EP2607560B1 - Slab connection element - Google Patents

Description

Technical area

The present invention relates to a plate connection element for connecting a building part with a plate upstream of the building part.

State of the art

When connecting upstream panels to building parts, for example when connecting a balcony to a ceiling / floor slab, two aspects are in the foreground. Firstly, the various forces that act on the upstream plate, ie tensile, compressive and / or shear forces, safely and completely transferred to the building or the substrate. On the other hand, good thermal insulation must be ensured since the upstream plates are subjected to a high level of thermal stress in practice. The upstream parts can act as cold bridges and cause structural damage.

For a long time known plate connection elements therefore generally have connecting elements for transmitting power to a building part and a body made of insulating material, which causes the greatest possible thermal insulation of the upstream plate.

The DE 3 005 571 B1 discloses, for example, a cantilevered connection element with an elongated, cuboid insulating body of thermally insulating material. The insulating body is interspersed with elongated, metal reinforcing elements which extend substantially transversely to the insulating body and which are designed to absorb tensile forces. In addition to these reinforcing elements, the cantilever connection element has transverse force bars made of reinforcing steel and steel construction parts which act as pressure elements.

The DE 37 00 295 C2 describes a cantilever panel connection element with an insulation body, at least one tension element and at least one pressure element. Tension element and pressure element pass through the insulating body approximately perpendicular to the main plane and are connected duch at least one transverse element. The cross member may be cross-shaped and derives in this case occurring in both directions transverse forces particularly well.

From the DE 101 30 866 A1 is a device for thermal insulation between a building and a projecting outer part known. The component has an insulating body and tensile, compressive and optionally transverse force elements. The lateral force element of DE 101 30 866 A1 is formed by two intersecting, mirror-image arranged rods.

From the DE 199 08 388 A1 is also a device for thermal insulation between a building and a projecting outer part known. The component has an insulating body and tensile, pressure and at least one transverse force rod. If two transverse force rods are provided, they can be arranged in opposite directions and intersect in the insulating body. At least some of the reinforcing bars carry on the side facing away from the building of the insulating body a Festfestvorrichtung for mounting the projecting outer part, wherein a connection element for connecting the projecting outer part is provided to the fastening device.

This document discloses the technical features of the preamble of claim 1.

Despite the diverse, known from the prior art solutions for board connections, there is still a need for static well-loadable and thermally well insulating plate connection elements.

Presentation of the invention

This is where the invention starts. It should be made available a plate connection element, which has a good static load capacity with good thermal insulation at the same time. This object is achieved by the Plate connection element according to independent claim 1 solved. Further advantageous aspects, details and embodiments of the invention will become apparent from the dependent claims, the description and the drawings.

The plate connection element according to the invention for connecting a building part with a plate upstream of the building part has an insulator arranged in the installed state between the building part and the upstream plate, at least two, in the installed state in the building part or in the upstream plate protruding, intersecting connecting rods, at least one , fixed to the connecting rods metal cross member and, in the installed state in the upstream plate or in the building part projecting anchor on. The anchor is non-positively connected to the metal crossbeam. The at least two connecting rods pass through the insulating body and intersect in the region of the insulating body, wherein the insulating body is penetrated exclusively by the crossing connecting rods.

For additional clarification, it should be mentioned that in the case that the at least two crossing connecting rods protrude in the installed state in the building part, the anchor in the installed state protrudes into the upstream plate. Conversely, protrude in the case in which the anchor in the installed state in the building part, the at least two intersecting connecting rods in the installed state in the upstream plate.

The inventively provided, intersecting in the region of the insulating connecting rods serve to receive acting in the plane of the upstream plate forces. The plate connection element according to the invention is then used when the vertically acting load of the upstream element, so for example a balcony or a canopy, is derived via additional supports or suspensions. In the case of pre-stabilized balconies, the vertical forces are directed, for example, via supports into the ground. In canopies often mounted above the canopy fixed to the building suspensions are used. In addition, even at an angle of about 45 ° to the building surface in the direction of the upstream element extending and supporting structures supporting the structure, which introduce vertical loads directly into the structure.

Such constructions are often used in the case of objects with particularly high demands on the thermal insulation or in the retrofitting of buildings with, for example, balconies.

In the cases mentioned, the plate connection element only needs to introduce the part of the forces which occurs in the plane of the upstream plate into the structure. Such forces are caused for example by wind or by a misalignment of the supports used to derive the vertical forces. The inventively provided, intersecting in the region of the insulating connecting rods provide an excellent solution to this problem. Both vertically and parallel to the building surface in the plane of the plate occurring forces are effectively and completely transferred first to the projecting in the installed state in the upstream plate anchor. The anchor is non-positively connected to the sheet metal crossmember and transfers the said forces to the metal crossbeam. The sheet metal traverse, in turn, is firmly connected to the connecting rods and transfers the forces to the connecting rods, which ensure the introduction of forces into the structure.

Since the plate connection element according to the invention only needs to initiate the part of the forces in the structure that occurs in the plane of the upstream plate, next to the crossing connecting rods no further, the insulating body passing through elements such as tension rods or pressure elements are provided. One or more pairs of crossing connecting rods thus represent the only elements that pass through the insulating body.

It should be emphasized that the entire construction can also be used rotated by 180 °. In this case, forces occurring perpendicularly as well as parallel to the surface of the building in the plane of the plate are transferred first and foremost to the connecting rods protruding into the upstream plate in the installed state. The connecting rods are frictionally connected to the metal crossbeam and transmit the said forces to the Traverse sheet. The sheet metal traverse, in turn, is firmly connected to the anchor and transmits the forces to the anchor, which ensures the introduction of forces into the structure.

The anchor used in the present invention is a common anchor for the construction technique consisting of a rail part, a foot and a shaft.

Preferably, in the installed state between the building part and the upstream plate arranged insulating body in the region of the sheet metal traverse on a recess. For mounting the plate connection, the area of the metal crossbeam must be accessible, since the connecting rods and the anchor must be connected to the metal cross-member in a force-locking manner. After assembly, an insulating body is pressed into the recess and the cavity is closed in this way. Necessary is this approach, since usually the building part, so for example the ceiling plate, made in-situ concrete and the connecting rods or the anchor are already embedded in this operation. Only after the completion of the structure, for example, all precast balconies are mounted in one operation.

Preferably, the two crossing connecting rods extend substantially in one plane. By the expression "substantially in one plane" is to be understood that the two connecting rods must be slightly offset from each other due to their crossing in the insulating body. However, in relation to the size of the structure or even the upstream plate, it is justified to speak of "essentially a plane" in which the two connecting rods run. Particularly preferably, the plane in which the two connecting rods extend corresponds to the focal plane of the upstream plate. In this case, a particularly effective transmission of the forces occurring in the plane of the upstream plate on the building part is possible.

Particularly preferably, the two crossing connecting rods extend substantially in a horizontal plane. Balconies are usually attached to the building in a horizontal plane. In this case, one is special effective transmission of the forces occurring in the horizontally oriented plane of the upstream plate by the likewise extending in this plane connecting rods on the building part possible.

Also preferred is an embodiment according to which the two intersecting connecting rods extend substantially in a vertical plane. Between balconies, which are assigned to adjacent housing units of a building, a privacy in the form of a concrete slab is often provided, which is aligned in a vertical plane perpendicular to the building surface. The forces occurring in the vertically oriented plane of the upstream plate can be transferred to the structure particularly effectively, since the connecting rods also run in this plane.

According to a particularly preferred embodiment of the present invention, the connecting rods penetrate the sheet metal cross-piece and are screwed to the sheet metal cross-member. For non-positive connection of the metal sheet with the connecting rods are cut into the corresponding openings of the metal sheet penetrating end portions of the connecting rods thread. On both connecting rods, first a nut is screwed on, then the sheet traverse with the help of the corresponding openings plugged onto the two connecting rods and then screwed two more nuts. The sheet traverse is thus quenched between two times two nuts and fixed in this way safely and permanently.

The openings are preferably formed as slots. This embodiment is associated with the particular advantage that tolerances in the insulation thickness can be compensated in a simple manner.

According to a further preferred embodiment, the anchor penetrates the sheet metal cross member. Both the frictional connection of armature and metal traverse as well as the transmission of the forces occurring in the plane of the upstream plate can be done very effectively in this way. In this case, the sheet metal traverse in its central region on a corresponding opening, which is preferably formed as a slot. This embodiment is with the connected special advantage that tolerances in the traverse longitudinal direction can be compensated in a simple manner.

According to a further preferred embodiment, the non-positive connection of the sheet metal cross-piece with the anchor is effected by a toothing. When a toothing is a serrated, positive connection through which a full power transmission is possible.

Particularly preferably, the sheet metal traverse has a centrally arranged toothing area. The toothing area forms an element of the toothing of the armature and the metal crossbeam. In this embodiment, the opening through which the armature is guided, provided in the Zahnungsberich the sheet metal crossmember. Particularly preferably, the opening is formed as a slot. This embodiment is also associated with the particular advantage that tolerances in the traverse longitudinal direction can be compensated in a simple manner.

Preferably, a toothing having a washer is additionally provided, which engages positively in the installed state in the toothed area of the sheet metal crossmember. The anchor is guided through the opening in the washer. By a nut screwed onto a thread provided at the anchor, the toothing of the washer is brought into engagement with the toothing of the sheet metal traverse.

The use of an anchor with anchor rail is associated with a further advantage. Through the anchor rails tolerances in the upstream component can be compensated transversely to the traverse longitudinal direction in a simple manner.

Very particular preference is given to the various possible combinations of the abovementioned preferred embodiments. In all cases, the combination of the individual, more specifically specified elements leads to a combination of the advantages associated with these individual elements, which leads to particularly well suited, statically high load capacity and at the same time well insulated board connection elements.

In particular, it should be emphasized that it is a significant advantage of the plate connection element that tolerances in the insulation thickness and in the direction of the plate height and width, ie in Traversenlängsrichtung and transverse to the traverse longitudinal direction, can be easily compensated.

The connection bars, sheet traverse and anchors provided in the plate connection element according to the invention are preferably all made of metal, in particular structural and reinforcing steel, but also stainless steel. The connecting rods embedded in the concrete components are protected from corrosion by the concrete. However, at least the portions of the rods passing through the region of the insulating body must be protected against corrosion. Preferably, these sections are made of stainless steel or by the from the EP 0 895 558 B1 known system protected against corrosion. According to EP 0 895 558 B1 is a corroding existing existing reinforcing rod without contact surrounded with a non-corrosive sleeve and filled the space between the sleeve and steel rod with a pourable, hardening mass.

The present invention also includes an arrangement for connecting a building part with a plate upstream of the building part. The arrangement comprises at least one of the plate connection elements described above and a vertically acting load of the upstream plate dissipating vertical force element.

As already described above in connection with the plate connection element, the arrangement is used when the vertically acting load of the upstream element, such as a balcony or a canopy, is derived via additional supports or suspensions. In the case of pre-stabilized balconies, the vertical forces are directed, for example, via supports into the ground. In canopies often mounted above the canopy fixed to the building suspensions are used. In addition, even at an angle of about 45 ° to the building surface in the direction of the upstream element running and supporting the building Support structures are used, which introduce vertical loads directly into the structure.

Preferably, the arrangement comprises at least one vertically acting load of the upstream plate in the ground dissipating support as a vertical force element. Alternatively or additionally, the arrangement preferably comprises at least one vertically acting load of the upstream plate in the structure dissipative suspension or support as a vertical force element.

Brief description of the drawings

Fig. 1

einen horizontalen Schnitt durch ein erfindungsgemäßes Plattenanschlusselement in schematischer Darstellung;

Fig. 2

einen vertikalen Schnitt durch das Plattenanschlusselement der Figur 1 in schematischer Darstellung;

Fig. 3a

einen horizontalen Schnitt durch eine Blechtraverse in schematischer Darstellung;

Fig. 3b

die Blechtraverse der Fig. 3a in frontaler Ansicht in schematischer Darstellung;

Fig. 3c

eine Unterlegscheibe mit Zahnung in frontaler Ansicht in schematischer Darstellung.

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. Show it

Fig. 1

a horizontal section through an inventive plate connection element in a schematic representation;

Fig. 2

a vertical section through the plate connecting element of FIG. 1 in a schematic representation;

Fig. 3a

a horizontal section through a metal cross member in a schematic representation;

Fig. 3b

the metal crossbeam of Fig. 3a in frontal view in schematic representation;

Fig. 3c

a washer with toothing in frontal view in a schematic representation.

Ways to carry out the invention

FIG. 1 shows a horizontal section through a plate connection element 1 according to the invention for connecting a building part with a plate upstream of the building part plate in a schematic representation. The plate connection element 1 has an insulating body 2 arranged in the installed state between the building part and the upstream plate. The insulating body 2 is penetrated by two connecting rods 3, 4, which intersect in the region of the insulating body 2. The two connecting rods 3, 4 serve to receive acting in the plane of the upstream plate forces.

These, acting in the plane of the upstream plate forces are first transferred to a projecting in the installed state in the upstream plate anchor 6. The armature 6 is non-positively connected to the sheet metal cross member 5 and transmits said forces on the sheet metal crossmember. The sheet metal cross member 5 is firmly connected to the connecting rods 3, 4 and transmits the forces on the connecting rods.

The FIG. 2 shows a vertical section (sectional plane AA) through the plate connection element of FIG. 1 in a schematic representation. The arranged in the installed state between the building part and the upstream plate insulating body 2 has in the region of the metal sheet 5 a recess. For mounting the plate connection, the area of the sheet metal cross-member 5 must be accessible, since the connecting rods 3, 4 and the armature 6 must be frictionally connected to the sheet metal cross-member 5. After assembly, an insulating body is pressed into the recess and the cavity is closed in this way. Necessary is this approach, since usually the building part, so for example the ceiling plate, made in-situ concrete and the connecting rods or the anchor are already embedded in this operation. Only after the completion of the structure, for example, all precast balconies are mounted in one operation.

The FIG. 3a shows a horizontal section through the sheet metal cross member 5 in a schematic representation. Clearly visible is the center provided Tooth area 8, which is oriented towards the building when installed. In Fig. 3b , which shows the sheet metal crosshead 5 in frontal view in a schematic representation, the toothing region 8 is shown hatched. The metal traverse 5 has three openings 10, 11, 12. Like from the FIG. 1 can be seen, the opening 12 is provided to allow penetration of the metal sheet 5 through the connecting rod 3. The opening 10 allows penetration of the sheet metal cross member 5 through the connecting rod 4. The two openings 10, 12 are vertically slightly offset from each other to be able to record the two connecting rods without voltage.

The opening provided in the toothing region 8 of the metal sheet 5 opening 11 serves the frictional connection of the armature 6 and the sheet metal cross-fifth

For non-positive connection of the metal sheet 5 with the connecting rods 3, 4 are in the, the openings 10, 12 penetrating end portions of the connecting rods 3, 4 threads cut. On both connecting rods 3, 4, a nut is first screwed, then the metal cross member 5 with the help of the corresponding openings on the two connecting rods 3, 4 attached and then screwed two more nuts. The metal cross-member 5 is so quenched between two times two nuts and fixed in this way safely and permanently.

From the Fig. 3c is a toothed washer 9 can be seen. In the installed state (see Fig. 1 ) engages the toothing of the washer 9 frictionally in the toothed area 8 of the metal frame 5 a. The armature 6 is guided through the opening of the washer 9. By a nut screwed onto a thread provided on the anchor 6, the toothing of the washer 9 is brought into engagement with the toothing of the metal cross-member 5 and in this way ensures a frictional connection of the metal cross-member 5 and the armature 6.

LIST OF REFERENCE NUMBERS

1

Plate connecting element

2

insulator

3, 4

connecting rods

5

sheet Traverse

6

anchor

7

gearing

8th

toothed area

9

washer

10, 11, 12

perforations

Claims (7)

1. A slab connection element (1) for connecting a construction part to a slab located in front of the construction part, having

   - an insulating body (2) arranged in the installed state between the construction part and the slab located at the front,

   - at least two connecting rods (3, 4), which in the installed state protrude into the construction part or into the slab located at the front, and which cross one another,

   - at least one sheet-metal crossmember (5) securely connected to the connecting rods (3, 4), and

   - an anchor (6) protruding into the slab located at the front, or into the construction part in the installed state, wherein the anchor (6) is connected to the sheet-metal crossmember (5) in a force-fitting manner,

   wherein the at least two connecting rods (3, 4) pass through the insulating body (2) and cross one another in the region of the insulating body (2),
   characterised in that the insulating body (2) is penetrated exclusively by the connecting rods (3, 4), which cross one another.
2. The slab connection element (1) according to claim 1, characterised in that the two connecting rods (3, 4), which cross one another, essentially run in one plane, particularly essentially in a horizontal plane or essentially in a vertical plane.
3. The slab connection element (1) according to claim 1 or 2, characterised in that the anchor (6) penetrates the sheet-metal crossmember (5) and/or the connecting rods (3, 4) penetrate the sheet-metal crossmember (5) and the connecting rods (3, 4) are screwed to the sheet-metal crossmember (5).
4. The slab connection element (1) according to one of claims 1 to 3, characterised in that the force-fitting connection of the sheet-metal crossmember (5) to the anchor (6) is effected by means of a toothing (7).
5. The slab connection element (1) according to claim 4, characterised in that the sheet-metal crossmember (5) comprises a centrally arranged toothing region (8).
6. The slab connection element (1) according to claim 5, characterised in that a washer (9) comprising a toothing is additionally provided, which in the installed state engages into the toothing region of the sheet-metal crossmember (5) in a force-fitting manner.
7. An arrangement for connecting a construction part to a slab located in front of the construction part, having a slab connection element (1) according to one of claims 1 to 6 and a vertical force element dissipating the vertically acting load of the slab located at the front, wherein the vertical force element is particularly at least one support dissipating the vertically acting load of the slab located at the front, into the ground or at least one suspension or rest dissipating the vertically acting load of the slab located at the front into the construction.

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