CH711343A2 - Prefabricated building part with an insulation element for connecting a concrete cantilever plate to a concrete structure. - Google Patents

Abstract

The invention relates to a prefabricated component (1) for connecting a concrete header with a concrete structure. The prefabricated component (1) comprises an insulating body (2) which has penetrating connecting plates (V). Anchoring rods (S) can be connected via connections (A) to the connecting plates (V). The connection plates (V) and the connections (A) are designed such that after installation of the prefabricated component (1) the connection plates (V) between the minimum concrete coverings (40, 50) of the concrete cantilever and the concrete structure are free of connections (A).

Description

TECHNICAL AREA

The invention relates to a prefabricated component with a insulating body for connecting a Betonkragplatte with a concrete structure.

STATE OF THE ART

From the prior art it is known that it comes in balconies and similar Betonkragplatten due to thermal bridges to unwanted energy flow from the building. It is therefore desirable to arrange an insulating element between Betonkragplatten and a concrete structure. In particular, a reliable aging resistance of the connection between the concrete faceplate and the concrete structure must be ensured, especially due to heat fluctuations that lead to transverse displacement of the concrete cantilever and the concrete structure and thus to a special stress on the connection between the concrete cantilever and the concrete structure.

EP 2 055 845 shows a connecting element for the connection of a cantilever plate with a building structure. An insulating body is pierced by reinforcing elements. The reinforcing elements have a stiffening plate for receiving shear forces, a tension rod and a push rod. The tension rod and the pressure rod are formed or fixed to an upper edge or at a lower edge of the stiffening plate, in particular by welding, soldering or gluing. The upper and lower edge extends through the insulating body. The length of the stiffening plates is greater than the thickness of the insulating body. On the sides of the insulating body and parallel to this, a lateral force transmission element is present, which is positively and / or non-positively connected to the stiffening plates of adjacent reinforcing elements.

PRESENTATION OF THE INVENTION

An object of the invention is to provide a prefabricated component for connecting a concrete header with a concrete structure, which avoids at least certain disadvantages of the prior art. Another object of the invention is to provide a prefabricated component for connecting a concrete header with a concrete structure, which has a high resistance to aging.

This object is achieved by the features defined in the independent claim 1.

A prefabricated component for connecting a concrete cantilever with a concrete structure comprises an insulating body. The insulating body has thorough connecting plates. One or more connection plates may be provided. Anchoring rods can be connected to the connecting plates via connections. A defined in Durchgreifrichtung and lying in the insulating body plate portion of the connecting plates is free of terminals. The punch-through direction may be defined as along a plate surface of a connection plate. The plate section in question begins at a starting plane which is perpendicular to the punch-through direction and ends at a target plane, which is also perpendicular to the punch-through direction and is offset from the starting plane by a certain distance. The plate section may extend over the entire insulating body. The plate portion may extend over a smaller part of the insulating body. The anchoring rods may be made partially or entirely of a corrosion resistant material. In particular, those portions are made of a corrosion-resistant material that extend into the insulating body. Other parts may be made of a low cost but non-corrosion resistant material. The prefabricated component is designed to produce a stable, age-resistant connection between a concrete header and a concrete structure, in particular taking into account a wide variety of requirements for materials and production costs. The prefabricated component is robust against deformations arising due to temperature fluctuations, in particular due to the connecting plates penetrating the insulating body.

In one embodiment, the connecting plates and the connections are designed such that after installation of the prefabricated component, the connecting plates between the minimum concrete covers the concrete cantilever and the concrete structure are free of terminals. In other words, there are no connections for anchoring rods in the region of the insulating body, which can age due to transverse displacements and can fail. The connections are also located in an area of the concrete cantilever or concrete structure, which is covered by a minimum concrete cover and thus protected against aging.

In one embodiment of the prefabricated component anchoring rods are connected via connections with connecting plates, which are designed as load connections in the form of welded joints. The welding technique is proven and it can be made a prefabricated component that meets the required quality criteria.

In one embodiment of the prefabricated component anchoring rods are connected via connections with connecting plates, which are designed as load connections in the form of screw. The anchoring rods are first screwed on site. As a result, the prefabricated component is better suited for transport or stacking in a bearing, since no anchoring rods protrude from the prefabricated component. The screw connection, which is covered after installation of a minimum concrete cover, allows the connection of the anchoring rods with the connecting plate in the required stability and quality.

In one embodiment of the prefabricated component, the screw connections comprise elongated guides, which are formed on connecting plates and with which anchoring rods can be screwed. In the manufacture of the prefabricated component, the screw connections can be attached to the connecting plates in a required quality.

In one embodiment of the prefabricated component anchoring rods are connectable via connections with connecting plates, which are designed as part-load connections in the form of connectors. A plug-in connection made it easy to install on site. The partial load connection can only be designed for parts of the tensile forces acting between the concrete cantilever plate, compressive forces, shear forces, etc., since the plug connection can possibly transmit forces in the radial direction, but can transmit forces less effectively in the axial direction.

In one embodiment of the prefabricated components include connectors elongated guides, which are formed on connecting plates and in which anchoring rods can be inserted into it, wherein the anchoring rods extend from the Betonkragplatte into the concrete structure. The anchoring rods can be easily mounted. As the anchoring rods extend from the concrete cantilever to the concrete structure, tensile forces and compressive forces can be transmitted.

In one embodiment of the prefabricated components are connections laterally on one or two sides at an upper side region and / or at a lower lateral region of the connecting plate. A one-sided arrangement is less expensive, while a two-sided arrangement can provide a higher bearing capacity of the connection. The finished component can be flexibly adapted to different conditions and the aging resistance can be ensured.

In one embodiment of the prefabricated component are connections to an upper edge and / or at a lower edge of the connecting plate.

In one embodiment of the prefabricated components ports are formed as slot-shaped recesses on connecting plates, in which anchoring rods are welded. As a result, the anchoring rods can be connected more stably to connection plates, since two opposite sides of the anchoring rods are welded to connecting plates.

In one embodiment of the prefabricated component, an additional reinforcement for receiving pressure forces is formed on connecting plates at a lower region. The connecting plate can thereby have a smaller cross-section and thus a smaller thermal conductivity.

In one embodiment of the prefabricated component, the additional reinforcement in the form of a profile, in particular a fold, is formed. The profile can be dimensioned according to the compressive forces to be included according to a specification.

In one embodiment of the prefabricated component, the additional reinforcement comprises a stiffening component connected to or forming part of the connection plate. This results in additional possibilities to meet the dimensioning according to a specification.

In one embodiment of the prefabricated component, the prefabricated component, in particular the connecting plates, designed to create the connection between the concrete structure and the concrete cantilever, which are located at different heights. In particular, the connection between the prefabricated part and the concrete cantilever is at a different height above ground than the connection between the prefabricated part and the concrete structure. As a result, for example, a ground-level access to a balcony is made possible by a concrete floor on which, for example, a parquet floor is arranged.

In one embodiment of the prefabricated component connecting plates are covered with a Dämmkappe. In particular, lateral flanks of the connecting plates are clad with the insulating cap, which flanks would otherwise be in direct contact with the concrete after installation. The Dämmkappe is made for example of a plastic and closes on both sides of the connection plates. The insulation cap reduces the heat flow between the concrete and the connection plates. This improves the thermal insulation properties. In a variant, the insulating cap is made in the form of a thermally insulating paint.

BRIEF DESCRIPTION OF THE DRAWINGS

Based on figures, which represent only embodiments, the invention will be explained below. Show it: <Tb> FIG. 1 <SEP> schematically a perspective view of a prefabricated component for connecting a concrete cantilever panel to a concrete structure; <Tb> FIG. 2 <SEP> is a perspective view of a prefabricated building which connects a concrete header with a concrete structure; <Tb> FIG. 3a <SEP> a cross-section of a prefabricated component as well as the concrete cantilever panel and the concrete structure after installation; <Tb> FIG. 3b <SEP> a cross-section of another prefabricated building element as well as the concrete skirting board and the concrete structure after installation; <Tb> FIG. 4 <SEP> a prefabricated component and a plurality of anchoring rods which can be connected to the prefabricated component; <Tb> FIG. 5 <SEP> a prefabricated component and a plurality of anchoring rods, which are connectable to the prefabricated component and extend from the concrete header plate into the concrete structure; <Tb> FIG. 6a <PRE> a prefabricated component, with which a concrete cantilever panel can be connected to a concrete structure, which are located at different heights; <Tb> FIG. 6b <PRE> another prefabricated component with which a concrete cantilever panel can be connected to a concrete structure located at different heights; and <Tb> FIG. 7a-g <SEP> Cross sections of various embodiments of a connection plate.

WAY (E) FOR CARRYING OUT THE INVENTION

Fig. 1 shows schematically a perspective view of a prefabricated part 1 for connecting a concrete cantilever 4 (not shown in Fig. 1) with a concrete structure 5 (not shown in the figure). The prefabricated component 1 comprises a Dämmkörper 2. The insulating body 2 is made of a dimensionally stable insulating material such. Polystyrene or rock wool produced. The insulating body 2 has the function to increase the heat transfer resistance between the concrete structure 5 and the concrete cantilever 4 and to reduce the heat flow, in particular to obtain a minimum heat protection. The insulating body 2 is cuboid and usually has a length between 50 cm and 100 cm, a height between 12 cm and 30 cm and a width or thickness between 4 cm and 20 cm. To improve the fire resistance of the insulating body 2 may be made wholly or partly of non-combustible materials.

A plurality of connecting plates V pass through the insulating body 2. In Fig. 1, a total of three connecting plates V are shown, of which for better clarity only one of the connecting plates V, the reference number is located. The reference numbers are to be assigned accordingly for the further connection plates. The number of connection plates V can be chosen arbitrarily. Typically, the number of connecting plates V is between 2 and 8. The connecting plates V are made of a stainless steel. The connecting plates V have a length between 10 cm to 28 cm, a height between 10 cm and 30 cm and a thickness between 3 mm and 15 mm. In particular, the insulating body and the connecting plates V are dimensioned so that the connecting plates V hineinerstrecken after installation of the prefabricated component 1 into the concrete cantilever 4 and the concrete structure 5.

As can be seen from Fig. 1, anchoring rods S are connected via terminals A with the connecting plates V. The connections A are designed, for example, in the form of welded connections. The connection plates V and the connections A are designed such that after installation of the prefabricated component 1, the connection plates between the minimum concrete coverings 40, 50 of the concrete cantilever 4 and the concrete structure 5 are free of connections A. The minimum concrete coverages 40, 50 will be described in detail below. The terminals A are made in the form of load terminals to transmit loads between the connecting plates V and the anchoring bars S. After installation of the manufacturing component 1, the anchoring rods S are anchored in the concrete cantilever 4 or in the concrete structure 5. Forces such as shear forces, tensile forces, compressive forces, etc. between the concrete cantilever 4 and the concrete structure 5 are thus transmitted via the connecting rods S, connections A and connecting plates V. Since the connecting plates V are made of a stainless steel and then the installation of the prefabricated component 1, the connecting plates V between the minimum concrete covers 40, 50 are free of terminals A, no parts can corrode, whereby a high aging resistance is ensured. On the other hand, the anchoring rods S can therefore consist of cost-effective, normal reinforcing steel, but this is not absolutely necessary.

In an upper area, the connecting plates V can absorb tensile forces. In a lower region, the connecting plates V can absorb compressive forces. In a diagonal from top to bottom extending region, the connection plates V can absorb shear forces. The tensile forces, compressive forces, shear forces, etc. can be caused in particular by a tilting moment of the concrete cantilever 4, by the gravity of the concrete cantilever 4, etc. In order to accommodate the compressive forces, the connecting plates V may have additional reinforcement in a lower region, for example a fold K as shown in Fig. 1, or any other additional reinforcement as described below.

As shown schematically in Fig. 1, insulation caps D are mounted on one or more connecting plates V respectively. The insulating caps D are provided to provide additional insulation between the concrete and the connecting plates. The insulating caps can be made of plastic.

Fig. 2 shows a perspective view of a prefabricated part 1, which connects a concrete cantilever 4 with a concrete structure 5. For better clarity, the concrete cantilever 4 and the concrete structure 5 are shown in dashed lines. The anchoring rods S are connected via connections A with the anchoring plates V and at the same time anchored in the concrete cantilever 4 and in the concrete structure 5. As a result, the loads and forces of the concrete cantilever 4, which are due to gravity or due to the burden of concrete cantilever 4 by objects that are mounted on the concrete cantilever 4 or by persons who commit the concrete cantilever 4, transferred to the concrete structure 5 and the concrete cantilever 4 thereby stably fixed to the concrete structure 5.

Between the concrete cantilever 4 and the concrete structure 5 is the insulating body 2, which ensures heat insulation and reduces the heat flow between the concrete structure 5 and the concrete cantilever 4. The heat flow transmitted through the connecting plates V between the concrete structure 5 and the concrete cantilever 4 is small because the cross section of the connecting plates V is small.

The minimum concrete cover defined in a reinforced concrete component an outer region of the reinforced concrete part, which has no reinforcing steel. The purpose of the minimum concrete cover is to protect the reinforcing steel against environmental influences.

As schematically illustrated in FIG. 2, the connections A and the anchoring rods S are located inside the concrete cantilever 4 or the concrete structure 5, but outside the minimum concrete coverings 40, 50. As a result, the connections A and the anchoring rods S are protected against corrosion, if they are not themselves corrosion resistant. The area of the connecting plates V which lies between the concrete header 4 or the concrete structure 5 or within the minimum concrete cover 40, 50, i. the area lying in the insulating body 2 or within the minimum concrete coverages 40, 50 is free of terminals A for the transmission of loads or forces. Since a transverse displacement between the concrete cantilever 4 and the concrete structure 5 must be compensated due to thermal fluctuations, the connecting plates V deform along the insulating body 2. Any connections of anchoring rods V, for example in the region of the insulating body 2 would be burdened by such deformation movements and therefore could prematurely fail. A certain deformation movement may extend into the minimum concrete coverings 40, 50. By the terminals A are sufficiently deep embedded in the concrete concrete slab 4 or the concrete structure 5, where no such deformation movements can take place, there is a stable connection of anchoring rods S to connecting plates V.

Fig. 3a and Fig. 3b show a cross section of the prefabricated component 1 and the concrete cantilever 4 and the concrete structure 5 after installation. For better clarity, the concrete cantilever 4 and the concrete structure 5 are shown in dashed lines. The concrete cantilever 4 shown on the left in FIG. 3a and FIG. 3b is, for example, a building balcony side balcony. The concrete structure 5 shown on the right in FIG. 3a and FIG. 3b is, for example, a building-inside concrete floor.

In the variant shown in FIG. 3a, the connecting rods S1, S2, S3, S4 extend into a region which lies within the minimum concrete coverings 40, 50. The part of the connecting bars S1, S2, S3, S4 which lies within minimum concrete coverings 40, 50 may be made of a material which is corrosion resistant.

In the variant shown in Fig. 3b, the connecting rods S1, S2, S3, S4 extend only into a region which is outside the minimum concrete covers 40, 50. The connecting rods 51, S2, S3, S4 may be made of a low cost material that is not corrosion resistant.

As schematically shown in Fig. 3a, a plate portion L of the connection plates V is free from terminals. The plate portion L is defined with respect to the punch-through direction. The punch-through direction is defined with respect to the connection plates V. The plate portion L may extend over the entire insulating body 2 or more. The plate portion L may extend over a shorter portion.

Before the concrete cantilever 4 and the concrete structure 5 are poured, a corresponding formwork is attached and arranged the prefabricated component 1 at the appropriate location. After casting the concrete cantilever 4 and the concrete structure 5, the concrete cantilever 4 is connected via the precast component 1 with the concrete structure 5. After casting and as shown in FIG. 3b, the anchoring bars S1, S2 arranged on the side of the concrete cantilever 4 are anchored in the concrete cantilever 4, while the anchoring bars S3, S4 arranged on the side of the concrete structure 4 are anchored in the concrete structure 4. The concrete cantilever 4 and the concrete structure 5 have as usual reinforcements. To prevent corrosion, minimum concrete coverages 40, 50 must be adhered to. The minimum concrete cover 40 for the externally arranged concrete cantilever is between 4 cm and 8 cm, depending on the standard. The minimum concrete cover for the inside concrete structure 5 is between 3 cm and 6 cm, depending on the standard. As can be seen from FIG. 3b, the anchoring rods S1, S2, S3, S4 are connected to the anchoring plate V via connections A1, A2, A3, A4. The anchoring plate V passes through the insulating body 2, which has a thickness 20 and is arranged to reduce the heat flow between the concrete structure 5 and the concrete cantilever 4. The connections A1, A2, A3, A4 are located outside of a free area 60, which is defined by the building exterior side minimum concrete cover 40, by the thickness 20 of the insulating body and by the building inside minimum concrete cover 50. Within the free area 60, the connecting plate V has no connections A1, A2, A3, A4 for the transmission of loads or forces between the concrete cantilever 4 and the concrete structure 5. In other words, the connection plate V within the free area 60 is free of load connections for transmitting forces between the anchoring bars S1, S2, S3, S4 and the connection plate V. The transmission of loads and forces between the anchoring bars S1, S2, S3, S4 and the connection plate V required connections A1, A2, A3, A4 are all within the concrete header 4 or the concrete structure 5, but outside the minimum concrete coverages 40, 50 and are therefore protected against corrosion, if they are not protected against corrosion.

In temperature fluctuations, the concrete cantilever 4 expands in a different mass than the concrete structure 5. For example, over a length of 1200 cm temperature fluctuations shifts of 3 mm result. These considerable transverse displacements of the concrete cantilever 4 with respect to the concrete structure 5 are to be compensated. The prefabricated component 1, in particular the connecting plates V, the insulating body 2, etc., can transmit and compensate for these transverse displacements. Since the connection plates V in the free area 60 are free of connections A1, A2, A3, A4 for the transmission of loads and forces, there are no welded connections or the like in this free area 60, which fail as a result of displacements, corrosion, etc. over time could. Since the connections A1, A2, A3, A4 are within the concrete cantilever 4 or the concrete structure 5, but outside the minimum concrete coverages 40, 50, they are protected against displacement, corrosion, etc. and therefore resistant to aging.

As mentioned above, transfer the connecting plates V tensile forces, compressive forces, shear forces, etc. between the concrete cantilever 4 and the concrete structure 5. In Fig. 3b, a tensile force Z, a compressive force T and a shear force C is schematically drawn, which the connection plate V are transferred. The exact course of the forces, which are passed via the anchoring rods S1, S2, S3, S4 and the terminals A via the connecting plate V, is relatively complicated. Depending on the thickness of the connecting plate V, the connecting plate V could or would buckle in a lower region due to the pressing force T. To prevent this, an additional reinforcement is mounted in a lower portion of the connecting plate V. As already mentioned, the additional reinforcement may be in the form of a fold K which extends over a suitable area of the connecting plate V. In another variant, the connecting plate V in a lower region on any other profile which can absorb compressive forces T, for example, a U-shaped profile, a V-shaped profile, etc. In a further variant, the connecting plate V in a lower region reinforced by a reinforcing member, for example, a reinforcing plate, which is welded to the connecting plate V. If the connecting plate V is sufficiently thick, for example, 12 mm or more, then can be dispensed with an additional reinforcement.

The connection plate V may additionally be reinforced in the upper region with a similar or identical design as in the lower region. When installing such a prefabricated component 1, it does not matter which is the upper or lower side of the prefabricated component 1. As a result, the risk of confusion can be avoided that the prefabricated component 1 is installed incorrectly and the connection between the concrete cantilever and the concrete structure is not sufficiently sustainable.

The anchoring rods S may be connected via terminals A with connecting plates V, which are formed as load terminals in the form of screw. For example, one end of anchoring rods S has a thread in order to create a fixed connection of anchoring rods S with anchoring plates V by screwing. Fig. 4 shows schematically a corresponding embodiment of a prefabricated part 1 with anchoring rods S, which are provided for connection via the terminals A with the connecting plates V. Tensile forces, compressive forces, shear forces, etc. are transmitted via the connecting plate V as in the embodiment shown in FIG. The terminals A thus act as load terminals, which allow that the forces mentioned are transmitted.

The anchoring rods S may be formed to create a continuous connection between the concrete cantilever 4 and the concrete structure 5, wherein the anchoring rods S are also connected to the connecting plates V. 5 shows a corresponding embodiment of a prefabricated component 1 with anchoring rods S. The connecting plates V have connections A in the form of elongated guides into which the anchoring rods S can be inserted. The length of the anchoring rods S is chosen so that the anchoring rods S extend from the concrete cantilever 4 through to the concrete structure 5. The transmission of tensile forces and compressive forces between the concrete structure 5 and the concrete cantilever 4 via the anchoring rods 5. An additional reinforcement of a lower portion of the connecting plates V can be dispensed with in this case, since the compressive forces are transmitted from the anchoring rods S. The transmission of shear forces via the connecting plates V. The terminals A thus act as part-load connections, which allow that although shear forces are transmitted, but no tensile forces or compressive forces.

The embodiment variants according to FIG. 4 and FIG. 5 have the advantage that the prefabricated component 1 is better stackable and transportable, since no anchoring rods S are fixedly mounted on the prefabricated component 1. Only when using the prefabricated component 1, the anchoring rods S are connected to the prefabricated component 1.

Fig. 6a and Fig. 6b show embodiments of a prefabricated part 1, with which a concrete cantilever 4 can be connected to a concrete structure 5, which are located at different heights. The connecting plates V have sloping edges to compensate for the difference in height between the concrete cantilever 4 and the concrete structure 5. The transmission of forces is analogous to the embodiment shown in Fig. 3b. For the transmission of compressive forces, an additional reinforcement may be provided in a lower region of the connecting plates V, which reinforcement is analogous to the additional reinforcement of the embodiment shown in FIG. 3b. In the embodiment shown in Fig. 6a, the concrete cantilever 4 is higher than the concrete structure. In the embodiment shown in Fig. 6b, the concrete cantilever 4 is arranged lower than the concrete structure.

Fig. 7a shows schematically a cross section of a connecting plate V. At the bottom of the connecting plate V has a fold K on for receiving pressure forces between the concrete cantilever 4 and the concrete structure 5. The fold K is L-shaped. Other forms are conceivable. As schematically illustrated in FIG. 7 a, anchoring rods S are mounted in an upper region and in a lower region, for example welded on. The anchoring rods S are attached to both sides of the connecting plate V. Due to the paired arrangement, the loads to be absorbed are divided between two anchoring rods and thus also welded joints and two welding seams each.

Fig. 7b shows schematically a cross section of a connecting plate V. At the bottom of the connecting plate V has a stiffening profile P on for receiving pressure forces between the concrete cantilever 4 and the concrete structure 5. The stiffening profile P is U-shaped. Other forms are conceivable. As schematically illustrated in FIG. 7b, anchoring rods S are mounted in an upper region and in a lower region, for example welded on. The anchoring rods S are attached to the connection plate V on one side.

Fig. 7c shows schematically a cross section of a connecting plate V. At the bottom of the connecting plate V has a fold K on for receiving pressure forces between the concrete cantilever 4 and the concrete structure 5. The fold K is L-shaped. Other forms are conceivable. As schematically illustrated in FIG. 7c, anchoring rods S are attached, for example welded, in an upper region and in a lower region. The anchoring rods S are mounted in slot-shaped recesses of the anchoring plate V. To connect two welds are possible here, too.

Fig. 7d shows schematically a cross section of a connecting plate V. At the bottom of the connecting plate V has neither a fold K nor a profile for receiving pressure forces between the concrete cantilever 4 and the concrete structure 5. As shown schematically in Figure 7d, at the upper edge and at the lower edge, ports A are in the form of elongated guides, for example in the form of sleeves, in particular welded or molded. The anchoring rods S, which extend from the concrete cantilever 4 into the concrete structure 5, are guided by the connections A. The lower anchoring rod S transmits compressive forces between the concrete cantilever and the concrete structure. It is therefore not necessary to provide additional reinforcement for receiving compressive forces at a lower region of the anchoring plate. The upper anchoring rod transfers tensile forces between the concrete cantilever and the concrete structure. Gravity forces are transmitted from the upper anchor rod via the anchor plate V and the lower anchor rod. Alternatively, the anchoring rods S can be screwed to the connecting plate V, wherein in particular tensile forces and / or pressure forces can be at least partially passed through the connecting plate V.

Fig. 7e shows schematically a cross section of a connecting plate V, which is arranged in a concrete cantilever 4 or a concrete structure 5. In Fig. 7e, a surface of the concrete concrete slab 4 / of concrete concrete structure 5 is shown schematically. As shown schematically in Fig. 7e, act between the connecting plate V, the anchoring rods S and the concrete cantilever 4 respectively. the concrete structure 5 pressing forces B, which respectively to a pressing out of the connection plate V from the concrete top plate 4. can lead the concrete structure 5. The edge of the connecting plate V and the surfaces of the anchoring rods S can be designed to absorb these pressing forces B to a sufficient degree. In particular, the diameters of the anchoring rods S can be suitably selected. For example, the diameters of the anchoring bars S are from 8 mm to 20 mm with a thickness of the connecting plate V of 3 mm to 15 mm.

Fig. 7f and Fig. 7g show schematically a cross section of connecting plate, in which both at the bottom and at the top of a fold K is mounted to accommodate compressive forces between the concrete cantilever 4 and the concrete structure 5. In a prefabricated with such connection plates V need not be paid during installation, whether the fold K is in the right place. While the lower and upper edges K protrude in the variant shown in Fig. 7f from the same side of the connecting plate V, the lower and upper edge K are in the in Fig. 7g from opposite sides of the connecting plate V from.

The cross-section shown in FIGS. 7a-c, e-g is located within the wall coverings 40, 50 of the concrete cantilever 4 and the concrete structure 5. The cross-section shown in FIG. 7d can be inside or outside the concrete coverings 40, 50 the concrete header 4 and the concrete structure 5 are located.

In FIGS. 7a-c, e, welding seams are schematically represented by small, black-filled ellipses or dots.

REFERENCE NUMBERS

[0051] <Tb> 1 <September> Precast <Tb> 2 <September> insulating body <Tb> 4 <September> Betonkragplatte <Tb> 5 <September> concrete structure <Tb> V <September> connecting plates <Tb> S <September> anchoring bars <Tb> A <September> Connections <Tb> K <September> fold <Tb> P <September> stiffening profile <Tb> T <September> compressive force <Tb> C <September> shear <Tb> Z <September> traction <Tb> B <September> press forces <Tb> L <September> plate section <Tb> D <September> Dämmkappe <tb> 40 <SEP> Building exterior minimum concrete cover <tb> 50 <SEP> building interior minimum concrete cover <tb> 20 <SEP> Insulating body thickness

Claims (15)

1. prefabricated part (1) for connecting a concrete cantilever (4) with a concrete structure (5), wherein the prefabricated part (1) comprises a Dämmkörper (2), the cross-connecting plates (V), said anchoring rods (S) via terminals (A ) are connectable to the connection plates (V), characterized in that a defined in Durchgreifrichtung and in the insulating body (2) lying plate portion (L) of the connecting plates (V) is free of terminals (A). 2. prefabricated component (1) according to claim 1, characterized in that the connecting plates (V) and the terminals (A) are designed such that after installation of the prefabricated component (1), the connecting plates (V) between the minimum concrete covers (40, 50) the concrete cantilever (4) and the concrete structure (5) are free of terminals (A). 3. prefabricated component (1) according to claim 1 or 2, characterized in that anchoring rods (S) via connections (A) with connecting plates (V) are connected, which are designed as load connections in the form of welded joints. 4. prefabricated component (1) according to one of claims 1 to 3, characterized in that anchoring rods (S) via connections (A) with connecting plates (V) are connectable, which are designed as load connections in the form of screw. 5. prefabricated component (1) according to claim 4, characterized in that the screw connections comprise elongated guides, which are formed on connecting plates (V) and with which anchoring rods (S) can be screwed. 6. prefabricated component (1) according to one of claims 1 to 5, characterized in that anchoring rods (S) via terminals (A) with connecting plates (V) are connectable, which are designed as part-load connections in the form of connectors. 7. prefabricated component (1) according to claim 6, characterized in that the connectors comprise elongated guides which are formed on connecting plates (V) and in which anchoring rods (S) can be inserted into, wherein the anchoring rods (S) from the Betonkragplatte (4) extend into the concrete structure (5). 8. prefabricated component (1) according to one of claims 1 to 7, characterized in that connections (A) are laterally on one or two sides at an upper side region and / or at a lower lateral region of the connecting plate (V). 9. prefabricated component (1) according to one of claims 1 to 7, characterized in that terminals (A) at an upper edge and / or at a lower edge of the connecting plate (V) are located. 10. prefabricated component (1) according to one of claims 1 to 8, characterized in that terminals (A) are formed as slot-shaped recesses on connecting plates (V), in which anchoring rods (S) are welded. 11. prefabricated component (1) according to one of claims 1 to 9, characterized in that connecting plates (V) at an lower portion an additional reinforcement for receiving pressure forces is formed. 12. prefabricated component (1) according to claim 10, characterized in that the additional reinforcement in the form of a profile, in particular a fold (K) is formed. 13. prefabricated component (1) according to claim 10 or 11, characterized in that the additional reinforcement comprises a stiffening member which is connected to the connecting plate (V) or part thereof. 14. prefabricated component (1) according to one of claims 1 to 12, characterized in that the prefabricated component (1), in particular the connecting plates (V), is formed to create the connection between the concrete structure (5) and the concrete cantilever (4) that are at different heights. 15. prefabricated component (1) according to one of claims 1 to 13, characterized in that the connecting plates (V) are covered with an insulating cap (D).