EP2678493B1 - Fastening bracket for slab edge formwork elements - Google Patents

Fastening bracket for slab edge formwork elements Download PDF

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Publication number
EP2678493B1
EP2678493B1 EP12708081.0A EP12708081A EP2678493B1 EP 2678493 B1 EP2678493 B1 EP 2678493B1 EP 12708081 A EP12708081 A EP 12708081A EP 2678493 B1 EP2678493 B1 EP 2678493B1
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EP
European Patent Office
Prior art keywords
limb
fastening bracket
cover plate
base
retaining
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EP12708081.0A
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German (de)
French (fr)
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EP2678493A1 (en
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Pino Albanese
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Individual
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Priority to EP15183345.6A priority Critical patent/EP2977526B1/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
    • E04G11/365—Stop-end shutterings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges

Definitions

  • the invention relates to a mounting bracket for Deckenrandabschalitch according to the preamble of claims 1 and 8.
  • Fixing brackets also called Abschalwinkel, are used for attaching Abschalbrettern or lost formwork for attaching formwork, which remain after concreting the ceiling in the building.
  • the mounting brackets are usually attached to the slab formwork with nails, then the shuttering is also attached with nails to the mounting brackets.
  • the fixing brackets are embedded in the concrete mass for the ceiling and are then no longer visible.
  • the known Abschal- or mounting bracket are made of steel or plastic. Since the construction is purchased very cost-conscious and steel angles are more expensive than those made of plastic, therefore, various versions of plastic angles are known.
  • the bending stiffness of the base leg and the entire angle can be significantly increased.
  • the flexural rigidity can be significantly increased according to the craftsman's desire and to the respective specifications to adjust. The stiffness then surpasses the values of more expensive full metal angles.
  • the in FIG. 1 designated by reference numeral 1 attachment or Abschalwinkel, short angle called 1 comprises a base leg 3 and a holding leg 5.
  • the two legs 3, 5 are connected to each other such that the bearing surfaces 7 on the base leg at a right angle to the holding leg or to the End faces of the holding leg 5 attached nail loops 9 are.
  • the base leg 3 comprises a lower cover plate 11 and an upper cover plate 13.
  • feet 15 are formed, which form the support surface 7 on the formwork.
  • a framework is formed, which is formed by roof-like strut pairs 17 and 19 and optionally additional vertical support 21.
  • the roof-like two pairs of struts 17, 19 are either ever parallel or at a very acute angle.
  • the apex S of the upper strut pair 17 is connected to the upper cover plate 13; the lower edges of the upper strut pair 17 are connected to the lower cover plate 11.
  • the apex of the lower strut pair 19 is spaced from the apex of the upper strut pair 17 and is connected to the vertical support 21.
  • the vertexes of both strut pairs 17, 19 meet at the upper cover plate 13 and are connected there directly to the cover plate 13. In the in FIG.
  • the two legs of the upper strut pair 17 meet with the upper cover plate 13 at a tubular node 55th
  • the one or more struts 17, 19, which lead from the upper cover plate 13 to the holding leg 5, also omitted or replaced by a differently structured framework.
  • the free end of the base leg 3 may have a taper 4, on which an extension element, which is not shown in the figures, can be placed.
  • a foot 15 is also formed on the lower surface thereof.
  • One of the feet 15 is preferably below the apex of the pairs of struts 17, 19 or, if only one extending to the free end of the base leg 3 strut is present, below the upper connection to the upper cover plate thirteenth
  • the base leg 3 extends - in contrast to the known mounting brackets - back preferably to the outer surface 23 of the retaining leg 5, on which the nail loops 9 are formed.
  • the connecting region between the base leg 3 and retaining leg 5 is effected by again roof-like arranged first and second auxiliary struts 25 and 27, wherein the apex of which is connected to the inner surface 29 of the retaining leg 5.
  • the whole front part of the base leg 3 is thus suspended at the support or attachment point on the slab formwork 57 (see. FIG. 5 ).
  • mushroom-shaped pins 31 are formed laterally, which are radially inwardly deformed by crosswise incisions.
  • the pins 31 may be formed by cylindrical thickening of the pairs of struts 17 or another pair of struts and project beyond this.
  • differently shaped locking elements may also occur.
  • the lower and the upper cover plate 11, 13 have, in an advantageous embodiment, a greater width b than the width of the at least one strut 17 and / or 19 of the truss. This measure allows between the two cover plates 11, 13 play a stiffening plate or a stiffening angle 33 made of steel, preferably made of high-strength steel, plastic or other material.
  • the stiffening angle 33 3 holes are provided according to the arrangement of the pins 31 on the base leg, passed through the pins or locking elements 31 and engage after complete pressing of the stiffening angle 33 to the struts 17, 19. This results in a substantial increase in the already existing high rigidity of the base leg 3. Similarly, the outer surface 23 and the inner surface 29 of the retaining leg 5 project beyond the side surfaces 35. The space between them is filled when clipping one or two stiffening angle 33. There, too, the stiffening angle 33 is therefore held substantially free of play and is held insoluble by also existing pin 31.
  • the latching means 31 are arranged offset on the two side surfaces and offset staggered in the stiffening angles in each case two holes. As a result, the angle 1 can be packed together side by side for transportation.
  • the nail loops 9, in the present example according to FIG. 5 five in number, are not as in the prior art in pairs and often also interconnected side by side, but each offset by half of the distances. This allows an unobstructed zig-zag flow of liquid concrete between a board on which rest the nail loops 9 and the Outer surface 23 of the retaining leg 5. This results in a smooth pore-free concrete surface in the area of the visible ceiling edge.
  • the liquid concrete can therefore flow unhindered zigzag down. This causes a better Einbetonieren the angle 1, a more homogeneous surface and thereby additionally prevents the breaking out of the ceiling forehead under load of the angle. 1
  • a fin 41 may be formed, the outer edge 43 is in the common plane of the end faces 45 of the nail loops 9.
  • the upper end of the retaining leg 5 has a smaller cross section over a portion, which is the Sliding an extension attachment 53 allows. This allows the installation of clamping Deckenrandabschalungs-systems, with which a formwork panel 67 can be held during the casting of the ceiling from the outside. It can also be put on a railing post.
  • the stiffening angle 33 can be extended at the stiffening angle 33 of the holding leg 5 so that it projects into one or at most two attachments 53 and thus significantly increases their flexural strength.
  • FIG. 5 In the schematic representation according to FIG. 5 is the mounting bracket 1 on the slab formwork 57, which is supported by a ceiling support 59, attached. The attachment via nails 61, which have been driven from above through the base leg 3 in the formwork 57. Like from the FIG. 5 It can be seen that they often lie not all feet 15 on the formwork 57, in particular not on the upper edge 63 of a wall 65, since the latter is usually not aligned with the surface of the formwork 57 or is not flat in a cast wall. The foot 15 under the retaining leg 5 and possibly also the adjacent base leg 3 therefore find no support. In dash-dotted lines a Deckenrand-Abschalplatte 67 is indicated to illustrate the situation. From the schematic representation in FIG.

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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

Gegenstand der Erfindung ist ein Befestigungswinkel für Deckenrandabschalungen gemäss Oberbegriff der Patentansprüche 1 und 8.The invention relates to a mounting bracket for Deckenrandabschalungen according to the preamble of claims 1 and 8.

Befestigungswinkel, auch Abschalwinkel genannt, dienen zum Befestigen von Abschalbrettern oder bei verlorenen Schalungen zum Befestigen von Abschalungen, die nach dem Betonieren der Decke am Bau verbleiben. Die Befestigungswinkel werden üblicherweise auf der Deckenschalung mit Nägeln befestigt, danach wird die Abschalung ebenfalls mit Nägeln an den Befestigungswinkeln angebracht. Die Befestigungswinkel werden in der Betonmasse für die Decke einbetoniert und sind danach nicht mehr sichtbar.
Die bekannten Abschal- oder Befestigungswinkel sind aus Stahl oder Kunststoff hergestellt. Da auf dem Bau sehr kostenbewusst eingekauft wird und Stahlwinkel teurer sind als solche, die aus Kunststoff hergestellt werden, sind demzufolge verschiedene Ausführungen von Kunststoffwinkeln bekannt. Diese umfassen einen Basisschenkel, der in beabstandeter Lage zur Deckenabschalung zu liegen kommt und rechtwinklig dazu einen Haltewinkel, an welchem sogenannte Nagelschlaufen, d.h. kleine Distanzhalter, ausgebildet sind, welche zwischen dem Schalbrett und dem Halteschenkel einen Abstand gewährleisten. Durch die Nagelschlaufen werden die Nägel hindurchgeführt, mit denen das Schalbrett am Abstandhalter befestigt wird. Da auch Kunststoffwinkel eine gewisse minimale Steifigkeit aufweisen müssen, um die Kräfte der flüssigen Betonmasse aufnehmen zu können, ohne dass sich die Abschalplatte nach aussen neigt, müssen Vorkehrungen getroffen werden, welche eine hohe Steifigkeit gewährleisten. Einerseits ist es möglich, Kunststoffmaterialien zu verwenden, die diese Voraussetzungen erfüllen. Diese sind aber sehr teuer und daher von den Abnehmern nicht akzeptiert. Weiter ist es möglich, auf andere Weise die Festigkeit des Kunststoffwinkels zu erhöhen, auch wenn dieser aus sehr kostengünstigem Material besteht. Alle diese Massnahmen, mit Ausnahme von teuren Kunststoffprodukten, können die Anforderungen an die Festigkeit (Durchbiegung) bisher nicht erfüllen. Eine derartige Lösung ist beispielsweise aus der EP 1 672 141 A1 bekannt. Bei dieser bekannten Schrift, wie auch bei der US 5,788,875 schliesst der horizontal zu liegen kommende Basisschenkel an ein rechteckförmiges Rohr an. Im ersten Fall ist keine in das rechteckförmige Rohr hineinreichende Strebe als Verstärkung ausgebildet; im zweiten Fall wird die Seitenwand des aus Kunststoff bestehenden Rechteckrohrs teilweise in den Basisschenkel hineingezogen, was einen Mehrverbrauch an Kunststoff und damit Mehrkosten verursacht. Bei beiden Schriften sind keine seitlich an den Basis- und den Halteschenkel anliegende Versteifungselemente offenbart. Zudem liegen bei beiden Dokumenten die sogenannten Nadelschlaufen übereinander und sind nicht seitlich versetzt, sodass flüssiger Beton von oben nach unten zwischen der Schalung und dem Halteschenkel hindurch nach unten fliessen kann.Fixing brackets, also called Abschalwinkel, are used for attaching Abschalbrettern or lost formwork for attaching formwork, which remain after concreting the ceiling in the building. The mounting brackets are usually attached to the slab formwork with nails, then the shuttering is also attached with nails to the mounting brackets. The fixing brackets are embedded in the concrete mass for the ceiling and are then no longer visible.
The known Abschal- or mounting bracket are made of steel or plastic. Since the construction is purchased very cost-conscious and steel angles are more expensive than those made of plastic, therefore, various versions of plastic angles are known. These include a base leg, which in spaced to the Deckenabschalung comes to lie and at right angles to a bracket on which so-called nail loops, ie small spacers are formed, which ensure a distance between the board and the holding leg. Through the nail loops, the nails are passed, with which the board is attached to the spacer. Since plastic angles must also have a certain minimum rigidity in order to be able to absorb the forces of the liquid concrete mass without the shut-off plate tilting outwards, precautions must be taken to ensure high rigidity. On the one hand, it is possible to use plastic materials that meet these requirements. These are very expensive and therefore not accepted by the customers. Further, it is possible to increase the strength of the plastic angle in other ways, even if it consists of very inexpensive material. All these measures, with the exception of expensive plastic products, can not yet meet the requirements for strength (deflection). Such a solution is for example from the EP 1 672 141 A1 known. In this known font, as well as in the US 5,788,875 The horizontally lying base leg adjoins a rectangular tube. In the first case, no strut extending into the rectangular tube is designed as a reinforcement; in the second case, the side wall of the existing plastic rectangle tube is partially pulled into the base leg, which causes an increase in consumption of plastic and thus additional costs. In both writings, no stiffening elements resting laterally on the base and holding legs are disclosed. In addition, in both documents, the so-called needle loops are stacked on top of each other and are not offset laterally, so that liquid concrete from up down between the formwork and the holding leg can flow down.

Es ist daher eine Aufgabe der vorliegenden Erfindung, einen Befestigungswinkel zu schaffen, dessen Steifigkeit trotz Verwendung von kostengünstigem Kunststoff alle Anforderungen an die Festigkeit erfüllt.
Eine weitere Aufgabe der vorliegenden Erfindung besteht darin, den Befestigungswinkel derart auszugestalten, dass dessen Steifigkeit jeweils an die Anforderungen der jeweiligen Deckenkonstruktion am Bau angepasst werden kann. Eine weitere Aufgabe besteht darin, den Befestigungswinkel durch geeignete konstruktive Massnahmen leichter auszubilden, d.h. mit weniger Kunststoff herstellen zu können, um dessen Herstellungskosten zu senken, ohne die Steifigkeit zu vermindern.It is therefore an object of the present invention to provide a mounting bracket, the rigidity of which, despite the use of inexpensive plastic meets all strength requirements.
Another object of the present invention is to design the mounting bracket such that its rigidity can be adapted to the requirements of the respective ceiling construction. Another object is to make the mounting bracket easier by appropriate design measures, ie to be able to produce less plastic in order to reduce its manufacturing costs, without reducing the rigidity.

Gelöst werden diese Aufgaben durch einen Befestigungswinkel mit den Merkmalen der Patentansprüche 1 und 8. Vorteilhafte Ausgestaltungen des Befestigungswinkels sind in den abhängigen Ansprüchen umschrieben.These objects are achieved by a mounting bracket with the features of claims 1 and 8. Advantageous embodiments of the mounting bracket are described in the dependent claims.

Durch die neuartige Ausbildung der Fachwerkkonstruktion zwischen der oberen und unteren Deckplatte des Basiswinkels und der Verbindung zwischen dem Basiswinkel und/oder dem Haltewinkel kann die Biegesteifigkeit des Basisschenkels und des gesamten Winkels wesentlich erhöht werden. Mit einem oder zwei zusätzlichen Armierungs- und Versteifungselementen, die werkzeugfrei seitlich mit dem Befestigungswinkel verbunden werden können oder in den Befestigungswinkel eingespritzt sind, lässt sich die Biegesteifigkeit nach Wunsch des Handwerkers zusätzlich wesentlich erhöhen und an die jeweiligen Vorgaben anpassen. Die Steifigkeit übertrifft dann die Werte von teureren Ganzmetallwinkeln.Due to the novel design of the truss structure between the upper and lower cover plate of the base angle and the connection between the base angle and / or the bracket, the bending stiffness of the base leg and the entire angle can be significantly increased. With one or two additional reinforcing and stiffening elements that can be laterally connected without tools to the mounting bracket or injected into the mounting bracket, the flexural rigidity can be significantly increased according to the craftsman's desire and to the respective specifications to adjust. The stiffness then surpasses the values of more expensive full metal angles.

Die neuartige Ausbildung der Nagelschlaufen am Halteschenkel ermöglicht eine Einsparung von Kunststoff und begünstigt zudem ganz wesentlich das Fliessen des flüssigen Betons zwischen der Schalung und dem Befestigungswinkel. Damit kann dieser Zwischenraum mit Beton vollständig hinterfüllt werden. Dadurch wird die nach dem Ausschalen sichtbare Oberfläche des Deckenrands nicht nur optisch, sondern auch mechanisch einwandfrei und bei Belastung des Winkels wirkt dies dem Ausbrechen der Deckenstirne zwischen dem Winkel und der Oberfläche entgegen.The novel design of the nail loops on the holding leg allows a saving of plastic and also favors very much the flow of liquid concrete between the formwork and the mounting bracket. Thus, this gap can be completely backfilled with concrete. As a result, the visible after stripping surface of the ceiling edge not only visually, but also mechanically perfect and when the angle is applied, this counteracts the breaking of the ceiling forehead between the angle and the surface.

Anhand eines illustrierten Ausführungsbeispiels wird die Erfindung näher erläutert. Es zeigen:

Figur 1
einen Befestigungswinkel in perspektivischer Darstellung Versteifungswinkel,
Figur 2
eine perspektivische Darstellung des Befestigungswinkels von der anderen Seite mit einer zusätzlichen Versteifungsplatte,
Figur 3
eine perspektivische Ansicht des Befestigungswinkels von unten und
Figur 4
eine perspektivische Darstellung des Befestigungswinkels ohne Versteifungsplatte, jedoch mit zwei Verlängerungsaufsätzen auf dem Halteschenkel,
Figur 5
einen Vertikalschnitt durch eine Wand, eine Deckenschalung und einem auf der Deckenschalung aufgenagelten Befestigungswinkel.
Reference to an illustrated embodiment, the invention is explained in detail. Show it:
FIG. 1
a mounting bracket in perspective view stiffening angle,
FIG. 2
a perspective view of the mounting bracket from the other side with an additional stiffening plate,
FIG. 3
a perspective view of the mounting bracket from below and
FIG. 4
a perspective view of the mounting bracket without stiffening plate, but with two extension attachments on the support leg,
FIG. 5
a vertical section through a wall, a slab formwork and a nailed to the slab formwork angle bracket.

Der in Figur 1 mit Bezugszeichen 1 bezeichnete Befestigungs- oder Abschalwinkel, kurz Winkel 1 genannt, umfasst einen Basisschenkel 3 und einen Halteschenkel 5. Die beiden Schenkel 3, 5 sind derart miteinander verbunden, dass die Auflageflächen 7 am Basisschenkel in einem rechten Winkel zum Halteschenkel bzw. zu den Stirnflächen von am Halteschenkel 5 angebrachten Nagelschlaufen 9 stehen.
Der Basisschenkel 3 umfasst eine untere Deckplatte 11 und eine obere Deckplatte 13. An der unteren Deckplatte 11 sind Füsse 15 angeformt, welche die Auflagefläche 7 auf der Schalung bilden. Zwischen den beiden im Beispiel leicht konisch zueinander liegenden Deckplatten 11 und 13 ist ein Fachwerk ausgebildet, welches durch dachartig liegende Strebenpaare 17 und 19 sowie fakultativ zusätzliche vertikale Träger 21 gebildet wird. Die dachartig liegenden beiden Strebenpaare 17, 19 verlaufen entweder je parallel oder in einem sehr spitzen Winkel. Der Scheitel S des oberen Strebenpaares 17 ist mit der oberen Deckplatte 13 verbunden; die unteren Kanten des oberen Strebenpaars 17 sind mit der unteren Deckplatte 11 verbunden. Der Scheitel des unteren Strebenpaars 19 liegt beabstandet vom Scheitel des oberen Strebenpaars 17 und ist mit dem vertikalen Träger 21 verbunden.
Alternativ können sich die Scheitel beider Strebenpaare 17, 19 an der oberen Deckplatte 13 treffen und sind dort direkt mit der Deckplatte 13 verbunden. In der in Figur 1 dargestellten ersten Ausführung treffen sich die beiden Schenkel des oberen Strebenpaares 17 mit der oberen Deckplatte 13 an einem rohrförmigen Knoten 55.
In einer weiteren Ausführung der Erfindung können der oder die Streben 17, 19, welche von der oberen Deckplatte 13 zum Halteschenkel 5 führen, auch weggelassen oder durch ein andersartig aufgebautes Fachwerk ersetzt werden. Es verbleiben dann ein oder zwei Streben, welche direkt von der Deckplatte 13 oder leicht beabstandet von dieser, z.B. angebunden an den vertikalen Träger 21, in Richtung des freien Endes des Basisschenkels 3 verlaufen.
Das freie Ende des Basisschenkels 3 kann eine Verjüngung 4 aufweisen, auf welche ein Verlängerungselement, das in den Figuren nicht dargestellt ist, aufgesetzt werden kann. Am Verlängerungselement 4 ist auf dessen unteren Fläche ebenfalls ein Fuss 15 ausgebildet.The in FIG. 1 designated by reference numeral 1 attachment or Abschalwinkel, short angle called 1, comprises a base leg 3 and a holding leg 5. The two legs 3, 5 are connected to each other such that the bearing surfaces 7 on the base leg at a right angle to the holding leg or to the End faces of the holding leg 5 attached nail loops 9 are.
The base leg 3 comprises a lower cover plate 11 and an upper cover plate 13. At the lower cover plate 11 feet 15 are formed, which form the support surface 7 on the formwork. Between the two in the example slightly conical cover plates 11 and 13, a framework is formed, which is formed by roof-like strut pairs 17 and 19 and optionally additional vertical support 21. The roof-like two pairs of struts 17, 19 are either ever parallel or at a very acute angle. The apex S of the upper strut pair 17 is connected to the upper cover plate 13; the lower edges of the upper strut pair 17 are connected to the lower cover plate 11. The apex of the lower strut pair 19 is spaced from the apex of the upper strut pair 17 and is connected to the vertical support 21.
Alternatively, the vertexes of both strut pairs 17, 19 meet at the upper cover plate 13 and are connected there directly to the cover plate 13. In the in FIG. 1 illustrated first embodiment, the two legs of the upper strut pair 17 meet with the upper cover plate 13 at a tubular node 55th
In a further embodiment of the invention, the one or more struts 17, 19, which lead from the upper cover plate 13 to the holding leg 5, also omitted or replaced by a differently structured framework. There then remain one or two struts, which extend directly from the cover plate 13 or slightly spaced therefrom, for example tied to the vertical support 21, in the direction of the free end of the base leg 3.
The free end of the base leg 3 may have a taper 4, on which an extension element, which is not shown in the figures, can be placed. On the extension element 4, a foot 15 is also formed on the lower surface thereof.

Einer der Füsse 15 liegt vorzugsweise unterhalb der Scheitel der Strebenpaare 17, 19 bzw. falls nur eine zum freien Ende des Basisschenkels 3 verlaufende Strebe vorhanden ist, unterhalb deren oberen Anbindung an die obere Deckplatte 13.
Der Basisschenkel 3 erstreckt sich - im Gegensatz zu den bekannten Befestigungswinkeln - hinten vorzugsweise bis zur Aussenfläche 23 des Halteschenkels 5, an dem auch die Nagelschlaufen 9 ausgebildet sind. Der Verbindungsbereich zwischen Basisschenkel 3 und Halteschenkel 5 erfolgt durch wiederum dachartig angeordnete erste und zweite Hilfsstreben 25 und 27, wobei deren Scheitel an der Innenfläche 29 des Halteschenkels 5 angebunden ist. Der ganze vordere Teil des Basisschenkels 3 wird somit beim Auflage- oder Befestigungspunkt auf der Deckenschalung 57 aufgehängt (vergl. Figur 5).
Im Fachwerk am Basisschenkel 3 sind seitlich beispielsweise pilzförmige Zapfen 31 angeformt, welche durch kreuzweise liegende Einschnitte radial einwärts verformbar sind. Die Zapfen 31 können durch zylindrische Verdickungen an den Strebenpaaren 17 oder einem anderen Strebenpaar gebildet sein und überragen diese. Alternativ zu den Zapfen 31 können auch andersartig ausgebildete Rastelemente treten.
Die untere und die obere Deckplatte 11, 13 weisen in einer vorteilhaften Ausgestaltung eine grössere Breite b auf als die Breite der mindestens einen Strebe 17 und/oder 19 des Fachwerks. Diese Massnahme erlaubt es, zwischen die beiden Deckplatten 11, 13 spielfrei eine Versteifungsplatte oder einen Versteifungswinkel 33 aus Stahl, vorzugsweise aus hochfestem Stahl, Kunststoff oder einem andern Material, einzulegen. Am Versteifungswinkel 33 sind entsprechend der Anordnung der Zapfen 31 am Basisschenkel 3 Löcher angebracht, durch die die Zapfen oder Rastelemente 31 hindurchgeführt und nach vollständigem Anpressen des Versteifungswinkel 33 an die Streben 17, 19 einrasten. Es ergibt sich dadurch eine wesentliche Erhöhung der ohnehin vorhandenen hohen Steifigkeit des Basisschenkels 3. Analog dazu überragen die Aussenfläche 23 und die Innenfläche 29 des Halteschenkels 5 die Seitenflächen 35. Der dazwischen liegende Raum wird beim Aufklipsen eines oder zwei Versteifungswinkels 33 ausgefüllt. Auch dort liegt der Versteifungswinkel 33 demzufolge im Wesentlichen spielfrei gehalten an und wird durch ebenfalls vorhandene Zapfen 31 unlösbar gehalten. Die Rastmittel 31 sind an den beiden Seitenflächen versetzt angeordnet und in den Versteifungswinkeln jeweils versetzt je zwei Löcher ausgestanzt. Dadurch können die Winkel 1 für den Transport satt seitlich aneinandergelegt werden.One of the feet 15 is preferably below the apex of the pairs of struts 17, 19 or, if only one extending to the free end of the base leg 3 strut is present, below the upper connection to the upper cover plate thirteenth
The base leg 3 extends - in contrast to the known mounting brackets - back preferably to the outer surface 23 of the retaining leg 5, on which the nail loops 9 are formed. The connecting region between the base leg 3 and retaining leg 5 is effected by again roof-like arranged first and second auxiliary struts 25 and 27, wherein the apex of which is connected to the inner surface 29 of the retaining leg 5. The whole front part of the base leg 3 is thus suspended at the support or attachment point on the slab formwork 57 (see. FIG. 5 ).
In the truss on the base leg 3, for example, mushroom-shaped pins 31 are formed laterally, which are radially inwardly deformed by crosswise incisions. The pins 31 may be formed by cylindrical thickening of the pairs of struts 17 or another pair of struts and project beyond this. As an alternative to the pins 31, differently shaped locking elements may also occur.
The lower and the upper cover plate 11, 13 have, in an advantageous embodiment, a greater width b than the width of the at least one strut 17 and / or 19 of the truss. This measure allows between the two cover plates 11, 13 play a stiffening plate or a stiffening angle 33 made of steel, preferably made of high-strength steel, plastic or other material. At the stiffening angle 33 3 holes are provided according to the arrangement of the pins 31 on the base leg, passed through the pins or locking elements 31 and engage after complete pressing of the stiffening angle 33 to the struts 17, 19. This results in a substantial increase in the already existing high rigidity of the base leg 3. Similarly, the outer surface 23 and the inner surface 29 of the retaining leg 5 project beyond the side surfaces 35. The space between them is filled when clipping one or two stiffening angle 33. There, too, the stiffening angle 33 is therefore held substantially free of play and is held insoluble by also existing pin 31. The latching means 31 are arranged offset on the two side surfaces and offset staggered in the stiffening angles in each case two holes. As a result, the angle 1 can be packed together side by side for transportation.

Die Nagelschlaufen 9, im vorliegenden Beispiel gemäss Figur 5 fünf an der Zahl, liegen nicht wie im Stand der Technik paarweise und oft auch miteinander verbunden nebeneinander, sondern jeweils um die Hälfte der Abstände versetzt. Dies ermöglicht einen ungehinderten zick-zackförmigen Fluss des flüssigen Betons zwischen einem Schalbrett, an dem die Nagelschlaufen 9 anliegen und der Aussenfläche 23 des Halteschenkels 5. Dies ergibt eine glatte porenfreie Betonoberfläche im Bereich des sichtbaren Deckenrandes. Um den Betonfluss weiter zu begünstigen, liegen die rohrförmigen Abschnitte 37 der Nagelschlaufen 9, die über dreieck- oder trapezförmige Laschen 39 an der Aussenfläche 23 des Halteschenkels 5 angebunden sind, nicht rechtwinklig zur Längsausdehnung des Halteschenkels, sondern in einem Winkel von beispielsweise 30° bis 45° geneigt dazu. Der flüssige Beton kann deshalb ungehindert zick-zackartig nach unten fliessen. Dies bewirkt weiter ein besseres Einbetonieren des Winkels 1, eine homogenere Oberfläche und verhindert dadurch zusätzlich das Ausbrechen der Deckenstirne bei Belastung des Winkels 1.The nail loops 9, in the present example according to FIG. 5 five in number, are not as in the prior art in pairs and often also interconnected side by side, but each offset by half of the distances. This allows an unobstructed zig-zag flow of liquid concrete between a board on which rest the nail loops 9 and the Outer surface 23 of the retaining leg 5. This results in a smooth pore-free concrete surface in the area of the visible ceiling edge. In order to further favor the concrete flow, the tubular portions 37 of the nail loops 9, which are connected via triangular or trapezoidal tabs 39 on the outer surface 23 of the retaining leg 5, not perpendicular to the longitudinal extent of the retaining leg, but at an angle of for example 30 ° 45 ° inclined to it. The liquid concrete can therefore flow unhindered zigzag down. This causes a better Einbetonieren the angle 1, a more homogeneous surface and thereby additionally prevents the breaking out of the ceiling forehead under load of the angle. 1

Am unteren Ende der Aussenfläche 23 kann eine Finne 41 angeformt sein, deren Aussenkante 43 in der gemeinsamen Ebene der Stirnflächen 45 der Nagelschlaufen 9 liegt. Eine im Winkel zur Unterseite des Basisschenkel 3 verlaufende Perforation 47, die als Sollbruchlinie dient, ermöglicht es, ein dreieckiges Eckstück 49 von der Finne 41 abzulösen, z.B. abzubrechen. Dieses erlaubt es, eine Dreikantlatte einzulegen, um am fertigen Deckenrand unten eine Anfasung im entsprechenden Winkel zu erzeugen.At the lower end of the outer surface 23, a fin 41 may be formed, the outer edge 43 is in the common plane of the end faces 45 of the nail loops 9. A perforation 47 extending at an angle to the underside of the base leg 3, which serves as a predetermined breaking line, makes it possible to detach a triangular corner piece 49 from the fin 41, e.g. cancel. This makes it possible to insert a triangular lath to produce a chamfer at the corresponding ceiling angle at the bottom of the finished ceiling.

Das obere Ende des Halteschenkels 5 weist über einen Abschnitt einen geringeren Querschnitt auf, welcher das Aufschieben eines Verlängerungsaufsatzes 53 ermöglicht.
Dieser erlaubt das Aufsetzen von Klemm-Deckenrandabschalungs-Systemen, mit welchen eine Schalplatte 67 während des Giessens der Decke von aussen gehalten werden kann. Es kann auch ein Geländerpfosten aufgesetzt werden.The upper end of the retaining leg 5 has a smaller cross section over a portion, which is the Sliding an extension attachment 53 allows.
This allows the installation of clamping Deckenrandabschalungs-systems, with which a formwork panel 67 can be held during the casting of the ceiling from the outside. It can also be put on a railing post.

In der Figur 4 sind auf dem Haltschenkel 5 zwei Aufsätze 53 aufgesteckt, die zudem Nagelschlaufen 9 aufweisen, sodass auch im verlängerten Bereich des Halteschenkels 5 der gleiche Abstand zwischen dem Halteschenkel 5 und einer Schalplatte 67 gewährleistet ist.In the FIG. 4 are on the holding leg 5 two essays 53 attached, which also have nail loops 9, so that even in the extended region of the retaining leg 5, the same distance between the holding leg 5 and a formwork panel 67 is ensured.

Um auch einen oder allenfalls zwei Aufsätzen 53 auf das obere Ende des Halteschenkels 5 die gewünschte Festigkeit zukommen zu lassen, kann am Versteifungswinkel 33 der an den Halteschenkel 5 anzuliegen bestimmte Versteifungswinkel 33 verlängert sein, so dass dieser in den einen oder allenfalls zwei Aufsätze 53 hineinragt und damit deren Biegefestigkeit wesentlich erhöht.In order to give the desired strength to one or at most two attachments 53 on the upper end of the holding leg 5, the stiffening angle 33 can be extended at the stiffening angle 33 of the holding leg 5 so that it projects into one or at most two attachments 53 and thus significantly increases their flexural strength.

In der schematischen Darstellung gemäss Figur 5 ist der Befestigungswinkel 1 auf der Deckenschalung 57, die von einer Deckenstütze 59 getragen wird, befestigt. Die Befestigung erfolgt über Nägel 61, welche von oben durch den Basisschenkel 3 in die Schalung 57 getrieben worden sind. Wie aus der Figur 5 ersichtlich ist, liegen oft nicht alle Füsse 15 auf der Schalung 57, insbesondere nicht auf der Oberkante 63 einer Wand 65 auf, da letztere meistens nicht mit der Oberfläche der Schalung 57 fluchtet bzw. bei einer gegossenen Wand nicht eben ist. Der Fuss 15 unter dem Halteschenkel 5 und allenfalls auch der benachbarte am Basisschenkel 3 finden folglich keine Abstützung. In strichpunktierten Linien ist zur Veranschaulichung der Lage eine Deckenrand-Abschalplatte 67 angedeutet.
Aus der schematischen Darstellung in Figur 5 wird deutlich, wie die Kräfte innerhalb des Befestigungswinkels 1 verlaufen, wenn der Basisschenkel 3 nicht vollständig über seine gesamte Länge abgestützt wird. Insbesondere wird ersichtlich, dass die horizontalen Kräfte auf die Deckenrand-Abschalplatte 67, erzeugt durch den Druck des flüssigen Betons über der Schalung 57 der Befestigungswinkel auf Biegung (im Uhrzeigersinn) beanspruchen. Diese Beanspruchung wird durch den erfindungsgemässen Befestigungswinkel 1 optimal aufgenommen.In the schematic representation according to FIG. 5 is the mounting bracket 1 on the slab formwork 57, which is supported by a ceiling support 59, attached. The attachment via nails 61, which have been driven from above through the base leg 3 in the formwork 57. Like from the FIG. 5 It can be seen that they often lie not all feet 15 on the formwork 57, in particular not on the upper edge 63 of a wall 65, since the latter is usually not aligned with the surface of the formwork 57 or is not flat in a cast wall. The foot 15 under the retaining leg 5 and possibly also the adjacent base leg 3 therefore find no support. In dash-dotted lines a Deckenrand-Abschalplatte 67 is indicated to illustrate the situation.
From the schematic representation in FIG. 5 It is clear how the forces within the mounting bracket 1 run when the base leg 3 is not fully supported over its entire length. In particular, it will be seen that the horizontal forces on the ceiling edge peel plate 67, created by the pressure of the liquid concrete above the formwork 57, require the mounting angles to flex (clockwise). This stress is optimally absorbed by the inventive mounting bracket 1.

In den Figuren 2 und 3 sind auf der oberen Deckplatte 13 zum Beispiel zylindrische Vorsprünge 69 und an der unteren Deckplatte 11 rohrförmige Vorsprünge 71 oder ein Fuss 15 mit einer Bohrung 73 ausgebildet. Die Vorsprünge 69 und die rohrförmigen Vorsprünge 71 bzw. Bohrungen 73, ermöglichen das Stapeln der Befestigungswinkel 1 für die Lagerung und den Transport, ohne dass die Befestigungswinkel 1 in Schachteln oder andere Gebinde eingelegt werden müssen. Die Befestigungswinkel 1 können so auf kostengünstige Weise und mit geringstem Abfall durch Umreifungsmittel zusammengehalten transportiert werden.In the Figures 2 and 3 On the upper cover plate 13, for example, cylindrical projections 69 and on the lower cover plate 11 tubular projections 71 or a foot 15 with a bore 73 are formed. The projections 69 and the tubular projections 71 and bores 73, allow the stacking of the mounting bracket 1 for the Storage and transport without the need to place the fixing brackets 1 in boxes or other containers. The mounting bracket 1 can be transported in a cost effective manner and with minimal waste held together by strapping.

Claims (10)

  1. A fastening bracket (1) for slab edge formwork elements (67), comprising a base limb (3) for securing the latter onto a slab formwork (57), a retaining limb (5) arranged at right angles to the latter for securing a slab edge formwork plate (67), and nail loops (9) arranged on the retaining limb (5) for holding the formwork plate (67) at a distance, the base limb (3) having an upper and a lower cover plate (13, 11), between which a framework is formed,
    characterised in that
    the upper cover plate (13) and the lower cover plate (11) are connected to one another by at least one strut (17) such that the lower end of the strut (17) at least one strut (27) is attached to the lower cover plate (11) in the region of the free end of the base limb (3) and the upper end of the strut (17) is attached directly or indirectly to the upper cover plate (13) in the middle area of the base limb (3).
  2. The fastening bracket according to claim 1, characterised in that the struts (17, 19) forming the framework are arranged between the two cover plates (11, 13) of the base limb (3) in a roof-like manner and/or lying on top of one another.
  3. The fastening bracket according to either of claims 1 or 2, characterised in that the upper ends of the struts or strut pairs (17, 19) are connected to a web (21) which connects the lower and the upper cover surface (11, 13) and is at right angles to the lower cover surface (11).
  4. The fastening bracket according to any one of claims 1 to 3, characterised in that the struts or strut pairs (17, 19) meet on a line or at a tubular node (55).
  5. The fastening bracket according to any one of claims 1 to 4, characterised in that one of the feet (15) supporting the base limb (3) is arranged below the upper end of the struts (17, 19).
  6. The fastening bracket (1) for slab edge formwork elements according to any one of claims 1 to 5, characterised in that in the corner area connecting the base limb (3) to the retaining limb (5) an auxiliary strut (25) crossing the struts (17, 19) is formed.
  7. The fastening bracket (1) for slab edge formwork elements according to either of claims 1 or 2, characterised in that the framework continues beyond the base limb (3) below the retaining limb (5) and in that the lower end of the retaining limb (5) lies at the level of the upper cover plate (13) and is connected to the latter and/or in that the connecting area between the base limb (3) and the retaining limb (5) comprises first and second auxiliary struts arranged in a roof-like manner, the apex of which is attached to the inner surface (29) of the retaining limb (5).
  8. The fastening bracket (1) for slab edge formwork elements, comprising a base limb (3) for securing onto a slab formwork (57), a retaining limb (5) arranged at right angles thereto for securing a slab edge formwork plate (67), and nail loops (9) arranged on the retaining limb (5) for holding the slab edge formwork plate (67) at a distance, the base limb (5) having an upper and a lower cover plate (13, 11), between which a framework is formed,
    characterised in that
    at least on the base limb (3) and/or on the retaining limb (5) a reinforcing element (33) is arranged laterally, wherein, on the base limb (3), the reinforcing element (33) is inserted between the areas of the two cover plates (11, 13) projecting laterally beyond the framework and wherein the at least one reinforcing element (33) can be fitted without tools to and is held non-detachably on locking elements (31) on the fastening bracket (1).
  9. The fastening bracket according to claim 8, characterised in that the reinforcing element (33) comprises an L-shaped bracket made of steel, plastic or another material.
  10. The fastening bracket according to any one of claims 1 to 9, characterised in that means (69, 71, 73) for mutual stacking and locking during transport and storage are formed on the upper cover plate (13) and on the lower cover plate (11).
EP12708081.0A 2011-02-23 2012-02-23 Fastening bracket for slab edge formwork elements Active EP2678493B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15183345.6A EP2977526B1 (en) 2011-02-23 2012-02-23 Fastening bracket for ceiling edge formwork

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00315/11A CH704519A1 (en) 2011-02-23 2011-02-23 Mounting brackets for Deckenrandabschalungen.
PCT/CH2012/000046 WO2012113088A1 (en) 2011-02-23 2012-02-23 Fastening bracket for slab edge formwork elements

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP15183345.6A Division EP2977526B1 (en) 2011-02-23 2012-02-23 Fastening bracket for ceiling edge formwork
EP15183345.6A Division-Into EP2977526B1 (en) 2011-02-23 2012-02-23 Fastening bracket for ceiling edge formwork

Publications (2)

Publication Number Publication Date
EP2678493A1 EP2678493A1 (en) 2014-01-01
EP2678493B1 true EP2678493B1 (en) 2016-06-15

Family

ID=45814319

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15183345.6A Active EP2977526B1 (en) 2011-02-23 2012-02-23 Fastening bracket for ceiling edge formwork
EP12708081.0A Active EP2678493B1 (en) 2011-02-23 2012-02-23 Fastening bracket for slab edge formwork elements

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15183345.6A Active EP2977526B1 (en) 2011-02-23 2012-02-23 Fastening bracket for ceiling edge formwork

Country Status (3)

Country Link
EP (2) EP2977526B1 (en)
CH (1) CH704519A1 (en)
WO (1) WO2012113088A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707643A2 (en) 2013-02-20 2014-08-29 Pino Albanese Mounting brackets for Deckenrandabschalungen.
AT15629U1 (en) * 2016-11-02 2018-03-15 Harra Stefan FASTENING ANGLE FOR CEILING BORING
AT519309B1 (en) * 2016-11-02 2020-07-15 Harra Stefan FASTENING ANGLE FOR CEILING EDGE SHEETS
CH714812B1 (en) 2018-03-20 2022-02-28 Albanese Pino Extension element for a stop-end bracket.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1897635U (en) * 1964-06-05 1964-07-30 Peter Schaefges Formwork girders for balconies, cornices, oriels DGL.
US5788875A (en) * 1992-03-30 1998-08-04 Walser; Hans-Peter Device for a detachable securing of formwork boards
CH686689A5 (en) * 1993-01-14 1996-05-31 Hans Peter Walser Device for releasably retaining of formwork panels.
DE29503343U1 (en) * 1995-02-28 1995-05-18 Dausend, Hans-Werner, 42289 Wuppertal Bracket for ceiling edge formwork
DE29711269U1 (en) * 1997-06-27 1997-08-21 Max Frank GmbH & Co. KG, 94339 Leiblfing Fastening system for shuttering elements
EP1086792B1 (en) * 1999-09-24 2002-04-24 Georg Weidner Stackable fastening device for shuttering purpose
CH703670B1 (en) * 2004-12-17 2012-03-15 Pino Albanese Abschalplattenhalter.

Also Published As

Publication number Publication date
CH704519A1 (en) 2012-08-31
EP2678493A1 (en) 2014-01-01
EP2977526B1 (en) 2017-02-01
WO2012113088A1 (en) 2012-08-30
EP2977526A1 (en) 2016-01-27

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