer Mehrzahl von Schalungsplatten zunächst temporäre Schalungsplattenverbindungen mit Hilfe von Kupplungstücken und in Langlöcher eingetriebenen Keilen erstellt und dabei die jeweils benachbarten Schalungsplatten dicht zusammenzieht und daß man anschließend permanentere Verbindungen benachbarter Schalungsplatten durch zwischengeschraubte Kupplungsstücke erstellt. Man kann aber auch für das Betonieren mit Schalungsplattenanordnungen arbeiten, bei denen einzelne oder alle benachbarten Schalungsplatten durch Kupplungsstücke mit eingetriebenen Keilen miteinander verbunden sind.In the case of profile beams for crossbeams or crossbeams constructed with them, only their end regions have so far been provided with perforations. This results from the natural way of thinking that there the coupling pieces for connecting adjacent cross bars are to be attached and that perforations are only useful where they are needed. The invention thus goes the initially contradictory way of providing perforations over the entire length of the section girder or the formwork crossbeam formed therewith, that is to say also between its end regions, although there has been no reason for perforations to be seen there. The associated increased manufacturing costs for numerous perforations and the associated weakening of the profile carrier between the two end areas are consciously accepted. Instead, it is rated higher that the profile beams can be divided or shortened as desired, the profile beams thus produced being fully usable with perforations, in particular for connecting coupling pieces. Even in the manufacture of the profile beams, despite the larger number of perforations, there are rationalization effects, since holes are simply punched through regardless of the length. The elongated holes and the holes of the profile beams are preferably formed without a protruding collar. In sales, you can restrict yourself to a very small number of standardized lengths of the profile girders or the crossbeams built with them. Any intermediate lengths required can be easily cut by sawing off of the next longer, standardized length. The elongated holes are used to drive in wedges which interact with perforations in the coupling pieces between adjacent profile beams or crossbars, with one wedge, sometimes several wedges, usually being used on each side of the formwork panel connection. The holes in the at least one row of holes next to the row of elongated holes can be used, on the one hand, to fasten coupling pieces between, in particular in alignment, adjacent profile beams or crossbars constructed therewith by means of screws. The procedure is often such that when formwork formwork assemblies are constructed from a plurality of formwork panels, temporary formwork panel connections are first created with the aid of coupling pieces and wedges driven into elongated holes, and the adjacent formwork panels are pulled together tightly, and then permanent connections of adjacent formwork panels are made by means of screwed coupling pieces created. But you can also work for concreting with formwork panel arrangements in which individual or all adjacent formwork panels are connected to each other by coupling pieces with driven wedges.

Die Löcher der mindestens einen Lochreihe neben der Langlochreihe bieten andererseits baustellengünstige Möglichkeiten der Anbringung von Zusatzteilen und Zusatzausrüstungen, beispielsweise Anbringung einer Außeneck-Zugverbindung bei Schalungsecken, Anbringung von Inneneck-Abstützungsteilen, Anbringung von Längenausgleichsstücken, Anbringung von Festkupplungsstücken zum dauerhafteren Verbinden von zwei Profilträgern bzw. Querriegeln zur Erstellung von größeren Profilträgerlängen bzw. Querriegellängen, Anbringung von Schräg- oder Horizontal-Abstützungen und dgl. Es ist ein weiterer Vorteil der erfindungsgemäß vorgesehenen Profilträger, daß sich mit ihnen in großer Variabilität gitterartige Strukturen, z.B. Bühnen, Fachwerkstrukturen, Gerüstkonsolen und dgl. auf einfachste Weise durch Zusammenschrauben erstellen lassen. Bei den vorstehen geschilderten Fällen kommt das durchgehende Vorsehen von Löchern über die Gesamtlänge des Profilträgers besonders augenfällig zum Tragen, weil Anbringungen der geschilderten Art überall längs des Profilträgers bzw. Querriegels möglich sind. Beim Stand der Technik war man bei derartigen Aufgaben häufig auf kompliziertere Übergangsteile oder auf ein vergleichsweise kompliziertes Anbringen an den Schalungsplatten-Trägern angewiesen.The holes in the at least one row of holes next to the row of elongated holes, on the other hand, offer options for attaching additional parts and additional equipment that are favorable on the construction site, for example attaching an external corner train connection to formwork corners, installing internal corner support parts, attaching length compensation pieces, attaching fixed coupling pieces for the permanent connection of two profile beams or Crossbars for creating larger profile beam lengths or crossbar lengths, attaching oblique or horizontal supports and the like. It is a further advantage of the profile beams provided according to the invention that they can be used in great variability to form lattice-like structures, for example stages, truss structures, scaffold consoles and the like. can be easily created by screwing them together. In the cases described above, the continuous provision of holes over the entire length of the profile beam is particularly evident because attachments of the type described are possible anywhere along the profile beam or crossbar. In the prior art, such tasks were often dependent on more complicated transition parts or on a comparatively complicated attachment to the formwork panel supports.

Beim erfindungsgemäßen Profilträger sind die Langlöcher vorzugsweise im mittleren Bereich des Stegs vorgesehen. Die Löcher der mindestens einen Lochreihe neben der Langlochreihe sind vorzugsweise Rundlöcher. Das Längs-Rastermaß der Langlochreihe ist vorzugsweise gleich dem Rastermaß der mindestens einen Lochreihe, muß es aber nicht sein.In the section support according to the invention, the elongated holes are preferably provided in the central region of the web. The holes in the at least one row of holes next to the row of elongated holes are preferably round holes. The longitudinal grid dimension of the row of elongated holes is preferably equal to the grid dimension of the at least one row of holes, but need not be.

Bei dem Merkmal, daß das Rastermaß der Langlochreihe und das Rastermaß der mindestens einen Lochreihe jeweils im wesentlichen ein ganzzahliger Bruchteil der Profilträgerlänge ist, sind vorzugsweise genormte Profilträger- bzw. Querriegel-Normlängen gemeint, so daß man durch Teilen oder Zusammensetzen von Profilträgern bzw. Querriegeln andere Normlängen erstellen kann. Dies vereinfacht die Produktion, die Lagerhaltung und den Einsatz an der Baustelle wesentlich.With the feature that the pitch of the row of elongated holes and the pitch of the at least one row of holes is essentially an integral fraction of the length of the profile beam, standardized profile beam or crossbar standard lengths are preferably meant, so that one can by dividing or assembling profile beams or crossbars can create other standard lengths. This significantly simplifies production, warehousing and use on the construction site.

Besonders günstig ist es, wenn man beidseitig von der Langlochreihe jeweils eine Lochreihe vorsieht, wobei die beiden Lochreihen in einem dem Längs-Rastermaß der Lochreihen entsprechenden Quer-Rastermaß beabstandet sind. Infolge dieser Maßnahme können wahlweise fluchtende Längsverbindungen oder rechtwinklige Anschlußverbindungen zwischen Profilträgern bzw. Querriegeln mit hoher Verbindungsstabilität erstellen werden. Auch 45°-Schrägverbindungen in Richtung der Diagonalen eines Rasterqudrats sind möglich.It is particularly advantageous if a row of holes is provided on both sides of the row of elongated holes, the two rows of holes being spaced apart in a transverse pitch corresponding to the longitudinal pitch of the rows of holes. As a result of this measure, either aligned Longitudinal connections or right-angled connections between profile beams or crossbars with high connection stability. 45 ° angled connections in the direction of the diagonals of a grid square are also possible.

Vorzugsweise sind die Löcher der zusätzlichen Lochreihe(n) neben der Langlochreihe "auf Lücke" zu den Langlöchern angeordnet. Dies läuft darauf hinaus, daß die zusätzlichen Löcher mit ihren Zentren an Stellen der Profilträgerlänge vorgesehen sind, wo keine Langlöcher vorhanden sind. Infolgedessen wird die Querkraft-Übertragungsfähigkeit der Profilträger bzw. Querriegel durch die zusätzlichen Löcher praktisch nicht beeinträchtigt. Vorzugsweise besteht der Profilträger aus einem massiven Walzprofil. Derartige Walzprofile sind im Handel vergleichsweise preisgünstig erhältlich.The holes of the additional row (s) of holes are preferably arranged next to the row of slots "on a gap" to the slots. This boils down to the fact that the additional holes are provided with their centers at locations of the profile beam length where there are no elongated holes. As a result, the shear force transmission capacity of the profile beams or crossbars is practically not affected by the additional holes. The profile carrier preferably consists of a solid rolled profile. Such rolled profiles are comparatively inexpensive commercially available.

Nach einer alternativen, auch bevorzugten Ausgestaltung der Erfindung besteht der Profilträger aus durch Biegen in die Profilgestalt gebrachtem Blech, das mindestens bei einem Flanschbereich mindestens für einen Teil der Flanschbereichsbreite umgebogen mehrlagig, vorzugsweise doppellagig ist. Durch die Mehrlagigkeit entsteht eine Materialansammlung an dem für die Lastaufnahme besonders wesentlichen Bereich bzw. Bereichen. Der für die Lastaufnahme nur in zweiter Linie wichtige Steg des Profilträgers kann dünner als bei herkömmlichen Schalungsquerriegel-Profilträgern sein, so daß man bei gegebenem bzw. gefordertem Lasttragvermögen zu einem leichteren Aufbau kommt. Es kommt hinzu, daß Bleche bequem und kostengünstig in hohen Festigkeiten erhältlich sind, so daß auch unter diesem Gesichtspunkt - bei gegebenem bzw. gefordertem Lasttragvermögen - ein geringeres Gewicht und ein geringerer Preis pro Längeneinheit des Profilträgers erzielbar sind. Außerdem ist man in der Formgestaltung des Querschitts des Profilträgers freier. Die herstellungsgünstig erzielbare, hohe Festigkeit des Profilträgers macht auch die prinzipiell mit dem durchgehenden Vorsehen von Lochungen einhergehende Schwächung leicht in Kauf nehmbar. Der Begriff "doppellagig" bedeutet nicht, daß man auf eine Zweilagigkeit des Blechs bei dem mindestens einen Flanschbereich beschränkt wäre, wiewohl diese bevorzugt ist. Es sind auch mehr als zwei Lagen möglich. Es ist nicht zwingend, aber bevorzugt, einen herstellungsgünstig möglich großen Teil der Flanschbereichsbreite mehrlagig auszubilden, um den größten Vorteil von der damit einhergehenden Festigkeitssteigerung zu haben.According to an alternative, also preferred embodiment of the invention, the profile carrier consists of sheet metal brought into the profile shape by bending, which is bent over at least one flange region, at least for part of the flange region width, in multiple layers, preferably double-layered. The multi-layered material accumulates in the area or areas that are particularly important for the load bearing. The web of the profile beam, which is only of secondary importance for the load absorption, can be thinner than in the case of conventional formwork crossbeam profile beams, so that a lighter structure is achieved for a given or required load carrying capacity. In addition, sheets are conveniently and inexpensively available in high strengths, so that also from this point of view - for a given or required Load carrying capacity - a lower weight and a lower price per unit length of the profile beam can be achieved. In addition, one is freer in the shape of the cross section of the profile beam. The high strength of the profile support, which can be achieved in a manner that is favorable to manufacture, also makes it easy to accept the weakening, which in principle is associated with the continuous provision of perforations. The term "double-layered" does not mean that one would be limited to a two-layered sheet in the at least one flange area, although this is preferred. More than two layers are also possible. It is not imperative, but preferred, to make a large part of the flange region width that is possible in terms of manufacture in multiple layers in order to have the greatest advantage of the associated increase in strength.

Es ist bevorzugt, daß der Profilträger im Querschnitt im wesentlichen U-förmig ist. Das U-Profil hat Vorteile insbesondere hinsichtlich des Preises, des Lasttragvermögens und der einfachen Kombinierbarkeit zu einem Querriegel aus zwei U-Profilträgern.It is preferred that the profile carrier is substantially U-shaped in cross section. The U-profile has advantages in particular in terms of price, load-bearing capacity and the ease of combining it into a crossbeam made of two U-profile beams.

Vorzugsweise sind die Flanschbereiche des Profilträgers ungelocht. Bei Profilträgern für Querriegel nehmen die Flanschbereiche einen Großteil der Lasten, insbesondere des Biegemoments, auf, so daß eine Ausbildung mit nicht durch Lochungen geschwächten Flanschbereichen günstig ist. Die erfindungsgemäß gewünschten, bequemen Verbindungsmöglichkeiten zwischen Profilträgern lassen sich durch die beschriebenen Lochungen im Steg gut verwirklichen.The flange regions of the profile carrier are preferably unperforated. In the case of profile beams for crossbeams, the flange areas absorb a large part of the loads, in particular the bending moment, so that training with flange areas not weakened by perforations is favorable. The convenient connection options between profiled beams desired according to the invention can be easily achieved through the perforations described in the web.

Obwohl es prinzipiell möglich ist, einen Querriegel aus nur einem der beschriebenen Profilträger zu benutzen, ist es bevorzugt, den Querriegel mit zwei Profilträgern aufzubauen. Besonders günstig ist es, zwei Profilträger vorzusehen, die mit den Stegaußenseiten einander zugewandt und mit Abstand zwischen den Stegaußenseiten angeordnet sind. Dabei kann man ohne eine unmitellbare Verbindung, insbesondere durch Laschenverschweißung, der beiden Profilträger arbeiten. Die funktionelle Zusammenfassung der beiden Profilträger zu einem Querriegel ergibt sich dann vorzugsweise durch die Befestigung der beiden Profilträger an den Schalungsplatten-Trägern. Eine andere Möglichkeit besteht darin, Klammern vorzusehen, die jeweils formschlüssig hinter abgebogene Überstände der beiden Profilträger greifen, so daß bei entsprechender Gestaltung der Klammern eine formschlüssige gegenseitige Festlegung der Profilträger entsteht. Besonders bevorzugt ist es, wenn die beiden Profilträger durch Abstandsbolzen miteinander verbunden sind. Hierbei finden insbesondere die Löcher der mindestens einen Lochreihe neben der Langlochreihe eine zusätzliche Verwendung, und eine derartige, insbesondere im Herstellerwerk vorgenommene Verbindung von zwei Profilträgern zu einem Querriegel ist herstellungsgünstiger als die bisher übliche Laschenverschweißung von zwei parallelen Profilträgern.Although it is possible in principle to use a crossbar made from only one of the profile beams described, it is preferred to construct the crossbar with two profile beams. It is particularly expedient to provide two profiled beams which face one another with the web outer sides and are arranged at a distance between the web outer sides. You can work without an immediate connection, especially by welding tabs, the two profile beams. The functional combination of the two profile beams into a crossbeam is then preferably obtained by fastening the two profile beams to the formwork panel beams. Another possibility is to provide brackets, each of which positively engages behind the bent protrusions of the two profiled beams, so that if the clamps are designed appropriately, the profiled beams are mutually positively fixed. It is particularly preferred if the two profiled beams are connected to one another by spacer bolts. Here, in particular, the holes of the at least one row of holes are used in addition to the row of elongated holes, and such a connection, in particular made in the manufacturer's plant, of two profile beams to form a crossbar is less expensive to manufacture than the previously common tab welding of two parallel profile beams.

Wenn der erfindungsgemäß vorgesehene Profilträger aus gebogenem bzw. abgekantetem Blech hergestellt wird, geht man vorzugsweise so vor, daß ein Blechstreifen vom Coil abgewickelt und ohne Beachtung der gerade herzustellenden Profilträgerlänge durch Stanzen mit den Langlöchern und den zusätzlichen Löchern versehen wird. Anschließend wird von dem Blechstreifen ein Abschnitt mit der Länge des Profilträgers, vorzugsweise durch Stanzen, abgetrennt. Danach wird der Abschnitt in die Profilgestalt gebogen bzw. gekantet. Dies ist eine besonders rationelle Herstellungstechnik.If the profiled support provided according to the invention is produced from bent or folded sheet metal, the procedure is preferably such that a sheet metal strip is unwound from the coil and punched with the elongated holes and the additional holes without taking into account the length of the profiled member to be produced. Then a section of the length of the profile beam is made from the sheet metal strip, preferably separated by punching. Then the section is bent or folded into the profile shape. This is a particularly efficient manufacturing technique.

Die Erfindung und Weiterbildungen der Erfindung werden im folgenden anhand eines zeichnerisch dargestellten Ausführungsbeispiels noch näher erläutert. Die Zeichnung zeigt
   eine perspektivische Darstellung eines Ausschnitts einer Betonierungsschalung bei weggelassener Schalungsplatte, wobei man einen Querriegel aus zwei zusammengefaßten, durchgehend gelochten Blech-Profilträgern und eine Verbindungsklammer zwischen dem Querriegel und einem exemplarischen Schalungsplatten-Träger aus Holz erkennt.The invention and further developments of the invention are explained in more detail below with reference to an exemplary embodiment shown in the drawing. The drawing shows
a perspective view of a section of a concreting formwork with the formwork panel omitted, with a crossbar consisting of two combined, continuously perforated sheet metal girders and a connecting bracket between the crossbar and an exemplary formwork panel girder made of wood.

In Fig. 1 erkennt man einen Schalungsplatten-Träger 2 aus Holz mit Doppel-T-Profil, der exemplarisch aus einer Reihe von parallelen Trägern gezeichnet ist. Die zur Erhöhung der Übersicht nicht eingezeichnete Schalungsplatte muß man sich gegen die in Fig. 1 oben befindliche Flanschoberfläche des Trägers 2 gelegt und an den parallelen Trägern 2 beispielsweise durch Nageln befestigt denken.In Fig. 1 you can see a formwork panel support 2 made of wood with double T-profile, which is drawn as an example from a series of parallel beams. The formwork panel, which is not shown in order to increase the overview, must be placed against the flange surface of the beam 2 located at the top in FIG. 1 and must be attached to the parallel beams 2, for example by nailing.

Die Träger 2 sind auf der der Schalungsplatte abgewandten Seite durch mehrere parallele, in größerem Abstand angeordnete Querriegel 4 aus Stahl miteinander verbunden, von denen einer in Fig. 1 gezeichnet ist. Der gezeichnete Querriegel 4 besteht aus zwei parallelen Profilträgern 6, die Rücken an Rücken mit Abstand zueinander angeordnet sind. Die beiden Profilträger 6 sind identisch aufgebaut. Sie haben jeweils im wesentlichen ein U-förmiges Profil mit einem in Fig. 1 oberen, ersten Flanschbereich 8, einem in Fig. 1 unteren, zweiten Flanschbereich 10 und einem Steg 12 zwischen den beiden Flanschbereichen 8, 10. Jeder Profilträger 6 besteht aus Blech mit einer Blechstärke von wenigen Millimetern. Am Übergang vom Steg 12 in den ersten Flanschbereich 6 ist das Blech rechtwinklig zu einer Seite umgebogen. Am im Querschnitt seitlichen Ende des ersten Flanschbereichs 6 ist das Blech um insgesamt 180° nach außen umgebogen bzw. zurückgebolgen, wobei im einzelnen zunächst eine leichte Abbiegung in Richtung Stegmitte, dann eine Abbiegung nach oben parallel zum Steg und dann eine rechtwinklige Abbiegung zurück vorhanden sind, so daß am Flanschbereichsende ein im wesentlichen dreieckförmiger Hohlraum entsteht. Die in der beschriebenen Weise gebildete, äußere Blechlage des ersten Flanschbereichs 6 geht ein Stück über den Steg 12 hinweg und ist am Ende nach unten parallel zum Steg 12 kurz umgebogen. Man sieht, daß auf diese Weise ein doppellagiger, erster Flanschbereich 8 sowie auf der dem U abgewandten Außenseite des Stegs 12 ein Überstand 14 mit einem Fortsatz 15 gebildet sind. Der zweite Flanschbereich 10 und ein diesem zugeordneter Überstand sind ganz analog ausgebildet, so daß der Profilträger 6 insgesamt symmetrisch zu einer Mittelbene ist, die sich in der Mitte des Stegs 6 parallel zu den beiden Flanschberiechen 8, 10 erstreckt. Die beiden Profilträger 6 sind identisch ausgebildet und mit ihren Stegaußenseiten mit gegenseitigem Abstand einander zugewandt.The beams 2 are connected to one another on the side facing away from the formwork panel by a plurality of parallel steel crossbeams 4 arranged at a greater distance, one of which is shown in FIG. 1. The drawn crossbar 4 consists of two parallel profile beams 6, which are arranged back to back at a distance from each other. The two profile beams 6 are constructed identically. They are each essentially U-shaped Profile with an upper, first flange area 8 in FIG. 1, a lower, second flange area 10 in FIG. 1 and a web 12 between the two flange areas 8, 10. Each profile support 6 consists of sheet metal with a sheet thickness of a few millimeters. At the transition from the web 12 into the first flange area 6, the sheet is bent at right angles to one side. At the cross-sectional side end of the first flange region 6, the sheet is bent or bent back outwards by a total of 180 °, with a slight bend towards the center of the web, then a bend upwards parallel to the web and then a right-angled bend back , so that an essentially triangular cavity is formed at the end of the flange region. The outer sheet-metal layer of the first flange region 6 formed in the manner described goes a little way over the web 12 and is bent downward briefly parallel to the web 12 at the end. It can be seen that in this way a double-layered, first flange region 8 and a projection 14 with an extension 15 are formed on the outside of the web 12 facing away from the U. The second flange region 10 and an overhang assigned to it are designed quite analogously, so that the profile carrier 6 is overall symmetrical to a central plane which extends in the middle of the web 6 parallel to the two flange regions 8, 10. The two profiled beams 6 are of identical design and face one another with their web outer sides at a mutual distance.

Man erkennt ferner, daß in der Mitte des Stegs 12 längs des jeweiligen Profilträgers 6 eine Reihe von Lochungen 16 vorgesehen ist. Jede Lochung 16 ist als Langloch in Richtung der Profilträgerlänge ausgebildet, wobei die Enden der Langlöcher trapezförmig sind. Ferner erkennt man in jedem Profilträger 6 eine in Fig. 1 obere Reihe von Löchern 18 und eine in Fig. 1 untere Reihe von Löchern 20. Die Löcher 18, 20 sind rund. Sie sind, wenn man längs des jeweiligen Profilträgers fortschreitet, jeweils zwischen den Lochungen 16 vorgesehen. Sowohl die Lochungen 16 als auch Löcher 18, 20 sind, gemessen in Längsrichtung des Profilträgers 6 und von Lochungsmitte zu Lochungsmitte bzw. von Lochmitte zu Lochmitte, in einem Rastermaß a angeordnet. Auch zwischen den beiden Reihen der Löcher 18, 20 beträgt, gemessen rechtwinklig zur Längsrichtung des Profilträgers 6 und von Lochmitte zu Lochmitte, der Abstand a entsprechend dem Rastermaß. Infolgedessen sind beispielsweise rechtwinklige Verbindungen zwischen zwei Querriegeln 4 mit einem Kupplungsstück, wie es auch für Längsverbindungen zwischen zwei Querriegeln 4 eingesetzt wird, problemlos möglich.It can also be seen that a series of perforations 16 is provided in the middle of the web 12 along the respective profiled support 6. Each perforation 16 is designed as an elongated hole in the direction of the profile beam length, the ends of the elongated holes being trapezoidal. Also recognizes one in each profile carrier 6 an upper row of holes 18 in FIG. 1 and a lower row of holes 20 in FIG. 1. The holes 18, 20 are round. They are provided between the perforations 16, if one proceeds along the respective profile beam. Both the perforations 16 and the holes 18, 20, measured in the longitudinal direction of the profile support 6 and from the center of the perforation to the center of the hole or from the center of the hole to the center of the hole, are arranged in a grid dimension a. Also between the two rows of holes 18, 20, measured at right angles to the longitudinal direction of the profile carrier 6 and from the center of the hole to the center of the hole, the distance a corresponds to the grid dimension. As a result, for example, right-angled connections between two crossbars 4 with a coupling piece, as is also used for longitudinal connections between two crossbars 4, are possible without any problems.

Es ist hervorzuheben, daß bei den Profilträgern 6 die Lochungen 16 und die Löcher 18, 20 auf der gesamten Profilträgerlänge, von der in Fig. 1 nur ein Teil zu sehen ist, vorhanden sind und nicht nur an den Profilträgerenden, und daß Normlängen ein ganzzahliges Vielfaches des Rastermaßes a sind.
Ferner erkennt man in Fig. 1 eine Klammer 22, die im wesentlichen aus einem Basisteil 24, einem Schraubbolzen 26 mit Mutter und einem Klemkörper 28 besteht. Das Basisteil 24 ist aus einem kräftigen, trapezförmigen Blechteil durch Stanzen und Umbiegen hergestellt. Die lange Grundseite dieses Trapezes ist durch Stanzen gezahnt, damit sie sich in die Rückseite des in Fig. 1 unteren Flansches des Trägers 2 eingraben kann. Der obere Endbereich dieses Trapezes ist rechtwinklig nach außen umgebogen. Im unteren Mittenbereich dieses Trapezes ist ein trapezförmiger Blechlappen an drei Seiten von dem Blechteil freigeschnitten und um die lange Trapezseite rechtwinklig nach außen gebogen, parallel zum oberen umgebogenen Blechbereich. Der nicht umgebogene Blechbereich liegt am Steg des Trägers 2 an. Die beiden umgebogenen Blechbereiche haben jeweils ein Loch. Durch die beiden fluchtenden Löcher führt der Schraubbolzen 26 in Fig. 1 nach unten zwischen die beiden Profilträger 6. Der Klemmkörper 28 hat die Form eines oben offenen U mit zwei Umbiegebereichen 30, die jeweils in den Spalt zwischen dem Fortsatz 15 und dem Steg 12 greifen und eine formschlüssige Zusammenfassung der Profilträger 6 mit definiertem Abstand schaffen. Der Schraubbolzen durchgreift den Klemmkörper 28 durch ein Loch, wobei ein nicht in der Zeichnung erkennbarer Schraubbolzenkopf von unten gegen den Klemmkörper 28 anliegt. Wenn von oberhalb des Basisteils 24 die Mutter des Schraubbolzens 26 festgezogen wird, wird der Klemmkörper 28 von unten gegen due Überstände 14 bzw. die Fortsätze 15 der beiden Profilträger 6 gezogen, wobei die ersten Flanschbereiche 8 der beiden Profilträger 6 gegen den in Fig. 1 unteren Flansch des Trägers 2 geklemmt werden. Die Führung des Schraubbolzens 26 durch zwei beabstandete Löcher des Basisteils 24 verhindert eine Verformung des Basisteils unter der Wirkung der von der Mutter ausgeübten Klemmkraft und ein Verkanten des Basisteils 24.It should be emphasized that the perforations 16 and the holes 18, 20 are present in the profiled beams 6 over the entire length of the profiled beam, of which only a part can be seen in FIG. 1, and not only at the ends of the profiled beam, and that standard lengths are an integer Are multiples of the grid dimension a.
1 shows a bracket 22, which essentially consists of a base part 24, a screw bolt 26 with nut and a clamping body 28. The base part 24 is made from a strong, trapezoidal sheet metal part by punching and bending. The long base of this trapezoid is toothed by punching so that it can dig into the back of the lower flange of the carrier 2 in FIG. 1. The upper end of this trapezoid is at right angles bent outside. In the lower central area of this trapezoid, a trapezoidal sheet metal tab is cut free from the sheet metal part on three sides and bent outward at right angles around the long trapezoidal side, parallel to the upper bent sheet metal area. The non-bent sheet metal area rests on the web of the carrier 2. The two bent sheet metal areas each have a hole. Through the two aligned holes, the screw bolt 26 in FIG. 1 leads downward between the two profile supports 6. The clamping body 28 has the shape of an open U with two bending areas 30, each of which engages in the gap between the extension 15 and the web 12 and create a form-fitting summary of the profile carrier 6 with a defined distance. The screw bolt passes through the clamping body 28 through a hole, a screw bolt head (not shown in the drawing) abutting against the clamping body 28 from below. If the nut of the screw bolt 26 is tightened from above the base part 24, the clamping body 28 is pulled from below against the projections 14 or the extensions 15 of the two profile carriers 6, the first flange regions 8 of the two profile carriers 6 against the one in FIG. 1 lower flange of the carrier 2 are clamped. The guiding of the screw bolt 26 through two spaced-apart holes in the base part 24 prevents deformation of the base part under the action of the clamping force exerted by the nut and tilting of the base part 24.

Der Klemmkörper 28 ist, wenn man den an den Profilträgern 6 angebrachten Zustand betrachtet, in Längsrichtung der Profilträger 6 so kurz, daß er - um etwa 90° um die Schraubbolzenachse gedreht - zwischen den beiden Profilträgern 6 hindurchpaßt. Somit kann der Klemmkörper 28 bequem in Fig. 2 von oben her zwischen die beiden Profilträger 6 eingebracht, dann gedreht und dann klemmend nach oben gezogen werden. Der untere Kopf des Schraubbolzens 26 kann einen Vierkant haben, der mit einem Vierkantloch des Klemmkörpers 28 oder, wie gezeichnet, mit einem Schlitz des Klemmkörpers 28 verdrehungsverhindernd zusammenwirkt.The clamping body 28, when viewed in the state attached to the profile beams 6, is so short in the longitudinal direction of the profile beams 6 that it rotates between the two profile beams 6 by about 90 ° about the bolt axis. The clamping body 28 can thus be conveniently introduced from above between the two profile supports 6 in FIG. 2, then rotated and then clamped be pulled up. The lower head of the bolt 26 can have a square, which cooperates with a square hole of the clamping body 28 or, as shown, with a slot of the clamping body 28 to prevent rotation.

Der in Fig. 1 gezeichnete Schalungsplatten-Träger 2 ist als Träger mit durchgehendem Steg zwischen seinen beiden Flanschen ausgebildet. Es ist ein besonderes Kennzeichen der beschriebenen Klammer 22, daß sie neben einem durchgehenden Steg des Trägers 2 angreifen kann und nicht auf eine Ausbildung des Trägers 2 als Gitterträger angewiesen ist. Die Klammer 22 kann jedoch auch bei einem Gitterträger 2 eingesetzt werden.The formwork panel support 2 shown in FIG. 1 is designed as a support with a continuous web between its two flanges. It is a special feature of the clamp 22 described that it can engage next to a continuous web of the carrier 2 and does not depend on the carrier 2 being designed as a lattice carrier. However, the bracket 22 can also be used with a lattice girder 2.

Claims (10)

  1. A shuttering for concrete work, comprising the following features:
    (a) there are provided at least two adjacent shuttering panels each supported on the rear side thereof by a plurality of spaced apart shuttering panel beams;
    (b) each of said two shuttering panels has at least one crossbar (4) connecting on the rear side a plurality of shuttering panel beams (2) of the shuttering panel;
    (c) the crossbar (4) comprises at least one crossbar profiled beam (6) of steel, including a first flange portion (8), a second flange portion (10) and a web (12) between the two flange portions (8, 10);
    (d) in the end portions of the crossbar profiled beam (6), the web (12) has a plurality of perforations formed therein, spaced apart in the longitudinal direction; and
    (e) two aligned crossbar profiled beams (6) of the two shuttering panels are connected to each other in aligned manner by means of a coupling piece and using perforations of said two crossbar profiled beams,
    characterized in
    (f) that said crossbar profiled beam (6) is provided in said web (12) throughout the length thereof both with a row of elongate holes (16) spaced apart at a grating distance (a) and, at least on one side of said row of elongate holes, with a row of holes (18; 20) spaced apart at a grating distance (a), the grating distance (a) of the row of elongate holes and the grating distance (a) of the at least one row of holes each being substantially an integral fraction of the profiled beam length; and
    (f) that, for aligned connection of the two crossbar profiled beams (6), the connection between the coupling piece and the particular crossbar profiled beam (6) is established selectively by means of at least one wedge driven in through one of said elongate holes (16) and a perforation of said coupling piece, and/or by means of a screw-type connection making use of said holes (18; 20).
  2. A shuttering for concrete work according to claim 1,
    characterized in that in said profiled beam (6) the grating distance (a) of the row of elongate holes is equal to the grating distance (a) of the at least one row of holes.
  3. A shuttering for concrete work according to claim 1 or 2,
    characterized in that said profiled beam (6) is formed on both sides of said row of elongate holes with one row of holes each, said two rows of holes being spaced apart in a transverse grating distance (a) corresponding to the longitudinal grating distance (a) of said rows of holes.
  4. A shuttering for concrete work according to any one of claims 1 to 3,
    characterized in that said profiled beam (6) has the holes (18, 20) provided therein such that the centres thereof are at such locations of the profiled beam length where no elongate hole (16) is present.
  5. A shuttering for concrete work according to any one of claims 1 to 4,
    characterized in that said profiled beam (6) is made from massive rolled section material.
  6. A shuttering for concrete work according to any one of claims 1 to 4,
    characterized in that said profiled beam (6) consists of sheet metal which has been bent into the profile shape and which, at least in one flange portion (8, 10) and for at least part of the flange portion width, is bent over so as to form a multi-layer, preferably a double-layer, structure.
  7. A shuttering for concrete work according to any one of claims 1 to 6,
    characterized in that said profiled beam (6) is substantially of U-shaped cross-section.
  8. A shuttering for concrete work according to any one of claims 1 to 7,
    characterized in that the flange portions (8; 10) of said profiled beam (6) are unperforated.
  9. A shuttering for concrete work according to any one of claims 1 to 8,
    characterized in that the crossbar (4) is composed of two profiled beams (6) which are provided with their web outsides facing each other and with a distance between the web outsides.
  10. A shuttering for concrete work according to claim 9,
    characterized in that the two profiled beams (6) of the crossbar (4) are connected to each other by spacer bolts.
EP87119380A 1987-01-08 1987-12-30 Shuttering for concrete work Expired - Lifetime EP0274133B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3700429 1987-01-08
DE19873700429 DE3700429A1 (en) 1987-01-08 1987-01-08 STEEL CROSSBAR LATCH FOR CONNECTING SEVERAL SHEET PANEL CARRIERS

Publications (3)

Publication Number Publication Date
EP0274133A2 EP0274133A2 (en) 1988-07-13
EP0274133A3 EP0274133A3 (en) 1989-02-01
EP0274133B1 true EP0274133B1 (en) 1994-09-14

Family

ID=6318582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87119380A Expired - Lifetime EP0274133B1 (en) 1987-01-08 1987-12-30 Shuttering for concrete work

Country Status (4)

Country Link
EP (1) EP0274133B1 (en)
AT (1) ATE111551T1 (en)
DE (2) DE3700429A1 (en)
ES (1) ES2063736T3 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE102009032423B4 (en) * 2009-07-09 2016-06-02 Voestalpine Krems Finaltechnik Gmbh Horizontal shelf support, which is designed for horizontal installation in a rack, and method for producing such a horizontal shelf carrier
EP3075924A1 (en) 2015-03-30 2016-10-05 Voestalpine Krems GmbH Cross bar for fixing formwork supports

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Publication number Priority date Publication date Assignee Title
DE20318912U1 (en) * 2003-12-05 2004-03-04 Doka Industrie Gmbh formwork table
CN110469052B (en) * 2019-08-20 2022-03-18 北京市政路桥管理养护集团有限公司 Steel-concrete composite beam connecting piece, steel-concrete composite beam and manufacturing method

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DE2065371A1 (en) * 1970-12-22 1973-10-04 Maier Josef ARRANGEMENTS OF HOLES IN SUPPORTING STRUCTURES FOR FORMWORK, FORMWORK SCAFFOLDING OD. DGL
DE2213622C2 (en) * 1972-03-21 1983-11-03 Tropimix AG, Zug Support girder for formwork or scaffolding - has interconnected, interfacing recesses with enclosing collars on each plate-shaped support member
DD101721A1 (en) * 1973-01-29 1973-11-12
DE2421918A1 (en) * 1974-05-07 1975-11-27 Arbed Profiled sections from cold rolled sheet - sections reinforced by folding sheet back on itself over inlaid strip
DE2631213A1 (en) * 1976-07-12 1978-01-19 Grebau Greschbach Ind ROOF FAT
CH619035A5 (en) * 1977-01-24 1980-08-29 Oskar Kaestli Support consisting of bent-off sheet steel
GB2127082B (en) * 1982-09-16 1986-03-12 Kwikform Ltd Formwork soldier
DE8230619U1 (en) * 1982-11-02 1984-05-10 Streif AG, 5461 Vettelschoß CARRIER PROFILE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009032423B4 (en) * 2009-07-09 2016-06-02 Voestalpine Krems Finaltechnik Gmbh Horizontal shelf support, which is designed for horizontal installation in a rack, and method for producing such a horizontal shelf carrier
EP3075924A1 (en) 2015-03-30 2016-10-05 Voestalpine Krems GmbH Cross bar for fixing formwork supports
WO2016156444A1 (en) 2015-03-30 2016-10-06 Voestalpine Krems Gmbh Concrete formwork and crossmember therefor

Also Published As

Publication number Publication date
EP0274133A2 (en) 1988-07-13
EP0274133A3 (en) 1989-02-01
DE3750545D1 (en) 1994-10-20
ATE111551T1 (en) 1994-09-15
DE3700429A1 (en) 1988-07-28
ES2063736T3 (en) 1995-01-16

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