DE10324760A1 - Wall component used in the building industry comprises concrete layers with an insulating layer assigned to one of the concrete layers, and connecting elements - Google Patents

Abstract

Wall component (1) comprises concrete layers (2, 3) with an insulating layer (4) assigned to one of the concrete layers, and connecting elements (7, 8) one of which extends from one concrete layer through the insulating layer into an intermediate chamber (5). An independent claim is also included for a process for the production of a wall component.

Description

The The present invention relates to a wall component. The wall element comprises two spaced-apart concrete layers, an insulating layer and a plurality of connecting elements connecting the two concrete layers. The insulating layer is assigned to one of the two concrete layers, between the damp course and the other concrete layer for filling with in-situ concrete a gap is provided. The connecting elements extend from the a concrete layer through the insulating layer and through the gap to the other concrete layer. Furthermore The present invention relates to a process for the preparation a wall component and a connecting means for a wall component.

wall components of the type mentioned are known from practice and will currently mainly as room-closing Components used in commercial buildings. They are characterized by high Weathering and aging resistance as well as numerous possibilities for creative design. Such a wall element can for example, produced in a factory and to a construction site be transported. There you can several elements quasi pre-assembled next to each other and be connected by that in the interspace In situ concrete is introduced. This allows wall constructions considerably faster and cheaper accomplished become. This is not the only reason why multi-layered wall components are required also in residential construction an economical alternative to the usual Masonry structures dar.

Only by way of example is on the DE 100 07 100 A1 referred to, from which a wall / ceiling component is known, which has a first concrete layer to which an insulating layer is attached directly. Furthermore, a second concrete layer is provided, which is arranged at a distance from the insulating layer. The two concrete layers are held together by fasteners, the fasteners extending from the first concrete layer through the insulation layer to the second concrete layer. As connecting elements so-called lattice girders are used, which are arranged serpentine between the two concrete layers. In constructions of this type is usually a deformation of the first concrete layer against the second concrete layer by the lattice girders, which cause a rigid connection between the two concrete layers, prevented, which can lead to significant constraints.

From the US Pat. No. 6,263,638 B1 a wall element is known, in which the connecting elements are designed in the form of anchor elements made of glass fiber reinforced plastic. These connecting means are arranged distributed uniformly over the entire wall component, so that the two concrete layers are held together by flexible connecting means. As a result, the just-mentioned constraining stress is effectively prevented and a deformation between the two concrete layers is possible, at least within certain limits.

The concrete layer, which is assigned to the insulating layer, is usually arranged on the outside of a building overall and it has no supporting function. For removal of building loads or for building restraint only the Ortbetonergänzung in conjunction with the second concrete layer, which is located on the inside of the building, used. However, at the time of the US Pat. No. 6,263,638 B1 known wall construction the risk that the outer concrete layer due to tensile / compressive loads due to wind and temperature gradient as well as a shear stress due to their own weight from the insulation layer or Ortbetonschicht could flake off. This danger can be counteracted by a denser arrangement of the connecting means, which, however, does not do justice to building regulations. However, a denser arrangement of the connecting means leads to an increased cost in the production.

Of the The present invention is therefore based on the object, a wall component specify the type mentioned and further, on the one hand complies with the building regulations and on the other hand a ensures stable construction for years to come. Still lies The present invention has the object, a method for Production of a wall component and a connecting means for a wall component specify with which a wall component produced or suitable for this purpose which is the one listed above Disadvantages not.

The Wall element according to the invention of the type mentioned above triggers the above object by the features of the claim 1. Thereafter, such a wall element is characterized that at least one connecting means is provided, which differs from a concrete layer optionally through the insulating layer only extends into the gap.

According to the invention it has first been recognized that both the one and the other concrete layer with the intermediate space, which is provided for filling with cast-in-situ concrete, can be connected indirectly directly with additional connecting means or through the insulating layer, which considerably improves the static properties of the wall element , So is due at first to the connecting elements, such as those from the US Pat. No. 6,263,638 B1 are known, a flexible connection between the two concrete layers before. There are therefore - within certain limits - deformations between the two concrete layers possible, so that this tensile stresses are largely avoided. In the case of a wall construction filled with in-situ concrete, an improved connection between the in-situ concrete layer with the concrete layers is additionally provided on account of the connecting means. As a result, the connecting elements no longer have to be arranged so tightly, whereby a cost savings can be achieved in this regard. Ultimately, the cost of a connecting means are less than that of a connecting element, since the latter must also accommodate transport loads and must be designed to be stable. Due to the improved connection of the layers with each other, the building regulations are also met, so that the wall element according to the invention can be used in an advantageous manner in housing. The wall component in the sense of the present invention can also be used for a ceiling or floor construction.

The connecting elements are preferably formed substantially rod-shaped or anchor-shaped, such as those from the US Pat. No. 6,263,638 B1 known fasteners.

Prefers the connecting means protrude from a concrete layer, if necessary from the insulating layer, up to half the width of the gap. This allows the provided width of the space are adhered to during wall mounting, without the connecting means of the opposite sides together bump and thus an approximation the wall parts to the desired Prevent dimension.

To the wall components used in housing construction increased demands are made in terms of thermal protection. In this context, the effect of thermal bridges in exterior wall surfaces is also becoming increasingly important. The from the DE 100 07 100 A1 known fasteners are made of either stainless steel or non-corrosion resistant black steel.

Since these fasteners extend from the outer layer to the inner concrete layer, thermal bridges are automatically formed thereby, resulting in poorer thermal insulation. By the from the US Pat. No. 6,263,638 B1 known connecting means made of glass fiber reinforced plastic no thermal bridges are formed, so that in this way a significantly improved thermal insulation compared to that of DE 100 07 100 A1 known wall / ceiling component is achieved. The thermal conductivity of lattice girders made of stainless steel is approximately 17 W / (mK), for reinforcing steel approximately 50 W / (mK). The thermal conductivity of the glass fiber reinforced plastic connectors from the US Pat. No. 6,263,638 B1 is only 0.5 W / (mK), which corresponds to a negligible thermal conductivity compared to that of the reinforcing steel.

Therefore is provided in a very particularly preferred embodiment that the connecting elements and / or the connecting means a middle to low thermal conductivity respectively. this could be achieved by an appropriate choice of material, if, for example the connecting elements and / or the connecting means made of fiber-reinforced plastic are made. Since the bonding agent is a concrete layer extend only into the gap, so not the one Concrete layer with the other concrete layer connect, wear the Connecting means not to a thermal bridge at. In that regard is in particular advantageously a stable wall construction to produce the about that In addition, very good heat insulating Features. Furthermore, the connecting means could a high corrosion resistance respectively. In particular, this applies to the connecting means, which are arranged in the concrete layer, which is the insulating layer is assigned or in the outer concrete layer of the wall component according to the invention are arranged.

Concretely, the connecting means could comprise a component which has a substantially W-shaped, S-shaped, H-shaped, double-T-shaped or Z-shaped cross section. Here, the component is arranged relative to a concrete layer such that it is arranged with its one side in the concrete layer and with its other side in the intermediate space. Thus, the two parallel sections of a Z-shaped component could be aligned parallel to the surface of the concrete layer. Preferably, the connecting means comprises a composite anchor, as it is known from DE 201 17 798 U1 is known. With this support anchor preferably the outer concrete layer is connected to the in-situ concrete layer.

Furthermore, the connecting means could comprise a lattice girder. This could, for example a spacer also commercially available with the name "Dista" from the company Reuss GmbH & Co. KG, 42277 Wuppertal.The lattice girder could be arranged on a concrete layer, for example, lattice-shaped, looped or wavy, the arrangement could take place with respect to a plane Preferably, the inner concrete layer is connected to the in-situ concrete layer by means of lattice girders, whereby the inner concrete layer connected by lattice girders in conjunction with the in-situ concrete layer also serves to remove structural loads and / or to restrain the building Connection is a shear-resistant connection of the two layers, but the lattice girders are not subject to any stresses in the transport state or in the production of in-situ concrete, in contrast to those with conventional prefabricated partitions take the lattice girders only in the event of a necessary kink protection of the inside finished shell at vertical load, for example, as a result of the Auflagerung of beams and ceiling panels.

In order to better anchor the layers to be joined together or to further stabilize the overall construction, a reinforcement is provided in a preferred embodiment, which is arranged in the intermediate space or in the respective concrete layer. Merely by way of example is on the DE 198 05 571 A1 which, taken separately, also provides a grid of reinforcement in a concrete layer. The reinforcement is connected to the component or with the connecting means at least one point. The reinforcement could comprise at least one bracing element. As a bracing element could serve, for example, a rod-shaped steel piece, several probation struts or a steel concrete grid. For example, probation struts could pass through the holes made in a composite anchor according to the DE 201 17 798 U1 are provided. Alternatively, each hooked end of this support anchor could be hung in a probation strut.

In a particularly preferred embodiment The connecting means essentially comprises a plate construction. The plate construction is in this case substantially perpendicular to surface the concrete layer introduced into the wall component. For improvement and the connection between a concrete layer and the in-situ concrete layer could have the plate construction projecting from their surface Verstrebungsstücke. For example, could protrude four struts on each side of the panel construction, two of them in the concrete layer and the other two in the concrete layer In-situ concrete layer are arranged. Preferably, the braces protrude substantially perpendicular to the surface the plate construction from.

The Plate construction could also two, substantially parallel arranged square, rectangular, circular or rounded plates connectable to at least one rod-shaped connector are. This embodiment the plate construction has in the side view substantially an H-shape. Also here could from the plates bracing pieces protrude.

to further improvement of the connection between a concrete layer and the in-situ concrete layer could the bracing pieces at her surface the plate construction facing away from a thickening or a essentially spherical shaped tail respectively.

In In a very particularly preferred embodiment, the connecting elements comprise and / or the connecting means plastic with unidirectional or multidirectional arranged fibers, which in particular glass, basalt or carbon fibers, preferably comprise boron-free silicate glass fibers, wherein the plastic in particular polyester, vinyl ester or polyurethane. This Materials have a high tensile strength and are therefore for this Application very suitable. When choosing a material for the fasteners and / or the connecting means is to be considered that these against Moisture and / or environments with a high pH are resistant. In particular, the low thermal conductivity of these materials is Of particular advantage, since this wall construction has no thermal bridges and a very high insulation effect is possible.

The damp course could have a Polystyrene hard foam. Usually one is off Polystyrene rigid foam existing insulation layer by extrusion produced.

In procedurally The object mentioned above by the features of the claim 15 solved. This manufacturing process is based on the production of wall components matched with a turning table. Here, the part of the Wall element turned in the production and almost congruent approximated and connected to the other part of the wall component. This production method is thus suitable for a production in a factory.

The inventive method is used in particular for producing a wall component according to a of the claims 1 to 14. It is by the manufacturing steps described below characterized. First a first concrete layer is produced, which later becomes the outer wall a building serves. If for This first concrete layer is provided with a reinforcement in this regard Reinforcing material installed in this manufacturing step. On not yet completely hardened first concrete layer is applied an insulating layer, the For example, consists of polystyrene foam. Because the first concrete layer not yet complete is tied between the insulation layer and the first layer of concrete through this also made an adhesive bond.

Now the connecting elements and / or the connecting means through the insulating layer introduced into the first concrete layer. This could, for example, holes or slits in the insulation layer be provided, through which the connecting elements or the connecting means be pushed through. The provision of holes in the insulation layer for the Connecting elements facilitates the manufacture in an advantageous manner a wall element, as by the arrangement of the holes automatically the static requirements of the distribution of fasteners is ensured. This manufacturing step is done in one Condition in which the first concrete layer has not yet completely set is, so that the connecting elements or the connecting means can still be introduced into the first concrete layer. Thus extended the connecting elements or the connecting means on the one hand into the first layer of concrete and on the other hand they protrude on the side of the insulating layer facing away from the first concrete layer. Optionally, the first concrete layer is compacted, for example by applying force in conjunction with shaking movements one for the first Concrete layer provided formwork.

at The production of the second concrete layer can also be reinforcing material are introduced, this is usually a preferred embodiment be because the second concrete layer used as an inner wall for a building to be manufactured and this is used for the removal of building loads.

In the second concrete layer are then introduced connecting means such that the bonding agent extends both into the second concrete layer extend as well as protrude from the second concrete layer. Still in a condition in which the second concrete layer has not yet completely set is, is the first concrete layer including insulation layer and fasteners or connecting means - for example with a turning table - the second concrete layer so approximated that the connecting elements extend into the second concrete layer. If necessary the two concrete layers as far as approached, until the fasteners as good as completely through the second Concrete layer up to the insulating layer facing away from the surface extend second concrete layer. In that regard serve the fasteners for determining the width of the gap, so have a spacer function. The first concrete layer is at least in this process step largely tied. The two concrete layers are in approaching so oriented to each other, that of the respective concrete layer protruding connecting means facing each other. In that regard extend the connecting means in between the two concrete layers provided intermediate space. A compacting of the second concrete layer could also be provided, preferably before connecting the two Parts.

alternative to the just described manufacturing method of a wall component In the following, a very particularly preferred production method described that in particular for the production directly on site at a construction site and where a turning table is not needed becomes. It dissolves in procedurally the object mentioned by the features of the claim 16. Also, this manufacturing method is preferably used for Production of a wall component according to one of the claims 1 to 14th

So In a manufacturing step, the connecting elements and / or the connecting means introduced by an insulating layer, that the connecting elements or the connecting means on both sides the insulating layer protrude.

A first concrete layer is produced, in which, if necessary, reinforcement material can be introduced. In the first concrete layer connecting means are then introduced so that the connecting means extend both in the first concrete layer and protrude from the first concrete layer. The connection means could be connected to the reinforcement material of the first concrete layer. If necessary, the first concrete layer is compacted. Now, the insulating layer together with connecting elements or connecting means is applied to the not yet fully set first concrete layer such that the connecting elements extend into the first concrete layer and between the first concrete layer and the insulating layer remains a gap. Since the fasteners by a larger amount than the Protruding connecting means of the first concrete layer facing surface of the insulating layer, this gap is automatically prepared by the connecting elements abut the formwork of the first concrete layer. This space is used in the later installation of the wall component for filling with in-situ concrete.

On the side of the insulating layer facing away from the first concrete layer a second concrete layer is produced, wherein the connecting elements or the connecting means from the insulating layer out into the second Concrete layer extend. For the second concrete layer could Reinforcement material may also be provided. After the two concrete layers can have set, the wall / ceiling construction thus produced be installed immediately.

The The object mentioned at the outset is with regard to a connection means for a Wall element solved by the features of claim 18. Accordingly, comes the connecting means according to the invention in a wall element used, in which two from each other spaced arranged concrete layers are provided, wherein a the two concrete layers an insulating layer assigned. The two concrete layers are using fasteners interconnected, being between the insulating layer and the other concrete layer to fill up with in-situ concrete a gap is provided. The connecting elements extended from the one concrete layer through the insulation layer and the gap to the other concrete layer. Extends according to the invention If necessary, the connecting means of a concrete layer through the insulating layer only through into the gap.

It are now different ways to design the teaching of the present invention in an advantageous manner and further education. On the one hand to the claim 1 subordinate claims and on the other hand to the following explanation of the preferred embodiments of the invention with reference to the drawing. Combined with the explanation the preferred embodiments The invention with reference to the drawings are also generally preferred Embodiments and developments of the teaching explained. In show the drawing

1 1 is a schematic representation of a first exemplary embodiment of a wall component according to the present invention in a cross-sectional representation,

2 a schematic representation of a section of the wall component from 1 .

3 to 9 in each case a schematic representation of a further exemplary embodiment of a section of a wall component according to the present invention in a cross-sectional representation,

10 a schematic representation of the embodiment of 9 in a plan view and

11 an alternative schematic representation of the embodiment of 9 in a top view.

1 shows a cross-sectional view of a wall component 1 , the two spaced concrete layers 2 . 3 having. The concrete layer 2 is at a building that has several wall elements 1 is built, the outer wall. For the sake of simplicity, the following will be the concrete layer 2 also as outer concrete layer 2 designated. Accordingly, it is the concrete layer 3 around the inner concrete layer of a building to be manufactured and is called inner concrete layer 3 designated.

The outer concrete layer 2 is the insulating layer 4 assigned, in the form that the insulating layer 4 and the concrete layer 2 have an adhesive bond. Between the insulation layer 4 and the inner concrete layer 3 is a space for filling with in-situ concrete 5 intended. The individual layers of the wall element 1 out 1 have in detail the following thicknesses: outer concrete layer 2 : 60 mm damp course 4 : 60 mm gap 5 : 140 mm Inner concrete layer 3 : 50 mm.

This in 1 illustrated wall component 1 has a length of 3600 mm.

The concrete layers 2 . 3 are with several fasteners 6 connected, the verbin dung elements 6 away from the outer concrete layer 2 through the insulating layer 4 and the gap 5 through to the inner concrete layer 3 extend. That in the 1 and 2 shown connecting element 6 has a length of 250 mm.

According to the invention, at least one connecting agent 7 provided, extending from the outer concrete layer 2 through the insulating layer 4 only through into the gap 5 extends. Thus, the connection means connects 7 the outer concrete layer 2 with the gap 5 , wherein the connecting means 7 not up to the inner concrete layer 3 extends. With the reference number 8th are called connecting means that the inner concrete layer 3 with the gap 5 connect. The connecting means 7 and 8th differ in the embodiments of the 1 and 2 in particular with regard to their length in the direction perpendicular to the concrete layer surface. So are the lanyards 7 That's why they are made larger because they pass through the insulating layer 4 extend. The number or arrangement of in the 1 and 2 shown fasteners 6 and the connecting means 7 and 8th is merely to illustrate an embodiment and does not necessarily correspond to the number or the arrangement of the connecting elements 6 or the connecting means 7 and 8th in a wall element actually produced.

Both the fasteners 6 as well as the connecting means 7 . 8th have a low thermal conductivity, which have a value of 0.5 W / (mK). Accordingly, the wall components 1 virtually no thermal bridge on, in particular, through the fasteners 6 could result. This leads to a wall component 1 , which has a very low thermal conductivity overall. The connecting means 8th However, could also have a thermal conductivity of 17 W / (mK) - as in stainless steel - or a thermal conductivity of 50 W / (mK) - such as reinforcing steel - exhibit.

2 shows a detail of the in 1 shown wall component 1 in which the same components are identified by the same reference numerals. The left and the right side of this detail are to be imagined accordingly.

The 3 to 9 each show different embodiments of the connecting means 7 . 8th according to the invention in a wall component 1 can be installed. Here, too, only detail sections are shown, the left and the right sides of these detail sections are to be imagined correspondingly weiterverlaufend. Again, the same or similar components are identified by the same reference numerals.

So is the lanyard 8th out 3 formed in cross section as a W-shaped component, which is the inner concrete layer 3 with the gap 5 combines. The same goes for the in 3 shown connecting means 7 , which through a corresponding recess 9 in the insulating layer 4 was introduced, wherein the recess 9 indicated by dashed lines. In the 4 shown connecting means 7 . 8th are formed in cross-section S-shaped. In the 5 shown connecting means 7 . 8th have a double T-shape or a - turned by 90 degrees - H-shape, wherein the mutually parallel parts of the connecting means 7 . 8th each in the concrete layer 2 respectively. 3 and in the gap 5 are arranged. In the 6 shown connecting means 7 . 8th are Z-shaped, here also the mutually parallel parts of the connecting means 7 . 8th each in the concrete layer 2 respectively. 3 and in the gap 5 are arranged.

In the in the 7 and 8th The connecting means shown are in each case composite anchor according to the DE 201 17 798 U1 with their middle area perpendicular to the surface of the respective concrete layer 2 respectively. 3 are arranged.

This in 9 shown connecting means 7 respectively. 8th is designed in the form of a lattice girder. It is a spacer called "Dista" of two parallel struts 10 having the zigzag with a connecting strut 11 are entwined connected. The connecting means 7 respectively. 8th out 9 is in the inner concrete layer 3 or in the outer concrete layer 2 wavy, which is schematically shown in the plan view 10 is indicated. Here is the inner concrete layer 3 with her the gap 5 facing surface, in which the connecting means formed as a lattice girder 8th is introduced. According to the schematic plan view 11 is the connecting means in an alternative embodiment 8th out 9 in the inner concrete layer 3 arranged in a grid. In the 10 and 11 are each the strut 10 entwining connecting struts 11 shown in a circle at the points of wrap. This in 9 shown connecting means 8th gives the concrete layer 3 additionally still stability, whereby this function does not necessarily with all applications of the Wall element according to the invention 1 is required.

In 8th is shown in both the inner concrete layer 3 as well as in the gap 5 a reinforcement 12 is provided. The probation 12 the inner concrete layer 3 is in the form of a along the entire concrete layer 3 extending strut 13 formed, which extends through the holes provided in the composite anchor, not shown. Accordingly, in the manufacture of the inner concrete layer 3 first the struts 13 on which the composite anchor are attached or threaded. Only then does the concrete become the inner concrete layer 3 placed in a corresponding formwork. The reinforcement 12 in the space 5 is provided is in the form of a strut element 14 educated. This is a length limited strut that is inserted through the holes provided in the composite anchor.

In the 2 shown connecting means 7 . 8th include a plate construction. The designed as a plate construction connecting means 8th out 2 have a length in the direction perpendicular to the surface of the inner concrete layer 3 of about 100 mm. The length of the connecting means 7 includes about 160 mm. The width of the plate construction of the connecting means 7 . 8th each is about 80 or 100 mm. The plate construction has a thickness of about 1 to 4 mm and has multi-directional arranged fibers for reinforcement. From the surface of the plate construction protrude perpendicular to this braces 15 from having a length of about 50 mm. Through the bracing pieces 15 the plate constructions have an improved hold in the respective layer.

As connecting means 7 . 8th For example, a plate construction could be provided comprising two plates arranged substantially in parallel and connectable to a connector. This plate construction appears in cross section as the connecting means 7 . 8th out 5 , The mutually parallel plates could be square, rectangular or circular.

Both from the just indicated as well as from the in 2 shown plate construction or of the in 5 shown connecting means 7 . 8th protrude struts 15 from, at its the surface facing away from the plate construction end facing a substantially spherical end piece 16 having.

The connecting elements 6 have unidirectionally arranged boron-free silicate glass fibers with a polyester matrix. The connecting means 7 and 8th have multidirectionally arranged glass fibers in a thermoplastic polyurethane and can also absorb shear forces due to the multidirectionally arranged glass fibers. In that regard, that is in 1 wall elements shown completely free of reinforced concrete or other metal fasteners. Accordingly, in this wall component 1 no thermal bridges formed, so that advantageously a very good thermal insulation of the wall component 1 is present. The insulating layer 4 consists of an extruded polystyrene rigid foam.

In conclusion, be particularly noted that the above discussed embodiments merely to describe the claimed teaching, this but not on the embodiments limit.

1

wall element

2

outer concrete layer

3

inner concrete layer

4

damp course

5

gap

6

connecting element

7

Connecting means between ( 2 ) and ( 5 )

8th

Connecting means between ( 3 ) and ( 5 )

9

Recess for ( 7 ) in ( 4 )

10

Strut of ( 7 ) 8th ) out 9

11

connecting strut

12

reinforcement

13

strut

14

brace

15

Verstrebungsstücke

16

spherical tail of ( 15 )

Claims (18)

Wall element, with two spaced-apart concrete layers ( 2 . 3 ), with an insulating layer ( 4 ), which one of the two concrete layers ( 2 ), wherein between the insulating layer ( 4 ) and the other concrete layer ( 3 ) for filling with in-situ concrete a gap ( 5 ) and with several of the two concrete layers ( 2 . 3 ) connecting connecting elements ( 6 ), wherein the connecting elements ( 6 ) from the one concrete layer ( 2 ) through the insulating layer ( 4 ) and the gap ( 5 ) through to the other concrete layer ( 3 ), characterized in that at least one connecting means ( 7 . 8th ) provided by a concrete layer ( 2 . 3 ) optionally through the insulating layer ( 4 ) only into the intermediate space ( 5 ). Wall element according to claim 1, characterized in that the connecting elements ( 6 ) are formed substantially rod-shaped or anchor-shaped, preferably as from the US Pat. No. 6,263,638 B1 known fasteners. Wall element according to claim 1 or 2, characterized in that the connecting means ( 7 . 8th ) of a concrete layer ( 2 ; 3 ), possibly from the insulating layer ( 4 ), up to half the width of the gap ( 5 ) into the space ( 5 protrude). Wall element according to one of claims 1 to 3, characterized in that the connecting elements ( 6 ) and / or the connecting means ( 7 . 8th ) have a medium to low thermal conductivity and / or a high corrosion resistance. Wall element according to one of claims 1 to 4, characterized in that the connecting means ( 7 . 8th ) comprises a component which has a substantially W-shaped, S-shaped, H-shaped, double-T-shaped or Z-shaped cross-section, preferably the connecting means ( 7 . 8th ) a composite anchor according to the DE 201 17 798 U1 , Wall element according to one of claims 1 to 5, characterized in that the connecting means ( 7 . 8th ) has a lattice girder, which is preferably arranged grid-shaped, looped or wavy. Wall element according to one of claims 1 to 6, characterized in that a reinforcement ( 12 ) is provided, which in the space ( 5 ) and / or in the respective concrete layer ( 2 ; 3 ) is arranged, with which the connecting means ( 7 . 8th ) is connectable in at least one place. Wall element according to claim 7, characterized in that the reinforcement ( 12 ) at least one strut element ( 14 ). Wall element according to one of claims 1 to 8, characterized in that the connecting means ( 7 . 8th ) substantially comprises a plate construction. Wall element according to claim 9, characterized in that the plate construction projecting from its surface Verstrebungsstücke ( 15 ) having. Wall element according to claim 9 or 10, characterized characterized in that the plate construction is two, essentially comprises plates arranged in parallel, which connectable with at least one connecting piece are. Wall element according to claim 10 or 11, characterized in that the Verstrebungsstücke ( 15 ) at its the surface facing away from the plate construction end a thickening or a substantially spherical shaped end piece ( 16 ) respectively. Wall element according to one of claims 1 to 12, characterized in that the connecting elements ( 6 ) and / or the connecting means ( 7 . 8th ) Comprise plastic with unidirectionally or multidirectionally arranged fibers which in particular comprise glass, basalt or carbon fibers, preferably boron-free silicate glass fibers, wherein the plastic in particular comprises polyester, vinyl ester or polyurethane. Wall element according to one of claims 1 to 13, characterized in that the insulating layer ( 4 ) has a - preferably extruded - polystyrene hard foam. Method for producing a wall component according to one of Claims 1 to 14, characterized in that a first concrete layer ( 2 ) is prepared that on the not yet fully set first concrete layer ( 2 ) an insulating layer ( 4 ) is applied, that connecting elements ( 6 ) and / or connecting means ( 8th ) through the insulating layer ( 4 ) in the first concrete layer ( 2 ) are introduced such that the connecting elements ( 6 ) or the connecting means ( 8th ) on the one hand into the first concrete layer ( 2 ) and on the other hand on the first concrete layer ( 2 ) facing away from the insulating layer ( 4 ), that if necessary the first layer of concrete ( 2 ) is compacted, that a second concrete layer ( 3 ) into which bonding agent ( 7 ) are introduced such that the connecting means ( 7 ) into both the second concrete layer ( 3 ) as well as from the second concrete layer ( 3 ) protrude and that - preferably with a turning table - the at least largely hardened first concrete layer ( 2 ) together with insulating layer ( 4 ), Fasteners ( 6 ) and / or connecting means ( 8th ) of the second concrete layer ( 3 ) is approximated such that the connecting elements ( 6 ) into the second concrete layer ( 3 ). Method for producing a wall component according to one of Claims 1 to 14, characterized in that connecting elements ( 6 ) and / or connecting means ( 8th ) by an insulating layer ( 4 ) are introduced such that the connecting elements ( 6 ) or the connecting means ( 8th ) on both sides of the insulating layer ( 4 ) protrude that a first concrete layer ( 3 ) into which bonding agent ( 7 ) are introduced such that the connecting means ( 7 ) in both the first concrete layer ( 3 ) as well as from the first concrete layer ( 3 ), that if necessary the first layer of concrete ( 3 ) is compacted onto the not yet completely hardened first concrete layer ( 3 ) the insulating layer ( 4 ) together with connecting elements ( 6 ) or connecting means ( 8th ) is applied such that the connecting elements ( 6 ) into the first concrete layer ( 3 ) and between the first concrete layer ( 3 ) and the insulating layer ( 4 ) a gap ( 5 ) remains that on the first concrete layer ( 3 ) facing away from the insulating layer ( 4 ) a second concrete layer ( 2 ) is produced, wherein the connecting elements ( 6 ) or the connecting means ( 8th ) of the insulating layer ( 4 ) out into the second concrete layer ( 2 ). A method according to claim 15 or 16, characterized in that during the production of the first and / or the second concrete layer ( 2 . 3 ) a reinforcement material ( 12 ) is introduced. Connecting means for a wall element, wherein the wall element ( 1 ) two spaced apart concrete layers ( 2 . 3 ), one of the two concrete layers ( 2 ) associated with insulating layer ( 4 ) and several the two concrete layers ( 2 . 3 ) connecting connecting elements ( 6 ), wherein between the insulating layer ( 4 ) and the other concrete layer ( 3 ) for filling with in-situ concrete a gap ( 5 ) is provided and wherein the connecting elements ( 6 ) from the one concrete layer ( 2 ) through the insulating layer ( 4 ) and the gap ( 5 ) through to the other concrete layer ( 3 ), characterized in that the connecting means ( 7 . 8th ) from a concrete layer ( 2 ; 3 ) optionally through the insulating layer ( 4 ) only into the intermediate space ( 5 ).