EP3315678A1 - Prefabricated element for connecting a concrete cantilever plate to a building structure - Google Patents

Prefabricated element for connecting a concrete cantilever plate to a building structure Download PDF

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Publication number
EP3315678A1
EP3315678A1 EP17198011.3A EP17198011A EP3315678A1 EP 3315678 A1 EP3315678 A1 EP 3315678A1 EP 17198011 A EP17198011 A EP 17198011A EP 3315678 A1 EP3315678 A1 EP 3315678A1
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EP
European Patent Office
Prior art keywords
prefabricated component
stiffening plates
component according
concrete
insulating body
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Granted
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EP17198011.3A
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German (de)
French (fr)
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EP3315678B1 (en
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Ikona AG
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Ikona AG
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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
    • E04B1/003—Balconies; Decks
    • E04B1/0038—Anchoring devices specially adapted therefor with means for preventing cold bridging
    • 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
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces

Definitions

  • the invention relates to a prefabricated component for connecting a concrete cantilever as a balcony element to a concrete structure such as a building ceiling.
  • the prefabricated component comprises a DämmAvem for arrangement in a joint between the concrete cantilever and the concrete structure, as well as the insulating body and cross on both sides for embedding in the concrete cantilever and the concrete structure on this projecting tie rods, pressure bars and stiffening plates each made of steel.
  • the tension rods and the pressure rods are connected in pairs via the stiffening plates.
  • Such a prefabricated component is made EP2055845 A2 known.
  • the concrete cantilever and the concrete component to reduce thermal bridges are thermally insulated from each other.
  • the tensile, compressive and shear forces caused by the concrete cantilever are absorbed by the tension rods, the pressure rods and the stiffening plates.
  • the invention is based on the recognition that cross bars for the installation of EP2055845 A2 familiar prefabricated often prove to be a hindrance, because they can potentially collide with the reinforcement of the concrete header and / or the concrete component. Also, they can be a hindrance to warehousing and transportation.
  • the invention therefore has as its object, inter alia, to enable the reception and transmission of the transverse force caused by the concrete cantilever plate without the use of transverse rods in a prefabricated component of the type mentioned at the outset.
  • the invention solves this problem by a prefabricated component according to claim 1.
  • the inventive prefabricated component is therefore characterized in that end faces of the stiffening plates are aligned obliquely relative to the tensile and / or the pressure bars.
  • the transverse forces caused by the concrete cantilever can be absorbed and transmitted through these surfaces.
  • the oblique faces take over the task of the cross bars in the prior art.
  • the prefabricated component according to the invention fits better on the construction site between the reinforcements of the concrete cantilever and / or the concrete component and, if necessary, can also be exchanged more easily after a faulty assembly.
  • To adjust the length of the finished component cuts in the soft insulating body suffice.
  • the elimination of transverse bars the units of interconnected tension and compression bars and stiffening plates are flat, ie practically two instead of three-dimensional. As a result, these units can be much more compact stack and transport.
  • the end faces of the stiffening plates are preferably provided with a plurality, in particular at least three prongs.
  • the tension rods and the pressure rods are slim and the stiffening plates made thin, so that on the one hand no significant cross-section For the heat conduction and on the other hand by deformation within the insulating body relative, caused by unequal heat changes changes in length of concrete cantilever and concrete component can follow sufficiently.
  • the respective dimensions depend on the dimension in particular of the cantilever.
  • the stiffening plates are preferably made thinner than the tensile and / or the pressure bars.
  • the stiffening plates are preferably thicker than running within the insulating body and, for example, at least twice as thick, preferably even 2- to 5 times as thick. As a result of their enlarged area, transverse forces can be absorbed more effectively from the surrounding concrete or transferred to the latter via the oblique end face.
  • the thickening of the stiffening plates at their end faces can be achieved simply by placing them thereon e.g. be brought by welding fastened bar made of steel.
  • the stiffening plates on both sides over the insulating body at most 30 mm survive. As a result, they only slightly engage in the concrete of the two concrete components.
  • the supernatant or the depth of engagement, measured at points to the tip only 10 to 20 mm.
  • the insulating body can be designed in several parts with several Dämmblöcken and two outer cover layers.
  • the Dämmblöcke come here between each two units of interconnected tension and compression bars and stiffening plates for arrangement.
  • the outer cover layers extend continuously over all the insulating blocks and the units mentioned.
  • the cover layers are preferably made of a harder and more fracture resistant material than the Dämmblöcke and thus give the prefabricated the required overall handling for its handling.
  • the Dämmblöcke, the units mentioned and the outer cover layers can be held together simply by guided around them bands. Since such bands are easy to install, the joining of the parts may possibly only after a storage or transport phase, in which case the compact stackability of said units is also advantageous.
  • the tension rods and the pressure rods can be the same thickness and / or the same length.
  • the prefabricated part of Fig. 1 is arranged in a joint between a dashed line indicated cantilever 1 made of concrete and also indicated by dashed lines concrete structure 2.
  • the cantilever panel 1 may be a balcony slab and the concrete structure 2 may be a floor slab of a building.
  • the prefabricated component has an elongate insulating body 3, which is penetrated by upper tension rods 4 and lower pressure rods 5.
  • upper tension rods 4 and lower pressure rods 5 are connected in pairs by stiffening plates 6, for example, by the tie rods 4 are welded respectively at the upper edge and the pressure bars respectively at the bottom of the stiffening plates 6.
  • the tension rods 4 and the pressure rods run parallel to each other and parallel to the top and bottom at least the concrete cantilever 1.
  • About the insulating body 3 they are on both sides, so that they are embedded with their ends in the concrete cantilever 1 and the concrete structure 2.
  • the connecting plates 6 are also on both sides on the insulating body 3 and over thereby embedded with their end cuts also in the concrete header 1 and the concrete structure 2, albeit less deeply.
  • the embedded in the concrete cantilever 1 and the concrete structure 2 end surfaces 7 of the stiffening plates 6 obliquely against the train 4 and / or the pressure bars 5 are aligned. In the illustrated embodiment, this is achieved by the formation of the end faces 7 with four prongs each. Other oblique training as well as a different number of teeth are also possible. Due to the oblique design of the end faces 7, the transverse forces caused by the concrete cantilever 1 can be absorbed and transmitted through these surfaces.
  • the tension rods 3 and the pressure rods 4 are preferably made of rebar, so that their over the insulating body protruding ends can be sized by a sufficient anchorage in the concrete short, in most cases less than 50 cm long.
  • embedment depths are sufficient up to tips of the teeth of 10 to 30 mm.
  • the stiffening plates 6 are thinner inside the insulating body than the tension bars 4 and / or the pressure bars 5, wherein a thickness of 3 to 4 mm is suitable.
  • the height of the stiffening plates 6 corresponds to the mutual distance of the train 4 and push rods 5, which in turn depends on the masses, in particular the concrete cantilever 1.
  • the stiffening plates 6 should be thicker at their end faces 7, preferably 2 to 5 times as thick as inside the insulating body 3. This can be easily achieved by a respectively mounted on the end faces 7 bar of steel, as in FIG. 3 and FIG. 4 denoted by 8.
  • the strip 8 may simply be welded onto the end faces 7. In Fig. 3 it is merely because of their better recognizability because with some distance from the end faces 7 schematically created there.
  • tension 4 and the pressure bars 5 and the stiffening plates 6 may be exposed to moisture in the region of the insulating body, they are there and at least within the Betonüberdeckitch the concrete top plate 1 and the concrete structure 2 made of a stainless steel.
  • the insulating body 3 is formed in several parts with several Dämmblöcken 3.1 and two outer cover layers 3.2 and 3.3, wherein the Dämmblöcke 3.1 are arranged between two units of interconnected train 4 and compression bars 5 and stiffening plates 6.
  • the outer cover layers 3.2 and 3.3 in contrast, extend along the entire prefabricated component continuously over all the insulation blocks 3.1 and the said units 4, 5, 6 away.
  • the said parts are held together by an outside around them stretched longitudinal belt 10 and by a plurality of transverse straps 11.
  • the Switzerland- 4 and the pressure bars 5 are in the illustrated embodiment of Fig. 1 the same thickness and the same length, so that the prefabricated component is largely symmetrical and can be installed both rotated about a longitudinal and a transverse axis.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

Bei einem Fertigbauteil zum Anschluss einer Betonkragplatte (1) an ein Betonbauwerk (2) mit einem Dämmkörper (3) zur Anordnung in einer Fuge zwischen der Betonkragplatte (1) und dem Betonbauwerk (2), mit den Dämmkörper (3) durchgreifenden, beidseitig über diesen zur Einbettung in der Betonkragplatte (1) und dem Betonbauwerk (2) überstehenden Zugstäbe (4), Druckstäben (5) und Versteifungsplatten (6) jeweils aus Stahl, wobei die Zugstäbe (4) und die Druckstäbe (5) über die Versteifungsplatten (6) paarweise miteinander verbunden sind, wird durch die Erfindung vorgeschlagen, dass Stirnflächen (7) der Versteifungsplatten (6) schräg gegenüber den Zug- (4) und/oder den Druckstäben (5) ausgerichtet sind.In a prefabricated part for connection of a concrete cantilever (1) to a concrete structure (2) with a Dämmkörper (3) for arrangement in a joint between the concrete cantilever (1) and the concrete structure (2), with the insulating body (3) by cross, on both sides these tension rods (4), pressure rods (5) and stiffening plates (6) projecting from the concrete cover plate (1) and the concrete structure (2), each made of steel, the tension rods (4) and the pressure rods (5) passing over the stiffening plates (4). 6) are connected in pairs, is proposed by the invention that end faces (7) of the stiffening plates (6) are aligned obliquely relative to the tension (4) and / or the pressure bars (5).

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft ein Fertigbauteil zum Anschluss einer Betonkragplatte wie einem Balkonelement an ein Betonbauwerk wie einer Gebäudedecke. Das Fertigbauteil umfasst einen Dämmkörper zur Anordnung in einer Fuge zwischen der Betonkragplatte und dem Betonbauwerk, sowie den Dämmkörper durchgreifende und beidseitig zur Einbettung in der Betonkragplatte und dem Betonbauwerk über diesen überstehende Zugstäbe, Druckstäbe und Versteifungsplatten jeweils aus Stahl. Die Zugstäbe und die Druckstäbe sind über die Versteifungsplatten paarweise miteinander verbunden.The invention relates to a prefabricated component for connecting a concrete cantilever as a balcony element to a concrete structure such as a building ceiling. The prefabricated component comprises a Dämmkörper for arrangement in a joint between the concrete cantilever and the concrete structure, as well as the insulating body and cross on both sides for embedding in the concrete cantilever and the concrete structure on this projecting tie rods, pressure bars and stiffening plates each made of steel. The tension rods and the pressure rods are connected in pairs via the stiffening plates.

STAND DER TECHNIKSTATE OF THE ART

Ein solches Fertigbauteil ist aus EP2055845 A2 bekannt. Durch den Dämmkörper werden die Betonkragplatte und das Betonbauteil zur Verminderung von Wärmebrücken thermisch gegeneinander isoliert. Die durch die Betonkragplatte bewirkten Zug-, Druck- und Scherkräfte werden durch die Zugstäbe, die Druckstäbe und die Versteifungsplatten aufgenommen. Diese sind aus Stahl und so schlank bzw. dünn ausgeführt, dass sie einerseits die wirksamen Kräfte noch aufnehmen, andererseits aber keinen nennenswerten Querschnitt für die Wärmeleitung aufweisen und auch durch Verformung innerhalb des Dämmkörpers relativen, durch ungleiche Wärmeänderungen verursachte Längenänderungen von Betonkragplatte und Betonbauteil folgen können. Beidseits des Dämmkörpers sind bei dem bekannten Fertigbauteil zusätzlich noch Querstäbe durch die Versteifungsplatten durchgeführt zur Aufnahme und Übertragung der durch die Betonkragplatte bewirkten Querkräfte.Such a prefabricated component is made EP2055845 A2 known. Through the insulating body, the concrete cantilever and the concrete component to reduce thermal bridges are thermally insulated from each other. The tensile, compressive and shear forces caused by the concrete cantilever are absorbed by the tension rods, the pressure rods and the stiffening plates. These are made of steel and so slim or thin that they on the one hand still absorb the effective forces, but on the other hand have no significant cross section for the heat conduction and also by deformation within the insulating body relative, caused by unequal heat changes length changes of Betonkragplatte and concrete component can follow , On both sides of the insulating body cross bars are still performed by the stiffening plates for receiving and transmitting the forces caused by the concrete cantilever transverse forces in the known prefabricated component in addition.

Aus DE 102013 111 091 A1 ist es bekannt, zur Verbindung einer Vorsatzschale mit einer Tragschale von Wandbauelementen mit ihren Enden in den Schalenbeton eingebettete Bolzen sowie separat davon plattenförmige, an einander gegenüberliegenden Plattenrändern ebenfalls in den Schalenbeton eingebettete Stützelemente jeweils aus Kunststoff zu verwenden. An den Plattenrändern der Stützelemente sind zwei zahnartige Vorsprünge ausgebildet, zwischen die Bewehrungsstäbe eines in die Tragschale eingebetteten Bewehrungsgitters eingreifen können. In Richtung der Plattennormalen sind diese Vorsprünge gegenüber der Plattendicke von überwiegend um die 12 mm geweitet zur Verbesserung der Aufnahme von Kräften parallel zur Plattenebene in der Verbindungsrichtung. Die Bolzen und die Stützelemente sind für Wandbauelemente ausgelegt, deren Vorsatzschale nur bis zu etwa einer Tonne wiegt. Für die Anbindung beispielsweise einer Balkonplatte, die bis 10 Tonnen wiegen kann, sind sie nicht geeignet.Out DE 102013 111 091 A1 It is known to use for connecting an attachment shell with a support shell of wall components with their ends in the shell concrete embedded bolts and separately therefrom plate-shaped, at opposite plate edges also embedded in the shell concrete support elements each made of plastic. At the plate edges of the support elements two tooth-like projections are formed, can intervene between the reinforcing bars of an embedded in the tray reinforcing grid. In the direction of the plate normal, these projections are widened in relation to the plate thickness of predominantly 12 mm to improve the absorption of forces parallel to Board level in the connection direction. The bolts and the support elements are designed for wall elements whose front shell weighs only up to about a ton. For the connection, for example, a balcony slab, which can weigh up to 10 tons, they are not suitable.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Die Erfindung geht von der Erkenntnis aus, dass sich Querstäbe für den Einbau des aus EP2055845 A2 bekannten Fertigbauteils häufig als hinderlich erweisen, weil sie potentiell mit der Bewehrung der Betonkragplatte und/oder des Betonbauteils kollidieren können. Auch können sie bei der Lagerhaltung und beim Transport hinderlich sein. Die Erfindung stellt sich deshalb unter anderem die Aufgabe, bei einem Fertigbauteil der eingangs genannten Art die Aufnahme und Übertragung der durch die Betonkragplatte bewirkten Querkraft ohne den Einsatz von Querstäben zu ermöglichen. Die Erfindung löst diese Aufgabe durch ein Fertigbauteil gemäss Anspruch 1. Das erfindungsgemässe Fertigbauteil ist demnach dadurch gekennzeichnet ist, dass Stirnflächen der Versteifungsplatten schräg gegenüber den Zug- und/oder den Druckstäben ausgerichtet sind. Durch die schräge Ausbildung der Stirnflächen können über diese Flächen die durch die Betonkragplatte bewirkten Querkräfte aufgenommen und übertragen werden. Die schrägen Stirnflächen übernehmen damit die Aufgabe der Querstäbe beim Stand der Technik. Durch den Wegfall von Querstäben fügt sich das erfindungsgemässe Fertigbauteil besser auf der Baustelle zwischen die Bewehrungen der Betonkragplatte und/oder des Betonbauteils ein und kann nach einer fehlerhaften Montage ggf. auch einfacher ausgetauscht werden. Zur Längenanpassung des Fertigbauteils genügen Schnitte im weichen Dämmkörper. Durch den Wegfall von Querstäben sind die Einheiten aus miteinander verbundenen Zug- und Druckstäben sowie Versteifungsplatten flach, d.h. praktisch zwei- statt dreidimensional. Dadurch lassen sich diese Einheiten wesentlich kompakter stapeln und transportieren.The invention is based on the recognition that cross bars for the installation of EP2055845 A2 familiar prefabricated often prove to be a hindrance, because they can potentially collide with the reinforcement of the concrete header and / or the concrete component. Also, they can be a hindrance to warehousing and transportation. The invention therefore has as its object, inter alia, to enable the reception and transmission of the transverse force caused by the concrete cantilever plate without the use of transverse rods in a prefabricated component of the type mentioned at the outset. The invention solves this problem by a prefabricated component according to claim 1. The inventive prefabricated component is therefore characterized in that end faces of the stiffening plates are aligned obliquely relative to the tensile and / or the pressure bars. Due to the oblique design of the end surfaces, the transverse forces caused by the concrete cantilever can be absorbed and transmitted through these surfaces. The oblique faces take over the task of the cross bars in the prior art. By eliminating crossbars, the prefabricated component according to the invention fits better on the construction site between the reinforcements of the concrete cantilever and / or the concrete component and, if necessary, can also be exchanged more easily after a faulty assembly. To adjust the length of the finished component cuts in the soft insulating body suffice. The elimination of transverse bars, the units of interconnected tension and compression bars and stiffening plates are flat, ie practically two instead of three-dimensional. As a result, these units can be much more compact stack and transport.

Bevorzugte Aus- und Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.Preferred embodiments and further developments of the invention are specified in the dependent claims.

Danach sind die Stirnflächen der Versteifungsplatten vorzugsweise mit mehreren, insbesondere mindestens drei Zacken versehen.Thereafter, the end faces of the stiffening plates are preferably provided with a plurality, in particular at least three prongs.

Wie beim Stand der Technik sind die Zugstäbe und die Druckstäbe schlank und die Versteifungsplatten dünn ausgeführt, so dass sie einerseits keinen nennenswerten Querschnitt für die Wärmeleitung aufweisen und andererseits durch Verformung innerhalb des Dämmkörpers relativen, durch ungleiche Wärmeänderungen verursachte Längenänderungen von Betonkragplatte und Betonbauteil ausreichend folgen können. Die jeweiligen Dimensionierungen hängen von der Dimension insbesondere der Kragplatte ab. Innerhalb des Dämmkörpers sind die Versteifungsplatten vorzugsweise dünner als die Zug- und/oder die Druckstäbe ausgeführt. An ihren Stirnflächen sind die Versteifungsplatten jedoch bevorzugt dicker als innerhalb des Dämmkörpers ausgeführt und zwar beispielsweise mindestens doppelt so dick, vorzugsweise sogar 2- bis 5-mal so dick. Durch ihre dadurch vergrösserte Fläche können über die schrägen Stirnfläche Querkräfte wirksamer aus dem umgebenden Beton aufgenommen bzw. auf diesen übertragen werden.As in the prior art, the tension rods and the pressure rods are slim and the stiffening plates made thin, so that on the one hand no significant cross-section For the heat conduction and on the other hand by deformation within the insulating body relative, caused by unequal heat changes changes in length of concrete cantilever and concrete component can follow sufficiently. The respective dimensions depend on the dimension in particular of the cantilever. Within the insulating body, the stiffening plates are preferably made thinner than the tensile and / or the pressure bars. At their end faces, however, the stiffening plates are preferably thicker than running within the insulating body and, for example, at least twice as thick, preferably even 2- to 5 times as thick. As a result of their enlarged area, transverse forces can be absorbed more effectively from the surrounding concrete or transferred to the latter via the oblique end face.

Die Verdickung der Versteifungsplatten an ihren Stirnflächen kann einfach durch eine darauf z.B. durch Schweissen befestigte Leiste aus Stahl herbeigeführt werden.The thickening of the stiffening plates at their end faces can be achieved simply by placing them thereon e.g. be brought by welding fastened bar made of steel.

Es genügt, wenn die Versteifungsplatten beidseitig über den Dämmkörper höchstens 30 mm, überstehen. Sie greifen dadurch nur geringfügig in den Beton der beiden Betonbauteile ein. Vorzugsweise beträgt der Überstand bzw. die Eingriffstiefe, bei Zacken gemessen bis zu deren Spitze, nur 10 bis 20 mm.It is sufficient if the stiffening plates on both sides over the insulating body at most 30 mm, survive. As a result, they only slightly engage in the concrete of the two concrete components. Preferably, the supernatant or the depth of engagement, measured at points to the tip, only 10 to 20 mm.

Der Dämmkörper kann mehrteilig ausgebildet sein mit mehreren Dämmblöcken und zwei äusseren Abdecklagen. Die Dämmblöcke kommen dabei zwischen jeweils zwei Einheiten aus miteinander verbundenen Zug- und Druckstäben sowie Versteifungsplatten zur Anordnung. Die äusseren Abdecklagen erstrecken sich demgegenüber durchgehend über alle Dämmblöcke sowie die genannten Einheiten. Die Abdecklagen bestehen vorzugsweise aus einem härteren und bruchfesteren Material als die Dämmblöcke und verleihen damit dem Fertigbauteil die für seine Handhabung erforderliche Gesamtstabilität.The insulating body can be designed in several parts with several Dämmblöcken and two outer cover layers. The Dämmblöcke come here between each two units of interconnected tension and compression bars and stiffening plates for arrangement. In contrast, the outer cover layers extend continuously over all the insulating blocks and the units mentioned. The cover layers are preferably made of a harder and more fracture resistant material than the Dämmblöcke and thus give the prefabricated the required overall handling for its handling.

Die Dämmblöcke, die genannten Einheiten sowie die äusseren Abdecklagen können einfach durch um sie herumgeführte Bänder zusammengehalten werden. Da solche Bänder einfach anzubringen sind, kann das Zusammenfügen der Teile ggf. erst nach einer Lagerungs- oder Transportphase erfolgen, wobei dabei die kompakte Stapelbarkeit der genannten Einheiten zusätzlich von Vorteil ist.The Dämmblöcke, the units mentioned and the outer cover layers can be held together simply by guided around them bands. Since such bands are easy to install, the joining of the parts may possibly only after a storage or transport phase, in which case the compact stackability of said units is also advantageous.

Die Zugstäbe und die Druckstäbe können gleich dick und/oder gleich lang ausgebildet sein. Zudem ist es bevorzugt, das Fertigbauteil symmetrisch auszubilden. Das erleichtert seinen Einbau und vermeidet Einbaufehler durch eine falsche Orientierung.The tension rods and the pressure rods can be the same thickness and / or the same length. In addition, it is preferred to form the prefabricated component symmetrically. This facilitates its installation and avoids installation errors due to incorrect orientation.

Nachstehend werden Ausführungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnungen beschrieben.Hereinafter, embodiments of the invention will be described with reference to the drawings.

KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Es zeigen:

Fig. 1
perspektivisch ein erfindungsgemässes Fertigbauteil in einem Einbauzustand;
Fig. 2
einen Querschnitt (A-A) durch das Fertigbauteil von Fig. 1;
Fig. 3
einen entsprechenden Querschnitt durch eine bevorzugte Ausführungsform eines erfindungsgemässen Fertigbauteils; und
Fig. 4
perspektivisch einen Stirnseitenabschnitt der Versteifungsplatte der Ausführungsform von Fig. 3.
Show it:
Fig. 1
in perspective, a prefabricated component according to the invention in an installed state;
Fig. 2
a cross section (AA) through the prefabricated part of Fig. 1 ;
Fig. 3
a corresponding cross section through a preferred embodiment of a finished component according to the invention; and
Fig. 4
perspective view of a front side portion of the stiffening plate of the embodiment of Fig. 3 ,

Von mehreren gleichen Teilen ist in den Figuren jeweils nur eines mit einem Bezugszeichen versehen.Of several identical parts, only one is provided with a reference numeral in the figures.

WEGE ZUR AUSFÜHRUNG DER ERFINDUNGWAYS FOR CARRYING OUT THE INVENTION

Das Fertigbauteil von Fig. 1 ist in einer Fuge zwischen einer strichliert angedeuteten Kragplatte 1 aus Beton und einem ebenfalls strichliert angedeuteten Betonbauwerk 2 angeordnet. Bei der Kragplatte 1 kann es sich um eine Balkonplatte und bei dem Betonbauwerk 2 um eine Geschossdecke eines Gebäudes handeln.The prefabricated part of Fig. 1 is arranged in a joint between a dashed line indicated cantilever 1 made of concrete and also indicated by dashed lines concrete structure 2. The cantilever panel 1 may be a balcony slab and the concrete structure 2 may be a floor slab of a building.

Das Fertigbauteil weist einen länglichen Dämmkörper 3 auf, der von oberen Zugstäben 4 und von unteren Druckstäben 5 durchgriffen wird. Jeweils übereinander liegende Zug- 4 und Druckstäbe 5 sind paarweise miteinander verbunden durch Versteifungsplatten 6, indem beispielsweise die Zugstäbe 4 jeweils am oberen Rand und die Druckstäbe jeweils am unteren Rand der Versteifungsplatten 6 angeschweisst sind. Die Zugstäbe 4 und die Druckstäbe verlaufen parallel zueinander sowie parallel zur Oberseite und zur Unterseite zumindest der Betonkragplatte 1. Über den Dämmkörper 3 stehen sie beidseitig über, so dass sie mit ihren Enden in der Betonkragplatte 1 sowie dem Betonbauwerk 2 eingebettet sind. Die Verbindungsplatten 6 stehen ebenfalls beidseitig über den Dämmkörper 3 über und sind dadurch mit ihren Endanschnitten ebenfalls in der Betonkragplatte 1 sowie dem Betonbauwerk 2 eingebettet, wenn auch weniger tief.The prefabricated component has an elongate insulating body 3, which is penetrated by upper tension rods 4 and lower pressure rods 5. In each case superposed Zug- 4 and push rods 5 are connected in pairs by stiffening plates 6, for example, by the tie rods 4 are welded respectively at the upper edge and the pressure bars respectively at the bottom of the stiffening plates 6. The tension rods 4 and the pressure rods run parallel to each other and parallel to the top and bottom at least the concrete cantilever 1. About the insulating body 3 they are on both sides, so that they are embedded with their ends in the concrete cantilever 1 and the concrete structure 2. The connecting plates 6 are also on both sides on the insulating body 3 and over thereby embedded with their end cuts also in the concrete header 1 and the concrete structure 2, albeit less deeply.

Wie dies auch in den Fig. 2 - 4 zu erkennen ist, sind die in der Betonkragplatte 1 und dem Betonbauwerk 2 eingebetteten Stirnflächen 7 der Versteifungsplatten 6 schräg gegenüber den Zug- 4 und/oder den Druckstäben 5 ausgerichtet. In der dargestellten Ausführungsform wird dies durch die Ausbildung der Stirnflächen 7 mit jeweils vier Zacken erreicht. Andere schräge Ausbildungen sowie eine andere Anzahl Zacken sind jedoch ebenfalls möglich. Durch die schräge Ausbildung der Stirnflächen 7 können über diese Flächen die durch die Betonkragplatte 1 bewirkten Querkräfte aufgenommen und übertragen werden.Like in the Fig. 2-4 can be seen, the embedded in the concrete cantilever 1 and the concrete structure 2 end surfaces 7 of the stiffening plates 6 obliquely against the train 4 and / or the pressure bars 5 are aligned. In the illustrated embodiment, this is achieved by the formation of the end faces 7 with four prongs each. Other oblique training as well as a different number of teeth are also possible. Due to the oblique design of the end faces 7, the transverse forces caused by the concrete cantilever 1 can be absorbed and transmitted through these surfaces.

Die Zugstäbe 3 und die Druckstäbe 4 sind bevorzugt aus Betonrippenstahl, so dass ihre über den Dämmkörper überstehenden Enden durch eine ausreichende Verankerung im Beton kurz, in den meisten Fällen weniger als 50 cm lang bemessen sein können. Für die Versteifungsplatten 6 genügen Einbetttiefen genommen bis hin zu Spitzen der Zacken von 10 bis 30 mm.The tension rods 3 and the pressure rods 4 are preferably made of rebar, so that their over the insulating body protruding ends can be sized by a sufficient anchorage in the concrete short, in most cases less than 50 cm long. For the stiffening plates 6, embedment depths are sufficient up to tips of the teeth of 10 to 30 mm.

Die Versteifungsplatten 6 sind innerhalb des Dämmkörpers dünner als die Zugstäbe 4 und/oder die Druckstäbe 5, wobei eine Dicke von 3 bis 4 mm geeignet ist. Die Höhe der Versteifungsplatten 6 entspricht dem gegenseitigen Abstand der Zug- 4 und Druckstäbe 5, der sich wiederum nach den Massen insbesondere der Betonkragplatte 1 richtet.The stiffening plates 6 are thinner inside the insulating body than the tension bars 4 and / or the pressure bars 5, wherein a thickness of 3 to 4 mm is suitable. The height of the stiffening plates 6 corresponds to the mutual distance of the train 4 and push rods 5, which in turn depends on the masses, in particular the concrete cantilever 1.

Um die genannten Querkräfte wirksam aufnehmen und übertragen zu können, sollten die Versteifungsplatten 6 an ihren Stirnflächen 7 jedoch dicker, vorzugsweise 2 - 5 mal so dick wie innerhalb des Dämmkörpers 3 sein. Dies lässt sich einfach durch eine auf den Stirnflächen 7 jeweils befestigte Leiste aus Stahl erreichen, wie sie in Fig. 3 und Fig. 4 mit 8 bezeichnet ist. Die Leiste 8 kann einfach auf die Stirnflächen 7 aufgeschweisst sein. In Fig. 3 ist sie lediglich ihrer besseren Erkennbarkeit wegen mit etwas Abstand von den Stirnflächen 7 schematisch da rgestellt.In order to effectively absorb and transfer said lateral forces, however, the stiffening plates 6 should be thicker at their end faces 7, preferably 2 to 5 times as thick as inside the insulating body 3. This can be easily achieved by a respectively mounted on the end faces 7 bar of steel, as in FIG. 3 and FIG. 4 denoted by 8. The strip 8 may simply be welded onto the end faces 7. In Fig. 3 it is merely because of their better recognizability because with some distance from the end faces 7 schematically created there.

Da die Zug- 4 und die Druckstäbe 5 sowie die Versteifungsplatten 6 im Bereich des Dämmkörpers Feuchtigkeit ausgesetzt sein können, sind sie dort sowie mindestens noch innerhalb der Betonüberdeckungen der Betonkragplatte 1 und des Betonbauwerks 2 aus einem nichtrostenden Stahl.Since the tension 4 and the pressure bars 5 and the stiffening plates 6 may be exposed to moisture in the region of the insulating body, they are there and at least within the Betonüberdeckungen the concrete top plate 1 and the concrete structure 2 made of a stainless steel.

Im dargestellten Ausführungsbeispiel von Fig. 1 ist der Dämmkörper 3 mehrteilig ausgebildet mit mehreren Dämmblöcken 3.1 und zwei äusseren Abdecklagen 3.2 und 3.3, wobei die Dämmblöcke 3.1 zwischen jeweils zwei Einheiten aus miteinander verbundenen Zug- 4 und Druckstäben 5 sowie Versteifungsplatten 6 angeordnet sind. Die äusseren Abdecklagen 3.2 und 3.3 erstrecken sich demgegenüber entlang des gesamten Fertigbauteils durchgehend über alle Dämmblöcke 3.1 und die genannten Einheiten 4, 5, 6 hinweg. Auf einfache Weise sind die genannten Teile durch ein aussen um sie herum gespanntes Längsband 10 sowie durch mehrere Querbänder 11 zusammengehalten.In the illustrated embodiment of Fig. 1 the insulating body 3 is formed in several parts with several Dämmblöcken 3.1 and two outer cover layers 3.2 and 3.3, wherein the Dämmblöcke 3.1 are arranged between two units of interconnected train 4 and compression bars 5 and stiffening plates 6. The outer cover layers 3.2 and 3.3, in contrast, extend along the entire prefabricated component continuously over all the insulation blocks 3.1 and the said units 4, 5, 6 away. In a simple way, the said parts are held together by an outside around them stretched longitudinal belt 10 and by a plurality of transverse straps 11.

Die Zug- 4 und die Druckstäbe 5 sind im dargestellten Ausführungsbeispiel von Fig. 1 gleich dick und gleich lang, so dass das Fertigbauteil weitgehend symmetrisch ausgebildet ist und sowohl um eine Längs- als auch eine Querachse gedreht eingebaut werden kann.The Zug- 4 and the pressure bars 5 are in the illustrated embodiment of Fig. 1 the same thickness and the same length, so that the prefabricated component is largely symmetrical and can be installed both rotated about a longitudinal and a transverse axis.

BEZEICHNUNGSLISTENAME LIST

11
Kragplattecantilever plate
22
Betonbauwerkconcrete structure
33
Dämmkörperinsulating body
44
ZugstäbeTension rods
55
Druckstäbecompression bars
66
Versteifungsplattenstiffening plates
77
Stirnflächen der VersteifungsplattenEnd faces of the stiffening plates
88th
Leistestrip
3.13.1
DämmblöckeInsulating blocks
3.23.2
obere Abdecklageupper cover layer
3.33.3
untere Abdecklagelower cover layer
1010
Längsbandlongitudinal ligament
1111
Querbändertransverse bands

Claims (13)

Fertigbauteil zum Anschluss einer Betonkragplatte (1) an ein Betonbauwerk (2), mit: einem Dämmkörper (3) zur Anordnung in einer Fuge zwischen der Betonkragplatte (1) und dem Betonbauwerk (2), den Dämmkörper (3) durchgreifende, beidseitig über diesen zur Einbettung in der Betonkragplatte (1) und dem Betonbauwerk (2) überstehende Zugstäbe (4), Druckstäbe (5) und Versteifungsplatten (6) jeweils aus Stahl, wobei die Zugstäbe (4) und die Druckstäbe (5) über die Versteifungsplatten (6) paarweise miteinander verbunden sind, dadurch gekennzeichnet, dass Stirnflächen (7) der Versteifungsplatten (6) schräg gegenüber den Zug- (4) und/oder den Druckstäben (5) ausgerichtet sind. Prefabricated component for connecting a concrete cantilever panel (1) to a concrete structure (2), comprising: a Dämmkörper (3) for arrangement in a joint between the concrete skirting board (1) and the concrete structure (2), the insulating body (3) sweeping, on both sides over this for embedding in the concrete skirting board (1) and the concrete structure (2) projecting tie rods (4), pressure bars (5) and stiffening plates (6) each made of steel, wherein the tension rods (4) and the pressure rods (5) are connected in pairs via the reinforcing plates (6), characterized, that end faces (7) of the stiffening plates (6) are aligned obliquely with respect to the tension (4) and / or the pressure bars (5). Fertigbauteil nach Anspruch 1, dadurch gekennzeichnet, dass die Stirnflächen (7) der Versteifungsplatten (6) mit mehreren Zacken (8.1 - 8.4) versehen sind.Prefabricated component according to claim 1, characterized in that the end faces (7) of the stiffening plates (6) with a plurality of teeth (8.1 - 8.4) are provided. Fertigbauteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Versteifungsplatten (6) zumindest innerhalb des Dämmkörpers dünner als die Zug- (4) und/oder die Druckstäbe (5) sind.Prefabricated component according to claim 1 or 2, characterized in that the stiffening plates (6) at least within the insulating body thinner than the tension (4) and / or the pressure bars (5). Fertigbauteil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Versteifungsplatten (6) an ihren Stirnflächen (7) dicker als innerhalb des Dämmkörpers (3) sind.Prefabricated component according to one of claims 1 to 3, characterized in that the stiffening plates (6) at their end faces (7) are thicker than inside the insulating body (3). Fertigbauteil nach Anspruch 4, dadurch gekennzeichnet, dass die Versteifungsplatten (6) an ihren Stirnflächen (7) mindestens doppelt so dick, vorzugsweise 2 - 5 mal so dick, wie innerhalb des Dämmkörpers (3) sind.Prefabricated component according to claim 4, characterized in that the stiffening plates (6) at their end faces (7) are at least twice as thick, preferably 2 - 5 times as thick as inside the insulating body (3). Fertigbauteil nach Anspruch 4, dadurch gekennzeichnet, dass die Versteifungsplatten (6) an ihren Stirnflächen (7) durch eine darauf befestigte Leiste (9) aus Stahl dicker als innerhalb des Dämmkörpers (3) sind.Prefabricated component according to claim 4, characterized in that the stiffening plates (6) are thicker at their end faces (7) by a strip (9) made of steel fastened thereon than inside the insulating body (3). Fertigbauteil nach Anspruch 5, dadurch gekennzeichnet, dass die Versteifungsplatten (6) und die Leiste (9) miteinander verschweisst sind.Prefabricated component according to claim 5, characterized in that the stiffening plates (6) and the strip (9) are welded together. Fertigbauteil nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass die Versteifungsplatten (6) beidseitig über den Dämmkörper (3) maximal 30 mm, vorzugsweise 10 bis 20 mm, überstehen.Prefabricated component according to one of claims 1 - 6, characterized in that the stiffening plates (6) over both sides of the insulating body (3) a maximum of 30 mm, preferably 10 to 20 mm, survive. Fertigbauteil nach einem der Ansprüche 1 - 7, dadurch gekennzeichnet, dass der Dämmkörper (3) mehrteilig ausgebildet ist mit mehreren Dämmblöcken (3.1) und zwei äusseren Abdecklagen (3.2, 3.3), wobei die Dämmblöcke, zwischen jeweils zwei Einheiten aus miteinander verbundenen Zug- (4) und Druckstäben (5) sowie Versteifungsplatten (6) angeordnet sind und die äusseren Abdecklagen (3.2, 3.3) sich durchgehend über alle Dämmblöcke (3.1) und genannten Einheiten (4, 5, 6) erstecken.Prefabricated component according to one of claims 1-7, characterized in that the insulating body (3) is formed in several parts with a plurality of Dämmblöcken (3.1) and two outer cover layers (3.2, 3.3), wherein the Dämmblöcke, between each two units of interconnected Zug- (4) and compression bars (5) and stiffening plates (6) are arranged and the outer cover layers (3.2, 3.3) extend consistently over all Dämmblöcke (3.1) and said units (4, 5, 6). Fertigbauteil nach Anspruch 8, dadurch gekennzeichnet, dass die äusseren Abdecklagen (3.2, 3.3) aus einem härteren und bruchfesteren Material als die Dämmblöcke (3.1) bestehen.Prefabricated component according to claim 8, characterized in that the outer cover layers (3.2, 3.3) consist of a harder and more fracture resistant material than the insulating blocks (3.1). Fertigbauteil nach einem Ansprüche 8 oder 9, dadurch gekennzeichnet, dass die Dämmblöcke (3.1), die genannten Einheiten sowie die äusseren Abdecklagen (3.2, 3.3) durch Bänder zusammengehalten werden.Prefabricated component according to one of claims 8 or 9, characterized in that the Dämmblöcke (3.1), said units and the outer cover layers (3.2, 3.3) are held together by bands. Fertigbauteil nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dassdieZug-(4) die Druckstäbe (5) gleich dick und/oder gleich lang sind.Prefabricated component according to one of claims 1 to 10, characterized in that the tensile (4) the pressure bars (5) are the same thickness and / or the same length. Fertigbauteil nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass es symmetrisch ausgebildet ist.Prefabricated component according to one of claims 1 to 11, characterized in that it is formed symmetrically.
EP17198011.3A 2016-10-25 2017-10-24 Prefabricated element for connecting a concrete cantilever plate to a building structure Not-in-force EP3315678B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01425/16A CH713073A2 (en) 2016-10-25 2016-10-25 Prefabricated component for connecting a concrete cantilever to a concrete structure.

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EP3315678B1 EP3315678B1 (en) 2019-08-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3569783B1 (en) * 2018-05-18 2022-01-12 Schöck Bauteile GmbH Component for thermal insulation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436808A1 (en) * 1994-10-14 1996-05-02 Schaedler Felix Dipl Ing Balcony etc. connector element
FR2894264A1 (en) * 2005-12-06 2007-06-08 Armatures Assemblees Mure Soci Concrete walls e.g. face wall and slab, connecting element for construction `s thermal protector, has upper and lower bars connected by slant connecting crosspiece comprising fixation zones separated by width of thermal insulation joint
EP2055845A2 (en) 2007-11-02 2009-05-06 Debrunner Koenig Management AG Cantilever plate connecting element
DE102013111091A1 (en) 2012-10-14 2014-04-17 Betonwerk Oschatz GmbH Rectangular shaped high wall construction element, has shell surfaces distributed in concrete shells and attached with connecting bolt, where shell surfaces are faced above each other and concrete shells are arranged at edges of plates

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436808A1 (en) * 1994-10-14 1996-05-02 Schaedler Felix Dipl Ing Balcony etc. connector element
FR2894264A1 (en) * 2005-12-06 2007-06-08 Armatures Assemblees Mure Soci Concrete walls e.g. face wall and slab, connecting element for construction `s thermal protector, has upper and lower bars connected by slant connecting crosspiece comprising fixation zones separated by width of thermal insulation joint
EP2055845A2 (en) 2007-11-02 2009-05-06 Debrunner Koenig Management AG Cantilever plate connecting element
DE102013111091A1 (en) 2012-10-14 2014-04-17 Betonwerk Oschatz GmbH Rectangular shaped high wall construction element, has shell surfaces distributed in concrete shells and attached with connecting bolt, where shell surfaces are faced above each other and concrete shells are arranged at edges of plates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3569783B1 (en) * 2018-05-18 2022-01-12 Schöck Bauteile GmbH Component for thermal insulation

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CH713073A2 (en) 2018-04-30
EP3315678B1 (en) 2019-08-07

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