EP2526243B1 - Formwork element having a beam - Google Patents

Formwork element having a beam Download PDF

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Publication number
EP2526243B1
EP2526243B1 EP11701071.0A EP11701071A EP2526243B1 EP 2526243 B1 EP2526243 B1 EP 2526243B1 EP 11701071 A EP11701071 A EP 11701071A EP 2526243 B1 EP2526243 B1 EP 2526243B1
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EP
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Prior art keywords
formwork
panel according
support
formwork panel
carrier
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EP11701071.0A
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German (de)
French (fr)
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EP2526243A1 (en
Inventor
Walter Holawe
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Doka GmbH
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Doka GmbH
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36Forms, 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
    • E04G11/48Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50Girders, beams, or the like as supporting members for forms

Definitions

  • the following invention relates to a formwork element with at least one carrier.
  • carriers can be used for laying shuttering panels. Furthermore, they may be suitably provided with a surface suitable as a formwork, so that they act as narrow, strip-like formwork elements. Finally, one or more carriers in a formwork element, such. B. a shuttering panel be integrated and be provided here at the edges and / or between the edges as a cross member.
  • the invention has for its object to provide an improved in terms of handling formwork element.
  • this has at least one carrier.
  • This preferably consists at least partially of metal, in particular steel, but may be any other suitable material, such as. As wood, aluminum or fiber reinforced plastic.
  • a particular challenge is to be able to continue to manipulate the carrier or a plurality of such carriers, which may be integrated into a formwork element.
  • the carrier should save as much weight as possible while at the same time meeting the requirements imposed on the strength. This is achieved according to the invention by the measures described below.
  • the carrier is arched at least slightly in the direction of the concrete to be filled. This essentially means a certain "preload” in the direction of the load, which results in that the load can be absorbed particularly well. This is possible in particular without the risk of bending against the direction of curvature, which would lead to undesired bulges or bulges at the bottom in the finished concrete floor.
  • the curvature described may be formed as a uniform curvature and may be on the order of a few millimeters, depending on the length of the carrier, for example, about 4 millimeters.
  • the carrier may have openings whose size and / or shape and / or orientation and / or distribution changed over the length of the carrier so that the carrier is weakened less in a central region than in at least one end region.
  • a support is usually mounted at its ends, and in its course a uniform line load is applied. This results in a load in middle areas, which is greater than in end areas.
  • the carrier is provided with openings which are either increasingly smaller and / or less in the central region.
  • the openings over the entire carrier can have a substantially constant shape, for example circular, but become smaller towards the middle.
  • the shape and / or orientation of the openings in the direction of the center changed in such a way that a smaller weakening occurs here.
  • such an embodiment optionally in combination with one or more of the features described above or below, as well as the use of at least one opening in a carrier for hanging at least one strap for receiving a further, preferably a timber formwork support as subject of the present application to watch.
  • a clip which can be suspended in at least one opening of a carrier.
  • This can be largely U-shaped with a bottom whose "width" (viewed from above) corresponds approximately to the width of a carrier (also viewed from above, measured perpendicular to the longitudinal extent of the carrier).
  • two legs may be attached to different sides, so that they extend in use largely vertically to different sides of the formwork support.
  • brackets By mutually directed, but offset by the length of the bottom projections or hooks of the bracket can for example in two adjacent openings of a formwork support hung and used for placing one or more wooden formwork beams. It has heretofore been known to provide laterally strip-like projections over substantially the entire length of the carrier in the case of formwork carriers, which have an elevation at their end, so that the described brackets can be suspended.
  • the measure described above, to use openings in the support for hanging ironing, on the other hand offers the advantage that there is a much lower risk of contamination than in the described strip-shaped projections.
  • a support of the formwork panel according to the invention is provided at least at one end with at least two supports directed in the same (usually vertical) direction, arranged at different vertical heights such that the support is at least two different horizontal levels can be placed on other elements of a slab formwork system.
  • the formwork support is arranged substantially horizontally in use, but it is also conceivable that the use position of the formwork support is vertical, and thus that different positions are possible in the lateral direction.
  • at least two supports ensure that the formwork panel according to the invention is particularly versatile.
  • a support of the formwork panel is nailable, for example by a suitable wood insert
  • the supports directed in the same direction have the advantage that this nailability applies to the use on the two (or more) horizontal levels.
  • the "height" of the carrier decreases towards the end, which is associated with the above-described change in shape of the wearer along its length, and also provides for a simple procedure when hanging up.
  • At least one support is sleeve-shaped.
  • Such a form forms a substantially vertically extending cavity into which a substantially vertical projection or pin of a counter-bearing, for example, to a support, can be inserted.
  • the cavity described is limited to at least three, preferably four sides in the horizontal direction and / or provided with a rounded contour, so that a particularly good interaction with round pins, such as a column head, is possible.
  • a formwork panel according to the invention it is further preferred for a formwork panel according to the invention to have at least two existing carriers, in particular between edge carriers transversely extending carriers, less space in a middle region of the panel than in end regions , As a result, the particularly loaded middle region can be reinforced in some way, while weight is saved in the end regions.
  • an embodiment of a formwork panel has proven to be particularly favorable, in which any edge support are not curved, and this measure is used only for the particularly stressful cross member between the edge beams.
  • Fig. 1 is shown exaggerated in a side view and in terms of the curvature of a carrier 10, which is integrated in the example shown in a formwork element, of which, however, only edge profiles 12 are shown.
  • a formwork panel In the final state is above the profiles 12 and the support 10, a formwork panel, is poured onto the concrete.
  • the resulting line load loads the carrier in particular at its central region comparatively extensive, since it is supported at its edges on suitable supports.
  • the carrier according to the invention in the in Fig. 1 shown embodiment curved in the direction of the expected load.
  • This vault is in Fig. 1
  • a few millimeters At the in Fig.
  • the carrier shown may in particular be one of possibly a plurality of such cross members, which are arched at least partially in the manner described, while this may not necessarily be provided for the edge supports or profiles 12 got to.
  • openings 14 are shown which are unevenly distributed over the length of the carrier.
  • openings 14 are according to an alternative inventive measure, but with the in Fig. 1 can be combined over the course of the carrier 20 in terms of their size changed.
  • the openings towards the center are smaller and are completely omitted in the illustrated embodiment in the central region, so that this particularly stressed area is much less weakened than the end regions.
  • the strength can be ensured over the entire course of the carrier, weight being saved especially in the less loaded end regions.
  • FIG. 3 shown third embodiment of a carrier 30 which is additionally designed in the end regions A (according to the position of use) less "high" than in a central region. At the ends of support 32 can be seen.
  • Over the course of the carrier 30 is further provided with openings whose shape, orientation and distribution varies over the length of the carrier.
  • openings are provided in the end regions in the form of a respective comparatively flat triangle whose corners are rounded with different radii.
  • two sides of the triangle are substantially parallel to edges of the beam, namely to the top edge and the bottom edge inclined in this area. The radius of curvature is greatest towards the end of the beam and smallest at the top, toward the inside of the beam.
  • oval or elliptical and rectangular openings may be provided with rounded portions at their ends and, for example, be aligned substantially parallel to the inclined in this area lower edge of the carrier.
  • Elliptical or oval openings and / or openings in any of the shapes described above may be substantially vertically aligned with the center of the carrier as shown, and may be substantially horizontally aligned further toward the center. In the middle of the carrier are also found circular openings. Overall, it could be found for the example shown a special distribution, shape and orientation change of the openings that weight can be saved and at the same time the strength is ensured over the entire course of the wearer.

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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)

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die folgende Erfindung betrifft ein Schalungselement mit zumindest einem Träger.The following invention relates to a formwork element with at least one carrier.

Auf dem Gebiet des Bauwesens ist es insbesondere bei der Erstellung von Betondecken üblich, auf Stützen ein Raster von Trägern aufzulegen, auf denen wiederum Schalungsplatten aufgelegt werden, um nach Abgrenzung der Deckenränder die Betondecke zu gießen.In the field of construction, it is customary, especially in the construction of concrete floors, to place on columns a grid of carriers on which turn formwork panels are placed to pour after delineation of the ceiling edges of the concrete floor.

Somit können Träger zum Einen zum Auflegen von Schalungsplatten verwendet werden. Ferner können sie in geeigneter Weise mit einer als Schalung geeigneten Oberfläche versehen sein, so dass sie als schmale, leistenartige Schalungselemente wirken. Schließlich können ein oder mehrere Träger in ein Schalungselement, wie z. B. ein Schalungspaneel integriert sein und hier an den Rändern und/oder zwischen den Rändern als Querträger vorgesehen sein.Thus, on the one hand carriers can be used for laying shuttering panels. Furthermore, they may be suitably provided with a surface suitable as a formwork, so that they act as narrow, strip-like formwork elements. Finally, one or more carriers in a formwork element, such. B. a shuttering panel be integrated and be provided here at the edges and / or between the edges as a cross member.

STAND DER TECHNIKSTATE OF THE ART

Die vorangehend beschriebenen Träger und Schalungselemente sind als Vorbenutzungsgegenstände bekannt.The carriers and shuttering elements described above are known as Vorbenutzungsgegenstände.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Der Erfindung liegt die Aufgabe zugrunde, ein im Hinblick auf die Handhabbarkeit verbessertes Schalungselement zu schaffen.The invention has for its object to provide an improved in terms of handling formwork element.

Die Lösung dieser Aufgabe erfolgt durch das in Anspruch 1 beschriebene Schalungspaneel.The solution to this problem is achieved by the formwork panel described in claim 1.

Demzufolge weist dieses zumindest einen Träger auf. Dieser besteht bevorzugt zumindest teilweise aus Metall, insbesondere Stahl, kann jedoch jedes andere geeignete Material, wie z. B. Holz, Aluminium oder faserverstärkten Kunststoff aufweisen. Insbesondere bei Stahlträgern besteht jedoch eine besondere Herausforderung darin, den Träger bzw. mehrere derartige Träger, die in ein Schalungselement integriert sein können, weiterhin manipulieren zu können. Mit anderen Worten ist bei dem Träger möglichst umfangreich Gewicht einzusparen, wobei gleichzeitig die an die Festigkeit gestellten Anforderungen zu erfüllen sind. Dies wird erfindungsgemäß durch die nachfolgend beschriebenen Maßnahmen erreicht.Consequently, this has at least one carrier. This preferably consists at least partially of metal, in particular steel, but may be any other suitable material, such as. As wood, aluminum or fiber reinforced plastic. In the case of steel beams, however, a particular challenge is to be able to continue to manipulate the carrier or a plurality of such carriers, which may be integrated into a formwork element. In other words, the carrier should save as much weight as possible while at the same time meeting the requirements imposed on the strength. This is achieved according to the invention by the measures described below.

Der Träger ist zumindest geringfügig in Richtung des einzufüllenden Betons gewölbt. Dies bedeutet im Wesentlichen eine gewisse "Vorspannung" in Richtung der Belastung, die dazu führt, dass die Belastung besonders gut aufgenommen werden kann. Dies ist insbesondere ohne der Gefahr einer Durchbiegung entgegen der Wölbungsrichtung möglich, was bei der fertigen Betondecke zu ungewünschten Auswölbungen oder - bauchungen an der Unterseite führen würde. Die beschriebene Wölbung kann als gleichmäßige Krümmung ausgebildet sein und kann in der Größenordnung von einigen Millimetern, in Abhängigkeit von der Länge des Trägers, beispielsweise etwa 4 Millimeter betragen.The carrier is arched at least slightly in the direction of the concrete to be filled. This essentially means a certain "preload" in the direction of the load, which results in that the load can be absorbed particularly well. This is possible in particular without the risk of bending against the direction of curvature, which would lead to undesired bulges or bulges at the bottom in the finished concrete floor. The curvature described may be formed as a uniform curvature and may be on the order of a few millimeters, depending on the length of the carrier, for example, about 4 millimeters.

Zum Anderen kann der Träger Öffnungen aufweisen, deren Größe und/oder Form und/oder Ausrichtung und/oder Verteilung sich über die Länge des Trägers derart verändert, dass der Träger in einem mittleren Bereich weniger geschwächt ist als in zumindest einem Endbereich. Diesbezüglich ist zu berücksichtigen, dass ein derartiger Träger üblicherweise an seinen Enden gelagert ist, und in seinem Verlauf eine gleichmäßige Streckenlast aufgebracht wird. Dies führt zu einer Belastung in mittleren Bereichen, die größer ist als in Endbereichen. Dem wird erfindungsgemäß dadurch Rechnung getragen, wobei gleichzeitig die Möglichkeiten der Gewichtseinsparung genutzt werden, dass der Träger mit Öffnungen versehen wird, die im mittleren Bereich entweder zunehmend kleiner und/oder weniger werden. Hierbei können die Öffnungen über den gesamten Träger eine weitgehend gleichbleibende Form, beispielsweise kreisförmig, aufweisen, jedoch zur Mitte hin kleiner werden. Alternativ oder ergänzend ist es denkbar, dass sich die Form und/oder Ausrichtung der Öffnungen in Richtung der Mitte derart verändert, dass hier eine geringere Schwächung auftritt. Beispielsweise kann von einer Ellipsenform in den randnahen Zonen auf eine Kreisform im mittleren Bereich übergegangen werden, und/oder elliptische Öffnungen können horizontal statt vertikal ausgerichtet werden. Durch die beschriebenen Maßnahmen oder eine Kombination derselben lässt sich insbesondere an einem Stahlträger umfangreich Gewicht einsparen, und gleichzeitig lassen sich die Festigkeitsanforderungen in vorteilhafter Weise erfüllen.On the other hand, the carrier may have openings whose size and / or shape and / or orientation and / or distribution changed over the length of the carrier so that the carrier is weakened less in a central region than in at least one end region. In this regard, it should be noted that such a support is usually mounted at its ends, and in its course a uniform line load is applied. This results in a load in middle areas, which is greater than in end areas. This is inventively taken into account, while the possibilities of weight saving are used, that the carrier is provided with openings which are either increasingly smaller and / or less in the central region. In this case, the openings over the entire carrier can have a substantially constant shape, for example circular, but become smaller towards the middle. Alternatively or additionally, it is conceivable that the shape and / or orientation of the openings in the direction of the center changed in such a way that a smaller weakening occurs here. For example, it is possible to move from an ellipse shape in the zones near the edge to a circular shape in the middle region, and / or elliptical openings can be aligned horizontally instead of vertically. By the described measures or a combination thereof can be saved in particular on a steel beam extensive weight, and at the same time can meet the strength requirements in an advantageous manner.

Dies gilt in gleicher Weise für diejenige Maßnahme, wonach der Träger selbst im Hinblick auf seine Abmessungen über die Länge derart gestaltet ist, dass er in einem mittleren Bereich weniger geschwächt ist als in zumindest einem Endbereich. Dies lässt sich beispielsweise dadurch bewerkstelligen, dass der Träger, der in einer Schnittdarstellung den Eindruck einer "Hochkant"-Anordnung macht, im mittleren Bereich "höher" und damit stabiler ist, als in Randbereichen. Auch hierdurch kann die Festigkeit über die gesamte Länge, insbesondere auch in dem mittleren Bereich gewährleistet werden, und gleichzeitig insbesondere an den Rändern Gewicht eingespart werden.This applies equally to the measure according to which the carrier itself is designed in terms of its dimensions over the length such that it is less weakened in a central region than in at least one end region. This can be accomplished, for example, by the fact that the carrier, which in a sectional view gives the impression of an "edgewise" arrangement, is "higher" in the central area and thus more stable than in peripheral areas. This also allows the strength over the entire length, especially in the middle region be guaranteed, and at the same time, especially at the edges to save weight.

Bevorzugte Weiterbildungen des erfindungsgemäßen Schalungspaneels sind in den weiteren Ansprüchen beschrieben.Preferred developments of the formwork panel according to the invention are described in the further claims.

Im Hinblick auf die vielseitige Verwendbarkeit des Trägers hat es sich als vorteilhaft erwiesen, zumindest eine Öffnung derart auszubilden, dass darin zumindest ein Bügel zur Auflage eines weiteren, vorzugsweise eines Holz-Schalungsträgers einhängbar ist. Hierdurch kann die Kompatibilität mit anderen Deckenschalungssystemen, die beispielsweise HolzSchalungsträger aufweisen, gewährleistet werden. Ferner ist die beschriebene Einhängbarkeit für die besonders flexible Ausgestaltung vom Randbereich des erfindungsgemäßen Deckenschalungssystems günstig. Es sei erwähnt, dass für das Einhängen des beschriebenen Bügels eine regelmäßige Anordnung, mit anderen Worten eine Art Raster, von gegebenenfalls gleichgroßen und/oder gleichförmigen Öffnungen denkbar ist. Insbesondere ist eine derartige Ausführungsform, gegebenenfalls in Kombination mit einem oder mehreren der vorangehend oder nachfolgend beschriebenen Merkmale, sowie die Verwendung von zumindest einer Öffnung in einem Träger zum Einhängen zumindest eines Bügels zur Aufnahme eines weiteren, vorzugsweise eines Holz-Schalungsträgers als Gegenstand der vorliegenden Anmeldung anzusehen. Dies gilt in gleicher Weise für einen in zumindest eine Öffnung eines Trägers einhängbaren Bügel. Dieser kann weitgehend U-förmig gestaltet sein mit einem Boden, dessen "Breite" (von oben betrachtet) in etwa der Breite eines Trägers (ebenfalls von oben betrachtet, senkrecht zur Längserstreckung des Trägers gemessen) entspricht. An diesem Boden können zwei Schenkel an unterschiedlichen Seiten angebracht sein, so dass sie sich im Gebrauchszustand weitgehend vertikal zu unterschiedlichen Seiten des Schalungsträgers erstrecken. Durch zueinander gerichtete, aber um die Länge des Bodens versetzte Vorsprünge oder Haken kann der Bügel beispielsweise in zwei nebeneinanderliegende Öffnungen eines Schalungsträgers eingehängt und zum Auflegen eines oder mehrerer Holzschalungsträger genutzt werden. Bislang war es bekannt, bei Schalungsträgern seitlich leistenförmige Vorsprünge über im Wesentlichen die gesamte Länge des Trägers vorzusehen, die an ihrem Ende eine Erhöhung aufweisen, so dass die beschriebenen Bügel eingehängt werden können. Die vorangehend beschriebene Maßnahme, Öffnungen im Träger für das Einhängen von Bügeln zu nutzen, bietet demgegenüber den Vorteil, dass eine deutlich geringere Verschmutzungsgefahr besteht als bei den beschriebenen leistenförmigen Vorsprüngen.In view of the versatility of the carrier, it has proven to be advantageous to form at least one opening such that at least one bracket for supporting another, preferably a wooden formwork support is suspended. As a result, the compatibility with other slab formwork systems, which have, for example, timber formwork support can be ensured. Furthermore, the described suspension for the particularly flexible embodiment of the edge region of the slab formwork system according to the invention is low. It should be noted that for the hanging of the described strap a regular arrangement, in other words a kind of grid, of possibly equal and / or uniform openings is conceivable. In particular, such an embodiment, optionally in combination with one or more of the features described above or below, as well as the use of at least one opening in a carrier for hanging at least one strap for receiving a further, preferably a timber formwork support as subject of the present application to watch. This applies in the same way for a clip which can be suspended in at least one opening of a carrier. This can be largely U-shaped with a bottom whose "width" (viewed from above) corresponds approximately to the width of a carrier (also viewed from above, measured perpendicular to the longitudinal extent of the carrier). On this floor, two legs may be attached to different sides, so that they extend in use largely vertically to different sides of the formwork support. By mutually directed, but offset by the length of the bottom projections or hooks of the bracket can for example in two adjacent openings of a formwork support hung and used for placing one or more wooden formwork beams. It has heretofore been known to provide laterally strip-like projections over substantially the entire length of the carrier in the case of formwork carriers, which have an elevation at their end, so that the described brackets can be suspended. The measure described above, to use openings in the support for hanging ironing, on the other hand offers the advantage that there is a much lower risk of contamination than in the described strip-shaped projections.

Für die flexible Verwendbarkeit wird darüber hinaus bevorzugt, dass ein Träger des erfindungsgemäßen Schalungspaneels an zumindest einem Ende mit zumindest zwei in die gleiche (üblicherweise vertikale) Richtung gerichteten Auflagern versehen ist, die derart auf unterschiedlichen vertikalen Höhen angeordnet sind, dass der Träger auf zumindest zwei unterschiedlichen horizontalen Niveaus auf andere Elemente eines Deckenschalungssystems auflegbar ist. Bei dieser Betrachtung wird davon ausgegangen, dass der Schalungsträger im Gebrauch weitgehend horizontal angeordnet ist, es ist jedoch ebenfalls denkbar, dass die Gebrauchsstellung des Schalungsträgers vertikal ist, und dass somit in seitlicher Richtung unterschiedliche Stellungen möglich sind. In jedem Fall sorgen die in die gleiche Richtung gerichteten, zumindest zwei Auflager dafür, dass das erfindungsgemäße Schalungspaneel besonders vielseitig einsetzbar ist.For flexible usability, it is further preferred that a support of the formwork panel according to the invention is provided at least at one end with at least two supports directed in the same (usually vertical) direction, arranged at different vertical heights such that the support is at least two different horizontal levels can be placed on other elements of a slab formwork system. In this consideration, it is assumed that the formwork support is arranged substantially horizontally in use, but it is also conceivable that the use position of the formwork support is vertical, and thus that different positions are possible in the lateral direction. In any case, directed in the same direction, at least two supports ensure that the formwork panel according to the invention is particularly versatile.

Wenn ein Träger des Schalungspaneels, beispielsweise durch einen geeigneten Holzeinsatz, nagelbar ist, besteht durch die in die gleiche Richtung gerichteten Auflager der Vorteil, dass diese Nagelbarkeit für den Einsatz auf den beiden (oder mehreren) horizontalen Niveaus gilt.If a support of the formwork panel is nailable, for example by a suitable wood insert, the supports directed in the same direction have the advantage that this nailability applies to the use on the two (or more) horizontal levels.

Hierbei hat es sich für die Handhabung des Trägers als vorteilhaft herausgestellt, wenn das höhere Auflager näher zum Ende des Trägers angeordnet ist, als das niedrigere Auflager. Mit anderen Worten nimmt die "Höhe" des Trägers zum Ende hin ab, was mit der oben bereits beschriebenen Formveränderung des Trägers über dessen Länge einhergeht, und darüber hinaus für eine einfache Vorgehensweise beim Auflegen sorgt.In this case, it has proven advantageous for the handling of the carrier when the higher support is arranged closer to the end of the carrier than the lower support. In other words, the "height" of the carrier decreases towards the end, which is associated with the above-described change in shape of the wearer along its length, and also provides for a simple procedure when hanging up.

Als Materialien für zumindest ein Auflager haben sich bei ersten Versuchen dessen Ausbildung zumindest bereichsweise aus Metall, insbesondere Stahl und/oder einem Kunststoff, insbesondere faserverstärkt, als günstig herausgestellt.As materials for at least one support whose training at least partially made of metal, especially steel and / or a plastic, in particular fiber-reinforced, proved to be favorable in initial experiments.

Um eine Sicherung in sämtlichen horizontalen Richtungen zu erreichen, wird für zumindest ein Auflager derzeit ferner bevorzugt, dass dieses hülsenförmig ausgebildet ist. Eine derartige Form bildet einen sich weitgehend vertikal erstreckenden Hohlraum, in den ein sich weitgehend vertikaler Vorsprung oder Stift eines Gegen-Auflagers, beispielsweise an einer Stütze, eingefügt werden kann. Insbesondere ist der beschriebene Hohlraum auf zumindest drei, bevorzugt vier Seiten in horizontaler Richtung begrenzt und/oder mit einer abgerundeten Kontur versehen, so dass eine besonders gute Zusammenwirkung mit runden Stiften, beispielsweise eines Stützenkopfes, möglich ist.In order to achieve a security in all horizontal directions, it is currently further preferred for at least one support that it is sleeve-shaped. Such a form forms a substantially vertically extending cavity into which a substantially vertical projection or pin of a counter-bearing, for example, to a support, can be inserted. In particular, the cavity described is limited to at least three, preferably four sides in the horizontal direction and / or provided with a rounded contour, so that a particularly good interaction with round pins, such as a column head, is possible.

Besondere Vorteile im Hinblick auf die Handhabbarkeit, und insbesondere im Hinblick auf den flexiblen Einsatz sind bei derjenigen bevorzugten Ausführungsformen gegegeben, bei der unterhalb eines ersten Auflagers ein zweites Auflager zu- und wegklappbar ist. Bei dieser Ausführungsform ändert sich die Länge des Trägers bei Verwendung der verschiedenen Auflager nicht, so dass günstige Eigenschaften erreicht werden. Insbesondere fluchten die beiden Auflager im zugeklappten Zustand des unteren Auflagers im Wesentlichen miteinander.Particular advantages in terms of manageability, and in particular with regard to the flexible use are given in those preferred embodiments, in which below a first support a second support and can be folded away. In this embodiment, the length of the carrier does not change when using the various supports, so that favorable properties are achieved. In particular, the two supports in the closed state of the lower support are substantially aligned with each other.

In Übereinstimmung mit dem Grundgedanken der Erfindung, nämlich die Festigkeitsanforderungen zu erfüllen und gleichzeitig Gewicht einzusparen, wird für ein erfindungsgemäßes Schalungspaneel ferner bevorzugt, zumindest zwei vorhandene Träger, insbesondere zwischen Randträgern quer verlaufende Träger, in einem mittleren Bereich des Paneels geringer zu beabstanden als in Endbereichen. Hierdurch kann der besonders belastete mittlere Bereich in gewisser Weise verstärkt werden, während in den Endbereichen Gewicht eingespart wird.In accordance with the basic idea of the invention, namely to meet the strength requirements and at the same time to save weight, it is further preferred for a formwork panel according to the invention to have at least two existing carriers, in particular between edge carriers transversely extending carriers, less space in a middle region of the panel than in end regions , As a result, the particularly loaded middle region can be reinforced in some way, while weight is saved in the end regions.

Schließlich hat sich eine Ausführungsform eines Schalungspaneels als besonders günstig erwiesen, bei dem jegliche Randträger nicht gewölbt sind, und diese Maßnahme lediglich für die besonders belastenden Querträger zwischen den Randträgern genutzt wird.Finally, an embodiment of a formwork panel has proven to be particularly favorable, in which any edge support are not curved, and this measure is used only for the particularly stressful cross member between the edge beams.

KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Nachfolgend werden beispielhaft in den Zeichnungen dargestellte Ausführungsformen der Erfindung näher erläutert. Es zeigen:

Fig. 1
eine schematische Ansicht eines in ein erfindungsgemäßes Schalungspaneel integrierten Trägers;
Fig. 2
eine weitere Ausführungsform eines Trägers; und
Fig. 3
eine noch weitere Ausführungsform eines Trägers.
Embodiments of the invention illustrated by way of example in the drawings will be explained in more detail below. Show it:
Fig. 1
a schematic view of an integrated in a formwork panel according to the invention carrier;
Fig. 2
another embodiment of a carrier; and
Fig. 3
a still further embodiment of a carrier.

AUSFÜHRLICHE BESCHREIBUNG BEVORZUGTER AUSFÜHRUNGSFORMEN DER ERFINDUNGDETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION

In Fig. 1 ist in einer Seitenansicht und im Hinblick auf die Wölbung übertrieben dargestellt ein Träger 10 gezeigt, der in dem gezeigten Beispiel in ein Schalungselement integriert ist, von dem jedoch lediglich Randprofile 12 gezeigt sind. Im Endzustand befindet sich oberhalb der Profile 12 und des Trägers 10 eine Schalungsplatte, auf die Beton gegossen wird. Die entstehende Streckenlast belastet den Träger insbesondere an seinem mittleren Bereich vergleichsweise umfangreich, da er an seinen Rändern an geeigneten Auflagern abgestützt ist. Um dieser Belastung in Form einer Art Vorspannung entgegenzuwirken, ist der erfindungsgemäße Träger in der in Fig. 1 gezeigten Ausführungsform in Richtung der zu erwartenden Belastung gewölbt. Diese Wölbung ist in Fig. 1 zur Verdeutlichung übertrieben dargestellt, beträgt in der Praxis jedoch, in Abhängigkeit von der Länge des Trägers, einige Millimeter. Bei dem in Fig. 1 gezeigten Träger kann es sich insbesondere um einen von gegebenenfalls mehreren derartigen Querträgern handeln, die zumindest teilweise in der beschriebenen Weise gewölbt sind, während dies für die Randträger oder -profile 12 nicht unbedingt vorgesehen sein muss. Bei der in Fig. 1 gezeigten Ausführungsform sind darüber hinaus Öffnungen 14 dargestellt, die ungleichmäßig über die Länge des Trägers verteilt sind.In Fig. 1 is shown exaggerated in a side view and in terms of the curvature of a carrier 10, which is integrated in the example shown in a formwork element, of which, however, only edge profiles 12 are shown. In the final state is above the profiles 12 and the support 10, a formwork panel, is poured onto the concrete. The resulting line load loads the carrier in particular at its central region comparatively extensive, since it is supported at its edges on suitable supports. To counteract this load in the form of a kind of bias, the carrier according to the invention in the in Fig. 1 shown embodiment curved in the direction of the expected load. This vault is in Fig. 1 However, in practice, depending on the length of the carrier, in practice, a few millimeters. At the in Fig. 1 The carrier shown may in particular be one of possibly a plurality of such cross members, which are arched at least partially in the manner described, while this may not necessarily be provided for the edge supports or profiles 12 got to. At the in Fig. 1 In addition, openings 14 are shown which are unevenly distributed over the length of the carrier.

Bei der in Fig. 2 gezeigten Ausführungsform sind derartige Öffnungen 14 gemäß einer alternativen erfindungsgemäßen Maßnahme, die jedoch mit der in Fig. 1 gezeigten Wölbung kombiniert werden kann, über den Verlauf des Trägers 20 im Hinblick auf ihre Größe verändert. Insbesondere werden die Öffnungen zur Mitte hin kleiner und sind bei der gezeigten Ausführungsform in dem mittleren Bereich vollständig weggelassen, so dass dieser besonders belastete Bereich deutlich weniger geschwächt ist als die Endbereiche. Hierdurch kann über den gesamten Verlauf des Trägers die Festigkeit sichergestellt werden, wobei insbesondere in den weniger belasteten Endbereichen Gewicht eingespart wird.At the in Fig. 2 In the embodiment shown, such openings 14 are according to an alternative inventive measure, but with the in Fig. 1 can be combined over the course of the carrier 20 in terms of their size changed. In particular, the openings towards the center are smaller and are completely omitted in the illustrated embodiment in the central region, so that this particularly stressed area is much less weakened than the end regions. As a result, the strength can be ensured over the entire course of the carrier, weight being saved especially in the less loaded end regions.

Dies gilt in gleicher Weise für die in Fig. 3 gezeigte dritte Ausführungsform eines Trägers 30, der zusätzlich in den Endbereichen A (gemäß der Gebrauchsstellung) weniger "hoch" gestaltet ist als in einem mittleren Bereich. An den Enden sind Auflager 32 zu erkennen. Über den Verlauf ist der Träger 30 ferner mit Öffnungen versehen, deren Form, Ausrichtung und Verteilung sich über die Länge des Trägers verändert. In dem gezeigten Beispiel sind in den Endbereichen Öffnungen in Form eines jeweils vergleichsweise flachen Dreiecks vorgesehen, dessen Ecken mit unterschiedlichen Radien gerundet sind. In dem gezeigten Beispiel sind zwei Seiten des Dreiecks weitgehend parallel zu Kanten des Trägers, nämlich zu der Oberkante und der in diesem Bereich geneigt nach oben verlaufenden Unterkante. Der Rundungsradius ist zu dem Ende des Trägers hin am größten und an der oberen, zur Innenseite des Trägers gelegenen Ecke am kleinsten. Anstelle der gezeigten Öffnungen können auch ovale oder elliptische sowie rechteckige Öffnungen mit Rundungen an ihren Enden vorgesehen und beispielsweise weitgehend parallel zur in diesem Bereich geneigten Unterkante des Trägers ausgerichtet sein. Elliptische oder ovale Öffnungen und/oder Öffnungen in einer der vorangehend beschriebenen Formen können zur Mitte des Trägers hin, wie gezeigt, weitgehend vertikal ausgerichtet sein, und noch weiter zur Mitte hin weitgehend horizontal ausgerichtet sein. In der Mitte des Trägers finden sich ferner kreisförmige Öffnungen. Insgesamt konnte für das gezeigte Beispiel einer besonderen Verteilung, Form- und Ausrichtungsveränderung der Öffnungen festgestellt werden, dass Gewicht eingespart werden kann und gleichzeitig die Festigkeit über den gesamten Verlauf des Trägers gewährleistet ist.This applies equally to the in Fig. 3 shown third embodiment of a carrier 30 which is additionally designed in the end regions A (according to the position of use) less "high" than in a central region. At the ends of support 32 can be seen. Over the course of the carrier 30 is further provided with openings whose shape, orientation and distribution varies over the length of the carrier. In the example shown, openings are provided in the end regions in the form of a respective comparatively flat triangle whose corners are rounded with different radii. In the example shown, two sides of the triangle are substantially parallel to edges of the beam, namely to the top edge and the bottom edge inclined in this area. The radius of curvature is greatest towards the end of the beam and smallest at the top, toward the inside of the beam. Instead of the openings shown also oval or elliptical and rectangular openings may be provided with rounded portions at their ends and, for example, be aligned substantially parallel to the inclined in this area lower edge of the carrier. Elliptical or oval openings and / or openings in any of the shapes described above may be substantially vertically aligned with the center of the carrier as shown, and may be substantially horizontally aligned further toward the center. In the middle of the carrier are also found circular openings. Overall, it could be found for the example shown a special distribution, shape and orientation change of the openings that weight can be saved and at the same time the strength is ensured over the entire course of the wearer.

Claims (9)

  1. Form work panel having at least one beam (10, 20, 30) preferably made of steel
    which is at least slightly arched in the direction of the concrete to be poured in, and
    (1) with respect to its dimensions over the length is designed in such a way that the beam (10, 20, 30) is less weakened in a central region than in end regions (A), and/or
    (2) has openings (14) of which the size and/or shape and/or orientation and/or distribution varies over the length of the beam (10, 20, 30) in such a way that the beam (10, 20, 30) is less weakened in a central region than in end regions (A).
  2. Formwork panel according to claim 1, characterised in that at least one U-shaped member can be mounted in at least one opening (14) in a beam for supporting an additional formwork beam, preferably a wooden formwork beam.
  3. Formwork panel according to any of the preceding claims, characterised in that the beam in use is to a large extent horizontally arranged and at at least one end is provided with two supports (32) extending in the same direction, which are arranged at different vertical heights in such a way that the beam (30) at at least two different horizontal levels can be laid on other elements of a ceiling formwork system.
  4. Formwork panel according to claim 3, characterised in that the higher support is arranged closer to the end of the ceiling formwork beam (30) than the lower support.
  5. Formwork panel according to claim 3 or 4, characterised in that at least one support (32) in at least one region is made of metal and/or a fibre-reinforced plastic.
  6. Formwork panel according to any of claims 3 to 5, characterised in that at least one support (32) is bush-like.
  7. Formwork panel according to one or more of claims 3 to 6, characterised in that at least one support can be pivoted in and out below an additional support (32).
  8. Formwork panel according to any of the preceding claims, having several beams (10, 20, 30) at least two of which are more closely spaced in a central region of the formwork panel than in end regions.
  9. Formwork panel according to any of the preceding claims, having edge beams and crossbeams between the edge beams, characterised in that only at least one crossbeam is arched.
EP11701071.0A 2010-01-20 2011-01-19 Formwork element having a beam Active EP2526243B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010001041 DE102010001041A1 (en) 2010-01-20 2010-01-20 Slab formwork support and formwork element with a support
PCT/EP2011/050664 WO2011089149A1 (en) 2010-01-20 2011-01-19 Ceiling formwork beam and formwork element having a beam

Publications (2)

Publication Number Publication Date
EP2526243A1 EP2526243A1 (en) 2012-11-28
EP2526243B1 true EP2526243B1 (en) 2014-12-24

Family

ID=43761952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11701071.0A Active EP2526243B1 (en) 2010-01-20 2011-01-19 Formwork element having a beam

Country Status (4)

Country Link
EP (1) EP2526243B1 (en)
DE (1) DE102010001041A1 (en)
ES (1) ES2532390T3 (en)
WO (1) WO2011089149A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206353A1 (en) 2012-04-18 2013-10-24 Doka Industrie Gmbh Lifting device for slab formwork elements and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386161A (en) * 1943-05-24 1945-10-02 Bryant & Son Ltd C Temporary support for use in casting concrete floors and similar purposes
US2727281A (en) * 1951-08-07 1955-12-20 Cruciani Eusebio Centering for construction of arches
DE1818217U (en) * 1960-06-07 1960-09-15 Wuppermann Gmbh Theodor CUP OR SIMILAR PROFILE, IN PARTICULAR FOR FORMWORK BEAM.
US4569501A (en) * 1984-05-29 1986-02-11 Economy Forms Corporation Cambered truss header for a shoring structure
ES2196951B1 (en) * 2001-04-18 2004-10-16 Ingenieria De Encofrados Y Servicios, S.L. RECOVERY FORMWORK.
ITPN20050085A1 (en) * 2005-11-28 2007-05-29 Ezio Sedran PLASTIC BEAM FOR THE CREATION OF HORIZONTAL CONSTRUCTION STRUCTURES.
DE102007026499B3 (en) * 2007-06-05 2009-02-05 Peri Gmbh Support element for a concrete formwork with device for automatic compensation of bending deformations

Also Published As

Publication number Publication date
WO2011089149A1 (en) 2011-07-28
EP2526243A1 (en) 2012-11-28
DE102010001041A1 (en) 2011-07-21
ES2532390T3 (en) 2015-03-26

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