DE8103468U1 - PANEL-SHAPED PRECASTED PART FOR THE PRODUCTION OF BALCONIES AND THE LIKE - Google Patents

Description

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The innovation: concerns a precast concrete element reinforced with structural steel wires or mats in the form of a plate for Creation of balconies and other platforms and the like protruding from the building line part of which is inside the building and is anchored there, as well as a building using this precast concrete part.

It is already known that balconies and other platforms protruding from the escape of a building can be produced as precast concrete using structural steel wires or mats are reinforced. It is disadvantageous with these prefabricated parts and also with in situ during construction cast reinforced plates so that they form a thermal bridge and break through the insulation layer of the load-bearing masonry. The one for isolation Regulations and standards existing in buildings cannot therefore be complied with with the known concrete slabs will. Calculations and experience have shown that the heat losses caused by the "thermal bridges" can be considerable.

In contrast, it is the task of the innovation to create a precast concrete part in which the aforementioned Disadvantages no longer occur and at what it is

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is possible to create sufficient insulation. In particular, the insulation should also be in the area of the the masonry and the insulating layer penetrating platforms must be as high as the insulation is in

corresponds to the other areas and the innovations

according to precast concrete elements should be simple and economical to manufacture.

This object is r ^{neüerungsgemäß:} solved in that the finished part a parallel after installation to the building line strip has a lightweight concrete with closed structure and at least a part of the reinforcing wires or mats integrally in both the outer part and the lightweight concrete strips and the inner part extends "

The lightweight concrete strip advantageously consists of a closed structure without natural sand with lightweight aggregates such as expanded clay and the like and has an additional reinforcement, which is a closed Can form a rectangle.

To allow the parts of the precast concrete element to move with one another to absorb the various transverse forces to allow without affecting the structure of the prefabricated part

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is adversely affected, the lightweight concrete strip can advantageously at its longitudinal end faces have a central groove and the inner and outer parts have a correspondingly rounded, engaging in the groove web.

It is advantageous to attach the precast concrete part in a structure with a load-bearing masonry, one insulation layer attached to the outside and a facing masonry layer attached at a distance in front of it such that the front edge of the lightweight concrete strip is flush with the outer edge of the insulation layer and A bearing is arranged between the outer part of the prefabricated part and the facing masonry.

Obviously, the new precast concrete element creates the possibility for the first time to avoid the need for bridges in the production of balconies and other platforms that protrude from the alignment of a building, and given the simple manufacture of the precast concrete element according to the invention, an ideal solution to the problems at hand to be spoken.

The following are examples of the innovation

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described in more detail with reference to drawings. Show it:

Figure 1 is a schematic sectional view of a built-in precast concrete part according to the innovation and

Figure 2 shows a slightly modified embodiment of the Item according to Figure 1.

According to the figures, the precast concrete part consists of an outer, conventional reinforced concrete slab corresponding outer part, an inner part also corresponding to a conventional reinforced concrete slab Part, between which a light concrete strip 6 is arranged. A reinforcement 8 in the form of structural steel wires or mats extends in one piece both through the outer part 5 and the lightweight concrete strip 6 and the inner part 7 of the plate. The lightweight concrete strip 6 consists of a closed structure without natural sand with lightweight aggregates 11, such as Expanded clay and the like, and has an additional reinforcement 12 in the form of a closed rectangle on. The lightweight concrete strip 6 has a heat transfer coefficient that corresponds to an insulation according to FIG Outside on the masonry 1 applied insulation layer 2 including the insulation effect of the

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Gap between the insulation layer 2 and the facing brickwork 3 corresponds and closes a heat conduction within the precast concrete part from the inside outside in an impermissible manner. Between the outer part 5 of the prefabricated part and the facing masonry 3 a bearing 4 is arranged below the prefabricated part, which can be designed as a plain bearing. the According to FIG. 1, the front edge of the lightweight concrete strip 6 can be combined with the outer edge of the insulation layer 2 align, but it can also be pulled up into the facing masonry 4 (Figure 2).

Surprisingly for the person skilled in the art, it has been shown that the extremely poorly thermally conductive lightweight concrete strip due to its reinforcement and the continuous reinforcement 8, the forces that occur statically are sufficient able to take up, whereby the connection between the individual parts of the Eeton prefabricated part also with different The thermal expansion behavior of the individual parts remains sufficient.

According to Figure 2, the lightweight concrete strip can continue to be centered on its longitudinal end faces have a rounded groove 9 and the inner and outer parts (7) and 5 each have a corresponding

rounded web 10 engaging in the groove. In this case, the additional reinforcement 12 is the lightweight concrete strip 6 equipped with wires running diagonally inwards and upwards, which form a closed Form a cuboid.

The production of the reinforced concrete prefabricated part according to the invention is expediently carried out in such a way that either with the continuous reinforcement 8 only the lightweight concrete strips or the two inner and outer reinforced concrete parts to be poured. After the cast part or parts has hardened sufficiently, the missing part additionally cast in or cast on. Alternatively, however, simultaneous pouring can also be used the parts take place, with the simultaneous hardening of a particularly good connection of the end faces of the lightweight concrete strip and the parts 5 and 7 corresponding to the conventional reinforced concrete parts.

The claims and the text refer to the production of the lightweight concrete strip 6 from a closed structure pointed out without natural sand. For the person skilled in the art, natural sand can of course also be used, if suitable Measures are taken to ensure that the lightweight concrete strip has the necessary low thermal conductivity and at the same time has the required strength. The term "closed structure without natural sand" is therefore to be understood purely as an example.

Claims (4)

• f ■ »* ■ # Αηπι .: P. Quinting Ref .: G 81 03 468.7 New claims for protection 1. Plate-shaped precast concrete part for production of balconies and the like, which has parts provided with reinforcing wires or mats, characterized in that parallel to these parts (5, 7) therebetween a lightweight concrete strip (6) closed structure, and at least part of the reinforcement wires or mats (8) integral both in parts (5, 7) and runs in the lightweight concrete strip (6). 2. Plate-shaped precast concrete part according to claim 1, characterized in that the lightweight concrete strip (6) from a closed structure without natural sand with lightweight aggregates (11) such as expanded clay and the like exists and has an additional reinforcement (12). 3. Plate-shaped precast concrete part according to claim 2, characterized in that the additional reinforcement (12) forms a closed rectangle. 4. Plate-shaped precast concrete part according to one of the claims 1-3, characterized in that the lightweight concrete strip (6) on its longitudinal front . - ** w ^ -m -TT I suffered I 111 " 1 II "· I I I I)) 1 · • · · «I 1 111 «· * Llltl Il III · surfaces in the middle a groove (9) and the parts (5, 7) a correspondingly rounded, engaging in the groove Have web (10).