EP0789116A1 - Shuttering element - Google Patents
Shuttering element Download PDFInfo
- Publication number
- EP0789116A1 EP0789116A1 EP96120679A EP96120679A EP0789116A1 EP 0789116 A1 EP0789116 A1 EP 0789116A1 EP 96120679 A EP96120679 A EP 96120679A EP 96120679 A EP96120679 A EP 96120679A EP 0789116 A1 EP0789116 A1 EP 0789116A1
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- EP
- European Patent Office
- Prior art keywords
- formwork element
- rods
- holding
- element according
- formwork
- 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.)
- Granted
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/185—Bulkheads or similar walls made solely of concrete in situ with flexible joint members between sections
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
- E02D27/02—Flat foundations without substantial excavation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/065—Light-weight girders, e.g. with precast parts
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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
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
Definitions
- the invention relates to formwork element for lost formwork in concrete construction.
- Such a formwork element is known from DE-PS 41 11 062.
- the known formwork element consists of an expanded metal sheet which is welded between the transverse and longitudinal bars of a metal grid.
- the known formwork element can be used in this form as a lost formwork panel.
- the formwork element can also be firmly connected to a self-supporting rod frame to form a spatially shaped, prefabricated formwork element, such as a channel formwork of the type of DE-GM 90 05 482 or a backsplash according to DE-GM 92 06 140.
- the known formwork element can be used very well for the intended use, but requires more work and is therefore relatively expensive.
- the invention has for its object to provide an inexpensive and easy to manufacture, fully functional formwork element and to show a method for its manufacture.
- the inventive design of the concrete-holding formwork surfaces of the formwork element by means of a multiplicity of essentially parallel covering bars creates a formwork element which is simple to manufacture and inexpensive. It has been found that the covering rods are in a position to provide a distance to one another that is matched to the concrete quality, to hold the concrete securely within the formwork, but on the other hand to allow a certain amount of swelling out, so that they also parallel with it Cover rods can be created a rough connection surface on which the second concrete section to be subsequently produced can claw well. However, this also embeds the cover bars in the concrete, which contributes to additional reinforcement and thus to increased strength.
- the preferred distance between the cover bars according to claim 2 is between 6 and 8 mm.
- the distance can also be reduced to zero or increased to 30 mm.
- the preferred thickness of the cover rods is 3 to 5 mm. However, if additional, particularly effective reinforcement is to be achieved, its diameter can increase to 12 mm.
- the covering bars according to claim 4 are made of metal, with reinforcing bars consisting of recycling material being preferred.
- the configuration according to claim 5 makes the manufacture of the formwork element according to the invention even easier.
- a plurality of parallel holding rods are expediently provided for holding the cover rods.
- the spacing of the support rods can be dimensioned based on structural conditions, in particular the diameter of the cover rods and the expected concrete pressure to which the cover rods are exposed. A distance between 10 and 25 cm, preferably 20 cm, will be sufficient for most applications.
- the support bars can also be used for additional reinforcement and for this purpose according to claim 8 a diameter up to 12 mm, i.e. the diameter of the usual reinforcing bars.
- the holding rods should preferably consist of metal, as described in claim 9.
- the formwork element according to the invention can also be designed as a formwork element with a self-supporting scaffold, the cover rods being carried directly by one of the scaffold rods, which further simplifies production.
- the cover rods form part of the supporting structure, so that the production is further simplified.
- Claim 13 describes a particularly preferred method for producing the formwork element according to the invention, for which the device already described in DE-PS 41 11 062 can expediently be used.
- the holding rods of the spot welding stations which have a constant spacing from one another, can be fed and the covering rods placed on the holding rods at the predetermined distance shortly before the spot welding station and immediately welded to the holding rods.
- the production of the formwork elements according to the invention is particularly simple and cost-effective if the holding rods according to Claim 14 from a continuous supply, for example a roll, fed and only cut into the desired size of the formwork element after connecting to the cover rods.
- Claim 15 describes a particularly preferred because simple and inexpensive method of producing formwork elements with a self-supporting framework and formwork walls, since a flat material can be produced in a substantially simple manner.
- Fig. 1 shows a first embodiment of a formwork element 1 according to the invention in the form of a flat formwork strip or a formwork panel shown only partially.
- the formwork element 1 has a plurality of closely adjacent and parallel to each other covering rods 2 with a round cross-section, which are connected to one another by a holding device in the form of holding rods 3 running at right angles to the covering rods 2 and are held at a predetermined distance a from one another.
- the holding rods 3 also have a round cross section.
- the distance a between the cover bars 2 is matched to the concrete quality to be shuttered with the formwork element 1 and can be 0 mm in the case of particularly low-viscosity concrete qualities and 12 mm in the case of particularly tough, viscous concrete qualities. However, for most of the usual concrete qualities, the distance a is between 6 and 8 mm.
- the cover rods 2 have a diameter d, which was chosen for the cover rods 2 or the concrete part according to the desired strength and bending stiffness and can be up to 12 mm.
- the diameter d is usually between 3 and 5 mm.
- the holding rods 3 have a diameter D, which can be up to 12 mm.
- the holding bars 3 are arranged at a distance A on the same side of the covering bars 2, which suitably corresponds to the distance between the reinforcing bars of a mesh mat and is between 10 and 25 cm, preferably 20 cm.
- the support rods 3 can, as shown in Fig. 1, protrude slightly beyond the outer cover rods, but can also be aligned with them.
- Both the cover rods 2 and the holding rods 3 consist of the usual structural steel and are spot-welded to one another at their crossing points. They can have a profiled outer surface, as is also common with reinforcing bars.
- the flat formwork element 1 can be used like any other surface formwork, i.e. it can be set up in the usual way or attached to a support frame.
- Fig. 2 shows a further embodiment of a formwork element 10 according to the invention, which is designed as a formwork element for producing a backsplash.
- the formwork element 10 has the cover rods 2 already described with reference to FIG. 1, the diameter and spacing of which are identical to those of FIG. 1.
- U-shaped brackets 13 serve as holding devices in the formwork element 10, the legs of which are designed as holding rods and are held in an upright position and at a predetermined distance from one another by the covering rods 2.
- Cover rods 2 and U-shaped brackets 13 are thus part of a framework 14 which determines the shape of the formwork element 10.
- the shape of the scaffold can be stabilized by anchor rods and spacers (not shown) that extend across the cross-section.
- the framework of the formwork element 10 includes a holder 15 into which one of the usual joint tapes, not shown, made of elastic material can be inserted.
- the bracket 15 consists of V-shaped brackets 16, wherein a V-shaped bracket 16 is arranged with its apex in the middle of the U-shaped bracket 13 between the cover rods 2.
- the holder 15 additionally has connecting rods 17 which, in particular, connect the free ends of the V-shaped brackets 16 to one another and keep them at a distance from one another, but can also be arranged between the vertices of the V-shaped brackets and their free ends. All rods of the frame 14 for the formwork element 10 have a round cross section and are made of structural steel.
- the device 20 contains a feed table 21 on which, in the exemplary embodiment shown, there are already rods 3, 13 cut to the desired length, which form the holding device. However, the holding rods can also be removed from a rail and fed continuously.
- the holding rods 3, 13 are at a predetermined distance D from one another perpendicular to the plane of the drawing in FIG. 3 and are arranged in parallel.
- the guide table 21 has a feed finger 22 for each of the holding rods 3, 13, which acts on the trailing end of each holding rod 3, 13 in such a way that the holding rods 3, 13 together controlled by feed in the direction of their longitudinal extent and in the direction of arrow A to a spot welding station 23.
- the most important features of the spot welding station 23 are two electrodes 24 and a preferably magnetic stop 25 for the cover bars 2 arranged above the arriving holding rods 3, 13, which are supplied by a feed device 26 arranged above the spot welding station 23.
- the feed device 26 has a drum 27 which can be rotated in the direction of the arrow B and in the circumference of which receiving grooves 28 are provided which can each accommodate only a single cover rod 2.
- the cover rods 2 lie on a ramp 29 and are guided by this to the drum 27.
- a cover rail 30 ensures that the cover rods 2 remain in their grooves 28 until they are directly above the spot welding station 23. At this point, the cover rail 30 is interrupted by a supply gap 31, through which the cover rods 2 can fall individually onto the holding rods 3, 13 in their predetermined position. After welding, the feed fingers 22 continue to move so that the subsequent cover rod 2 falls onto the holding rods 3, 13 and can be welded there.
- the feed speed A of the feed fingers 22 and the rotational speed B of the drum 27 are controlled and coordinated with one another in such a way that for the production of the formwork element 1, the covering rods 2 fall onto the holding rods 3 at intervals and with such a time interval that the predetermined spatial distance a is reached .
- the resulting flat material is removed and, if necessary, further processed by cutting and / or bending.
- covering rods 2 are welded over the entire length of the holding rods 3 and the resulting flat material is then optionally connected cut into the desired dimensions.
- a cutting device can be connected to the spot welding station, which cuts the flat material at predetermined locations depending on the control of the feed (number of cycles and time).
- the formwork element 10 is preferably produced in two steps, the holding bars 13 forming the U-shaped bracket being welded to the cover bars 2 in one step, an appropriate control system ensuring that the cover bars 2 are attached only to the legs of the U- Shaped bracket 13 are provided where they later form a formwork wall, and the web of the U-shaped bracket remains free.
- the holder 15 is produced in the same device 20, the bars forming the V-shaped bracket 17 being fed analogously to the holding bars 3, and the bars 17 forming the cross connection being fed analogously to the covering bars 2. Then the two parts of the frame are bent as shown in Fig. 2, U- or V-shaped and welded together.
- the formwork element according to the invention can also be produced in other forms, for example as gutter formwork without a joint tape holder.
- the joint tape holder can also be produced with the help of U-shaped brackets instead of the V-shaped bracket shown in FIG. 2.
- the rods do not have to be made of metal. Instead of bars with a round cross section, strip-shaped or strip-shaped bars can also be used. If the electrodes of the spot welding device can be moved perpendicular to the plane of the drawing in FIG. 3, it is also possible with a sophisticated control to produce the formwork element according to FIG. 2 first as a flat material and then to bend it up accordingly.
- the cover rods can be used instead of holding rods can also be held in their predetermined position by blocks or other holding devices.
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Abstract
Description
Die Erfindung bezieht sich auf Schalungselement für verlorene Schalungen im Betonbau.The invention relates to formwork element for lost formwork in concrete construction.
Ein derartiges Schalungselement ist aus der DE-PS 41 11 062 bekannt. Das bekannte Schalungselement besteht aus einer Streckmetalltafel, die zwischen die Quer- und die Längsstäbe eines Metallgitters eingeschweißt ist. Das bekannte Schalungselement kann in dieser Form als verlorene Schalungstafel eingesetzt werden. Das Schalungselement kann jedoch auch fest mit einem selbsttragenden Stabgerüst zu einem räumlich ausgeformten, vorgefertigten Schalungselement, wie beispielsweise einer Rinnenschalung der Art des DE-GM 90 05 482 oder einer Aufkantung nach der DE-GM 92 06 140, verbunden werden. Das bekannte Schalungselement ist zwar für den angestrebten Verwednungszweck sehr gut brauchbar, erfordert jedoch einen höheren Arbeitsaufwand und ist demzufolge relativ teuer.Such a formwork element is known from DE-PS 41 11 062. The known formwork element consists of an expanded metal sheet which is welded between the transverse and longitudinal bars of a metal grid. The known formwork element can be used in this form as a lost formwork panel. However, the formwork element can also be firmly connected to a self-supporting rod frame to form a spatially shaped, prefabricated formwork element, such as a channel formwork of the type of DE-GM 90 05 482 or a backsplash according to DE-GM 92 06 140. The known formwork element can be used very well for the intended use, but requires more work and is therefore relatively expensive.
Der Erfindung liegt die Aufgabe zugrunde, ein preisgünstig und einfach herzustellendes, voll funktionsfähiges Schalungselement zu schaffen und ein Verfahren zu seiner Herstellung aufzuzeigen.The invention has for its object to provide an inexpensive and easy to manufacture, fully functional formwork element and to show a method for its manufacture.
Die Aufgabe wird durch das Schalungselement nach Anspruch 1 gelöst.The object is achieved by the formwork element according to
Durch die erfindungsgemäße Ausbildung der betonhaltenden Schalungsflächen des Schalungselementes durch eine Vielzahl von im wesentlichen parallelen Abdeckstäben wird ein einfach herstellbares und kostengünstiges Schalungselement geschaffen. Es hat sich herausgestellt, daß die Abdeckstäbe durchaus in der Lage sind, einen auf die Betonqualität abgestimmten Abstand zueinander vorausgesetzt, den Beton sicher innerhalb der Schalung zu halten, andererseits jedoch ein gewisses Herausquellen zu gestatten, so daß auch mit diesen parallelen Abdeckstäben eine rauhe Anschlußfläche geschaffen werden kann, an der sich der anschließend herzustellende, zweite Betonabschnitt gut verkrallen kann. Dadurch werden jedoch auch die Abdeckstäbe in den Beton eingebettet, was zu einer zusätzlichen Bewehrung und somit zur Festigkeitssteigerung beiträgt.The inventive design of the concrete-holding formwork surfaces of the formwork element by means of a multiplicity of essentially parallel covering bars creates a formwork element which is simple to manufacture and inexpensive. It has been found that the covering rods are in a position to provide a distance to one another that is matched to the concrete quality, to hold the concrete securely within the formwork, but on the other hand to allow a certain amount of swelling out, so that they also parallel with it Cover rods can be created a rough connection surface on which the second concrete section to be subsequently produced can claw well. However, this also embeds the cover bars in the concrete, which contributes to additional reinforcement and thus to increased strength.
Für die meisten Betonqualitäten beträgt der bevorzugte Abstand zwischen den Abdeckstäben gemäß Anspruch 2 zwischen 6 und 8 mm. Für Sonderzwecke bzw. für besonders dünnflüssige oder besonders zähe Betonqualitäten kann der Abstand jedoch auch bis auf Null verringert bzw. bis auf 30 mm erhöht werden.For most concrete qualities, the preferred distance between the cover bars according to
Gemäß Anspruch 3 liegt die bevorzugte Dicke der Abdeckstäbe bei 3 bis 5 mm. Soll jedoch eine zusätzliche, besonders wirksame Bewehrung erreicht werden, so kann ihr Durchmesser bis auf 12 mm ansteigen.According to
Zweckmäßigerweise bestehen die Abdeckstäbe gemäß Anspruch 4 aus Metall, wobei aus Recyclingmaterial bestehende Bewehrungsstäbe bevorzugt sind.Expediently, the covering bars according to claim 4 are made of metal, with reinforcing bars consisting of recycling material being preferred.
Durch die Ausgestaltung nach Anspruch 5 wird die Herstellung des erfindungsgemäßen Schalungselementes noch weiter erleichtert.The configuration according to claim 5 makes the manufacture of the formwork element according to the invention even easier.
Zweckmäßigerweise sind gemäß Anspruch 6 eine Vielzahl paralleler Haltestäbe zum Halten der Abdeckstäbe vorgesehen. Gemäß Anspruch 7 kann der Abstand der Haltestäbe auf konstruktive Gegebenheiten, insbesondere den Durchmesser der Abdeckstäbe und dem zu erwartenden Betondruck, dem die Abdeckstäbe ausgesetzt sind, bemessen werden. Ein Abstand zwischen 10 und 25 cm, bevorzugt 20 cm, wird für die meisten Anwendungszwecke ausreichend sein.A plurality of parallel holding rods are expediently provided for holding the cover rods. According to claim 7, the spacing of the support rods can be dimensioned based on structural conditions, in particular the diameter of the cover rods and the expected concrete pressure to which the cover rods are exposed. A distance between 10 and 25 cm, preferably 20 cm, will be sufficient for most applications.
Auch die Haltestäbe können für eine zusätzliche Bewehrung eingesetzt werden und zu diesem Zweck gemäß Anspruch 8 einen Durchmesser bis zu 12 mm, d.h. dem Durchmesser der üblichen Bewehrungsstäbe, aufweisen.The support bars can also be used for additional reinforcement and for this purpose according to claim 8 a diameter up to 12 mm, i.e. the diameter of the usual reinforcing bars.
Auch die Haltestäbe sollten bevorzugt aus Metall bestehen, wie dies in Anspruch 9 beschrieben ist.The holding rods should preferably consist of metal, as described in claim 9.
Das erfindungsgemäße Schalungsselement kann auch gemäß Anspruch 10 als Schalungselement mit selbsttragendem Gerüst ausgebildet sein, wobei die Abdeckstäbe direkt von einem der Gerüststäbe getragen werden, was die Herstellung weiter vereinfacht.The formwork element according to the invention can also be designed as a formwork element with a self-supporting scaffold, the cover rods being carried directly by one of the scaffold rods, which further simplifies production.
In der Ausgestaltung gemäß Anspruch 11 bilden die Abdeckstäbe einen Teil des tragenden Gerüstes, so daß die Herstellung noch weiter vereinfacht wird.In the embodiment according to claim 11, the cover rods form part of the supporting structure, so that the production is further simplified.
Schließlich können weitere Teile des Schalungselementes, wie beispielsweise die in Anspruch 12 beschriebene Halterung für ein Fugenband oder eine Wassersperre aus Blech in das Gerüst integriert werden.Finally, other parts of the formwork element, such as the holder for a joint tape or a water barrier made of sheet metal described in claim 12, can be integrated into the scaffold.
Anspruch 13 beschreibt ein besonders bevorzugtes Verfahren zum Herstellen des erfindungsgemäßen Schalungselementes, für das zweckmäßigerweise die bereits in der DE-PS 41 11 062 beschriebene Vorrichtung verwendet werden kann. Durch die beschriebene Zuführrichtung der einzelnen Stäbe können die einen konstanten Abstand zueinander aufweisenden Haltestäbe der Punktschweißstationen zugeführt werden und die Abdeckstäbe in dem vorbestimmten Abstand auf die Haltestäbe kurz vor der Punktschweißstation aufgelegt und sofort mit den Haltestäben verschweißt werden.
Besonders einfach und kostengünstig wird die Herstellung der erfindungsgemäßen Schalungselemente, wenn die Haltestäbe gemäß Anspruch 14 aus einem kontinuierlichen Vorrat, beispielsweise einer Rolle, zugeführt und erst nach dem Verbinden mit den Abdeckstäben in die gewünschte Größe des Schalungselementes geschnitten werden.The production of the formwork elements according to the invention is particularly simple and cost-effective if the holding rods according to
Anspruch 15 beschreibt eine besonders bevorzugte, weil einfache und kostengünstige Methode, Schalungselemente mit einem selbsttragenden Gerüst und Schalungswandungen herzustellen, da ein Flachmaterial wesentlich einfache hergestellt werden kann.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine Draufsicht auf ein erstes Ausführungsbeispiel eines erfindungsgemäßen Schalungselementes,
- Fig. 2
- eine perspektivische Darstellung eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Schalungselementes, und
- Fig. 3
- eine schematische Darstellung der zur Durchführung des erfindungsgemäßen Verfahrens verwendete Vorrichtung.
- Fig. 1
- a plan view of a first embodiment of a formwork element according to the invention,
- Fig. 2
- a perspective view of a second embodiment of a formwork element according to the invention, and
- Fig. 3
- is a schematic representation of the device used to carry out the method according to the invention.
Fig. 1 zeigt ein erstes Ausführungsbeispiel eines erfindungsgemäßen Schalungselementes 1 in Form eines nur teilweise dargestellten, flächigen Schalungsstreifens bzw. einer Schalungstafel. Das Schalungselement 1 weist eine Vielzahl eng benachbarter und parallel zueinander ausgerichteter Abdeckstäbe 2 mit rundem Querschnitt auf, die durch eine Halteeinrichtung in Form von rechtwinklig zu den Abdeckstäben 2 verlaufenden Haltestäben 3 miteinander verbunden und in einem vorbestimmten Abstand a zueinander gehalten sind. Auch die Haltestäbe 3 haben einen runden Querschnitt.Fig. 1 shows a first embodiment of a
Der Abstand a zwischen den Abdeckstäben 2 wird auf die mit dem Schalungselement 1 abzuschalende Betonqualität abgestimmt und kann bei besonders dünnflüssigen Betonqualitäten bei 0 mm und bei besonders zähen, dickflüssigen Betonqualitäten bei 12 mm liegen. Für die meisten der üblichen Betonqualitäten liegt der Abstand a jedoch zwischen 6 und 8 mm. Die Abdeckstäbe 2 haben einen Durchmesser d, der nach der gewünschten Festigkeit und Biegesteifigkeit für die Abdeckstäbe 2 bzw. das Betonteil gewählt wurde und bis zu 12 mm betragen kann. Üblicherweise beträgt der Durchmesser d zwischen 3 und 5 mm.The distance a between the
Die Haltestäbe 3 weisen einen Durchmesser D auf, der bis zu 12 mm betragen kann. Die Haltestäbe 3 sind in einem Abstand A auf der gleichen Seite der Abdeckstäbe 2 angeordnet, der zweckmäßigerweise dem Abstand zwischen den Bewehrungsstäben einer Gittermatte entspricht und zwischen 10 und 25 cm, bevorzugt 20 cm beträgt. Die Haltstäbe 3 können, wie in Fig. 1 dargestellt, geringfügig über die äußeren Abdeckstäbe frei vorstehen, können jedoch auch mit ihnen fluchten.The
Sowohl die Abdeckstäbe 2 als auch die Haltestäbe 3 bestehen aus dem üblichen Baustahl und sind miteinander an ihren Kreuzungspunkten punktverschweißt. Sie können eine profilierte Außenfläche aufweisen, wie dies auch bei Bewehrungsstäben üblich ist.Both the
Das flächige Schalungselement 1 kann wie jede andere Flächenschalung eingesetzt werden, d.h. sie kann in üblicher Weise aufgestellt oder an einem Tragegerüst befestigt werden.The
Fig. 2 zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Schalungselementes 10, das als Formschalungselement zum Herstellen einer Aufkantung ausgebildet ist. Das Schalungselement 10 weist die bereits anhand der Fig. 1 beschriebenen Abdeckstäbe 2 auf, deren Durchmesser und Abstand zueinander mit denen der Fig. 1 identisch sind.Fig. 2 shows a further embodiment of a
Als Halteeinrichtung dienen beim Schalungselement 10 U-förmige Bügel 13, deren Schenkel als Haltestäbe ausgebildet sind und durch die Abdeckstäbe 2 in aufrechter Stellung und in ihrem vorbestimmten Abstand zueinander gehalten werden. Abdeckstäbe 2 und U-förmige Bügel 13 sind somit Teil eines Gerüstes 14, das die Form des Schalungselementes 10 bestimmt. Die Form des Gerüstes kann durch Ankerstäbe und Distanzhalter (nicht gezeichnet) stabilisiert werden, die sich quer über den Querschnitt erstrecken. Weiterhin zum Gerüst des Schalungselementes 10 gehört eine Halterung 15, in die eines der üblichen, nicht gezeichneten Fugenbänder aus elastischem Material eingelegt werden kann. Die Halterung 15 besteht aus V-förmigen Bügeln 16, wobei jeweils ein V-förmiger Bügel 16 mit seinem Scheitelpunkt in der Mitte des U-förmigen Bügels 13 zwischen den Abdeckstäben 2 angeordnet ist. Die Halterung 15 weist zusätzlich Verbindungsstäbe 17 auf, die insbesondere die freien Enden der V-förmigen Bügel 16 miteinander verbinden und im Abstand zueinander halten, jedoch auch zwischen den Scheitelpunkten der V-förmigen Bügel und ihren freien Enden angeordnet sein können. Alle Stäbe des Gerüstes 14 für das Schalungselement 10 weisen einen runden Querschnitt auf und bestehen aus Baustahl.U-shaped
In Fig. 3 ist schematisch eine Vorrichtung 20 zum Herstellen des Schalungselementes 1, 10 ersichtlich. Die Vorrichtung 20 enthält einen Vorschubtisch 21, auf dem im dargestellten Ausführungsbeispiel bereits auf die gewünschte Länge zugeschnittene Stäbe 3, 13 liegen, die die Halteeinrichtung bilden. Die Haltestäbe können jedoch auch von einer Ralle abgezogen und kontinuierlich zugeführt werden. Senkrecht zur Zeichnungsebene in Fig. 3 weisen die Haltestäbe 3, 13 ihren vorbestimmten Abstand D zueinander auf und sind parallel angeordnet. Der Führungstisch 21 weist für jeden der Haltestäbe 3, 13 einen Vorschubfinger 22 auf, der am nachlaufenden Ende jedes Haltestabes 3, 13 derart angreift, daß die Haltestäbe 3, 13 gemeinsam vorschubgesteuert in Richtung ihrer Längserstreckung und in Richtung des Pfeiles A auf eine Punktschweißstation 23 zubewegt werden.3 schematically shows a
Die Punktschweißstation 23 hat als wesentlichste Merkmale zwei Elektroden 24 und einen oberhalb der ankommenden Haltestäbe 3, 13 angeordneten, vorzugsweise magnetischen Anschlag 25 für die Abdeckstäbe 2, die von einer oberhalb der Punktschweißstation 23 angeordneten Zuführeinrichtung 26 zugeführt werden. Die Zuführeinrichtung 26 weist eine in Richtung des Pfeiles B drehbare Trommel 27 auf, in deren Umfang Aufnahmerillen 28 vorgesehen sind, die jeweils nur einen einzigen Abdeckstab 2 aufnehmen können. Die Abdeckstäbe 2 liegen auf einer Rampe 29 und werden von dieser zur Trommel 27 geleitet. Eine Abdeckschiene 30 sorgt dafür, daß die Abdeckstäbe 2 solange in ihren Rillen 28 bleiben, bis sie sich direkt über der Punktschweißstation 23 befinden. An dieser Stelle ist die Abdeckschiene 30 durch einen Zufuhrspalt 31 unterbrochen, durch den die Abdeckstäbe 2 jeweils einzeln in ihre vorbestimmte Position auf die Haltestäbe 3, 13 fallen können. Nach dem Festschweißen bewegen sich die Vorschubfinger 22 weiter, so daß der nachfolgende Abdeckstab 2 auf die Haltestäbe 3, 13 fallen und dort festgeschweißt werden kann.The most important features of the
Die Vorschubgeschwindigkeit A der Vorschubfinger 22 und die Drehgeschwindigkeit B der Trommel 27 werden so gesteuert und aufeinander abgestimmt, daß zur Herstellung des Schalungselementes 1 die Abdeckstäbe 2 taktweise und mit einem solchen zeitlichen Abstand auf die Haltestäbe 3 fallen, daß der vorbestimmte räumliche Abstand a erreicht wird. Das sich ergebende Flachmaterial wird entommen und ggfs. durch Schneiden und/oder Biegen weiter verarbeitet.The feed speed A of the
Bei der Herstellung des Schalungselementes 1 werden Abdeckstäbe 2 über die gesamte Länge der Haltestäbe 3 aufgeschweißt und das sich ergebende Flachmaterial gegebenenfalls anschließend in die gewünschten Abmessungen geschnitten. Zu diesem Zweck kann sich an die Punktschweißstation eine Schneideinrichtung anschließen, die in Abhängigkeit von der Steuerung des Vorschubs (Taktzahl und Zeit) das Flachmaterial an vorbestimmten Stellen schneidet.During the manufacture of the
Die Herstellung des Schalungselementes 10 erfolgt bevorzugt in zwei Schritten, wobei in einem Schritt die den U-förmigen Bügel bildenden Haltestäbe 13 mit den Abdeckstäben 2 verschweißt werden, wobei durch eine zweckmäßige Steuerung sichergestellt ist, daß die Abdeckstäbe 2 nur an den Schenkeln des U-förmigen Bügels 13 vorgesehen werden, wo sie später eine Schalungswandung bilden, und der Steg des U-förmigen Bügels freibleibt. In einem weiteren Schritt wird in der gleichen Vorrichtung 20 die Halterung 15 hergestellt, wobei die den V-förmigen Bügel 17 bildenden Stäbe analog den Haltestäben 3, und die die Querverbindung bildenden Stäbe 17 analog den Abdeckstäben 2 zugeführt werden. Anschließend werden die beiden Teile des Gerüstes wie in Fig. 2 gezeigt, U- bzw. V-förmig gebogen und zusammengeschweißt.The
In Abwandlung des beschriebenen und gezeichnten Ausführungsbeispiels kann das erfindungsgemäße Schalungselement auch in anderen Formen hergestellt werden, z.B. als Rinnenschalung ohne Fugenbandhalterung. Die Fugenbandhalterung kann weiterhin mit Hilfe von U-förmigen Bügeln statt der in Fig. 2 gezeigten V-förmigen Bügel hergestellt werden. Die Stäbe müssen nicht aus Metall bestehen. Auch können statt der Stäbe mit rundem Querschnitt leisten- oder streifenförmige Stäbe verwendet werden. Wenn sich die Elektroden der Punktschweißeinrichtung senkrecht zur Zeichnungsebene in Fig. 3 bewegen lassen, so ist es mit einer ausgefeilten Steuerung auch möglich, das Schalungselement gemäß Fig. 2 in einem einzigen Arbeitsgang zunächst als Flachmaterial herzustellen und dann entsprechend aufzubiegen. Statt mit Haltestäben können die Abdeckstäbe auch durch Klötzchen oder andere Halteeinrichtungen in ihrer vorbestimmten Position gehalten werden.In a modification of the described and drawn exemplary embodiment, the formwork element according to the invention can also be produced in other forms, for example as gutter formwork without a joint tape holder. The joint tape holder can also be produced with the help of U-shaped brackets instead of the V-shaped bracket shown in FIG. 2. The rods do not have to be made of metal. Instead of bars with a round cross section, strip-shaped or strip-shaped bars can also be used. If the electrodes of the spot welding device can be moved perpendicular to the plane of the drawing in FIG. 3, it is also possible with a sophisticated control to produce the formwork element according to FIG. 2 first as a flat material and then to bend it up accordingly. The cover rods can be used instead of holding rods can also be held in their predetermined position by blocks or other holding devices.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19604766 | 1996-02-09 | ||
DE19604766A DE19604766C1 (en) | 1996-02-09 | 1996-02-09 | Formwork element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0789116A1 true EP0789116A1 (en) | 1997-08-13 |
EP0789116B1 EP0789116B1 (en) | 2007-12-12 |
Family
ID=7784971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96120679A Expired - Lifetime EP0789116B1 (en) | 1996-02-09 | 1996-12-20 | Shuttering element |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0789116B1 (en) |
AT (1) | ATE380911T1 (en) |
DE (2) | DE19604766C1 (en) |
DK (1) | DK0789116T3 (en) |
ES (1) | ES2299176T3 (en) |
PT (1) | PT789116E (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1627978A2 (en) | 2004-08-19 | 2006-02-22 | FWR Solutions GmbH | Formwork element |
EP1978159A1 (en) * | 2007-04-04 | 2008-10-08 | Bauer Spezialtiefbau GmbH | Shuttering device for waterproofing joints in between moduls of foundation slots |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20304109U1 (en) | 2003-03-14 | 2003-06-12 | MSL Mathieu Schalungssysteme und Lufttechnische Komponenten GmbH, 66625 Nohfelden | Waterstop shuttering arrangement has waterstop or joint strip held in pressure contact between upper cross elements of lower sections and lower cross elements of upper sections of shuttering |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR567031A (en) * | 1923-06-05 | 1924-02-23 | Construction process for walls and partitions | |
DE907581C (en) * | 1951-12-13 | 1954-03-25 | Georg Schwab | Plaster support mat made of cane stalks or wooden rods and plaster supports joined together from such mats |
AU481679B2 (en) * | 1974-04-10 | 1975-10-16 | Avi Alpenlandische Veredelungs-Industrie Gesellschaft M. B. H | A reinforcing element for concrete |
DE9005482U1 (en) | 1990-05-14 | 1991-09-12 | Fischer, Willibald, 8312 Dingolfing | Formwork panel |
DE4111062C1 (en) | 1991-04-05 | 1992-05-14 | Peca-Verbundtechnik Gmbh, 8312 Dingolfing, De | |
DE9206140U1 (en) | 1992-05-07 | 1993-09-09 | Peca-Verbundtechnik Gmbh, 84130 Dingolfing | formwork |
DE9412584U1 (en) * | 1994-08-04 | 1994-09-29 | Fa. Walter Holzmann, 49196 Bad Laer | Device for supporting a formwork board on masonry |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH191780A (en) * | 1936-06-05 | 1937-07-15 | Merz Hermann | Component for the production of load-bearing masonry without formwork. |
CH620272A5 (en) * | 1977-04-25 | 1980-11-14 | Jean Bernold | Formwork and reinforcement grid |
FR2616040B1 (en) * | 1987-06-05 | 1990-04-20 | Grimaud Freres Sa | MESH CAGE BOTTOM |
FR2625525A1 (en) * | 1987-12-31 | 1989-07-07 | Carlo Giuseppe Di | Construction process for a swimming pool using reinforced concrete poured simultaneously to form the base, the walls and the surrounds without formwork left in, and the swimming pool thus obtained |
-
1996
- 1996-02-09 DE DE19604766A patent/DE19604766C1/en not_active Expired - Fee Related
- 1996-12-20 PT PT96120679T patent/PT789116E/en unknown
- 1996-12-20 AT AT96120679T patent/ATE380911T1/en not_active IP Right Cessation
- 1996-12-20 DK DK96120679T patent/DK0789116T3/en active
- 1996-12-20 EP EP96120679A patent/EP0789116B1/en not_active Expired - Lifetime
- 1996-12-20 DE DE59611453T patent/DE59611453D1/en not_active Expired - Lifetime
- 1996-12-20 ES ES96120679T patent/ES2299176T3/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR567031A (en) * | 1923-06-05 | 1924-02-23 | Construction process for walls and partitions | |
DE907581C (en) * | 1951-12-13 | 1954-03-25 | Georg Schwab | Plaster support mat made of cane stalks or wooden rods and plaster supports joined together from such mats |
AU481679B2 (en) * | 1974-04-10 | 1975-10-16 | Avi Alpenlandische Veredelungs-Industrie Gesellschaft M. B. H | A reinforcing element for concrete |
DE9005482U1 (en) | 1990-05-14 | 1991-09-12 | Fischer, Willibald, 8312 Dingolfing | Formwork panel |
DE4111062C1 (en) | 1991-04-05 | 1992-05-14 | Peca-Verbundtechnik Gmbh, 8312 Dingolfing, De | |
DE9206140U1 (en) | 1992-05-07 | 1993-09-09 | Peca-Verbundtechnik Gmbh, 84130 Dingolfing | formwork |
DE9412584U1 (en) * | 1994-08-04 | 1994-09-29 | Fa. Walter Holzmann, 49196 Bad Laer | Device for supporting a formwork board on masonry |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1627978A2 (en) | 2004-08-19 | 2006-02-22 | FWR Solutions GmbH | Formwork element |
EP1627978A3 (en) * | 2004-08-19 | 2006-05-03 | FWR Solutions GmbH | Formwork element |
EP1978159A1 (en) * | 2007-04-04 | 2008-10-08 | Bauer Spezialtiefbau GmbH | Shuttering device for waterproofing joints in between moduls of foundation slots |
Also Published As
Publication number | Publication date |
---|---|
ES2299176T3 (en) | 2008-05-16 |
PT789116E (en) | 2008-01-17 |
EP0789116B1 (en) | 2007-12-12 |
DE59611453D1 (en) | 2008-01-24 |
DE19604766C1 (en) | 1997-09-04 |
ATE380911T1 (en) | 2007-12-15 |
DK0789116T3 (en) | 2008-03-31 |
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