EP1712696B1 - Insulated prefabricated wall with pin shaped anchors - Google Patents

Insulated prefabricated wall with pin shaped anchors Download PDF

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Publication number
EP1712696B1
EP1712696B1 EP05016287A EP05016287A EP1712696B1 EP 1712696 B1 EP1712696 B1 EP 1712696B1 EP 05016287 A EP05016287 A EP 05016287A EP 05016287 A EP05016287 A EP 05016287A EP 1712696 B1 EP1712696 B1 EP 1712696B1
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EP
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Prior art keywords
wall
reinforcement
prefabricated
prefabricated wall
concrete
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EP05016287A
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German (de)
French (fr)
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EP1712696A1 (en
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Glatthaar Fertigkeller GmbH
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Glatthaar Fertigkeller GmbH
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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
    • E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • E04B1/161—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with vertical and horizontal slabs, both being partially cast in situ
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • 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
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
    • E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves

Definitions

  • the present invention relates to a prefabricated wall for the construction of buildings, with an inner wall and with an outer wall made of concrete, which are connected to each other via a reinforcement, and with a cavity between the two walls for subsequent pouring with concrete, wherein the inner wall facing side the outer wall has a thermal barrier coating.
  • a prefabricated wall for the construction of buildings with an inner wall and an outer wall of concrete is known, which are interconnected and with a cavity between the two walls for retrofitting with concrete, wherein the inner wall facing the inner wall of the outer wall has a thermal barrier coating and from the outer wall facing inside of the inner wall projecting a grid reinforcement, which extends through the cavity of the precast wall to the outer wall and the outer wall and the inner wall tensile strength interconnects.
  • the inner and / or the outer wall are connected via the lattice girders with at least one stiffening element for the removal of an acting bending load.
  • the present invention is therefore based on the object to propose a prefabricated wall, which has a reduced heat transfer between the inner and the outer wall by less thermal bridges and which is simple and inexpensive to produce.
  • the reinforcement connecting the inner wall and the outer wall of the prefabricated part wall according to the invention U-shaped composite needles made of steel, which are held with its web in the outer wall.
  • the precast wall has a lattice girder reinforcement, which projects from the inner wall facing the outer wall of the inner wall and extending in a cavity to be filled with in situ between the inner and the outer wall.
  • the composite needles are spaced apart in the concrete of the outer wall and embedded with their front ends in the concrete of the inner wall, wherein the front ends of the composite needles are wavy.
  • they are made of a stainless material such as V2A, V4A or hot-dip galvanized steel.
  • the lattice girder reinforcement of the precast wall is embedded in the concrete of the inner wall and may preferably extend in the cavity of the precast wall to the heat-insulating layer. It can be made of steel without corrosion protection.
  • the lattice girders of the lattice girder reinforcement are spaced apart over the length of the precast wall and arranged distributed from the lower end to the upper end of the precast wall. They do not penetrate the insulating layer of the outer wall and are not connected to the outer wall. This has the advantage that no heat transfer between the inner and the outer wall takes place via the lattice girders and thus the thermal insulation is improved.
  • the outer wall of the precast wall is stored for support on a foundation (concrete storage, mortar bed), since the outer wall is not sufficiently shear-resistant connected to the inner wall via the composite needles. This vertical loads can be initiated in the outer wall.
  • an uppermost composite needle row is arranged as connection reinforcement, the free ends of the composite needles projecting into the area of a joint with a ceiling element.
  • the wave-shaped ends of the composite needles complement the reinforcement of the resting on the inner wall ceiling element and connect after pouring the ceiling element with concrete the outer wall tensile strength with the ceiling element.
  • the illustrated in Figures 1 and 2 embodiment of the core-insulated precast wall 1 consists of two factory-made, spaced apart, connected by composite needles 2 made of stainless steel walls 3, 4. Between the outer wall 3 and the inner wall 4, a cavity 5 is formed, which is filled with in-situ concrete 19 at the construction site. On the inside 6 of the outer wall 3, a thermal barrier coating 8 of expanded polyurethane or polystyrene is applied.
  • the composite needles 2 are used in the construction state for receiving the horizontal forces from the fresh concrete pressure Ortbetonchollung 19 and in the final state for horizontal storage of the outer wall 3 on the inner wall 4.
  • the inner wall 4 and the Ortbetonkem 19 are shear-resistant interconnected by lattice girder 9.
  • the lattice girders 9 are factory embedded in the inner wall 4 and extend to the thermal barrier coating 8.
  • the lattice girders 9 extend from a lower end 10 to an upper end 11 of the precast wall 1 and are arranged at a distance of ⁇ 62.5 cm over the length of the inner wall 4.
  • the lattice girders 9 do not connect the outer wall 3 with the inner wall 4 of the precast wall 1 as in conventional prefabricated walls with core insulation and thus assume no stabilizing function for the outer wall 3 of the precast wall 1. Accordingly, the outer wall 3 is placed on a concrete warehouse 12, the on a Floor 13 is arranged.
  • transport anchors 14 are provided, which are connected to the outer wall 3 and the inner wall 4.
  • the transport anchors 14 form a shear-resistant connection between the inner wall 4 and the outer wall 3, which is effective only in the transport and mounting state and prevents mutual displacement of the walls 3, 4.
  • the transport anchors 14 can be poured into the in-situ concrete 19 when filling the cavity 5 of the precast wall 1.
  • the outer wall 3 is self-supporting and has a wall thickness of about 8 cm.
  • the inner wall 4 has a material thickness of about 6 cm in this construction.
  • the thermal barrier coating 8 is depending on the desired insulation 2 to 12 cm and the cavity 5 at least 10 cm, to ensure sufficient stability of the precast wall 1.
  • the composite needles 2 are evenly distributed over the surface of the precast wall 1 and arranged at a distance of about 50 to 60 cm from each other. They are U-shaped and have wave-shaped ends.
  • the composite needles 2 are embedded with their web in the outer wall 3 and with their wave-shaped ends in the inner wall 4 and penetrate the thermal barrier coating 8.
  • the composite needles 2 typically have a diameter of 5 mm.
  • 15 composite needles 2 with a diameter of 8 mm can be used for the lowest composite needle row.
  • an uppermost composite needle row 16 is provided as a connection reinforcement to a ceiling element 17.
  • the compound needles 2 of the topmost composite needle row 16 are cast with their web in the outer wall 4 and protrude with their free ends 18 in the region of a joint 20 with the ceiling element 17.
  • the composite needle row 16 is at the backfilling the ceiling element 17 cast with in-situ concrete 19 and connects the outer wall 3 with the ceiling element 17 tensile and shear resistant.
  • the prefabricated wall 1 described above is made such that after concreting the outer wall 3 on a metal plate or the like with simultaneous concreting of composite needles 2, the thermal barrier coating 8 is applied to the inside 6 of the outer wall 3 by foaming or inserting insulation boards. After curing of the foam or inserting the insulation boards of the thermal barrier coating 8, the hitherto completed part is rotated and introduced to produce the inner wall 4 with the protruding from the thermal barrier coating 8 free ends of composite needles 2 in a befindliches on a metal plate or the like concrete bed with it Lattice girders 9 dipped, shaken and then cured.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Finishing Walls (AREA)

Abstract

The outer wall (3) and the inner wall (4)are held together by U-shaped steel staples (2), held by its bridging section in the outer wall. The staples are made of rustproof V2A or V4A steel, or galvanized steel.

Description

Die vorliegende Erfindung betrifft eine Fertigteilwand für die Erstellung von Gebäuden, mit einer Innenwand und mit einer Außenwand aus Beton, die miteinander über eine Bewehrung verbunden sind, und mit einem Hohlraum zwischen den beiden Wänden zum nachträglichen Ausgießen mit Beton, wobei die zur Innenwand weisende Seite der Außenwand eine Wärmedämmschicht aufweist.The present invention relates to a prefabricated wall for the construction of buildings, with an inner wall and with an outer wall made of concrete, which are connected to each other via a reinforcement, and with a cavity between the two walls for subsequent pouring with concrete, wherein the inner wall facing side the outer wall has a thermal barrier coating.

Es ist bekannt, zur Herstellung von Gebäudewänden sowohl im Keller- als auch im Wohnbereich Doppelwandelemente einzusetzen, deren Außenwände mit den Innenwänden über Gitterträger miteinander verbunden sind und die eine Kerndämmung aus Dämmplatten oder aufgebrachten Dämmmaterial aufweisen. Der Vorteil dieser Fertigteilwände besteht darin, dass sie im Werk in transportfähigen Teilen wetterunabhängig hergestellt werden können. Derartige Fertigteilwände sind maßgenau herstellbar und werden auf der Baustelle montiert und mittels Beton oder dergleichen fugenlos ausgegossen.It is known to use for the production of building walls both in the basement and in the living area double wall elements whose outer walls are connected to the inner walls of lattice girders and which have a core insulation of insulation boards or applied insulation. The advantage of these prefabricated walls is that they can be manufactured in the factory in transportable parts regardless of the weather. Such prefabricated walls are dimensionally accurate to produce and are mounted on the site and poured seamless by means of concrete or the like.

Aus der DE 102 17 727 A die den Stand der Technik darstellt, ist eine Fertigteilwand für die Erstellung von Gebäuden mit einer Innenwand und einer Außenwand aus Beton bekannt, die miteinander verbunden sind und mit einem Hohlraum zwischen den beiden Wänden zum nachträglichen Ausgießen mit Beton, wobei die zur Innenwand weisende Innenseite der Außenwand eine Wärmedämmschicht aufweist und aus der zur Außenwand weisenden Innenseite der Innenwand eine Gitterbewehrung vorsteht, die sich durch den Hohlraum der Fertigteilwand bis in die Außenwand erstreckt und die Außenwand und die Innenwand zugfest miteinander verbindet. Die Innen- und/oder die Außenwand sind über die Gitterträger hinaus mit wenigstens einem Versteifungselement zur Abtragung einer einwirkenden Biegelast verbunden.DE 102 17 727 A which represents the prior art, a prefabricated wall for the construction of buildings with an inner wall and an outer wall of concrete is known, which are interconnected and with a cavity between the two walls for retrofitting with concrete, wherein the inner wall facing the inner wall of the outer wall has a thermal barrier coating and from the outer wall facing inside of the inner wall projecting a grid reinforcement, which extends through the cavity of the precast wall to the outer wall and the outer wall and the inner wall tensile strength interconnects. The inner and / or the outer wall are connected via the lattice girders with at least one stiffening element for the removal of an acting bending load.

In der DE 198 23 387 C2 ist eine weitere Fertigteilwand beschrieben, bei der die Verbindung der Außenwand mit der Innenwand über mit Abstand zueinander angeordnete Gitterträger erfolgt. Zur Wärmedämmung ist auf der Innenseite der Außenwand eine poröse Isolierschicht aus einem Polyurethanschaum in einer oder mehreren Lagen aufgebracht. Um zu vermeiden, dass durch die damit verbundene Luftfeuchtigkeit die Gitterträger im Laufe der Zeit durchrosten, sind diese aus nicht rostendem Material ausgebildet. Ein Nachteil derartig ausgeführter Fertigteilelemente besteht darin, dass durch die Gitterträger massive Wärmebrücken zwischen der Innenwand und der Außenwand gebildet werden, die einen starken Wärmedurchgang ermöglichen.In DE 198 23 387 C2 a further prefabricated wall is described in which the connection of the outer wall with the inner wall via spaced apart lattice girder takes place. For thermal insulation, a porous insulating layer of a polyurethane foam in one or more layers is applied on the inside of the outer wall. To avoid that by the associated humidity the lattice girders in Rusted over time, these are made of stainless material. A disadvantage of such finished precast elements is that massive thermal bridges between the inner wall and the outer wall are formed by the lattice girders, which allow a strong heat transfer.

Der vorliegenden Erfindung liegt daher die Aufgabe zu Grunde, eine Fertigteilwand vorzuschlagen, die einen reduzierten Wärmedurchgang zwischen der Innen- und der Außenwand durch weniger Wärmebrücken aufweist und die einfach und kostengünstig herstellbar ist.The present invention is therefore based on the object to propose a prefabricated wall, which has a reduced heat transfer between the inner and the outer wall by less thermal bridges and which is simple and inexpensive to produce.

Diese Aufgabe wird erfindungsgemäß durch eine Fertigteilwand mit den Merkmalen des Anspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen sind den Unteransprüchen zu entnehmen.This object is achieved by a prefabricated wall with the features of claim 1. Further advantageous embodiments can be found in the dependent claims.

Danach weist die die Innenwand und die Außenwand verbindende Bewehrung der erfindungsgemäßen Fertigteilwand U-förmige Verbundnadeln aus Stahl auf, die mit ihrem Steg in der Außenwand gehalten sind. Außerdem weist die Fertigteilwand eine Gitterträgerbewehrung auf, die aus der zur Außenwand weisenden Innenseite der Innenwand vorsteht und sich in einem mit Ortbeton zu füllenden Hohlraum zwischen der Innen- und der Außenwand erstreckt.Thereafter, the reinforcement connecting the inner wall and the outer wall of the prefabricated part wall according to the invention U-shaped composite needles made of steel, which are held with its web in the outer wall. In addition, the precast wall has a lattice girder reinforcement, which projects from the inner wall facing the outer wall of the inner wall and extending in a cavity to be filled with in situ between the inner and the outer wall.

Die Verbundnadeln sind im Abstand zueinander im Beton der Außenwand angeordnet und mit ihren vorderen Enden im Beton der Innenwand eingebettet, wobei die vorderen Enden der Verbundnadeln wellenförmig ausgeführt sind. Um zu verhindern, dass die Verbundnadeln im Laufe der Zeit durchrosten, sind diese aus einem nicht rostenden Material wie V2A, V4A oder feuerverzinktem Stahl hergestellt.The composite needles are spaced apart in the concrete of the outer wall and embedded with their front ends in the concrete of the inner wall, wherein the front ends of the composite needles are wavy. In order to prevent the composite needles from rusting over time, they are made of a stainless material such as V2A, V4A or hot-dip galvanized steel.

Die Gitterträgerbewehrung der Fertigteilwand ist in dem Beton der Innenwand eingebettet und kann sich im Hohlraum der Fertigteilwand vorzugsweise bis zur Wärmedämmschicht hin erstrecken. Sie kann aus Stahl ohne Korrosionsschutz bestehen. Die Gitterträger der Gitterträgerbewehrung sind voneinander beabstandet über die Länge der Fertigteilwand verteilt angeordnet und verlaufen vom unteren Ende zum oberen Ende der Fertigteilwand. Sie durchdringen die Isolierschicht der Außenwand nicht und sind nicht mit der Außenwand verbunden. Dies hat den Vorteil, dass über die Gitterträger keine Wärmeübertragung zwischen der Innen- und der Außenwand erfolgt und somit die Wärmedämmung verbessert ist. Die Außenwand der Fertigteilwand ist zur Abstützung auf einem Fundament (Betonlager, Mörtelbett) gelagert, da die Außenwand mit der Innenwand über die Verbundnadeln nicht ausreichend schubfest verbunden ist. Damit können Vertikallasten in der Außenwand eingeleitet werden.The lattice girder reinforcement of the precast wall is embedded in the concrete of the inner wall and may preferably extend in the cavity of the precast wall to the heat-insulating layer. It can be made of steel without corrosion protection. The lattice girders of the lattice girder reinforcement are spaced apart over the length of the precast wall and arranged distributed from the lower end to the upper end of the precast wall. They do not penetrate the insulating layer of the outer wall and are not connected to the outer wall. This has the advantage that no heat transfer between the inner and the outer wall takes place via the lattice girders and thus the thermal insulation is improved. The outer wall of the precast wall is stored for support on a foundation (concrete storage, mortar bed), since the outer wall is not sufficiently shear-resistant connected to the inner wall via the composite needles. This vertical loads can be initiated in the outer wall.

Vorzugsweise ist am oberen Ende der Außenwand eine oberste Verbundnadelreihe als Anschlussbewehrung angeordnet, wobei die freie Enden der Verbundnadeln in den Bereich einer Stoßstelle mit einem Deckenelement hineinragen. Die wellenförmigen Enden der Verbundnadeln ergänzen die Bewehrung des auf der Innenwand aufliegenden Deckenelements und verbinden nach dem Ausgießen des Deckenelements mit Beton die Außenwand zugfest mit dem Deckenelement.Preferably, at the upper end of the outer wall, an uppermost composite needle row is arranged as connection reinforcement, the free ends of the composite needles projecting into the area of a joint with a ceiling element. The wave-shaped ends of the composite needles complement the reinforcement of the resting on the inner wall ceiling element and connect after pouring the ceiling element with concrete the outer wall tensile strength with the ceiling element.

Nachfolgend wird die Erfindung anhand eines in der begleitenden Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es stellen dar:

Figur 1
eine schematische Schnittdarstellung der erfindungsgemäßen Fertigteilwand; und
Figur 2
eine Seitenansicht der in Figur 1 dargestellten Fertigteilwand in schematischer Darstellung.
The invention will be explained in more detail with reference to an embodiment shown in the accompanying drawings. They show:
FIG. 1
a schematic sectional view of the precast wall according to the invention; and
FIG. 2
a side view of the finished part wall shown in Figure 1 in a schematic representation.

Die in den Figuren 1 und 2 dargestellte Ausführungsbeispiel der erfindungsgemäßen kerngedämmten Fertigteilwand 1 besteht aus zwei werksmäßig hergestellten, voneinander beabstandeten, durch Verbundnadeln 2 aus nicht rostendem Stahl verbundenen Wänden 3, 4. Zwischen der Außenwand 3 und der Innenwand 4 ist ein Hohlraum 5 gebildet, der auf der Baustelle mit Ortbeton 19 verfüllt wird. An der Innenseite 6 der Außenwand 3 ist eine Wärmedämmschicht 8 aus expandiertem Polyurethan oder Polystyrol aufgebracht. Die Verbundnadeln 2 dienen im Bauzustand zur Aufnahme der Horizontalkräfte aus dem Frischbetondruck der Ortbetonfüllung 19 und im Endzustand zur Horizontallagerung der Außenwand 3 an der Innenwand 4. Die Innenwand 4 und der Ortbetonkem 19 werden durch Gitterträger 9 schubfest miteinander verbunden. Die Gitterträger 9 sind werksmäßig in die Innenwand 4 eingebettet und erstrecken sich bis zur Wärmedämmschicht 8. Die Gitterträger 9 verlaufen von einem unteren Ende 10 zu einem oberen Ende 11 der Fertigteilwand 1 und sind in einem Abstand von ≤62,5 cm über die Länge der Innenwand 4 angeordnet. Die Gitterträger 9 verbinden jedoch nicht wie bei herkömmlichen Fertigteilwänden mit Kerndämmung die Außenwand 3 mit der Innenwand 4 der Fertigteilwand 1 und übernehmen damit keine stabilisierende Funktion für die Außenwand 3 der Fertigteilwand 1. Demzufolge ist die Außenwand 3 auf einem Betonlager 12 aufgesetzt, das auf einem Boden 13 angeordnet ist. Am oberen Ende 11 der Fertigteilwand 1 sind Transportanker 14 vorgesehen, die mit der Außenwand 3 und mit der Innenwand 4 verbunden sind. Die Transportanker 14 bilden eine schubfeste Verbindung zwischen der Innenwand 4 und der Außenwand 3, die nur im Transport- und Montagezustand wirksam ist und eine gegenseitige Verschiebung der Wände 3, 4 verhindert. Die Transportanker 14 können beim Verfüllen des Hohlraums 5 der Fertigteilwand 1 mit in den Ortbeton 19 eingegossen werden. Die Außenwand 3 ist selbsttragend und weist eine Wandstärke von etwa 8 cm auf. Die Innenwand 4 weist bei diesem Aufbau eine Materialstärke von etwa 6 cm auf. Die Wärmedämmschicht 8 beträgt je nach gewünschter Isolierung 2 bis 12 cm und der Hohlraum 5 mindestens 10 cm, um eine ausreichende Stabilität der Fertigteilwand 1 zu gewährleisten. Die Verbundnadeln 2 sind gleichmäßig über die Fläche der Fertigteilwand 1 verteilt und in einem Abstand von ca. 50 bis 60 cm zueinander angeordnet. Sie sind U-förmig ausgebildet und weisen wellenförmige Enden auf. Die Verbundnadeln 2 sind mit ihrem Steg in der Außenwand 3 und mit ihren wellenförmigen Enden in der Innenwand 4 eingebettet und durchdringen die Wärmedämmschicht 8. Die Verbundnadeln 2 weisen typischerweise einen Durchmesser von 5 mm auf. Zur Stabilisierung der Fertigteilwand 1 können für die unterste Verbundnadelreihe 15 Verbundnadeln 2 mit einem Durchmesser von 8 mm verwendet werden. Am oberen Ende 11 der Fertigteilwand 1 ist eine oberste Verbundnadelreihe 16 als Anschlussbewehrung zu einem Deckenelement 17 vorgesehen. Die Verbundnadeln 2 der obersten Verbundnadelreihe 16 sind mit ihrem Steg in die Außenwand 4 eingegossen und ragen mit ihren freien Enden 18 in den Bereich einer Stoßstelle 20 mit dem Deckenelement 17. Die Verbundnadelreihe 16 wird beim Verfüllen des Deckenelements 17 mit Ortbeton 19 eingegossen und verbindet die Außenwand 3 mit dem Deckenelement 17 zug- und schubfest.The illustrated in Figures 1 and 2 embodiment of the core-insulated precast wall 1 according to the invention consists of two factory-made, spaced apart, connected by composite needles 2 made of stainless steel walls 3, 4. Between the outer wall 3 and the inner wall 4, a cavity 5 is formed, which is filled with in-situ concrete 19 at the construction site. On the inside 6 of the outer wall 3, a thermal barrier coating 8 of expanded polyurethane or polystyrene is applied. The composite needles 2 are used in the construction state for receiving the horizontal forces from the fresh concrete pressure Ortbetonfüllung 19 and in the final state for horizontal storage of the outer wall 3 on the inner wall 4. The inner wall 4 and the Ortbetonkem 19 are shear-resistant interconnected by lattice girder 9. The lattice girders 9 are factory embedded in the inner wall 4 and extend to the thermal barrier coating 8. The lattice girders 9 extend from a lower end 10 to an upper end 11 of the precast wall 1 and are arranged at a distance of ≤62.5 cm over the length of the inner wall 4. However, the lattice girders 9 do not connect the outer wall 3 with the inner wall 4 of the precast wall 1 as in conventional prefabricated walls with core insulation and thus assume no stabilizing function for the outer wall 3 of the precast wall 1. Accordingly, the outer wall 3 is placed on a concrete warehouse 12, the on a Floor 13 is arranged. At the upper end 11 of the precast wall 1 transport anchors 14 are provided, which are connected to the outer wall 3 and the inner wall 4. The transport anchors 14 form a shear-resistant connection between the inner wall 4 and the outer wall 3, which is effective only in the transport and mounting state and prevents mutual displacement of the walls 3, 4. The transport anchors 14 can be poured into the in-situ concrete 19 when filling the cavity 5 of the precast wall 1. The outer wall 3 is self-supporting and has a wall thickness of about 8 cm. The inner wall 4 has a material thickness of about 6 cm in this construction. The thermal barrier coating 8 is depending on the desired insulation 2 to 12 cm and the cavity 5 at least 10 cm, to ensure sufficient stability of the precast wall 1. The composite needles 2 are evenly distributed over the surface of the precast wall 1 and arranged at a distance of about 50 to 60 cm from each other. They are U-shaped and have wave-shaped ends. The composite needles 2 are embedded with their web in the outer wall 3 and with their wave-shaped ends in the inner wall 4 and penetrate the thermal barrier coating 8. The composite needles 2 typically have a diameter of 5 mm. To stabilize the prefabricated wall 1, 15 composite needles 2 with a diameter of 8 mm can be used for the lowest composite needle row. At the upper end 11 of the precast wall 1, an uppermost composite needle row 16 is provided as a connection reinforcement to a ceiling element 17. The compound needles 2 of the topmost composite needle row 16 are cast with their web in the outer wall 4 and protrude with their free ends 18 in the region of a joint 20 with the ceiling element 17. The composite needle row 16 is at the backfilling the ceiling element 17 cast with in-situ concrete 19 and connects the outer wall 3 with the ceiling element 17 tensile and shear resistant.

Die Herstellung der vorstehend beschriebenen Fertigteilwand 1 erfolgt derart, dass nach dem Betonieren der Außenwand 3 auf einer Metallplatte oder dergleichen bei gleichzeitigem Einbetonieren von Verbundnadeln 2 die Wärmedämmschicht 8 auf der Innenseite 6 der Außenwand 3 durch Aufschäumen oder Einlegen von Dämmplatten aufgebracht wird. Nach dem Aushärten des Schaumes bzw. Einlegen der Dämmplatten der Wärmedämmschicht 8 wird das bis dahin fertiggestellte Teil gedreht und zur Herstellung der Innenwand 4 mit den aus der Wärmedämmschicht 8 herausragenden freien Enden der Verbundnadeln 2 in ein auf einer Metallplatte oder dergleichen befindliches Betonbett mit darin eingebrachten Gitterträgem 9 eingetaucht, eingerüttelt und anschließend ausgehärtet. Das Betonieren der Außenwand 3 und der Innenwand 4 auf einer Metallplatte oder dergleichen zwecks späterer Ablösung erfolgt in bewährter Art und Weise und sichert dadurch sowohl eine glatte Außenfläche der Außenwand 3 als auch der Innenwand 4, die eine besondere Nacharbeit zur Erreichung der Plattenoberfläche nicht erforderlich machen.The prefabricated wall 1 described above is made such that after concreting the outer wall 3 on a metal plate or the like with simultaneous concreting of composite needles 2, the thermal barrier coating 8 is applied to the inside 6 of the outer wall 3 by foaming or inserting insulation boards. After curing of the foam or inserting the insulation boards of the thermal barrier coating 8, the hitherto completed part is rotated and introduced to produce the inner wall 4 with the protruding from the thermal barrier coating 8 free ends of composite needles 2 in a befindliches on a metal plate or the like concrete bed with it Lattice girders 9 dipped, shaken and then cured. The concreting of the outer wall 3 and the inner wall 4 on a metal plate or the like for subsequent detachment takes place in a proven manner and thereby ensures both a smooth outer surface of the outer wall 3 and the inner wall 4, which do not require a special reworking to achieve the plate surface ,

Claims (6)

  1. Prefabricated wall (1) for the construction of buildings where an inner wall (4) and an outer wall (3), are produced from concrete, are interconnected by means of a reinforcement (2) and have a cavity (5) between the two walls (3, 4) for subsequent filling with concrete (19), wherein the inside (6) of the outer wall (3) that faces the inner wall (4) includes a heat insulating layer (8), characterised in that the reinforcement (2) that connects the outer wall (3) and the inner wall (4) includes U-shaped anchors, which are made of steel and are retained by their web in the outer wall (3), and a lattice girder reinforcement (9), which extends into the cavity (5), protrudes out of the inside (7) of the inner wall (4) that faces the outer wall (3).
  2. Prefabricated wall according to claim 1, characterised in that the lattice girder reinforcement (9) extends in the cavity (5) as far as the heat insulating layer (8).
  3. Prefabricated wall according to claim 1, characterised in that a topmost row of anchors (16) is disposed at the upper end (11) of the outer wall (3) in the form of connection reinforcement, the free ends (18) of which extend inwards into the region of a position of impact (20) with a ceiling element (17), the said row of anchors being connectable to the ceiling element (17).
  4. Prefabricated wall according to one of the preceding claims, characterised in that the outer wall (3) of the prefabricated wall (1) is mounted on a foundation (12).
  5. Prefabricated wall according to one of the preceding claims, characterised in that the anchors (2) are produced from rust-resistant material such as V2A, V4A or hot-dip galvanised steel.
  6. Prefabricated wall according to one of the preceding claims, characterised in that the latter girder reinforcement (9) is produced from steel with no corrosion protection.
EP05016287A 2005-04-12 2005-07-27 Insulated prefabricated wall with pin shaped anchors Not-in-force EP1712696B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05016287T PL1712696T3 (en) 2005-04-12 2005-07-27 Insulated prefabricated wall with pin shaped anchors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520005924 DE202005005924U1 (en) 2005-04-12 2005-04-12 Core insulated prefabricated wall with composite needles

Publications (2)

Publication Number Publication Date
EP1712696A1 EP1712696A1 (en) 2006-10-18
EP1712696B1 true EP1712696B1 (en) 2007-04-11

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US (1) US20090120026A1 (en)
EP (1) EP1712696B1 (en)
AT (1) ATE359413T1 (en)
DE (3) DE202005005924U1 (en)
DK (1) DK1712696T3 (en)
ES (1) ES2285612T3 (en)
PL (1) PL1712696T3 (en)
WO (1) WO2006108385A1 (en)

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DE102007004573B4 (en) * 2007-01-24 2020-08-06 Construction Systems Marketing Ltd. Wall component and method for producing a wall component
EP2122075B1 (en) * 2007-02-10 2014-12-31 Kappema Fertigteilindustrie GmbH Constructional element comprising inner formwork
CN102477770A (en) * 2010-11-25 2012-05-30 欧文斯科宁知识产权资产有限公司 Structural member for concrete slabs and construction method for pouring concrete slabs
CN102477778B (en) 2010-11-25 2014-07-09 欧文斯科宁知识产权资产有限公司 Prefabricated heat-retaining composite plate and assembly, prefabricating method and mould profile thereof as well as template and concrete slab comprising composite plate
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EP2767373A1 (en) * 2013-02-15 2014-08-20 Bayer MaterialScience AG Method for producing a multilayer, reinforced concrete element
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Also Published As

Publication number Publication date
DE112006001568A5 (en) 2008-04-03
ATE359413T1 (en) 2007-05-15
PL1712696T3 (en) 2007-09-28
EP1712696A1 (en) 2006-10-18
DK1712696T3 (en) 2007-08-06
WO2006108385A1 (en) 2006-10-19
DE202005005924U1 (en) 2005-06-30
DE502005000589D1 (en) 2007-05-24
US20090120026A1 (en) 2009-05-14
ES2285612T3 (en) 2007-11-16

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