EP0670944B1 - Ceiling boarding support - Google Patents

Ceiling boarding support Download PDF

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Publication number
EP0670944B1
EP0670944B1 EP93922495A EP93922495A EP0670944B1 EP 0670944 B1 EP0670944 B1 EP 0670944B1 EP 93922495 A EP93922495 A EP 93922495A EP 93922495 A EP93922495 A EP 93922495A EP 0670944 B1 EP0670944 B1 EP 0670944B1
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EP
European Patent Office
Prior art keywords
support
projections
molding according
plastic
carrier
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
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EP93922495A
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German (de)
French (fr)
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EP0670944A1 (en
Inventor
Arthur Schwörer
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Peri GmbH
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Peri GmbH
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Application filed by Peri GmbH filed Critical Peri GmbH
Priority to EP96104314A priority Critical patent/EP0718453B1/en
Publication of EP0670944A1 publication Critical patent/EP0670944A1/en
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    • 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
    • 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
    • E04G11/38—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 for plane ceilings of concrete
    • 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

Definitions

  • the invention relates to a slab formwork for concrete with slab formwork elements and their girders, the girders having two rows of spaced apart projections which project substantially upwards and outwards and are spaced apart from one another.
  • a support for concrete slab formwork of this type is known (see. Fig. 4, 5; description column 14, line 26 to column 15, line 20) with flanges running along its long sides for laying on as Frame formwork panels or formwork elements.
  • the flanges run approximately at half the height of the beams.
  • the surface of the formwork facing of the formwork element facing the concrete lies in one plane with the upper surface of the beams, so that the beams form on the underside of the finished concrete ceiling. This is often undesirable.
  • the supports required for this are often equipped with a drop head, so that after a certain time the beams with the formwork elements can be lowered and switched off and only the head of the prop continues to support the ceiling.
  • the invention has for its object to carry out a beam for a ceiling formwork so that a uniform concrete image is formed on the underside of the ceiling and the application of formwork elements is easy.
  • This object is achieved in that at the two edges of the upper surface of the carrier a series of substantially upward and outwardly projecting, spaced apart projections is provided, which are suitable for fixing or fixing formwork elements, and that Distance between the projections corresponds to twice the distance of a stop arranged on the underside of the formwork element from the edge of the formwork element and the distance of the projections from one another corresponds to a side length of the formwork element to be placed or a fraction of this dimension.
  • This arrangement has the advantage that the formwork elements in the gap between two projections already lie close together when the formwork elements are placed on them, so that it is not necessary to adjust the formwork elements.
  • the formwork elements are on top of the beam, so that it is no longer reflected on the underside of the concrete.
  • a particular advantage of the invention is that it can be used to build slab formwork in which all formwork elements can be removed when the girder is lowered with the help of a drop head.
  • the sidewalk slabs must always be placed on their base so that the protrusions protruding downward from the slab corners engage in the spaces provided for this purpose in the rows of teeth.
  • a slightly shifted laying of the sidewalk slabs in the longitudinal direction of the underlay is not expedient, because then the downward protruding projections at the corners of the sidewalk slabs no longer engage in these recesses and therefore the slabs are not fixed in the longitudinal direction of the underlay or are not flush with the slabs, whose projections engage in the recesses.
  • a space between a longitudinal row of formwork elements and the adjacent longitudinal row of formwork elements can can be bridged by cover plates or other known measures.
  • the distance between the two rows of projections corresponds to twice the distance of a stop provided on the underside of the formwork element from the edge of the formwork element.
  • the stop provided on the underside of the formwork element can be realized by a special part.
  • the inner surface of the frame leg of the formwork element serves as such a stop.
  • the distance from this inner surface to the edge of the formwork element can be greater than the rear surface of the frame of the formwork element if the edge of the formwork element protrudes beyond the frame leg and, for example, a drip nose is provided on the projecting edge.
  • the distance between two adjacent projections in the longitudinal rows can have a different dimension than the distance between the two longitudinal rows if the corresponding dimension is different at different edges of the formwork element.
  • the distance between two successive projections in a row and the distance between the two rows each correspond to twice the thickness of the part of the frame engaging between the projections formwork elements to be placed on the carrier.
  • the projections taper upwards, so that the gap between the projections has V-shaped flanks which widen upwards and therefore the frame legs are guided into the correct position when the formwork elements are placed on them.
  • a support for ceiling formwork elements is characterized in that a plastic layer of preferably tough-elastic plastic is provided at least on its upper surface.
  • a plastic layer of preferably tough-elastic plastic is provided at least on its upper surface.
  • Such a layer of tough elastic plastic is hardly injured when cleaning the carrier.
  • this plastic layer can be provided in the simplest way with the aforementioned projections. For example, the plastic layer can be applied to the carrier by extrusion the projections can then be milled out.
  • the plastic layer consists of a prefabricated plastic strip which is attached to the carrier.
  • a prefabricated plastic strip can be provided with the aforementioned projections in a particularly simple manner.
  • the plastic strip can even be exchangeably attached to the carrier. This is not only advantageous when the plastic strip is renewed, but the supports can also be converted if other ceiling formwork elements are to be placed on them, in which the distance between the inner surface of the frame or a stop from the edge of the ceiling formwork element is different than in the case of previously placed formwork elements on the carrier.
  • a prefabricated strip can be attached to the carrier in various ways, for example the strip can be riveted or glued to the carrier.
  • the carrier has at least one undercut on its side walls, in which the bar for fastening, z. B. latching, engages.
  • the bar can be pushed onto the carrier in the longitudinal direction.
  • the plastic strip can be attached to the carrier by nailing.
  • the carrier 1 shown in FIGS. 1, 2 and 3 is made of an aluminum alloy in the extrusion process. Its cross section is designed as a rectangular hollow profile. On the two longitudinal edges of the top 2 of the carrier 1, a row extending over the entire length of the carrier 1 is formed obliquely upwards outwardly projecting projections 3, 4. Together with the upper side 2 of the carrier 1, they form a groove 5 over the entire length of the carrier 1.
  • the groove 5 serves as a receptacle for formwork elements 11, 29. At the bottom, it has twice the width of a frame leg 14, 15 of one running parallel to the longitudinal axis of the carrier formwork element 11, 29 to be inserted on the side of the formwork element facing away from the formwork skin.
  • the projections 3 and 4 delimit cutouts 6, which taper towards the bottom. Their clear width at the bottom corresponds to twice the width of a frame leg 16, 17 (FIG. 3) running transversely to the longitudinal axis of the beam of a formwork element 11, 30 to be inserted into the groove 5 on the side facing away from the formwork skin.
  • the recesses 6 are arranged so that there is a grid dimension when a support structure for formwork elements for formwork of a ceiling is constructed from beams 1 and suitable supports.
  • the spacing of the cutouts 6 from one another corresponds to a fraction of the corresponding dimension of a formwork element 30.
  • a seventh the width of a shell element 30.
  • the carrier 1 with each provided a suspension device which is shown in Fig. 3 for the sake of clarity as a simple suspension bolt 7, which runs across the two side panels 8, 9 of the carrier 1 and protrudes on both sides.
  • the formwork elements 11 and 29 have a frame 12 to which a formwork skin 13 is fastened.
  • the frame 12 consists, for example, of welded aluminum profiles.
  • one leg 14, 15 of the frame 12 of two adjoining formwork elements 11, 29 are received next to each other (see FIG. 4).
  • the groove 5 tapers downwards.
  • the formwork elements 11, 29 lie against one another with some tension.
  • the cutouts 6 in the projections 3, 4 of the groove 5 are penetrated in the transverse direction to the carrier 1 by legs 16, 17 of the frame 12 each of two formwork elements 11, 30 (cf. FIG. 3). Since the cutouts 6 also taper downwards, the frame legs 16, 17 also abut one another. By choosing the clear width of the recesses 6 on the upper side 2 of the carrier 1, the frame legs 16, 17 of the formwork elements 30 and 11 can also abut one another under tension (FIG. 3).
  • the carrier 1 are suspended in suspension parts 18, 19 of a support 20.
  • the hanging parts 18, 19 are hook-shaped; they engage in the interior of the hollow profile of the carrier 1 and each take up a suspension bolt 7.
  • the suspension parts 18, 19 can also be designed such that they receive a suspension bolt 7 on the outside of the carrier 1 at its laterally projecting ends.
  • the ends of the beams 1 are first suspended in the supports 20 such that several rows of beams 1 and supports 20 are formed next to one another at a distance of the length of the formwork elements to be placed.
  • the length of the recess 6 corresponds to twice the thickness of the part 16, 17 of the frame 12 engaging in it, of the formwork elements 30, 33 to be placed on the carrier 1.
  • the recess 6 must have twice the length of the dimension from the inner surface of the frame leg 16 to the edge of the formwork element.
  • Fig. 5 shows a cross section through another embodiment of a carrier. It has a closed rectangular cross section divided by a wall 40.
  • the lower edge of the cross-section and the ends of the carrier have a special shape, which allow the use of the carrier in connection with different support heads.
  • the carrier At its upper edge, the carrier has a smooth surface 41, in the longitudinal center plane of which extends over the entire length of the carrier extending longitudinal groove 42 is provided, the flanks of which are at their upper end a smaller distance apart than the largest diameter of the groove.
  • the upper wall 43 of the carrier 44 protrudes beyond the side walls 45 of the carrier and has approximately dovetail-shaped cutouts 46 there. This is followed by a downwardly projecting extension 47, which can be designed as a drip nose.
  • a plastic strip 50 shown in FIG. 6, is pushed onto the upper surface 41 of the carrier 44, so that its central projection 49, which projects below the flat section 48, engages in the groove 42 and holds the section 48 there on the surface 41.
  • the strip 50 has on its long sides downwardly extending limbs 51 which come to rest on the extensions 47 and cover them when the strip 44 is pushed onto the carrier 44.
  • Inwardly projecting projections 52 engage the dovetail cutouts 46 after pushing on the strip 50 and hold the legs 51 there in close contact with the extensions 47.
  • the strip 50 has a row of projections 53 on each of the two edges of the flat strip section 48 and 54, the shape and spacing of which correspond to the projections 3 and 4 according to the embodiment according to FIGS. 1 and 2.
  • the embodiment according to FIGS. 5 and 6 therefore differs from the embodiments according to FIGS. 1 to 4 in that the projections 3 are not molded onto the carrier 44 made of an aluminum alloy, but rather onto a strip 50 made of a tough elastic plastic, which is at the top is attached to the carrier 44.
  • the strip 50 When the strip 50 is pushed onto the carrier 44, the strip section 48 lies more or less close to the top surface 41 of the carrier.
  • the small, post-clearance gaps between the strip section 48 and the support surface 41 allow the section 48 to move against the support surface 41 to a small extent, which is sufficient to allow concrete parts to stick off the section 48.
  • the legs 51 extend laterally beyond the carrier 44 and thereby shield the side surface of the carrier from concrete parts and cement milk.
  • the downwardly projecting projections 47 and the legs 51 form a drip nose at their end, from which cement milk drips and keeps them from the side surfaces of the carrier 44.
  • the distance between the rows of projections 53 and 54 corresponds to the distance between the rows of projections 3 and 4 in the embodiment according to FIGS. 2 and 4, the application of the carriers 44 corresponds to the application of the carriers 1.
  • a carrier is made of wood, a plastic strip, which may also have legs that extend downward to protect the side surfaces of the carrier, can be nailed onto the wooden carrier.
  • the plastic strip 50 protects all surfaces of the carrier that could come into contact with concrete or cement milk splashes, so that before the carrier is reused, only the surface of the viscoplastic plastic has to be cleaned, which is much easier to do than cleaning a metal surface . There is no danger that the surface of the tough elastic plastic will be damaged.
  • the projections prevent the formwork elements from slipping on the supports, so that the formwork elements remain contracted and tightly drawn. If the protrusions are made of plastic, so they can be elastic. The spring effect caused by this elasticity helps to pull the elements tight.
  • Embodiments of the carrier have a length of 2190 mm, a height up to the top 2 of 164 mm and a width of the rectangular hollow profile of 60 mm.
  • the axis dimension of the support structure i.e. H. from the center of one column 20 to the center of the next column 20 is 2250 mm.
  • Another embodiment of the carrier has a length of 1440 mm, the axial dimension is then 1500 mm.
  • the dimension from the center of a recess 6 to the center of the next recess 6 is, for example, 125 mm.
  • more or fewer (metal or wooden) surfaces of the carrier can be encased with a layer of plastic which has a hydrophobic surface.
  • these projections and, if appropriate, the surfaces of the carrier adjoining these projections can be encased with plastic, which in turn can be realized by a plastic strip which can be fastened to the carrier.
  • the projections can not only be sheathed with plastic, but also consist entirely of plastic.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to a support for ceiling boarding components for concrete. At both edges of its upper surface (2,8) there are rows of substantially upwardly and outwardly directed mutually spaced projections (3, 4, 53, 54) suitable for holding or securing ceiling boarding components (11, 29, 30), the gaps between the projections (3, 4, 53, 54) correspond to twice the distance between a stop fitted on the underside of the boarding component and the latter's edge and the distance between the projections (3, 4, 53, 54) is the same as the relevant dimension of the boarding components (11, 29, 30) to be fitted or is a fraction thereof, and the surfaces of the support are at least partially covered with a plastic strip.

Description

Die Erfindung betrifft eine Deckenschalung für Beton mit Deckenschalelementen und deren Trägern, wobei die Träger zwei im Abstand voneinander angeordnete Reihen von im wesentlichen nach oben und außen ragenden im Abstand voneinander angeordneten Vorsprünge aufweisen.The invention relates to a slab formwork for concrete with slab formwork elements and their girders, the girders having two rows of spaced apart projections which project substantially upwards and outwards and are spaced apart from one another.

Aus der DE-PS 30 04 245 ist ein Träger für Beton-Deckenschalungen dieser Art bekannt (vgl. Fig. 4, 5; Beschreibung Spalte 14, Zeile 26 bis Spalte 15, Zeile 20) mit entlang seiner Längsseiten verlaufenden Flanschen zum Auflegen von als Rahmenschaltafeln ausgebildeten Schalelementen oder Paneelen. Die Flansche verlaufen etwa auf der halben Höhe der Träger. Die dem Beton zugewandte Fläche der Schalhaut des Schalelementes liegt in einer Ebene mit der oberen Fläche der Träger, sodaß sich an der Unterseite der fertigen Betondecke die Träger abbilden. Dies ist oft unerwünscht. Die dazu erforderlichen Stützen sind oft mit einem Fallkopf ausgestattet, sodaß nach einer bestimmten Zeit die Träger mit den Schalelementen abgesenkt und ausgeschalt werden können und nur der Kopf der Stütze die Decke weiterhin abstützt.From DE-PS 30 04 245 a support for concrete slab formwork of this type is known (see. Fig. 4, 5; description column 14, line 26 to column 15, line 20) with flanges running along its long sides for laying on as Frame formwork panels or formwork elements. The flanges run approximately at half the height of the beams. The surface of the formwork facing of the formwork element facing the concrete lies in one plane with the upper surface of the beams, so that the beams form on the underside of the finished concrete ceiling. This is often undesirable. The supports required for this are often equipped with a drop head, so that after a certain time the beams with the formwork elements can be lowered and switched off and only the head of the prop continues to support the ceiling.

Um bei dieser bekannten Schalung ein seitliches Abrutschen aufgelegter Schalelemente von den Flanschen zu vermeiden, sind an diesen Flanschen mehrere nach außen und oben weisende Zungen über die Länge des Trägers angeordnet, die den Rahmen eines eingelegten Schalelementes hintergreifen. Beim Auflegen der Schalelemente entsteht oft ein Zwischenraum zwischen dem bereits aufgelegten Schalelement und dem nächstfolgenden Schalelement, der durch Heranschieben des zuletzt eingelegten Schalelementes beseitigt werden muß.In order to prevent the formwork elements placed on the side from slipping off the flanges in this known formwork, a plurality of outward and upward-pointing tongues are arranged on these flanges over the length of the girder, which engage behind the frame of an inserted formwork element. When the formwork elements are put on, there is often a gap between the formwork element already placed and the next formwork element, which must be removed by pushing the last formwork element in place.

Der Erfindung liegt die Aufgabe zugrunde, einen Träger für eine Deckenschalung so auszuführen, daß an der Deckenunterseite ein einheitliches Betonbild entsteht und das Auflegen von Schalelementen einfach ist.The invention has for its object to carry out a beam for a ceiling formwork so that a uniform concrete image is formed on the underside of the ceiling and the application of formwork elements is easy.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß an den beiden Rändern der oberen Fläche des Trägers jeweils eine Reihe von im wesentlichen nach oben und außen ragenden, im Abstand voneinander angeordneten Vorsprünge vorgesehen ist, die zum Festlegen oder Fixieren von Schalelementen geeignet sind, und daß der Abstand zwischen den Vorsprüngen dem doppelten Abstand eines an der Unterseite des Schalelementes angeordneten Anschlages von dem Rand des Schalelementes entspricht und der Abstand der Vorsprünge voneinander einer Seitenlänge des aufzulegenden Schalelementes oder einem Bruchteil dieses Maßes entspricht.This object is achieved in that at the two edges of the upper surface of the carrier a series of substantially upward and outwardly projecting, spaced apart projections is provided, which are suitable for fixing or fixing formwork elements, and that Distance between the projections corresponds to twice the distance of a stop arranged on the underside of the formwork element from the edge of the formwork element and the distance of the projections from one another corresponds to a side length of the formwork element to be placed or a fraction of this dimension.

Diese Anordnung hat den Vorteil, daß die Schalelemente in der Lücke zwischen zwei Vorsprüngen schon beim Auflegen der Schalelemente dicht aneinander anliegen, sodaß ein Zurechtrücken der Schalelemente nicht erforderlich ist. Außerdem liegen die Schalelemente oben auf dem Träger, sodaß sich dieser nicht mehr an der Unterseite des Betons abbildet.This arrangement has the advantage that the formwork elements in the gap between two projections already lie close together when the formwork elements are placed on them, so that it is not necessary to adjust the formwork elements. In addition, the formwork elements are on top of the beam, so that it is no longer reflected on the underside of the concrete.

Durch die Erfindung liegen daher in Längsrichtung des Trägers gesehen wegen der erfindungsgemäßen Bemaßung der Lücke die Schalelemente zwischen zwei Vorsprüngen dicht aneinander. Ein besonderer Vorteil der Erfindung besteht darin, daß mit ihr Deckenschalungen aufgebaut werden können, bei denen beim Absenken der Träger mit Hilfe eines Fallkopfes sämtliche Schalelemente abgenommen werden können.As a result of the invention, seen in the longitudinal direction of the carrier, the formwork elements between two projections lie close together because of the dimensioning of the gap according to the invention. A particular advantage of the invention is that it can be used to build slab formwork in which all formwork elements can be removed when the girder is lowered with the help of a drop head.

Zwar ist durch die US-A-776 419 ein balkenförmiges Auflager für Gehwegplatten bekannt geworden, das an seinen beiden Enden auf in das Erdreich versenkten Pfosten aufliegt und das in der Mitte seiner oberen Fläche zwei Reihen von rechtwinklig nach oben ragende Vorsprünge aufweist, auf die Ränder von benachbarten Gehwegplatten aufgelegt werden. In jeder Reihe sind im Abstand von einer Seitenlänge der Gehwegplatte größere Zwischenräume vorgesehen, in die an den Ecken der Gehwegplatte angeordnete, nach unten ragende Vorsprünge eingreifen können. Diese Unterlagen sind schon allein von ihrer Dimension her nicht mit Trägern für Betonschalelemente für Decken vergleichbar, weil diese Träger eine sehr viel höhere Last aufnehmen müssen als die Unterlagen für Gehwegplatten. Außerdem müssen die Gehwegplatten auf ihre Unterlage stets so aufgelegt werden, daß die an den Plattenecken nach unten ragenden Vorsprünge in die hierfür vorgesehenen Zwischenräume in den Zahnreihen eingreifen. Ein in Längsrichtung der Unterlage etwas verschobenes Auflegen der Gehwegplatten ist nicht zweckmäßig, weil dann die nach unten ragenden Vorsprünge an den Ecken der Gehwegplatten nicht mehr in diese Ausnehmungen eingreifen und daher die Platten in Längsrichtung der Unterlage nicht fixiert sind oder nicht mit den Platten fluchten, deren Vorsprünge in die Aussparungen eingreifen.It is known from US-A-776 419 a beam-shaped support for pavement slabs which rests at both ends on posts sunk into the ground and which has two rows of protrusions protruding at right angles in the middle of its upper surface Edges of adjacent pavement slabs are laid on. In each row, larger spaces are provided at a distance from one side length of the walkway plate, into which downwardly projecting projections arranged at the corners of the walkway plate can engage. The dimensions of these documents alone cannot be compared to beams for concrete formwork elements for ceilings, because these beams have to bear a much higher load than the documents for pavement slabs. In addition, the sidewalk slabs must always be placed on their base so that the protrusions protruding downward from the slab corners engage in the spaces provided for this purpose in the rows of teeth. A slightly shifted laying of the sidewalk slabs in the longitudinal direction of the underlay is not expedient, because then the downward protruding projections at the corners of the sidewalk slabs no longer engage in these recesses and therefore the slabs are not fixed in the longitudinal direction of the underlay or are not flush with the slabs, whose projections engage in the recesses.

Ein Zwischenraum zwischen einer Längsreihe von Schalelementen und der benachbarten Längsreihe von Schalelementen kann durch Abdeckbleche oder andere bekannte Maßnahmen überbrückt werden. Bei einer Ausführungsform der Erfindung entspricht jedoch der Abstand zwischen den beiden Reihen von Vorsprüngen dem doppelten Abstand eines an der Unterseite des Schalelementes vorgesehenen Anschlages von dem Rand des Schalelementes. Dadurch liegen auch quer zur Längsrichtung des Trägers die aufgelegten Schalelemente dicht aneinander. An der Deckenunterseite entsteht dann ein sehr glattes und einheitliches Betonbild.A space between a longitudinal row of formwork elements and the adjacent longitudinal row of formwork elements can can be bridged by cover plates or other known measures. In one embodiment of the invention, however, the distance between the two rows of projections corresponds to twice the distance of a stop provided on the underside of the formwork element from the edge of the formwork element. As a result, the formwork elements placed close to one another transversely to the longitudinal direction of the carrier. A very smooth and uniform concrete appearance is then created on the underside of the ceiling.

Der an der Unterseite des Schalelementes vorgesehene Anschlag kann durch ein besonderes Teil verwirklicht werden. Bei einer Ausführungsform der Erfindung dient als ein solcher Anschlag die Innenfläche des Rahmenschenkels des Schalelementes. Der Abstand von dieser Innenfläche bis zum Rand des Schalelementes kann größer als die rückwärtige Fläche des Rahmens des Schalelementes sein, wenn der Rand des Schalelementes über den Rahmenschenkel hinaussteht und an dem überstehenden Rand beispielsweise eine Tropfnase vorgesehen ist. Dabei kann, je nach der Ausbildung der Schalelemente, der Abstand zwischen zwei einander benachbarten Vorsprüngen in den Längsreihen ein anderes Maß aufweisen wie der Abstand zwischen den zwei Längsreihen, wenn das entsprechende Maß an verschiedenen Rändern des Schalelementes unterschiedlich ist.The stop provided on the underside of the formwork element can be realized by a special part. In one embodiment of the invention, the inner surface of the frame leg of the formwork element serves as such a stop. The distance from this inner surface to the edge of the formwork element can be greater than the rear surface of the frame of the formwork element if the edge of the formwork element protrudes beyond the frame leg and, for example, a drip nose is provided on the projecting edge. Depending on the design of the formwork elements, the distance between two adjacent projections in the longitudinal rows can have a different dimension than the distance between the two longitudinal rows if the corresponding dimension is different at different edges of the formwork element.

Bei einer Ausführungsform der Erfindung, bei der Deckenschalelemente verwendet werden, deren Rand nicht über die Rahmenschenkel übersteht, entspricht der Abstand zwischen zwei in einer Reihe aufeinanderfolgenden Vorsprünge und der Abstand zwischen den beiden Reihen jeweils der doppelten Dicke des zwischen die Vorsprünge eingreifenden Teiles des Rahmens der auf den Träger aufzulegenden Schalelemente.In one embodiment of the invention, in which ceiling formwork elements are used whose edge does not protrude beyond the frame legs, the distance between two successive projections in a row and the distance between the two rows each correspond to twice the thickness of the part of the frame engaging between the projections formwork elements to be placed on the carrier.

Bei einer Ausführungsform der Erfindung verjüngen sich die Vorsprünge nach oben, sodaß die Lücke zwischen den Vorsprüngen V-förmig sich nach oben erweiternde Flanken aufweist und daher beim Auflegen der Schalelemente deren Rahmenschenkel in die richtige Lage geführt wird.In one embodiment of the invention, the projections taper upwards, so that the gap between the projections has V-shaped flanks which widen upwards and therefore the frame legs are guided into the correct position when the formwork elements are placed on them.

Das Reinigen der aus Metall oder Holz bestehenden Träger von Betonresten ist oft zeitraubend und mühsam. Man hat zwar versucht, den Reinigungsprozeß dadurch zu vereinfachen, daß man Metallteile wie z. B. Träger mit einem Pulver beschichtet hat. Die bekannte Pulverschicht ist jedoch relativ weich, sodaß sie beim Abschaben des Betons sehr oft verletzt wird und darunter das blanke Metall zum Vorschein kommt.Cleaning the concrete or metal beams from concrete remains is often time-consuming and tedious. Attempts have been made to simplify the cleaning process in that metal parts such. B. coated carrier with a powder. However, the known powder layer is relatively soft, so that it is very often injured when the concrete is scraped off and the bare metal appears beneath it.

Gemäß einer Ausführungs form der Erfindung ist daher ein Träger für Dekkenschalelemente dadurch gekennzeichnet, daß zumindest auf seiner oberen Fläche eine Kunststoffschicht aus vorzugsweise zähelastischem Kunststoff vorgesehen ist. Eine solche Schicht aus zähelastischem Kunststoff wird beim Reinigen des Trägers kaum verletzt. Darüberhinaus hat sie den Vorteil, daß bei einer Ausführungsform der Erfindung diese Kunststoffschicht auf einfachste Weise mit den vorgenannten Vorsprüngen versehen werden kann. Beispielweise kann die Kunststoffschicht durch Strangpressen auf dem Träger aufgebracht werden, die Vorsprünge können dann ausgefräst werden.According to one embodiment of the invention, a support for ceiling formwork elements is characterized in that a plastic layer of preferably tough-elastic plastic is provided at least on its upper surface. Such a layer of tough elastic plastic is hardly injured when cleaning the carrier. In addition, it has the advantage that, in one embodiment of the invention, this plastic layer can be provided in the simplest way with the aforementioned projections. For example, the plastic layer can be applied to the carrier by extrusion the projections can then be milled out.

Bei Ausführungsformen der Erfindung besteht die Kunststoffschicht jedoch aus einer vorgefertigten Kunststoffleiste, die auf dem Träger befestigt ist. Eine vorgefertigte Kunststoffleiste kann auf besonders einfache Weise mit den vorgenannten Vorsprüngen versehen werden.In embodiments of the invention, however, the plastic layer consists of a prefabricated plastic strip which is attached to the carrier. A prefabricated plastic strip can be provided with the aforementioned projections in a particularly simple manner.

Die Kunststoffleiste kann bei Ausführungsformen der Erfindung sogar austauschbar auf dem Träger befestigt sein. Dies ist nicht nur bei einer Erneuerung der Kunststoffleiste vorteilhaft, sondern es lassen sich die Träger auch umrüsten, wenn auf sie andere Deckenschalelemente aufgelegt werden sollen, bei denen der Abstand der Innenfläche des Rahmens bzw. eines Anschlages vom Rand des Deckenschalelementes anders ist als bei den vorhergehend auf den Träger aufgelegten Schalelementen.In embodiments of the invention, the plastic strip can even be exchangeably attached to the carrier. This is not only advantageous when the plastic strip is renewed, but the supports can also be converted if other ceiling formwork elements are to be placed on them, in which the distance between the inner surface of the frame or a stop from the edge of the ceiling formwork element is different than in the case of previously placed formwork elements on the carrier.

Die Befestigung einer vorgefertigten Leiste auf dem Träger kann auf verschiedene Weise erfolgen, die Leiste kann beispielsweise auf den Träger aufgenietet oder aufgeklebt werden. Bei einer Ausführungsform der Erfindung weist jedoch der Träger an seinen Seitenwänden mindestens eine Hinterschneidung auf, in die die Leiste zu ihrer Befestigung, z. B. rastend, eingreift.A prefabricated strip can be attached to the carrier in various ways, for example the strip can be riveted or glued to the carrier. In one embodiment of the invention, however, the carrier has at least one undercut on its side walls, in which the bar for fastening, z. B. latching, engages.

Bei Ausführungsformen der Erfindung ist die Leiste in Längsrichtung des Trägers auf diesen aufschiebbar.In embodiments of the invention, the bar can be pushed onto the carrier in the longitudinal direction.

Zwar haftet Beton im allgemeinen nicht auf einer Schicht aus einem wasserabstoßenden Kunststoff, zumindest sind Zusammensetzungen eines Kunststoffes bekannt, an denen Zementmilch nicht oder nur schlecht haftet. Um das Reinigen der Kunststoffschicht noch mehr zu vereinfachen, sind bei einer Ausführungsform der Erfindung zwischen der Kunststoffschicht und der Trägerfläche zumindest einzelne Zwischenräume z. B. in der Größe eines Spiels oder einer größeren Fertigungstoleranz vorhanden, die eine geringe Bewegung eines Abschnittes rechtwinklig zu der Metallfläche erlauben. In diesem Falle genügt ein leichtes Klopfen auf den Kunststoffabschnitt, sodaß Betonreste abspringen.Although concrete generally does not adhere to a layer of water-repellent plastic, at least compositions of a plastic are known to which cement milk does not adhere or only adhere poorly. To clean the plastic layer To simplify even more, in one embodiment of the invention between the plastic layer and the support surface at least individual gaps z. B. in the size of a game or a larger manufacturing tolerance that allow a small movement of a section perpendicular to the metal surface. In this case, a light tap on the plastic section is sufficient so that the remains of concrete pop off.

Besteht der Träger aus Holz, so kann die Kunststoffleiste auf dem Träger durch Aufnageln befestigt werden.If the carrier is made of wood, the plastic strip can be attached to the carrier by nailing.

Weitere Merkmale der Erfindung ergeben sich aus der folgenden Beschreibung von Ausführungsformen der Erfindung in Verbindung mit den Ansprüchen und der Zeichnung. Die einzelnen Merkmale können je für sich oder zu mehreren bei Ausführungsformen der Erfindung verwirklicht sein.Further features of the invention result from the following description of embodiments of the invention in conjunction with the claims and the drawing. The individual features can be implemented individually or in groups in embodiments of the invention.

In der Zeichnung sind die zum Verständnis der Erfindung wesentlichen Teile von Ausführungsformen der Erfindung dargestellt.The drawing shows the parts of embodiments of the invention that are essential for understanding the invention.

Es zeigen:

Fig. 1
eine erste Ausführungsform des erfindungsgemäßen Trägers in Seitenansicht;
Fig. 2
einen Schnitt entlang Linie II-II in Fig. 1;
Fig. 3
eine Deckenschalung in Ansicht und teilweise im Schnitt;
Fig. 4
einen Schnitt entlang Linie IV-IV in Fig. 3;
Fig. 5
einen der Fig. 2 entsprechenden Schnitt durch eine andere Ausführungsform eines erfindungsgemäßen Trägers;
Fig. 6
eine Leiste für den Träger nach Fig. 5 im Schnitt.
Show it:
Fig. 1
a first embodiment of the carrier according to the invention in side view;
Fig. 2
a section along line II-II in Fig. 1;
Fig. 3
a slab formwork in view and partially in section;
Fig. 4
a section along line IV-IV in Fig. 3;
Fig. 5
a section corresponding to Figure 2 through another embodiment of a carrier according to the invention.
Fig. 6
a bar for the carrier of FIG. 5 in section.

Der in Fig. 1, 2 und 3 gezeigte Träger 1 ist im Strangpreßverfahren aus einer Aluminiumlegierung hergestellt. Sein Querschnitt ist als rechteckförmiges Hohlprofil ausgebildet. An den beiden Längskanten der Oberseite 2 des Trägers 1 ist je eine sich über die gesamte Länge des Trägers 1 erstrekkende Reihe schräg nach oben außen weisender Vorsprünge 3, 4 angeformt. Sie bilden zusammen mit der Oberseite 2 des Trägers 1 eine Nut 5 auf der gesamten Länge des Trägers 1. Die Nut 5 dient als Aufnahme für Schalelemente 11, 29. Sie hat am Grund die doppelte Breite eines parallel zur Trägerlängsachse verlaufenden Rahmenschenkels 14, 15 eines einzulegenden Schalelements 11, 29 an der der Schalhaut abgewandten Seite des Schalelementes. Die Vorsprünge 3 bzw. 4 begrenzen Aussparungen 6, die sich nach unten hin verjüngen. Ihre lichte Weite am Grund entspricht der doppelten Breite eines quer zur Trägerlängsachse verlaufenden Rahmenschenkels 16, 17 (Fig. 3) eines in die Nut 5 einzulegenden Schalelements 11, 30 an der der Schalhaut abgewandten Seite. Die Aussparungen 6 sind so angeordnet, daß sich ein Rastermaß ergibt, wenn aus Trägern 1 und geeigneten Stützen eine Stützkonstruktion für Schalelemente zur Schalung einer Decke aufgebaut wird. Der Abstand der Aussparungen 6 voneinander entspricht einem Bruchteil des entsprechenden Maßes eines Schalelementes 30. Bei der in Fig. 3 dargestellten Ausführungsform z. B. ein Siebtel der Breite eines Schalenelementes 30. An seinen beiden Enden ist der Träger 1 mit jeweils einer Einhängevorrichtung versehen, die in Fig. 3 der besseren Übersicht halber als einfacher Einhängebolzen 7 dargestellt ist, der quer durch die beiden Seitenwähne 8, 9 des Trägers 1 verläuft und beiderseits übersteht.The carrier 1 shown in FIGS. 1, 2 and 3 is made of an aluminum alloy in the extrusion process. Its cross section is designed as a rectangular hollow profile. On the two longitudinal edges of the top 2 of the carrier 1, a row extending over the entire length of the carrier 1 is formed obliquely upwards outwardly projecting projections 3, 4. Together with the upper side 2 of the carrier 1, they form a groove 5 over the entire length of the carrier 1. The groove 5 serves as a receptacle for formwork elements 11, 29. At the bottom, it has twice the width of a frame leg 14, 15 of one running parallel to the longitudinal axis of the carrier formwork element 11, 29 to be inserted on the side of the formwork element facing away from the formwork skin. The projections 3 and 4 delimit cutouts 6, which taper towards the bottom. Their clear width at the bottom corresponds to twice the width of a frame leg 16, 17 (FIG. 3) running transversely to the longitudinal axis of the beam of a formwork element 11, 30 to be inserted into the groove 5 on the side facing away from the formwork skin. The recesses 6 are arranged so that there is a grid dimension when a support structure for formwork elements for formwork of a ceiling is constructed from beams 1 and suitable supports. The spacing of the cutouts 6 from one another corresponds to a fraction of the corresponding dimension of a formwork element 30. In the embodiment shown in FIG. B. a seventh the width of a shell element 30. At its two ends, the carrier 1 with each provided a suspension device, which is shown in Fig. 3 for the sake of clarity as a simple suspension bolt 7, which runs across the two side panels 8, 9 of the carrier 1 and protrudes on both sides.

Fig. 4 zeigt den Träger 1 mit in die Nut 5 auf seiner Oberseite 2 eingelegten Schalelementen 11 und 29. Die Schalelemente 11 und 29 weisen einen Rahmen 12 auf, an dem eine Schalhaut 13 befestigt ist. Der Rahmen 12 besteht beispielsweise aus verschweißten Aluminiumprofilen. In Längsrichtung der Nut 5 sind jeweils ein Schenkel 14, 15 des Rahmens 12 zweier aneinander anliegender Schalelemente 11, 29 nebeneinander aufgenommen (vgl. Fig. 4). Die Nut 5 verjüngt sich nach unten. Je nach Breite des Nutgrunds der Nut 5 einerseits und der Breite der beiden Schenkel 14, 15 der Schalelemente 11, 29 liegen die Schalelemente 11, 29 unter etwas Spannung aneinander.4 shows the carrier 1 with the formwork elements 11 and 29 inserted into the groove 5 on its top 2. The formwork elements 11 and 29 have a frame 12 to which a formwork skin 13 is fastened. The frame 12 consists, for example, of welded aluminum profiles. In the longitudinal direction of the groove 5, one leg 14, 15 of the frame 12 of two adjoining formwork elements 11, 29 are received next to each other (see FIG. 4). The groove 5 tapers downwards. Depending on the width of the groove base of the groove 5 on the one hand and the width of the two legs 14, 15 of the formwork elements 11, 29, the formwork elements 11, 29 lie against one another with some tension.

Die Aussparungen 6 in den Vorsprüngen 3, 4 der Nut 5 werden in Querrichtung zum Träger 1 von Schenkeln 16, 17 der Rahmen 12 je zweier Schalelemente 11, 30 durchsetzt (vgl. Fig. 3). Da sich die Aussparungen 6 ebenfalls nach unten verjüngen, liegen auch die Rahmenschenkel 16, 17 aneinander an. Durch die Wahl der lichten Weite der Aussparungen 6 an der Oberseite 2 des Trägers 1 können auch die Rahmenschenkel 16, 17 der Schalelemente 30 und 11 unter Spannung aneinander anliegen (Fig. 3).The cutouts 6 in the projections 3, 4 of the groove 5 are penetrated in the transverse direction to the carrier 1 by legs 16, 17 of the frame 12 each of two formwork elements 11, 30 (cf. FIG. 3). Since the cutouts 6 also taper downwards, the frame legs 16, 17 also abut one another. By choosing the clear width of the recesses 6 on the upper side 2 of the carrier 1, the frame legs 16, 17 of the formwork elements 30 and 11 can also abut one another under tension (FIG. 3).

Insgesamt liegen sämtliche Schalelemente einer Deckenschalung sowohl in Längs- als auch in Querrichtung dicht und bündig aneinander; es ergibt sich eine durchgehende und glatte Schalfläche, wie in Fig. 3 und 4 dargestellt.Overall, all formwork elements of a slab formwork lie close and flush to one another in both the longitudinal and transverse directions; there is a continuous and smooth formwork surface, as shown in FIGS. 3 and 4.

In Fig. 3 sind die Träger 1 in Einhängeteile 18, 19 einer Stütze 20 eingehängt. Die Einhängeteile 18, 19 sind hakenförmig; sie greifen ins Innere des Hohlprofils der Träger 1 ein und nehmen jeweils einen Einhängebolzen 7 auf. Die Einhängeteile 18, 19 können auch so ausgebildet sein, daß sie einen Einhängebolzen 7 außen am Träger 1 an dessen seitlich überstehenden Enden aufnehmen.In Fig. 3, the carrier 1 are suspended in suspension parts 18, 19 of a support 20. The hanging parts 18, 19 are hook-shaped; they engage in the interior of the hollow profile of the carrier 1 and each take up a suspension bolt 7. The suspension parts 18, 19 can also be designed such that they receive a suspension bolt 7 on the outside of the carrier 1 at its laterally projecting ends.

Zum Aufstellen einer Deckenschalung mit den erfindungsgemäßen Trägern 1 werden zunächst die Träger 1 mit ihren Enden so in die Stützen 20 eingehängt, daß mehrere Reihen aus Trägern 1 und Stützen 20 nebeneinander im Abstand der Länge der aufzulegenden Schalelemente entstehen. Auf diese stehende Stützkonstruktion werden die Schalelemente 11,. 29, 30 aufgelegt.To erect a slab formwork with the beams 1 according to the invention, the ends of the beams 1 are first suspended in the supports 20 such that several rows of beams 1 and supports 20 are formed next to one another at a distance of the length of the formwork elements to be placed. The formwork elements 11,. 29, 30 hung up.

Bei der dargestellten Ausführungsform der Erfindung entspricht die Länge der Aussparung 6 der doppelten Dicke des in sie eingreifenden Teiles 16, 17 des Rahmens 12 der auf den Träger 1 aufzulegenden Schalelemente 30, 33. Wenn jedoch der Rand des Schalelementes über den Rahmenschenkel 16 bzw. 17 hinaussteht, so muß die Aussparung 6 die doppelte Länge des Maßes von der Innenfläche des Rahmenschenkels 16 bis zum Rand des Schalelementes aufweisen.In the embodiment of the invention shown, the length of the recess 6 corresponds to twice the thickness of the part 16, 17 of the frame 12 engaging in it, of the formwork elements 30, 33 to be placed on the carrier 1. However, if the edge of the formwork element is above the frame leg 16 or 17th stands out, the recess 6 must have twice the length of the dimension from the inner surface of the frame leg 16 to the edge of the formwork element.

Fig. 5 zeigt einen Querschnitt durch eine andere Ausführungsform eines Trägers. Er weist einen durch eine Wand 40 unterteilten, geschlossenen Rechteckquerschnitt auf. Der untere Rand des Querschnittes und die Enden des Trägers weisen eine spezielle Formgebung auf, die die Verwendung des Trägers in Verbindung mit verschiedenen Stützenköpfen erlauben. An seinem oberen Rand weist der Träger eine glatte Fläche 41 auf, in deren Längsmittelebene eine sich über die ganze Trägerlänge erstreckende Längsnut 42 vorgesehen ist, deren Flanken an ihrem oberen Ende einen geringeren Abstand voneinander aufweisen, als der größte Durchmesser der Nut beträgt. Die obere Wand 43 des Trägers 44 steht über die Seitenwände 45 des Trägers hinaus und weist dort etwa schwalbenschwanzförmige Ausschnitte 46 auf. An diese schließt sich jeweils ein nach unten ragender Fortsatz 47 an, der als Tropfnase ausgebildet sein kann.Fig. 5 shows a cross section through another embodiment of a carrier. It has a closed rectangular cross section divided by a wall 40. The lower edge of the cross-section and the ends of the carrier have a special shape, which allow the use of the carrier in connection with different support heads. At its upper edge, the carrier has a smooth surface 41, in the longitudinal center plane of which extends over the entire length of the carrier extending longitudinal groove 42 is provided, the flanks of which are at their upper end a smaller distance apart than the largest diameter of the groove. The upper wall 43 of the carrier 44 protrudes beyond the side walls 45 of the carrier and has approximately dovetail-shaped cutouts 46 there. This is followed by a downwardly projecting extension 47, which can be designed as a drip nose.

Auf die obere Fläche 41 des Trägers 44 wird eine in Fig. 6 dargestellte Kunststoffleiste 50 aufgeschoben, so daß deren zentraler, unter dem ebenen Abschnitt 48 nach unten ragender Vorsprung 49 in die Nut 42 eingreift und dort den Abschnitt 48 auf der Fläche 41 festhält. Die Leiste 50 weist an ihren Längsseiten nach unten sich erstreckende Schenkel 51 auf, die bei auf den Träger 44 aufgeschobener Leiste an den Fortsätzen 47 zur Anlage kommen und diese bedecken. Nach innen ragende Vorsprünge 52 greifen nach dem Aufschieben der Leiste 50 in die schwalbenschwanzförmigen Ausschnitte 46 ein und halten dort die Schenkel 51 in dichter Anlage an die Fortsätze 47. An den beiden Rändern des ebenen Leistenabschnittes 48 weist die Leiste 50 je eine Reihe von Vorsprüngen 53 und 54 auf, deren Form und deren Abstand voneinander den Vorsprüngen 3 und 4 gemäß der Ausführungsform nach Fig. 1 und 2 entsprechen.A plastic strip 50, shown in FIG. 6, is pushed onto the upper surface 41 of the carrier 44, so that its central projection 49, which projects below the flat section 48, engages in the groove 42 and holds the section 48 there on the surface 41. The strip 50 has on its long sides downwardly extending limbs 51 which come to rest on the extensions 47 and cover them when the strip 44 is pushed onto the carrier 44. Inwardly projecting projections 52 engage the dovetail cutouts 46 after pushing on the strip 50 and hold the legs 51 there in close contact with the extensions 47. The strip 50 has a row of projections 53 on each of the two edges of the flat strip section 48 and 54, the shape and spacing of which correspond to the projections 3 and 4 according to the embodiment according to FIGS. 1 and 2.

Die Ausführungsform nach Fig. 5 und 6 unterscheidet sich daher von den Ausführungsformen nach den Fig. 1 bis 4 dadurch, daß die Vorsprünge 3 nicht an den Träger 44 aus einer Aluminiumlegierung, sondern an eine Leiste 50 aus einem zähelastischen Kunststoff angeformt sind, die oben auf dem Träger 44 befestigt wird. Beim Aufschieben der Leiste 50 auf den Träger 44 liegt der Leistenabschnitt 48 mehr oder weniger dicht auf der oberen Fläche 41 des Trägers an. Die geringen, nach dem Aufschieben bestehenden Zwischenräume zwischen dem Leistenabschnitt 48 und der Trägerfläche 41 ermöglichen, daß der Abschnitt 48 sich gegen die Trägerfläche 41 in geringem Maße bewegen kann, das genügt, um auf dem Abschnitt 48 leicht haftende Betonteile abspringen zu lassen. Die Schenkel 51 reichen seitlich über den Träger 44 hinaus und schirmen dadurch die Seitenfläche des Trägers von Betonteilen und zementmilch ab. Dabei bilden die nach unten ragenden Vorsprünge 47 und die Schenkel 51 an ihrem Ende eine Tropfnase, an der Zementmilch abtropft und diese von den Seitenflächen des Trägers 44 abhält. Der Abstand der Reihen der Vorsprünge 53 und 54 entspricht dem Abstand der Reihen der Vorsprünge 3 und 4 bei der Ausführungsform nach Fig. 2 und 4, die Anwendung der Träger 44 entspricht der Anwendung der Träger 1.The embodiment according to FIGS. 5 and 6 therefore differs from the embodiments according to FIGS. 1 to 4 in that the projections 3 are not molded onto the carrier 44 made of an aluminum alloy, but rather onto a strip 50 made of a tough elastic plastic, which is at the top is attached to the carrier 44. When the strip 50 is pushed onto the carrier 44, the strip section 48 lies more or less close to the top surface 41 of the carrier. The small, post-clearance gaps between the strip section 48 and the support surface 41 allow the section 48 to move against the support surface 41 to a small extent, which is sufficient to allow concrete parts to stick off the section 48. The legs 51 extend laterally beyond the carrier 44 and thereby shield the side surface of the carrier from concrete parts and cement milk. The downwardly projecting projections 47 and the legs 51 form a drip nose at their end, from which cement milk drips and keeps them from the side surfaces of the carrier 44. The distance between the rows of projections 53 and 54 corresponds to the distance between the rows of projections 3 and 4 in the embodiment according to FIGS. 2 and 4, the application of the carriers 44 corresponds to the application of the carriers 1.

Besteht ein Träger aus Holz, so kann eine Kunststoffleiste, die gegebenenfalls ebenfalls nach unten reichende Schenkel aufweist, um die Seitenflächen des Trägers zu schützen, auf den Holzträger aufgenagelt werden.If a carrier is made of wood, a plastic strip, which may also have legs that extend downward to protect the side surfaces of the carrier, can be nailed onto the wooden carrier.

Die Kunststoffleiste 50 schützt alle Flächen des Trägers, die mit Beton- oder Zementmilch-Spritzern in Berührung kommen könnten, sodaß vor der Wiederverwendung des Trägers lediglich die Oberfläche des zähelastischen Kunststoffes gereinigt werden muß, was sehr viel leichter zu bewerkstelligen ist als das Reinigen einer Metallfläche. Dabei besteht keine Gefahr, daß die Oberfläche des zähelastischen Kunststoffes beschädigt wird.The plastic strip 50 protects all surfaces of the carrier that could come into contact with concrete or cement milk splashes, so that before the carrier is reused, only the surface of the viscoplastic plastic has to be cleaned, which is much easier to do than cleaning a metal surface . There is no danger that the surface of the tough elastic plastic will be damaged.

Die Vorsprünge verhindern ein Verrutschen der Schalelemente auf den Trägern, sodaß die Schalelemente zusammengezogen und dichtgezogen bleiben. Sind die Vorsprünge aus Kunststoff, so können sie elastisch ausgebildet sein. Die durch diese Elastizität verursachte Federwirkung trägt dazu bei, die Elemente dichtzuziehen.The projections prevent the formwork elements from slipping on the supports, so that the formwork elements remain contracted and tightly drawn. If the protrusions are made of plastic, so they can be elastic. The spring effect caused by this elasticity helps to pull the elements tight.

Ausführungsformen des Trägers weisen eine Länge von 2190 mm, eine Höhe bis zur Oberseite 2 von 164 mm und eine Breite des Rechteckhohlprofils von 60 mm auf. Das Achsmaß der Stützkonstruktion, d. h. von Mitte einer Stütze 20 bis zur Mitte der nächsten Stütze 20, beträgt 2250 mm. Eine andere Ausführungsform des Trägers hat eine Länge von 1440 mm, das Achsmaß beträgt dann 1500 mm. Das Maß von der Mitte einer Aussparung 6 bis zur Mitte der nächsten Aussparung 6 beträgt beispielsweise 125 mm.Embodiments of the carrier have a length of 2190 mm, a height up to the top 2 of 164 mm and a width of the rectangular hollow profile of 60 mm. The axis dimension of the support structure, i.e. H. from the center of one column 20 to the center of the next column 20 is 2250 mm. Another embodiment of the carrier has a length of 1440 mm, the axial dimension is then 1500 mm. The dimension from the center of a recess 6 to the center of the next recess 6 is, for example, 125 mm.

Bei anderen Ausführungsformen der Erfindung können mehr oder weniger (Metall- oder Holz-) Flächen des Trägers mit einer Schicht aus Kunststoff ummantelt sein, der eine hydrophobe Oberfläche aufweist.In other embodiments of the invention, more or fewer (metal or wooden) surfaces of the carrier can be encased with a layer of plastic which has a hydrophobic surface.

Beispielsweise können bei den bekannten Trägern, bei denen die Vorsprünge nicht oben sondern seitlich am Träger angebracht sind, diese Vorsprünge und gegebenenfalls die an diese Vorsprünge angrenzenden Flächen des Trägers mit Kunststoff ummantelt sein, was wiederum durch eine auf dem Träger befestigbare Kunststoffleiste verwirklicht sein kann. Auch hierbei können die Vorsprünge nicht nur mit Kunststoff ummantelt, sondern ganz aus Kunststoff bestehen.For example, in the known carriers, in which the projections are not attached to the top but laterally on the carrier, these projections and, if appropriate, the surfaces of the carrier adjoining these projections can be encased with plastic, which in turn can be realized by a plastic strip which can be fastened to the carrier. Here, too, the projections can not only be sheathed with plastic, but also consist entirely of plastic.

Claims (17)

  1. Ceiling molding for concrete having ceiling mold elements and their supports, wherein the supports (2) comprise projections (3, 4, 53, 54) protruding generally upwardly and outwardly and arranged at separations from another in separated rows, characterized in that both rows of projections (3, 4, 53, 54) are provided for on the two edges of the upper surface (2, 48) of a support and the gaps (6) between two projections (3, 4, 53, 54) correspond to twice the separation of an abutment (12), arranged on the underside of the mold element (11, 30), from the edge of the mold element, and the separation of the projections (3, 4, 53, 54) from each other corresponds to a side-length of the mold element (11, 29, 30) being placed or to a fraction of this side-length.
  2. Molding according to claim 1, characterized in that the separation between the two rows of projections (3, 4, 53, 54) on the support corresponds to twice the distance of an abutment provided on the underside of the mold element from the edge of the mold element (11, 29, 30).
  3. Molding according to claim 1 or 2, characterized in that the inner surface of a mold element (11, 29, 30) frame piece (14, 15; 16, 17) functions as an abutment.
  4. Molding according to one of the previous claims, characterized in that the projections (3, 4, 53, 54) are upwardly tapered.
  5. Ceiling molding for concrete having ceiling mold elements and their supports, wherein the supports (2) comprise projections protruding generally upwardly and outwardly and arranged at separations from another in separated rows, according to one of the previous claims, characterized in that a tough elastic plastic layer is provided for on at least the upper surface of a support.
  6. Molding according to claim 5, characterized in that the plastic layer exhibits projections (53, 54).
  7. Molding according to claim 5 or 6, characterized in that a prefabricated cover strip (50) made from a tough elastic plastic is attached to at least the upper surface of a support.
  8. Support according to claim 7, characterized in that the plastic cover strip (50) is attached to the support (44) in a replaceable fashion.
  9. Molding according to one of the claims 7 or 8, characterized in that the support (44) exhibits at least one relief (46) on its side walls (45) into which the cover strip (50) engages.
  10. Molding according to one of the claims 7 through 9, characterized in that the cover strip (50) can be slid onto the support (44) in a lengthwise direction.
  11. Molding according to one of the claims 5 through 10, characterized in that, between the plastic layer and the support surface located beneath this layer, separate intermediate spaces are provided at least sectionwise, which facilitate a small motion of the plastic section (48, 51) in a direction at right angles to the support surface.
  12. Molding according to one of the claims 5 through 11, characterized in that the support is made from wood and the plastic cover strip is nailed thereto.
  13. Molding according to one of the previous claims, characterized in that drip extensions (57) are formed along the upper edges of the support cross section.
  14. Molding according to one of the claims 5 through 13, characterized in that the plastic cover strip (50) also covers a part of the side surface of the support in the region of its upper edge.
  15. Molding according to claim 14, characterized in that the plastic cover strip exhibits legs (51) on the drip extension which partially cover the side walls of the support.
  16. Molding according to claim 14, characterized in that downwardly projecting legs (51) of the plastic cover strip (50) drip extensions (projections (47)) cover the support (44).
  17. Molding according to one of the claims 5 to 16, characterized in that the support surfaces and/or the projections are jacketed in plastic.
EP93922495A 1992-11-06 1993-10-13 Ceiling boarding support Expired - Lifetime EP0670944B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96104314A EP0718453B1 (en) 1992-11-06 1993-10-13 Floor-shuttering

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4237516A DE4237516A1 (en) 1992-11-06 1992-11-06 Slab formwork beams
DE4237516 1992-11-06
PCT/DE1993/000982 WO1994011594A1 (en) 1992-11-06 1993-10-13 Ceiling boarding support

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP96104314A Division EP0718453B1 (en) 1992-11-06 1993-10-13 Floor-shuttering
EP96104314.8 Division-Into 1993-10-13

Publications (2)

Publication Number Publication Date
EP0670944A1 EP0670944A1 (en) 1995-09-13
EP0670944B1 true EP0670944B1 (en) 1996-12-27

Family

ID=6472277

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93922495A Expired - Lifetime EP0670944B1 (en) 1992-11-06 1993-10-13 Ceiling boarding support
EP96104314A Expired - Lifetime EP0718453B1 (en) 1992-11-06 1993-10-13 Floor-shuttering

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP96104314A Expired - Lifetime EP0718453B1 (en) 1992-11-06 1993-10-13 Floor-shuttering

Country Status (6)

Country Link
US (1) US5683609A (en)
EP (2) EP0670944B1 (en)
JP (1) JP3242661B2 (en)
DE (3) DE4237516A1 (en)
ES (2) ES2156964T3 (en)
WO (1) WO1994011594A1 (en)

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DE4305302A1 (en) * 1993-02-20 1994-08-25 Peri Gmbh Slab formwork
US5643487A (en) * 1995-05-08 1997-07-01 Malone; William J. Beam and prop system for supporting concrete formwork
DE19616876C2 (en) * 1996-04-26 1999-10-28 Reent Obernolte Gmbh & Co Kg Frame formwork for concrete ceilings
DE19636091A1 (en) * 1996-09-05 1998-03-12 Hollmann Niels Frame especially for a platform or a scaffold or for decking formwork used in construction
FR2760482B1 (en) * 1997-03-07 1999-06-04 Bruno Ricard FORMWORK FOR THE EXECUTION OF CONCRETE SLABS OR FLOORS USING A MODULAR BEARING SYSTEM
GB2370603B (en) * 2000-10-07 2004-06-16 Odell Consultants Ltd Improvement in concrete shuttering platforms and support beams
DE60138227D1 (en) * 2001-04-03 2009-05-14 Ulma C Y E S Coop SHIFTING SYSTEM FOR PLATES
ES2187290B1 (en) * 2001-10-22 2004-06-16 Ingenieria De Encofrados Y Servicios, S.L. BEAM FOR SUPPORT OF BOARDING BOARDS.
US6893191B2 (en) * 2002-07-19 2005-05-17 Creative Pultrusions, Inc. Wale and retaining wall system
US20050217200A1 (en) * 2004-04-01 2005-10-06 Esche Glen R Modular form for cast-in-place concrete decks federally sponsored research
EP1617013A1 (en) 2004-07-13 2006-01-18 CEDEMAT - Aluguer de Materiais de Construçao, Lda Horizontal formwork
US20060042179A1 (en) * 2004-08-05 2006-03-02 Peter Vanagan Slab formwork systems
DE102004051614A1 (en) * 2004-10-22 2006-04-27 Peri Gmbh industry structure
ES2269006B1 (en) * 2006-07-28 2007-10-16 Ingenieria De Encofrados Y Servicios, S.L. "FORMWORK FOR FLOORS".
DE102007036368A1 (en) * 2007-07-31 2009-02-05 Paschal-Werk G. Maier Gmbh Slab formwork with support means for formwork panels
CA2668598C (en) * 2009-06-11 2012-05-15 Aluma Systems Inc. Concrete forming panel
DE102012203729A1 (en) * 2012-03-09 2013-09-12 Peri Gmbh Ceiling board panel for constructing concrete ceiling, has profiled sheet metal base with lining shell arranged so that molded holding profile sections and cover plates are protectively held at base edge sections in overlapped state
US11225802B2 (en) 2017-10-12 2022-01-18 George CHARITOU Prop head assembly
CA3006922A1 (en) * 2018-06-01 2019-12-01 At-Pac China Business Trust Scaffold ledger
DE102022114961A1 (en) 2022-06-14 2023-12-14 Peri Se Connection device, ceiling formwork system with connection device and method for producing ceiling formwork

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US1907877A (en) * 1929-04-01 1933-05-09 Henry W Roos Apparatus for laying concrete floors
US2401587A (en) * 1943-03-29 1946-06-04 Stout Houses Inc Floor structure
GB1067393A (en) * 1962-12-19 1967-05-03 Acrow Eng Ltd Improvements in and relating to formwork
US3385557A (en) * 1965-09-15 1968-05-28 Robert D. Rambelle Multi-purpose building member
GB1233058A (en) * 1968-06-20 1971-05-26
US4280677A (en) * 1979-05-03 1981-07-28 Moshe Shahar Shuttering
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US4848049A (en) * 1988-09-01 1989-07-18 Mold Systems Corporation Joist protector

Also Published As

Publication number Publication date
EP0718453A2 (en) 1996-06-26
DE4237516A1 (en) 1994-05-11
DE59310149D1 (en) 2001-04-05
DE59304923D1 (en) 1997-02-06
EP0670944A1 (en) 1995-09-13
EP0718453A3 (en) 1996-10-16
EP0718453B1 (en) 2001-02-28
ES2098062T3 (en) 1997-04-16
JP3242661B2 (en) 2001-12-25
WO1994011594A1 (en) 1994-05-26
JPH08503036A (en) 1996-04-02
ES2156964T3 (en) 2001-08-01
US5683609A (en) 1997-11-04

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