EP0609690B1 - Construction element for the thermal insulation of buildings - Google Patents

Construction element for the thermal insulation of buildings Download PDF

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Publication number
EP0609690B1
EP0609690B1 EP94100633A EP94100633A EP0609690B1 EP 0609690 B1 EP0609690 B1 EP 0609690B1 EP 94100633 A EP94100633 A EP 94100633A EP 94100633 A EP94100633 A EP 94100633A EP 0609690 B1 EP0609690 B1 EP 0609690B1
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Prior art keywords
transverse
insulating body
element according
bars
region
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EP94100633A
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German (de)
French (fr)
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EP0609690A1 (en
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Harald Krüger
Rolf Hirn
Mario Schnepf
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Schoeck Bauteile GmbH
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Schoeck Bauteile GmbH
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/003Balconies; Decks
    • E04B1/0038Anchoring devices specially adapted therefor with means for preventing cold bridging

Definitions

  • the invention relates to a component for thermal insulation between two components to be concreted, in particular between a building and a cantilevered outer part, consisting of an insulating body to be laid between them with integrated metallic tensile, compressive and transverse force rods which extend transversely to the insulating body and through it in the case of the tensile and transverse force rods protrude on both sides into the components to be concreted, whereas the pressure rods are aligned at both ends with the sides of the insulating body and the transverse force rods run obliquely from top to bottom through the insulating body from the building side and then in the area of the pressure zone protrude towards the cantilevered outer part to be concreted.
  • each insulating body is equipped with several horizontally continuous tension and compression rods and with diagonally installed shear force rods, the number of reinforcing bars depends on the length of the insulating body and on the forces to be transmitted between the subsequent concrete parts. While the tensile and transverse force rods must protrude from the insulating body so that a sufficient overlap with the connecting reinforcement of the components adjoining on both sides is ensured, the compression rods can close with the outer sides of the insulating body.
  • the object of the present invention is to improve the component described at the outset by cost-effective measures in such a way that the risk of flaking at the joint of the pressure rods with the adjacent concrete components is reliably eliminated.
  • transverse force bars arranged in the vicinity of the pressure bars are bent downward in the area of the building part to be concreted and, crossing the neutral zone, enter the pressure zone of the building part by further turning and then run back in the direction of the insulating body, whereby its lowest area is below that of the pressure rods.
  • the invention is therefore based on the basic idea of giving the shear bar, which previously only ran in the tensile zone of the building part, a further function by bending it down and back to the insulating body so that it forms a concrete reinforcement in the pressure area of the pressure bar .
  • the splitting tensile forces introduced into the concrete by the compression rods are absorbed by the bent region of the transverse force rod and the feared breaking out at the joint is excluded.
  • the solution according to the invention is characterized by low costs, because no additional parts are required, but only the already existing transverse force bars need to be shaped and laid differently.
  • the shear bars in the area of the part of the building to be concreted expediently have approximately the shape of a 3/4 oval. In terms of manufacturing technology, it is most advantageous to bend the bars into a closed or almost closed circular ring shape.
  • the bent end of the shear force rod can run a bit into the insulating body, so that it does not get caught with on-site reinforcement bars or prevent accidental bending.
  • it can be welded to the diagonal central section of the transverse force rod.
  • the transverse force rod In the opposite area of the transverse force rod, that is to say in the region of the projecting component, the transverse force rod has previously been running in the vicinity of the pressure rod, so that the risk of breakout is lower here. Nevertheless, for safety reasons it is also recommended to lower the shear force rod so that it runs below the level of the pressure rod and causes a more effective strengthening of the pressure range in the concrete. It is particularly advantageous if the transverse force rod is then bent upwards out of the pressure zone and runs at least into the neutral zone of the projecting concrete component, it also being possible for it to be hook-shaped at its end.
  • the transverse force rod may also be expedient to allow the transverse force rod to run in mirror image as on the opposite side, that is to say that it comes from the pressure zone and is bent upwards and, crossing at least the neutral zone, runs back towards the insulating body by at least a further bend and there with is connected to the opposite end or to the central region of the transverse force rod.
  • the shear force rod then has approximately the shape of a horizontal figure eight and represents a self-contained system for shear force absorption. This not only gives the pressure range in the concrete a strengthening on both sides with the possibility of transferring positive and negative shear forces.
  • the transverse force bars run at a lower level than before in their lower region and, as a result, their concrete coverage is also significantly less. It is advisable to make the shear bars from stainless steel throughout so that the inevitable oxygen diffusion cannot cause corrosion. In this case, the concrete cover can decrease to zero.
  • the pressure rods often have a cross-sectional widening at their ends in order to reduce the Hertzian pressure occurring at the joint.
  • bell-like pressure pieces are used which are open to the outside and are flush with the insulating body at their edge.
  • the transverse force rods should be pulled down so that they run at least in the lower area of these bell-like pressure pieces or even below.
  • the component consists of a substantially rectangular insulating body 1, which on the construction site between the concrete slabs to be concreted is arranged. It has a series of tension rods 2 in its upper region and a series of compression rods 3 in its lower region. While the tension rods protrude far on both sides, the pressure rods are flush with the outside of the insulating body via terminal caps 3a which are open to the outside and which face the components to be concreted.
  • the insulating body 1 carries a series of shear bars 4, which serve in the usual way to absorb the vertical weight of the projecting outer part. They therefore come from the building side A approximately at a medium height into the insulating body 1, then run obliquely downward and emerge again from the insulating body in the lower region on the side facing the projecting outer part B.
  • FIG. 1 It can be clearly seen in FIG. 1 that the vertical tensile stresses which are triggered by the pressure rod 3 on the building side and which have occasionally led to flaking on the end face of the building-side concrete slab are absorbed by the transverse force rod.
  • the shear bars are, of course, for this purpose 4 always arranged in the immediate vicinity of the pressure rods 3, as is clear from FIGS. 2 and 3.
  • the insulating body In the exit area of the transverse force rods 4, the insulating body has cutouts 1 a of approximately 1 cm depth. As a result, the shear bar is reliably enclosed in the concrete in the bending area.
  • the transverse force bars On the side facing the projecting outer part B, the transverse force bars always emerge from the insulating body 1 in the lower region and there form the desired support of the concrete against the mentioned chipping forces. It is only necessary to ensure that the transverse force rod is arranged here, just like on the other side of the insulating body, somewhat lower than usual so that it falls below the level of the pressure rods. The transverse force rod is then expediently bent upward and runs out in a hook-like manner, as is illustrated by section 4c.
  • Figure 4 shows an alternative design, in which the transverse force rod 4 on the side of the projecting part B is bent similar to that on the side of the building A.
  • the transverse force rod has the shape of a lying figure eight with two approximately vertical loops 5 and 6, which on both sides from the Protruding insulating body 1 while the crossing area lies in the insulating body.
  • the ends of the shear bar are welded together, expediently by an overlap in the concrete area, not shown in the drawing, that is outside the insulating body 1.
  • the component can be installed on both sides and at the same time is characterized by a particularly high transverse force absorption, so that the splitting tensile forces emanating from the pressure elements are also reliably absorbed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Building Environments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fireproofing Substances (AREA)

Abstract

The invention relates to a construction element for thermal insulation between a building and a projecting outer part, comprising an insulating body (1) which is to be laid therebetween and has integrated metallic tensile-force bars (2), compressive-force bars (3) and shearing-force bars (4), which extend through said insulating body (1), transversely thereto. In this arrangement, the shearing-force bar (4) is bent downwards on the side (A), of the insulating body (1), which is directed towards the building, with the result that its lowermost region runs beneath that of the adjacent compression bar (3) and protects the building-side concrete panel in the region where loading is absorbed by the compression bars (3). <IMAGE>

Description

Die Erfindung betrifft ein Bauelement zur Wärmedämmung zwischen zwei zu betonierenden Bauteilen, insbesondere zwischen einem Gebäude und einem vorkragenden Außenteil, bestehend aus einem dazwischen zu verlegenden Isolierkörper mit integrierten metallischen Zug-, Druck- und Querkraftstäben, die sich quer zum Isolierkörper durch diesen hindurch erstrecken und im Falle der Zug- und Querkraftstäbe beidseits in die zu betonierenden Bauteile vorstehen, wogegen die Druckstäbe an beiden Enden mit den Seiten des Isolierkörpers fluchten und wobei die Querkraftstäbe ausgehend von der Gebäudeseite schräg von oben nach unten durch den Isolierkörper hindurchlaufen und sodann im Bereich der Druckzone in Richtung auf das zu betonierende vorkragende Außenteil vorstehen.The invention relates to a component for thermal insulation between two components to be concreted, in particular between a building and a cantilevered outer part, consisting of an insulating body to be laid between them with integrated metallic tensile, compressive and transverse force rods which extend transversely to the insulating body and through it in the case of the tensile and transverse force rods protrude on both sides into the components to be concreted, whereas the pressure rods are aligned at both ends with the sides of the insulating body and the transverse force rods run obliquely from top to bottom through the insulating body from the building side and then in the area of the pressure zone protrude towards the cantilevered outer part to be concreted.

Derartige Bauelemente gestatten es, vorkragende Betonteile, insbesondere Balkonplatten, mit der entsprechenden Zwischendecke eines Gebäudes zu verbinden, wobei die sonst üblichen Kältebrücken weitestgehend eliminiert werden. Sie setzen sich daher in der Praxis immer stärker durch und sind inzwischen in zahlreichen Ausführungsformen bekannt. Im allgemeinen ist jeder Isolierkörper mit mehreren horizontal durchlaufenden Zug- und Druckstäben und mit schräg eingebauten Querkraftstäben bestückt, wobei die Anzahl der Bewehrungsstäbe von der Länge des Isolierkörpers und von den zwischen den anschließenden Betonteilen zu übertragenden Kräften abhängig ist. Während die Zug- und die Querkraftstäbe aus dem Isolierkörper vorstehen müssen, damit eine ausreichende Überdeckung mit der Anschlußbewehrung der beidseits anschließenden Bauteile gewährleistet ist, können die Druckstäbe mit den Außenseiten des Isolierkörpers abschließen. Üblicherweise sind sie in diesem Fall an beiden Enden mit Querschnittserweiterungen versehen, damit sich die zu übertragenden Druckkräfte an den Stoßstellen auf eine größere Auflagefläche an den Betonbauteilen verteilen. Trotzdem kommt es in diesem Bereich zu erheblichen lokalen Spannungen, die bei Belastungsspitzen ein Abplatzen von Betonteilen an der Stoßstelle verursachen können.Components of this type allow cantilevered concrete parts, in particular balcony slabs, to be connected to the corresponding false ceiling of a building, with the otherwise usual cold bridges being largely eliminated. They are therefore becoming increasingly popular in practice and are now known in numerous embodiments. In general, each insulating body is equipped with several horizontally continuous tension and compression rods and with diagonally installed shear force rods, the number of reinforcing bars depends on the length of the insulating body and on the forces to be transmitted between the subsequent concrete parts. While the tensile and transverse force rods must protrude from the insulating body so that a sufficient overlap with the connecting reinforcement of the components adjoining on both sides is ensured, the compression rods can close with the outer sides of the insulating body. In this case, they are usually provided with cross-sectional expansions at both ends so that the pressure forces to be transmitted are distributed over a larger contact surface on the concrete components at the joints. Nevertheless, there are considerable local tensions in this area, which can cause concrete parts to flake off at the joint at peak loads.

Hiervon ausgehend liegt die Aufgabe der vorliegenden Erfindung darin, das eingangs beschriebene Bauelement durch kostengünstige Maßnahmen dahingehend zu verbessern, daß das Risiko von Abplatzungen an der Stoßstelle der Druckstäbe mit den angrenzenden Betonbauteilen zuverlässig beseitigt wird.Proceeding from this, the object of the present invention is to improve the component described at the outset by cost-effective measures in such a way that the risk of flaking at the joint of the pressure rods with the adjacent concrete components is reliably eliminated.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die in der Nähe der Druckstäbe angeordneten Querkraftstäbe im Bereich des zu betonierenden Gebäudeteiles nach unten abgebogen sind und unter Durchquerung der neutralen Zone durch weitere Abbiegung in die Druckzone des Gebäudeteiles eintreten und sodann in Richtung zum Isolierkörper zurücklaufen, wobei ihr tiefster Bereich unter dem der Druckstäbe liegt.This object is achieved in that the transverse force bars arranged in the vicinity of the pressure bars are bent downward in the area of the building part to be concreted and, crossing the neutral zone, enter the pressure zone of the building part by further turning and then run back in the direction of the insulating body, whereby its lowest area is below that of the pressure rods.

Die Erfindung beruht also auf dem Grundgedanken, dem Querkraftstab, der bisher nur in der Zugzone des Gebäudeteiles verlief, eine weitere Funktion zu geben, indem er soweit nach unten und zurück zum Isolierkörper abgebogen wird, daß er eine Beton-Bewehrung im Druckbereich des Druckstabes bildet. Dadurch werden die von den Druckstäben in den Beton eingeleiteten Spaltzugkräfte von dem abgebogenen Bereich des Querkraftstabes aufgenommen und das befürchtete Ausbrechen an der Stoßstelle ausgeschlossen.The invention is therefore based on the basic idea of giving the shear bar, which previously only ran in the tensile zone of the building part, a further function by bending it down and back to the insulating body so that it forms a concrete reinforcement in the pressure area of the pressure bar . As a result, the splitting tensile forces introduced into the concrete by the compression rods are absorbed by the bent region of the transverse force rod and the feared breaking out at the joint is excluded.

Darüber hinaus zeichnet sich die erfindungsgemäße Lösung durch niedrige Kosten aus, weil keine zusätzlichen Teile erforderlich sind, sondern lediglich die ohnehin bereits vorhandenen Querkraftstäbe anders geformt und verlegt zu werden brauchen.In addition, the solution according to the invention is characterized by low costs, because no additional parts are required, but only the already existing transverse force bars need to be shaped and laid differently.

Zweckmäßig weisen die Querkraftstäbe im Bereich des zu betonierenden Gebäudeteiles annähernd die Form eines 3/4-Ovals auf. Dabei ist es herstellungstechnisch am günstigsten, die Stäbe in eine geschlossene oder nahezu geschlossene Kreisringform zu biegen.The shear bars in the area of the part of the building to be concreted expediently have approximately the shape of a 3/4 oval. In terms of manufacturing technology, it is most advantageous to bend the bars into a closed or almost closed circular ring shape.

Das abgebogene Ende des Querkraftstabes kann ein Stück in den Isolierkörper hineinlaufen, damit ein Verhaken mit bauseitigen Bewehrungsstäben oder ein unbeabsichtigtes Aufbiegen ausgeschlossen wird. Insbesondere kann es am diagonalen Mittelabschnitt des Querkraftstabes angeschweißt sein.The bent end of the shear force rod can run a bit into the insulating body, so that it does not get caught with on-site reinforcement bars or prevent accidental bending. In particular, it can be welded to the diagonal central section of the transverse force rod.

Im gegenüberliegenden Bereich des Querkraftstabes, also im Bereich des vorkragenden Bauteiles, läuft der Querkraftstab schon bisher in der Nähe des Druckstabes, so daß hier die Ausbrechgefahr geringer ist. Trotzdem empfiehlt es sich auch hier aus Sicherheitsgründen, den Querkraftstab etwas tiefer zu legen, so daß er unter dem Niveau des Druckstabes verläuft und eine effektivere Ertüchtigung des Druckbereiches im Beton bewirkt. Besonders günstig ist es dabei, wenn der Querkraftstab anschließend aus der Druckzone heraus nach oben abgebogen wird und zumindest bis in die neutrale Zone des vorkragenden Betonbauteiles läuft, wobei er an seinem Ende zusätzlich noch hakenförmig ausgebildet sein kann.In the opposite area of the transverse force rod, that is to say in the region of the projecting component, the transverse force rod has previously been running in the vicinity of the pressure rod, so that the risk of breakout is lower here. Nevertheless, for safety reasons it is also recommended to lower the shear force rod so that it runs below the level of the pressure rod and causes a more effective strengthening of the pressure range in the concrete. It is particularly advantageous if the transverse force rod is then bent upwards out of the pressure zone and runs at least into the neutral zone of the projecting concrete component, it also being possible for it to be hook-shaped at its end.

Es kann dabei auch zweckmäßig sein, den Querkraftstab spiegelbildlich wie auf der gegenüberliegenden Seite verlaufen zu lassen, das heißt, daß er von der Druckzone kommend nach oben abgebogen wird und unter Durchquerung zumindest der neutralen Zone durch weitere Abbiegung in Richtung zum Isolierkörper zurückläuft und dort mit dem gegenüberliegenden Ende oder mit dem Mittelbereich des Querkraftstabes verbunden ist. Der Querkraftstab hat dann also annähernd die Form einer liegenden Acht und stellt ein in sich geschlossenes System für die Querkraftaufnahme dar. Man erhält dadurch nicht nur eine beidseitige Ertüchtigung des Druckbereiches im Beton mit der Möglichkeit positive und negative Querkräfte zu übertragen. Vielmehr ergibt sich auch der große Vorteil, daß die Fehlerursache durch Falscheinbau des Isolierkörpers beseitigt ist, denn aufgrund des annähernd symmetrisch ausgebildeten, in sich geschlossenen Querkraftstabes spielt es keine Rolle mehr, mit welcher Seite der Isolierkörper am Gebäude anliegt und mit welcher Seite er am vorkragenden Bauteil anliegt.It may also be expedient to allow the transverse force rod to run in mirror image as on the opposite side, that is to say that it comes from the pressure zone and is bent upwards and, crossing at least the neutral zone, runs back towards the insulating body by at least a further bend and there with is connected to the opposite end or to the central region of the transverse force rod. The shear force rod then has approximately the shape of a horizontal figure eight and represents a self-contained system for shear force absorption. This not only gives the pressure range in the concrete a strengthening on both sides with the possibility of transferring positive and negative shear forces. Rather, there is also the great advantage that the cause of the error is eliminated by incorrect installation of the insulating body, because due to the approximately symmetrical, self-contained shear force rod, it no longer matters which side of the insulating body is in contact with the building and which side it is on the cantilever Component is present.

Erfindungsgemäß verlaufen die Querkraftstäbe in ihrem unteren Bereich auf einem tieferen Niveau als bisher und infolgedessen ist auch ihre Beton-Überdeckung deutlich geringer. Es empfiehlt sich, die Querkraftstäbe durchgehend aus Edelstahl herzustellen, damit die unvermeidliche Sauerstoff-Diffusion keine Korrosion hervorrufen kann. In diesem Fall kann die Beton-Überdeckung bis auf Null abnehmen.According to the invention, the transverse force bars run at a lower level than before in their lower region and, as a result, their concrete coverage is also significantly less. It is advisable to make the shear bars from stainless steel throughout so that the inevitable oxygen diffusion cannot cause corrosion. In this case, the concrete cover can decrease to zero.

Wie schon eingangs erwähnt, haben die Druckstäbe an ihren Enden häufig eine Querschnittserweiterung, um die an der Stoßstelle auftretende hertzsche Pressung zu verringern. In diesem Zusammenhang ist es besonders günstig, wenn glockenähnliche Druckstücke verwendet werden, die nach außen offen sind und an ihrem Rand mit dem Isolierkörper fluchten. Die Querkraftstäbe sollten in diesem Fall entsprechend tief heruntergezogen werden, damit sie zumindest im unteren Bereich dieser glockenähnlichen Druckstücke oder sogar noch darunter verlaufen.As already mentioned at the beginning, the pressure rods often have a cross-sectional widening at their ends in order to reduce the Hertzian pressure occurring at the joint. In this context, it is particularly advantageous if bell-like pressure pieces are used which are open to the outside and are flush with the insulating body at their edge. In this case, the transverse force rods should be pulled down so that they run at least in the lower area of these bell-like pressure pieces or even below.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnung; dabei zeigt

Figur 1
einen Querschnitt durch das erfindungsgemäße Bauelement;
Figur 2
eine Seitenansicht von der Gebäudeseite her;
Figur 3
eine Draufsicht von oben und
Figur 4
einen Querschnitt einer alternativen Bauform
Further features and advantages of the invention will become apparent from the following description of an embodiment with reference to the drawing; shows
Figure 1
a cross section through the component according to the invention;
Figure 2
a side view from the building side;
Figure 3
a top view from above and
Figure 4
a cross section of an alternative design

Das Bauelement besteht aus einem im wesentlichen rechteckigen Isolierkörper 1, der auf der Baustelle zwischen den zu betonierenden Betonplatten angeordnet wird. Er weist in seinem oberen Bereich eine Reihe von Zugstäben 2 und in seinem unteren Bereich eine Reihe von Druckstäben 3 auf. Während die Zugstäbe beidseits weit vorstehen, schließen die Druckstäbe über endständige, nach außen offene Kappen 3a bündig mit den Außenseiten des Isolierkörpers ab, die den zu betonierenden Bauteilen zugewandt sind.The component consists of a substantially rectangular insulating body 1, which on the construction site between the concrete slabs to be concreted is arranged. It has a series of tension rods 2 in its upper region and a series of compression rods 3 in its lower region. While the tension rods protrude far on both sides, the pressure rods are flush with the outside of the insulating body via terminal caps 3a which are open to the outside and which face the components to be concreted.

Außerdem trägt der Isolierkörper 1 eine Reihe von Querkraftstäben 4, die in üblicher Weise zur Aufnahme der vertikalen Gewichtskraft des vorkragenden Außenteiles dienen. Sie treten also von der Gebäudeseite A kommend etwa in mittlerer Höhe in den Isolierkörper 1 ein, verlaufen dann schräg nach unten und treten im unteren Bereich an der dem vorkragenden Außenteil B zugewandten Seite wieder aus dem Isolierkörper aus.In addition, the insulating body 1 carries a series of shear bars 4, which serve in the usual way to absorb the vertical weight of the projecting outer part. They therefore come from the building side A approximately at a medium height into the insulating body 1, then run obliquely downward and emerge again from the insulating body in the lower region on the side facing the projecting outer part B.

Wesentlich ist nun, daß der dem Gebäude A zugeordnete überstehende Teil des Querkraftstabes 4 nach unten abgebogen ist und unter Bildung eines annähernden 3/4-Kreisbogens 4a unter das Niveau des Druckstabes 3 heruntergezogen ist und zum Isolierkörper 1 zurückläuft. Das Ende 4b ragt aus Sicherheitsgründen ein Stück in den Isolierkörper hinein.It is now essential that the projecting part of the transverse force rod 4 assigned to the building A is bent downward and is pulled down to form an approximate 3/4 circular arc 4a below the level of the pressure rod 3 and runs back to the insulating body 1. For safety reasons, the end 4b protrudes a bit into the insulating body.

Man erkennt in Figur 1 deutlich, daß durch diesen Verlauf die vertikalen Zugspannungen, die vom Druckstab 3 auf der Gebäudeseite ausgelöst werden und die gelegentlich zum Abplatzen an der Stirnseite der gebäudeseitigen Betonplatte geführt haben, durch den Querkraftstab aufgenommen werden. Selbstverständlich sind zu diesem Zweck die Querkraftstäbe 4 immer in unmittelbarer Nachbarschaft zu den Druckstäben 3 angeordnet, wie dies aus den Figuren 2 und 3 deutlich wird.It can be clearly seen in FIG. 1 that the vertical tensile stresses which are triggered by the pressure rod 3 on the building side and which have occasionally led to flaking on the end face of the building-side concrete slab are absorbed by the transverse force rod. The shear bars are, of course, for this purpose 4 always arranged in the immediate vicinity of the pressure rods 3, as is clear from FIGS. 2 and 3.

Im Austrittsbereich der Querkraftstäbe 4 weist der Isolierkörper Aussparungen 1a von etwa 1cm Tiefe auf. Dadurch ist der Querkraftstab im Biegebereich zuverlässig im Beton eingeschlossen.In the exit area of the transverse force rods 4, the insulating body has cutouts 1 a of approximately 1 cm depth. As a result, the shear bar is reliably enclosed in the concrete in the bending area.

An der dem vorkragenden Außenteil B zugewandten Seite treten die Querkraftstäbe stets im unteren Bereich aus dem Isolierkörper 1 aus und bilden dort die erwünschte Abstützung des Betons gegenüber den genannten Abplatz-Kräften. Es muß lediglich dafür gesorgt werden, daß der Querkraftstab hier ebenso wie auf der anderen Seite des Isolierkörpers etwas tiefer als sonst üblich angeordnet ist, damit er das Niveau der Druckstäbe unterschreitet. Anschließend ist der Querkraftstab zweckmäßig nach oben abgebogen und läuft hakenförmig aus, wie dies durch den Abschnitt 4c verdeutlicht ist.On the side facing the projecting outer part B, the transverse force bars always emerge from the insulating body 1 in the lower region and there form the desired support of the concrete against the mentioned chipping forces. It is only necessary to ensure that the transverse force rod is arranged here, just like on the other side of the insulating body, somewhat lower than usual so that it falls below the level of the pressure rods. The transverse force rod is then expediently bent upward and runs out in a hook-like manner, as is illustrated by section 4c.

Figur 4 zeigt eine alternative Bauform, bei der der Querkraftstab 4 auf Seiten des vorkragenden Gebäudeteiles B ähnlich umgebogen ist wie auf Seiten des Gebäudes A. Dadurch hat der Querkraftstab die Form einer liegenden Acht mit zwei etwa vertikalen Schlaufen 5 und 6, die beidseits aus dem Isolierkörper 1 herausragen, während der Kreuzungsbereich im Isolierkörper liegt.Figure 4 shows an alternative design, in which the transverse force rod 4 on the side of the projecting part B is bent similar to that on the side of the building A. As a result, the transverse force rod has the shape of a lying figure eight with two approximately vertical loops 5 and 6, which on both sides from the Protruding insulating body 1 while the crossing area lies in the insulating body.

Die Enden des Querkraftstabes sind miteinander verschweißt, und zwar zweckmäßig durch eine zeichnerisch nicht dargestellte Überlappung im Betonbereich, also außerhalb des Isolierkörpers 1. Durch diese Gestaltung ist das Bauelement beidseitig einbaubar und zeichnet sich gleichzeitig durch eine besonders hohe Querkraftaufnahme aus, so daß auch die von den Druckelementen ausgehenden Spaltzugkräfte zuverlässig aufgenommen werden.The ends of the shear bar are welded together, expediently by an overlap in the concrete area, not shown in the drawing, that is outside the insulating body 1. With this design, the component can be installed on both sides and at the same time is characterized by a particularly high transverse force absorption, so that the splitting tensile forces emanating from the pressure elements are also reliably absorbed.

Claims (17)

  1. Constructional element for providing thermal insulation between two parts of a construction to be concreted, in particular between a building (A) and a protruding outer part (B), consisting of an insulating body (1) to be laid therebetween, the insulating body (1) having integrated metal tension, compression and transverse-force bars (2, 3, 4) which extend across and through the insulating body (1), the tension and transverse-force bars (2, 4) protruding at both sides into the parts of the construction (A, B) to be concreted, the compression bars (3), on the other hand, being provided at both ends with compression elements (3a) facing the parts of the construction (A, B) to be concreted, and in which the transverse-force bars (4) pass, starting from the building side (A), diagonally from top to bottom through the insulating body (1) and thereafter project, in the region of the compression zone, toward the protruding outer part (B) to be concreted, characterised in that
    the transverse-force bars disposed near the compression bars (3) are bent downwards in the region of the part of the building (A) to be concreted and, crossing through the neutral zone, enter by further bending (4a) the compression zone of the part of the building (A) and thereafter return toward the insulating body (1), their lowest region lying below that of the compression bars (3).
  2. Constructional element according to Claim 1, characterised in that the transverse-force bars (4) in the region of the part of the building (A) to be concreted are approximately in the shape of a 3/4 oval (4a).
  3. Constructional element according to Claim 1, characterised in that the transverse-force bars (4) in the region of the part of the building (A) to be concreted are approximately in the shape of a closed or almost closed annulus (4a).
  4. Constructional element according to Claim 1, characterised in that the ends (4b) of the transverse-force bars (4) extending in the direction of the insulating body (1) extend into said body.
  5. Constructional element according to Claim 4, characterised in that the ends (4b) are welded to the transverse-force bar (4) or to the compression bar (3).
  6. Constructional element according to Claim 1, characterised in that, in the region of the protruding outer part (B) also, the transverse-force bars (4) extend in their lowest region below that of the compression bars (3).
  7. Constructional element according to Claim 6, characterised in that the transverse-force bars (4) in the region of the protruding outer part (B) are bent upwards, and in particular at least as far as into the neutral zone.
  8. Constructional element according to Claim 6 or 7, characterised in that the transverse-force bars (4) in the region of the protruding outer part (B) extend out in a hook shape at their ends (4c).
  9. Constructional element according to Claim 7, characterised in that the end (4c) associated with the outer part (B) in crossing through at least the neutral zone returns by further bending in the direction of the insulating body (1).
  10. Constructional element according to Claim 9, characterised in that the end (4c) extends into the insulating body (1) and is connected to the opposite end (4b) or mid-region of the transverse-force bar (4).
  11. Constructional element according to Claim 10, characterised in that the connection of the transverse-force bar into a closed figure eight is achieved by a welding process in the concrete region.
  12. Constructional element according to Claim 1, characterised in that the insulating body includes recesses (la) in the exit region of the transverse-force bars.
  13. Constructional element according to Claim 12, characterised in that the recesses (1a) merge into corresponding recesses in the region of the compression elements (3a).
  14. Constructional element according to Claim 1, characterised in that the transverse-force bars (4) consist of high-grade steel, and in particular ribbed high-grade steel.
  15. Constructional element according to Claim 1, characterised in that the compression elements (3a) are each aligned at their outer end roughly with the insulating body (1).
  16. Constructional element according to Claim 15, characterised in that the transverse-force bars (4) extend in their lowest region on both sides of the insulating body below the level of the compression elements (3a).
  17. Constructional element according to Claim 15, characterised in that the compression elements (3a) at the ends of the compression bars (3) are formed by bell-like caps which are open towards the outside, said caps being aligned at their edge with the insulating body (1).
EP94100633A 1993-02-01 1994-01-18 Construction element for the thermal insulation of buildings Expired - Lifetime EP0609690B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4302683A DE4302683A1 (en) 1993-02-01 1993-02-01 Component for thermal insulation in buildings
DE4302683 1993-02-01

Publications (2)

Publication Number Publication Date
EP0609690A1 EP0609690A1 (en) 1994-08-10
EP0609690B1 true EP0609690B1 (en) 1996-09-25

Family

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Application Number Title Priority Date Filing Date
EP94100633A Expired - Lifetime EP0609690B1 (en) 1993-02-01 1994-01-18 Construction element for the thermal insulation of buildings

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EP (1) EP0609690B1 (en)
AT (1) ATE143440T1 (en)
DE (2) DE4302683A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623298C2 (en) * 1996-05-23 2000-11-16 Richard Moosmann Fastener
DE19804038A1 (en) * 1998-02-03 1999-08-05 Schoeck Bauteile Gmbh Component for thermal insulation
DE29903589U1 (en) * 1999-02-26 1999-05-20 Schöck Bauteile GmbH, 76534 Baden-Baden Component for thermal insulation
DE202016103344U1 (en) * 2016-06-23 2016-08-01 Max Frank Gmbh & Co. Kg Connection element for load-introducing components
DE202022102705U1 (en) 2022-05-17 2022-05-31 Cbg Composites Gmbh Thermally insulating 3D product made of basalt fiber
DE202024100516U1 (en) 2024-02-02 2024-02-14 Cbg Composites Gmbh Gas-permeable 3D thermal insulation product made from basalt fibers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150664B1 (en) * 1984-01-13 1988-10-19 Pawe Ag Cantilever plate connecting element
DE3422905A1 (en) * 1984-06-20 1986-01-02 Hansjörg Dipl.-Ing. 7542 Schömberg Braun Apparatus for connecting a balcony slab and an intermediate floor
AT396151B (en) * 1987-03-11 1993-06-25 Avi Alpenlaendische Vered CONNECTING ELEMENT FOR CANTILEVER PLATES AND CONNECTING ELEMENT COMPOSED FROM MULTIPLE CONNECTING ELEMENTS
DE3739967A1 (en) * 1987-11-25 1989-06-08 Meisinger Kg M STEEL BEAM FOR A CONCRETE PLATE
CH676615A5 (en) * 1988-04-22 1991-02-15 Bau Box Ewiag
DE8905521U1 (en) * 1989-05-02 1989-06-29 Hoff, Walter, 4000 Düsseldorf Insulating transition element, especially for cantilever slab connections
DE9001016U1 (en) * 1990-01-30 1990-04-26 M. Meisinger Kg, 8890 Aichach Connecting element for a concrete cantilever slab
DE4009987C2 (en) * 1990-03-28 1995-08-24 Schoeck Bauteile Gmbh Thermal insulation component

Also Published As

Publication number Publication date
EP0609690A1 (en) 1994-08-10
ATE143440T1 (en) 1996-10-15
DE4302683A1 (en) 1994-08-04
DE59400705D1 (en) 1996-10-31

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