EP0123979B1 - Anchoring channel for structural engineering - Google Patents

Anchoring channel for structural engineering Download PDF

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Publication number
EP0123979B1
EP0123979B1 EP84104051A EP84104051A EP0123979B1 EP 0123979 B1 EP0123979 B1 EP 0123979B1 EP 84104051 A EP84104051 A EP 84104051A EP 84104051 A EP84104051 A EP 84104051A EP 0123979 B1 EP0123979 B1 EP 0123979B1
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EP
European Patent Office
Prior art keywords
track
tie bar
insert
anchor rail
filling material
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Expired - Lifetime
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EP84104051A
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German (de)
French (fr)
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EP0123979A2 (en
EP0123979A3 (en
Inventor
Siegfried Fricker
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Leviat GmbH
Unistrut Europe PLC
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Unistrut Europe PLC
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Priority to AT84104051T priority Critical patent/ATE59869T1/en
Publication of EP0123979A2 publication Critical patent/EP0123979A2/en
Publication of EP0123979A3 publication Critical patent/EP0123979A3/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/388—Separate connecting elements
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4107—Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails

Definitions

  • the invention relates to an anchor rail for construction technology, which is embedded in a concrete part and the interior of which is completely filled with a filler which can be removed again after the concrete has set.
  • Anchor channels of this type have been known for decades (cf. DE-U-19 06 714). They are hollow profiles of essentially U-shaped cross section with angled inwards, for gripping behind fasteners, for example hook head, hammer head, eye bolts or the like, serving leg ends, which limit a longitudinal opening of the anchor rail.
  • fasteners for example hook head, hammer head, eye bolts or the like
  • the loads for example, intermediate ceilings are attached to the fastening means mentioned, the head of such fastening means resting with its underside on the angled leg ends as a supporting leg, while the shaft of the fastening means the longitudinal opening of the anchor rail, i.e. the anchor rail slot or passage between the leg ends reaches through.
  • this is usually attached to the formwork by means of nails or anchoring brackets, such as staples or the like, whereby, for example, nails are provided at intervals of 25 cm for a several meter long anchor rail, which are hammered in through pre-drilled openings in the back of the anchor rail and protrude through their cavity.
  • This cavity of the anchor channel is provided with a filling before concreting in, which fills the entire cavity completely and so tightly that no concrete or cement can penetrate. Penetrating cement, be it in the form of cement milk, or concrete would contaminate or crust the support legs or narrow the cavity.
  • the disadvantage here is that it is difficult to completely remove such a filling with the appropriate amount of work and time. This is usually done by hand after the concrete has set, using suitable hand tools such as chisels, chisels, screwdrivers to knock out the filling, to break it out and, in particular, to scrape it out in the undercut areas of the rail, with the inner cavity of the anchor rail also being removed to completely remove filling residues Compressed air is also blown out.
  • suitable hand tools such as chisels, chisels, screwdrivers to knock out the filling, to break it out and, in particular, to scrape it out in the undercut areas of the rail, with the inner cavity of the anchor rail also being removed to completely remove filling residues Compressed air is also blown out.
  • the invention is based on the object of designing an anchor rail of the generic type with a filler body which completely and tightly fills its hollow cross-section in such a way that this filler body can be torn out without being laboriously manipulated so that it can be dismembered Individual parts can be easily and quickly removed from the cast-in anchor channel without the aid of shredding tools.
  • the filling no longer has to be knocked out, broken out or scraped out in a cumbersome manner with the aid of suitable tools from the hollow profile of the rail.
  • a tear-resistant band-shaped insert is provided in the interior of the anchor rail, which is suitable for tearing the entire packing from the cavity of the rail when pulling out and destroying it, the entire filling can be completely removed, so to speak, when the insert is torn out.
  • the insert can be designed as a tear-resistant band which engages under the filler body and can be fastened to the inner underside of the anchor rail. It is essential, however, that the insert and filler are adapted to the cross-section of the respective anchor rail in such a way that when the insert is torn out, the filler is destroyed as much as possible in such a way that the fractions can be removed from the interior of the anchor rail without additional effort.
  • the insert is advantageously introduced parallel to the anchor rail. According to another characteristic, it consists of a tear-resistant band.
  • this tear-resistant tape can consist of a fabric reinforced with tear threads, it being advantageously arranged between the inner underside of the anchor rail and the filler. If, according to a further feature of the invention, the insert protrudes from the anchor rail at least at one point, it is achieved that such an end protruding over the anchor rail protrudes after concreting out of the concrete surface, so that it can be easily grasped and the surrounding thin concrete layer immediately Tear out together with the packing is removed.
  • the packing can have a longitudinal profile in the form of a groove or the like, so that tearing out the packing is made even easier.
  • the filler itself can consist, for example, of prefabricated rigid foam parts.
  • the design of the filler body 11 and insert 12 depends on the specific cross section of the anchor rail on the one hand and the simplest possible manufacture of this unit in the manufacture of the anchor rail.
  • the filler body can consist, for example, of prefabricated rigid foam parts, but it can also be made by foaming, e.g. can be created with PU foam.
  • the concrete realization or coordination of the properties of the packing and the insert are readily ascertainable for the person skilled in the art and therefore do not require any further explanation.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Chairs Characterized By Structure (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Finishing Walls (AREA)

Abstract

An anchoring track designed to be embedded in the surface of a structural member of concrete, the track having a C-shaped profile and a styrofoam filler body filling out the interior of the track to prevent the penetration of mortar into the track, the filler body being removable from the embedded track by means of a tear strip which is arranged between the back side of the filler body and the base wall of the anchoring track, in alignment with the slot of the anchoring track. The tear strip, when pulled through the slot of the track, tears out a central profile portion from the filler body to permit easy removal of the profile portions of the filler body remaining underneath the flange portions of the anchoring track.

Description

Die Erfindung betrifft eine Ankerschiene für die Bautechnik, die in einem Betonteil eingelassen und deren Innenraum vollständig von einem Füllkörper ausgefüllt ist, der nach dem Abbinden des Betons wieder entfernbar ist.The invention relates to an anchor rail for construction technology, which is embedded in a concrete part and the interior of which is completely filled with a filler which can be removed again after the concrete has set.

Ankerschienen dieser Art sind seit Jahrzehnten bekannt (vgl. DE-U-19 06 714). Sie sind Hohlprofile von im wesentlichen U-förmigem Querschnitt mit nach innen umgewinkelten, zum Hintergreifen von Befestigungsmitteln beispielsweise Hakenkopf-, Hammerkopf-, Ringschrauben oder dgl., dienenden Schenkelenden, welche eine Längsöffnung der Ankerschiene begrenzen. An solchen Ankerschienen werden die Lasten beispielsweise Zwischendecken an den beispielsweise genannten Befestigungsmitteln angebracht, wobei der Kopf solcher Befestigungsmittel mit seiner Unterseite auf den abgewinkelten Schenkelenden als Tragschenkel aufruht, während der Schaft des Befestigungsmittels die Längsöffnung der Ankerschiene, also den Ankerschienenschlitz oder -durchlaß zwischen den Schenkelenden durchgreift. Zum Einbetonieren der Ankerschiene wird diese meist mittels Nägeln oder Verankerungsbügeln, wie Krampen oder dgl., an der Schalung festgemacht, wobei beispielsweise Nägel bei einer mehrere Meter langen Ankerschiene etwa in Abständen von 25 cm vorgesehen sind, die durch vorgebohrte Öffnungen im Rücken der Ankerschiene eingeschlagen werden und ihren Hohlraum durchragen. Dieser Hohlraum der Ankerschiene wird vor dem Einbetonieren mit einer Füllung versehen, die den gesamten Hohlraum vollständig und derart dicht ausfüllt, daß kein Beton oder Zement eindringen kann. Eindringender Zement, sei es in Form von Zementmilch, oder Beton würde die Tragschenkel verschmutzen oder verkrusten bzw. den Hohlraum verengen. Solche Verkrustungen oder Verschmutzungen können dazu führen, daß die in der Ankerschiene unterzubringenden Befestigungsmittel, wie Traganker, Haken- oder Hammerkopfschrauben oder dgl., entweder gar nicht in den Hohlraum eingebracht bzw. in ihm nicht widerstandslos hin und her verschoben werden können. Auch kann ein gleichmäßiges unmittelbares Aufliegen der Unterseite des Kopfes solcher Befestigungsmittel auf den nach innen weisenden Oberflächen der abgewinkelten Schenkelenden der Schiene infolge anhaftenden Zementes oder dgl. verhindert werden, so daß eine genau lotrechte Lagerung des Schaftes des Befestigungsmittels in der Ankerschiene und damit eine lotrechte und gleichmäßige Aufnahme bzw. Verteilung der Lasten in der Ankerschiene verhindert ist. Die Füllung muß daher den Hohlraum der Ankerschiene vollständig ausfüllen und ihn zugleich gegen eindringenden Zement, Zementmilch oder Beton abdichten. Nachteilig ist hierbei, daß sich eine solche Füllung schwierig mit entsprechendem Arbeits- und Zeitaufwand wieder vollständig entfernen läßt. In der Regel geschieht dies nach dem Abbinden des Betons durch Handarbeit, indem mittels geeigneter Handwerkszeuge wieMeißel, Stecheisen, Schraubenzieher die Füllung herausgeschlagen, herausgebrochen und insbesondere in den hinterschnittenen Bereichen der Schiene herausgekratzt werden muß, wobei zur vollständigen Beseitigung von Füllresten der Innenhohlraum der Ankerschiene mit Preßluft zusätzlich ausgeblasen wird.Anchor channels of this type have been known for decades (cf. DE-U-19 06 714). They are hollow profiles of essentially U-shaped cross section with angled inwards, for gripping behind fasteners, for example hook head, hammer head, eye bolts or the like, serving leg ends, which limit a longitudinal opening of the anchor rail. On such anchor channels, the loads, for example, intermediate ceilings are attached to the fastening means mentioned, the head of such fastening means resting with its underside on the angled leg ends as a supporting leg, while the shaft of the fastening means the longitudinal opening of the anchor rail, i.e. the anchor rail slot or passage between the leg ends reaches through. For concreting in the anchor rail, this is usually attached to the formwork by means of nails or anchoring brackets, such as staples or the like, whereby, for example, nails are provided at intervals of 25 cm for a several meter long anchor rail, which are hammered in through pre-drilled openings in the back of the anchor rail and protrude through their cavity. This cavity of the anchor channel is provided with a filling before concreting in, which fills the entire cavity completely and so tightly that no concrete or cement can penetrate. Penetrating cement, be it in the form of cement milk, or concrete would contaminate or crust the support legs or narrow the cavity. Such incrustations or soiling can lead to the fact that the fastening means to be accommodated in the anchor rail, such as support anchors, hook or hammer head screws or the like, either cannot be inserted into the cavity at all or cannot be moved back and forth in it without resistance. Also, a uniform, direct contact of the underside of the head of such fasteners on the inwardly facing surfaces of the angled leg ends of the rail due to adhesive cement or the like can be prevented, so that a precisely perpendicular mounting of the shaft of the fastener in the anchor rail and thus a perpendicular and uniform absorption or distribution of the loads in the anchor channel is prevented. The filling must therefore completely fill the cavity of the anchor channel and at the same time seal it against penetrating cement, cement milk or concrete. The disadvantage here is that it is difficult to completely remove such a filling with the appropriate amount of work and time. This is usually done by hand after the concrete has set, using suitable hand tools such as chisels, chisels, screwdrivers to knock out the filling, to break it out and, in particular, to scrape it out in the undercut areas of the rail, with the inner cavity of the anchor rail also being removed to completely remove filling residues Compressed air is also blown out.

Aus DE-U-19 06 714 ist es bekannt, zur Vereinfachung dieser Arbeiten die Ankerschienenfüllung aus mehreren Teilen zu bilden, die durch die Längsöffnung der Ankerhohlschiene eingeschoben werden oder sie aus mehreren Teilen zu bilden, wobei zwei Teile der Füllung in die beiden seitlichen, durch die abgewinkelten Schenkelenden sich ergebenden Hohlprofilkammern, also die hinterschnittenen Kammerteile der Ankerschiene eingefügt werden und zwischen diesen ein dritter Füllstreifen eingefügt wird, der den mittleren Öffnungsquerschnitt der Ankerschiene zwischen den Schenkelenden abschließt. Hierdurch sollte erreicht werden, daß trotz der Bildung der Einlage aus mehreren Teilen ein vollständiges und dichtes Ausfüllen der Ankerhohlschiene möglich ist. Solche mehrteiligen Füllungen haben sich jedoch nicht durchgesetzt, hauptsächlich weil ein vollständig dichter Abschluß des Innenhohlraumes der Ankerschiene wegen der fertigungsbedingten Toleranzen bei der Herstellung der Ankerschiene als auch der Füllstreifen nicht möglich ist, und zum anderen weil auch die Heraustrennung eines Füllstreifens, der aus drei einzelnen Längsstreifen besteht, nur mit Schwierigkeiten möglich ist, und schließlich deshalb, weil der Kostenaufwand für die Herstellung solcher genau einpaßbarer Füllstreifen sehr hoch ist.From DE-U-19 06 714 it is known to simplify this work to form the anchor rail filling from several parts which are inserted through the longitudinal opening of the hollow anchor rail or to form it from several parts, two parts of the filling in the two lateral, through the angled leg ends of the resulting hollow profile chambers, that is to say the undercut chamber parts of the anchor rail, and a third filler strip is inserted between them, which closes the central opening cross section of the anchor rail between the leg ends. This should ensure that despite the formation of the insert from several parts, a complete and tight filling of the hollow anchor rail is possible. Such multi-part fillings have not become established, mainly because a completely tight seal of the inner cavity of the anchor rail is not possible because of the manufacturing-related tolerances in the manufacture of the anchor rail and the filler strips, and also because the separation of a filler strip from three individual ones Vertical stripes exist, is only possible with difficulty, and finally because the cost of producing such precisely adjustable filler strips is very high.

Aus DE-U-17 84 846 ist es andererseits bekannt, bei Einputz-Vorhangschienen einen Füllstreifen aus elastischem Material zu verwenden, der zwischen zwei seitliche Innenflansche, die den Laufschlitz für die Gleiter begrenzen, eingeklemmt wird. Er dient dazu, die Lauf- bzw. Führungsstege auf der Innenseite der Seitenflansche der im übrigen U-förmigen Vorhangschiene während des Einputzvorganges zu justieren, damit diese einen über die Länge der Vorhangschiene genauen Abstand voneinander haben. Derartige Füllstreifen erfordern eine verhältnismäßig genaue Herstellung, wenn sie eine gerade und planparallele Linienführung der Flansche der Vorhangschiene gewährleisten sollen und verteuern infolge der notwendigen Genauigkeit ihrer Abmessungen den Einbau solcher Verankerungsschienen. Sie können aus Preßpappe, Kunststoff, Gummi, Holz oder dgl. bestehen und auf ihrer im Inneren der Vorhangschiene liegenden Deckfläche mit einem Klebestreifen versehen sein, derart, daß sich der elastische verhältnismäßig weiche Füllstreifen mittels eines solchen Zugstreifens leicht aus der eingeputzten Vorhangschiene ohne Beschädigung aus seiner eingeklemmten Lage wieder herausziehen läßt und so für den gleichen Zweck wiederholt verwendet werden kann. Dabei kann als Zugstreifen ein einseitig mit Dauerklebstoff beschichtetes handelsübliches Band dienen, wie es als "Tesa-Band" bekannt ist. Da dieser bekannte Füllstreifen lediglich zur Justierung der Seitenwandungen, also zur genauen Linienführung des Laufschlitzes dient, füllt er lediglich den Laufschlitz, nicht aber den gesamten Hohlraum der Vorhangschiene vollständig aus. Er ist ferner nicht dem statischen Druck einer Betonsäule einer Ankerschiene ausgesetzt, so daß das Problem, das Eindringen von Beton oder Betonmilch in das Innere des Hohlprofiles zu verhindern und einen dichten Abschluß des Hohlraumes der ganzen Vorhangschiene zu schaffen, nicht besteht.From DE-U-17 84 846 it is known, on the other hand, to use a filler strip made of elastic material for plaster curtain rails, which is clamped between two lateral inner flanges that limit the slot for the slider. It serves to adjust the runways or guide bars on the inside of the side flanges of the otherwise U-shaped curtain rail during the plastering process so that they are at a precise distance from one another over the length of the curtain rail. Filling strips of this type require a relatively precise manufacture if they are to ensure straight and plane-parallel lines of the flanges of the curtain rail and, due to the necessary accuracy of their dimensions, make the installation of such anchoring rails more expensive. They can be made of pressed cardboard, plastic, rubber, wood or the like and be provided with an adhesive strip on their top surface lying inside the curtain rail such that the elastic, relatively soft filler strip can easily be removed from the plastered curtain rail without damage by means of such a pull strip its pinched position can be pulled out again and can be used repeatedly for the same purpose. A commercial tape coated on one side with permanent adhesive can serve as the pulling strip, as it is known as the "Tesa Band". Since this known filler strip is used only for adjusting the side walls, that is to say for the precise alignment of the running slot, it only fills the running slot completely, but not the entire cavity of the curtain rail. He is also not exposed to the static pressure of a concrete column of an anchor rail, so that the problem of preventing the penetration of concrete or concrete milk into the interior of the hollow profile and creating a tight seal of the cavity of the entire curtain rail does not exist.

Ausgehend von dem eingangs erwähnten Stand der Technik liegt der Erfindung demgegenüber die Aufgabe zugrunde, eine Ankerschiene der gattungsgemäßen Art mit einem ihren Hohlquerschnitt vollständig und dicht ausfüllenden Füllkörper so auszubilden, daß dieser Füllkörper ohne umständliches Manipulieren von Hand so unter Zerstückelung herausgerissen werden kann, daß seine Einzelteile leicht und schnell sowie ohne Zuhilfenahme von Zerkleinerungswerkzeugen aus der einbetonierten Ankerschiene entfernt werden können.On the basis of the prior art mentioned at the outset, the invention is based on the object of designing an anchor rail of the generic type with a filler body which completely and tightly fills its hollow cross-section in such a way that this filler body can be torn out without being laboriously manipulated so that it can be dismembered Individual parts can be easily and quickly removed from the cast-in anchor channel without the aid of shredding tools.

Diese Aufgabe wird bei einer Ankerschiene für die Bautechnik mit den Merkmalen des Gattungsbegriffes durch die Merkmale des Kennzeichens gelöst.This object is achieved in the case of an anchor rail for construction engineering with the features of the generic term by the features of the indicator.

Durch die Erfindung wird erreicht, daß die Füllung nicht mehr in umständlicher Weise unter Zuhilfenahme geeigneter Werkzeuge aus dem Hohlprofil der Schiene herausgeschlagen, herausgebrochen oder herausgekratzt werden muß. Dadurch, daß im Innenraum der Ankerschiene eine reißfeste bandförmige Einlage vorgesehen ist, die geeignet ist, den ganzen Füllkörper aus dem Hohlraum der Schiene beim Herausziehen loszureißen und ihn dabei zu zerstören, kann die ganze Füllung sozusagen beim Herausreißen der Einlage vollständig entfernt werden.It is achieved by the invention that the filling no longer has to be knocked out, broken out or scraped out in a cumbersome manner with the aid of suitable tools from the hollow profile of the rail. Characterized in that a tear-resistant band-shaped insert is provided in the interior of the anchor rail, which is suitable for tearing the entire packing from the cavity of the rail when pulling out and destroying it, the entire filling can be completely removed, so to speak, when the insert is torn out.

Für die konstruktive Ausgestaltung des Zusammenwirkens zwischen Füllkörper einerseits und Einlage andererseits gibt es verschiedene Möglichkeiten, so kann beispielsweise die Einlage als reißfestes Band ausgestaltet sein, das den Füllkörper untergreift und an der inneren Unterseite der Ankerschiene befestigt sein kann. Wesentlich ist jedoch, daß Einlage und Füllkörper so auf den Querschnitt der jeweiligen Ankerschiene angepaßt sind, daß beim Herausreißen der Einlage der Füllkörper möglichst derart zerstört wird, daß die Bruchteile ohne zusätzliche Anstrengung aus dem Innenraum der Ankerschiene entfernbar sind. Die Einlage ist vorteilhaft parallel zur Ankerschiene eingebracht. Sie besteht nach einem weiteren Merkmal aus einem reißfesten Band. Dieses reißfeste Band kann in Weiterbildung der Erfindung aus einem mit Reißfäden verstärkten Gewebe bestehen, wobei es vorteilhaft zwischen der inneren Unterseite der Ankerschiene und dem Füllkörper angeordnet ist. Wenn nach einem weiteren Merkmal der Erfindung die Einlage zumindest an einer Stelle aus der Ankerschiene herausragt, wird erreicht, daß ein solches über die Ankerschiene vorstehendes Ende nachdem Einbetonieren aus der Betonoberfläche hervorsteht, so daß es leicht ergriffen werden kann und gleich die umgebende dünne Betonschicht beim Herausreißen zusammen mit dem Füllkörper entfernt wird.There are various possibilities for the constructive design of the interaction between the filler body on the one hand and the insert on the other hand, for example the insert can be designed as a tear-resistant band which engages under the filler body and can be fastened to the inner underside of the anchor rail. It is essential, however, that the insert and filler are adapted to the cross-section of the respective anchor rail in such a way that when the insert is torn out, the filler is destroyed as much as possible in such a way that the fractions can be removed from the interior of the anchor rail without additional effort. The insert is advantageously introduced parallel to the anchor rail. According to another characteristic, it consists of a tear-resistant band. In a further development of the invention, this tear-resistant tape can consist of a fabric reinforced with tear threads, it being advantageously arranged between the inner underside of the anchor rail and the filler. If, according to a further feature of the invention, the insert protrudes from the anchor rail at least at one point, it is achieved that such an end protruding over the anchor rail protrudes after concreting out of the concrete surface, so that it can be easily grasped and the surrounding thin concrete layer immediately Tear out together with the packing is removed.

Bei einer Weiterbildung der Erfindung kann der Füllkörper eine Längsprofilierung in Form einer Nutrille oder dgl. haben, so daß das Herausreißen des Füllkörpers noch weiter erleichtert wird. Der Füllkörper selbst kann beispielsweise aus vorgefertigten Hartschaumteilen bestehen.In a further development of the invention, the packing can have a longitudinal profile in the form of a groove or the like, so that tearing out the packing is made even easier. The filler itself can consist, for example, of prefabricated rigid foam parts.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung nachstehend erläutert:

  • In ein Betonteil 30 ist eine Ankerschiene 10 mit einem Füllkörper 11 in ihrem Innenraum eingebettet. Zwischen dem Füllkörper 11 und der inneren Unterseite der Ankerschiene 10 befindet sich eine Einlage 12, die im dargestellten Ausführungsbeispiel aus einem reißfesten Band besteht, wobei das bandförmige Gewebe mit Reißfäden verstärkt ist. An beiden Enden steht die Einlage 12 so weit über das jeweilige Ende der Ankerschiene 10 über, daß nach dem Umgießen der Ankerschiene mit Beton ein ausreichendes Stück aus der Betonebene herausragt. Durch Ziehen in Pfeilrichtung an dem herausstehenden Ende der Einlage 12 wird der Füllkörper 11 vollständig aus seiner Haftung an den Innenflächen der hohlen Ankerschiene und zwar insbesondere auch im Bereich der hinterschnittenen Hohlräume der Ankerschiene losgelöst und unter Zerstörung herausgerissen, so daß ohne zusätzlichen Arbeitsaufwand und Kraftanstrengung und ohne Zuhilfenahme weiterer Werkzeuge die Füllung aus dem Innenraum der Ankerschiene 10 entfernt werden kann.
An embodiment of the invention is explained below with reference to the drawing:
  • An anchor rail 10 with a filler 11 is embedded in its interior in a concrete part 30. Between the filler 11 and the inner underside of the anchor rail 10 there is an insert 12 which, in the exemplary embodiment shown, consists of a tear-resistant band, the band-shaped fabric being reinforced with tear threads. At both ends, the insert 12 projects so far beyond the respective end of the anchor rail 10 that a sufficient piece protrudes from the concrete plane after the concrete has been cast around the anchor rail. By pulling in the direction of the arrow at the protruding end of the insert 12, the filler 11 is completely released from its adhesion to the inner surfaces of the hollow anchor rail and in particular in the region of the undercut cavities of the anchor rail and torn out with destruction, so that without additional work and effort and the filling can be removed from the interior of the anchor rail 10 without the aid of further tools.

Die Ausgestaltung von Füllkörper 11 und Einlage 12 hängt vom konkreten Querschnitt der Ankerschiene einerseits und einer möglichst einfachen Fertigung dieser Einheit bei der Herstellung der Ankerschiene ab. Hierbei ist es auch möglich, beispielsweise bei verhältnismäßig kleinem Querschnitt der Ankerschiene eine faden-oder schnurförmige Einlage 12 in das Innere eines Füllkörpers 11 bereits einzubetten, ggf. den Füllkörper auch noch mit Profilierungen in Form von Nuten oder Rillen zu versehen, so daß beim Herausreißen der Einlage 12 eine für die vollständige Entfernung des Füllkörpers erforderliche Zerstörung erfolgt, so daß seine Teile ohne zusätzliche Werkzeuge aus der Ankerschiene 10 entnehmbar sind. Der Füllkörper kann beispielsweise aus vorgefertigten Hartschaumteilen bestehen, er kann aber auch durch Anschäumen, z.B. mit PU-Schaum erzeugt werden. Die konkrete Realisierung bzw. Abstimmung der Eigenschaften des Füllkörpers und der Einlage sind für den Fachmann ohne weiteres ermittelbar und bedürfen somit nicht näherer Erläuterungen.The design of the filler body 11 and insert 12 depends on the specific cross section of the anchor rail on the one hand and the simplest possible manufacture of this unit in the manufacture of the anchor rail. Here it is also possible, for example with a relatively small cross-section of the anchor rail, to already embed a thread-like or cord-shaped insert 12 into the interior of a filler body 11, if necessary also to provide the filler body with profiles in the form of grooves or grooves, so that when torn out the insert 12 is destroyed for the complete removal of the packing, so that its parts can be removed from the anchor rail 10 without additional tools. The filler body can consist, for example, of prefabricated rigid foam parts, but it can also be made by foaming, e.g. can be created with PU foam. The concrete realization or coordination of the properties of the packing and the insert are readily ascertainable for the person skilled in the art and therefore do not require any further explanation.

Claims (8)

1. Tie bar for structural engineering, which is let into a concrete part and the inside of which is filled with filling material, which can be removed again after the concrete has set, characterized by a non-tear strip-like insert, which is located in the inside of the tie bar and projects beyond the latter at least at one point, as well as by filling material which can be broken up by tearing out the insert.
2. Tie bar according to Claim 1, characterized in that the insert (12) is a non-tear strip.
3. Tie bar according to Claim 1 or 2, characterized in that the non-tear strip (12) and the filling material (11) are adapted to the cross section of the tie bar 10 so that when the insert (12) is torn out, the filling material (11) is broken into fragments.
4. Tie bar according to one of Claims 1 to 3, characterized in that the strip (12) consists of a textile fabric reinforced with non-tearing threads.
5. Tie bar according to one of Claims 1 to 4, characterized in that the strip (12) is provided between the inner underside of the tie bar (10) and the filling material (11).
6. Tie bar according to one of Claims 1 to 5, characterized in that the projecting end of the tearing strip (12) projects from the concrete surface after concreting-in.
7. Tie bar according to one of Claims 1 to 6, characterized in that the filling material (11) has a longitudinal profile in the form of a groove, channel or the like.
8. Tie bar according to one of Claims 1 to 7, characterized in that the filling material (11) consists of hard foam.
EP84104051A 1983-04-29 1984-04-11 Anchoring channel for structural engineering Expired - Lifetime EP0123979B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104051T ATE59869T1 (en) 1983-04-29 1984-04-11 ANCHOR RAIL FOR BUILDING TECHNOLOGY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3315632A DE3315632C2 (en) 1983-04-29 1983-04-29 Anchor rail for structural engineering
DE3315632 1983-04-29

Publications (3)

Publication Number Publication Date
EP0123979A2 EP0123979A2 (en) 1984-11-07
EP0123979A3 EP0123979A3 (en) 1986-11-05
EP0123979B1 true EP0123979B1 (en) 1991-01-09

Family

ID=6197721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104051A Expired - Lifetime EP0123979B1 (en) 1983-04-29 1984-04-11 Anchoring channel for structural engineering

Country Status (7)

Country Link
US (1) US4532740A (en)
EP (1) EP0123979B1 (en)
JP (1) JPS59206541A (en)
KR (1) KR930001139B1 (en)
AT (1) ATE59869T1 (en)
CA (1) CA1220954A (en)
DE (2) DE3315632C2 (en)

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DE3315632C2 (en) * 1983-04-29 1986-05-07 Siegfried 7135 Wiernsheim Fricker Anchor rail for structural engineering
GB8808808D0 (en) * 1988-04-14 1988-05-18 Vantrunk Eng Ltd Insert for channel section member
DE3909776A1 (en) * 1989-03-22 1990-09-27 Deutsche Kahneisen Gmbh West Process for foam-filling an anchor rail for building purposes, and anchor rail produced by the process
DE8910744U1 (en) * 1989-09-08 1991-01-17 Schmidt, René P., Oberweningen Sealing device for concrete joints
GB9009375D0 (en) * 1990-04-26 1990-06-20 Wincro Metal Ind Ltd Apparatus for use with cast-in channels for facade support and restraint apparatus
US5890340A (en) * 1996-08-29 1999-04-06 Kafarowski; Zygmunt Grant Concrete insert for attaching wall panels to building structures
US7654057B2 (en) * 2005-08-08 2010-02-02 Sergio Zambelli Anchoring insert for embedding in a concrete component and concrete component provided therewith
DE102009045715A1 (en) 2009-10-15 2011-04-21 Hilti Aktiengesellschaft Castable anchor rail
DE202010010508U1 (en) 2010-07-21 2010-10-14 Hilti Aktiengesellschaft Anchor rail with drawstring
DE102010031636B4 (en) * 2010-07-21 2012-02-23 Hilti Aktiengesellschaft Anchor rail with drawstring
DE102010041904A1 (en) 2010-10-04 2012-04-05 Hilti Aktiengesellschaft Anchor rail with drawstring
US9976674B2 (en) 2016-05-13 2018-05-22 Thomas & Betts International Llc Concrete insert channel assembly
ES2921260T3 (en) * 2017-05-08 2022-08-22 Leviat GmbH Fixing rail and concrete component with a fixing rail
US10883265B2 (en) 2017-05-31 2021-01-05 Meadow Burke, Llc Connector for precast concrete structures
US11492797B2 (en) * 2020-03-05 2022-11-08 Meadow Burke, Llc Connector for precast concrete structures
CN112962794B (en) * 2021-02-26 2022-07-12 上海弈睿轨道交通工程技术有限公司 Channel and manufacturing method thereof
DE102021127340A1 (en) 2021-10-21 2023-04-27 Fischerwerke Gmbh & Co. Kg Anchor channel with a filling element and method for removing the filling element

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Also Published As

Publication number Publication date
KR840009125A (en) 1984-12-24
US4532740A (en) 1985-08-06
EP0123979A2 (en) 1984-11-07
KR930001139B1 (en) 1993-02-18
ATE59869T1 (en) 1991-01-15
DE3483891D1 (en) 1991-02-14
CA1220954A (en) 1987-04-28
JPS59206541A (en) 1984-11-22
DE3315632C2 (en) 1986-05-07
JPH055012B2 (en) 1993-01-21
EP0123979A3 (en) 1986-11-05
DE3315632A1 (en) 1984-11-08

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