EP2050885B1 - Assembly component for self-supporting roof or wall panels - Google Patents

Abstract

The component (1) has a mineral plate element that reinforces a lattice girder (9) exhibited with a lower boom element, upper boom element (14) and lattice girder bars (12, 13) provided between the boom elements. A heat insulating material is arranged on the plate element. A porous concrete primary layer (7) with a gross density between 700 and 800 kilogram/cubic meter is combined with a porous concrete insulating material (8) with the gross density between 80 and 120 kilogram/cubic meter by hydrothermal hardening reaction as a single piece.

Description

The invention relates to a mounting component for creating a self-supporting roof panel or wall panel according to the preamble of claim 1.
document EP-A-0 924 175 discloses a mounting component according to the preamble of claim 1.
Self-supporting prefabricated roof panels are z. B. from the EP 0 494 612 B1 known. Among other things, they are made of reinforced lightweight concrete. The reinforcement consists of extending in the direction of the roof slope, arranged side by side, possibly braced by cross bars or mesh mats in the transverse direction straps, z. As T or I carriers or lattice girders, z. B. of metal, wherein the lower flange of the carrier is disposed within the roof panel and the webs of the carrier pass through the concrete, so that the webs are partially arranged and the upper flange completely outside the concrete. Crossbeams are attached to the upper flange, which carry the roofing.

For thermal insulation, the roof panel is made in several parts, on the concrete slab roof outside an insulation of z. B. insulating mats is provided. The insulation can also be produced by direct foaming on the plate. The bar elements of the reinforcement are enclosed by the insulation, but still protrude overhanging as well as the upper straps and crossbars out of the insulation.

The disadvantage is that the insulation takes place at the construction site. This requires an additional expert, is in need of control and time consuming.

Another disadvantage is that the protruding from the board or protruding parts of the reinforcement, namely the webs, the upper straps and the cross member, make the components bulky and affect their stackability and in particular the transport to the site.

A further disadvantage is that the insulating material of rodents can be destroyed, the insulation is at least deteriorated.

The object of the invention is to provide a prefabricated armored mounting component for a self-supporting roof panel, the heat-insulating insulation requires no additional effort on the site and in particular is well stackable and not endangered by rodents.

This object is solved by the features of claim 1. Advantageous developments of the invention are characterized in the subclaims.

The invention provides a in the factory by the aerated concrete technology in one production cycle or in one operation as prefabricated produced, reinforced with a reinforcement mounting member with a one-piece integrated thermal insulation layer of similar mineral material, namely aerated concrete, which acts as a thermal barrier coating aerated concrete layer a significantly lower heat conduction has as the supporting, the strength of the component substantially ensuring aerated concrete base layer in which the lower flange of the reinforcement beam is located.

It is basically sufficient if the mounting component according to the invention is formed in two layers. Nevertheless, it is It is within the scope of the invention to provide more than one insulating layer or thermal barrier layer of cellular concrete, these layers preferably have different thermal conductivities. The further layer can also be an aerated concrete layer which has a higher bulk density.

The two aerated concrete layers are inseparable from one another at their interfaces due to their production. In the manufacturing process, the second thermal barrier coating is poured onto the not yet autoclaved, in particular on the already strengthened, in particular also expanded first layer. It is within the scope of the invention to pour the other way around, namely first to introduce the thermal barrier coating and pour the base layer on the not yet autoclaved, in particular on the already strengthened, in particular also expanded thermal barrier coating as a second layer. In the autoclave process, which is known to follow the blowing process and in which the hardening takes place by calcium silicate hydrate phase formation, the calcium silicate hydrate phases grow together in the boundary region of the layers, resulting in a particularly intimate bond that is not affected by weathering or water and water vapor and mechanical effects.

Since the assembly component according to the invention is constructed completely mineral, it is also nagetiersicher, heat-insulating and, above all, sound-absorbing.

Höhe:

200 bis 500, insbesondere 250 bis 400 mm

Breite:

625 bis 2500, insbesondere 1500 bis 2250 mm

Länge:

1000 bis 9000, insbesondere 6000 bis 8000 mm

The assembly components according to the invention can be produced with customary body construction and precast construction dimensions. But it can also be produced assembly component with excessive, not yet possible dimensions. Preferably, the following dimensions are selected:

Height:

200 to 500, in particular 250 to 400 mm

Width:

625 to 2500, in particular 1500 to 2250 mm

Length:

1000 to 9000, in particular 6000 to 8000 mm

The base layer preferably has a bulk density between 500 and 1000, in particular between 700 and 800 kg / m ³ .

The bulk density of the thermal barrier coating is preferably between 60 and 200, in particular between 80 and 120 kg / m ³ .

• Wärmedämmschicht:
  0,030 bis 0,050, insbesondere 0,035 bis 0,045 W/(mK)
• Grundschicht:
  0,12 bis 0,20, insbesondere 0,14 bis 0,18 W/(mK)

The thermal conductivities λ of the two layers are expediently as follows:

• Thermal insulation layer:
  0.030 to 0.050, in particular 0.035 to 0.045 W / (mK)
• Base layer:
  0.12 to 0.20, in particular 0.14 to 0.18 W / (mK)

Wärmedämmschicht:

0,1 bis 1,0, insbesondere 0,2 bis 0,4 N/mm²

Grundschicht:

5 bis 12, insbesondere 7,5 bis 10 N/mm²

The compressive strengths of the two layers are expediently:

Thermal insulation layer:

0.1 to 1.0, in particular 0.2 to 0.4 N / mm ²

Base layer:

5 to 12, especially 7.5 to 10 N / mm ²

Wärmedämmschicht:

50 bis 400, insbesondere 150 bis 300 mm

Grundschicht:

50 bis 200, insbesondere 70 bis 90 mm

The thickness of the layers is, for example:

Thermal insulation layer:

50 to 400, in particular 150 to 300 mm

Base layer:

50 to 200, in particular 70 to 90 mm

A preferred embodiment of the invention provides that the mounting components are cuboid, wherein neither reinforcement parts nor cross member project beyond any surface. Other shapes as special elements are also possible.

As reinforcement T-beams and I-beams can be used. Preferably, however, so-called lattice girders are used, as z. B. in the EP 0 494 612 B1 are disclosed. These lattice girders have two Untergurtträgerstränge, to the respective webs at an angle of z. B. 45 ° to the thermal barrier layer are arranged projecting. The webs of Untergurtstränge are ridge-like inclined to each other, wherein at the free ends of the webs a Obergurtelement is provided. On the upper belt element cross member elements are fixed, the outer contours or outer surfaces are aligned with the outer surface of the mounting component, in which they open. In this respect, all reinforcement parts and in particular also the cross member elements are arranged within the cuboid shape or the outer contour of the assembly component.

The cross member elements are z. B. transversely through the mounting component going transverse batten slats or extending in the longitudinal direction of the mounting member Längskonterlatten, fastened to the respective cross member slats or longitudinal support slats of a roof covering, z. B. are nailable. Between the mounting member and the carrier slats other layers, for. B. roofing membranes are arranged.

Fig. 1

schematisch einen Querschnitt durch ein erfindungsgemäßes Montagebauteil;

Fig. 2

schematisch einen Teil-Querschnitt durch einen Bereich des Montagebauteils, in dem ein Gitterträger angeordnet ist;

Fig. 3

schematisch einen Teil-Längsschnitt durch ein Montagebauteil im Bereich eines Gitterträgers;

Reference to the drawing, the invention will be explained in more detail below by way of example. Show it:

Fig. 1

schematically a cross section through an inventive mounting member;

Fig. 2

schematically a partial cross-section through a portion of the mounting member in which a lattice girder is arranged;

Fig. 3

schematically a partial longitudinal section through a mounting member in the region of a lattice girder;

Lattice girders which are useful for the purposes of the invention are usually custom-made and suitably coated with a corrosion inhibitor.

An inventive assembly component 1 of aerated concrete ( Fig. 1 ) is substantially cuboid with a specific for the roof inner surface 2, a specific for the roof outer side outer surface 3 and two side surfaces 4, 5. On the side surfaces 4, 5 groove-spring elements 6 may be provided.

The mounting component 1 has a roof inner side porous concrete base layer 7 with a relatively dense and solid porous concrete structure and the roof outside a Porenbetondämmschicht 8 with a significantly lower bulk density and lower strength.

In the transverse direction parallel to one another, a plurality of lattice girders 9 extending in the longitudinal direction of the mounting component, in the illustrated example, are completely embedded in the aerated concrete layers 7, 8, the lattice girders 9 being expediently identical. They each have two, the base layer 7 passing through parallel, arranged in a parallel to the base 2 level located Untergurtstränge 10, 11, on each of which lattice girders 12, 13 are arranged, which are arranged conically or obliquely inclined to each other continuously and just below the outer surface 3 ends.

In the free end region, the webs 12, 13 carry a Obergurtelement 14, the z. B. may be a strand of a reinforcing steel. Conveniently, the upper belt member 14 is a U-profile 15, in which a counter battens 16 of z. B. Wood stores ( Fig. 2, 3rd ). The webs 12, 13 may, for. B. consist of wavy curved strands ( Fig. 3 ), which are each secured in bow areas 17 on Obergurt- and Untergurtelement.

Advantageously, the lattice girder 9 consists mainly of reinforcing steel strands.

Conveniently, sit on the Untergurtsträngen 10, 11 spacer elements 18, which extend to the base 2. These can be made of metal, aerated concrete, concrete or plastic.

Preferably, at least one transverse reinforcement element 7a is provided in the base layer 7, the z. B. is arranged in the region of the lower belt elements of the lattice girder 9 and supports or ensures the reinforcement in the transverse direction of the mounting component. The transverse reinforcement element may, for. B. consist of several spaced apart adjacent reinforcing steels or lattice mats.

The lower transverse reinforcement 7a may be a comb-like element or perforated plate (not shown), which prevents spreading of the lattice girders and is easy to assemble, for example by plugging.

The mounting component according to the invention is also particularly useful as a wall plate by it to appropriate vertical pillars or horizontal beams is attached. The assembly component ensures heat, moisture and sound insulation.

Claims (19)

1. Assembly component (1) for creating a self-supporting roof panel or wall panel, comprising a mineral panel element (7), which is reinforced by a reinforcing beam (9), comprising at least one lower flange element (10, 11), at least one upper flange element (14) and in between at least one web element (12, 13), and on which a heat insulating element (8) is arranged in the manner of a layer, the lower flange of the reinforcing beam being embedded in the panel element and the web element of the reinforcing beam passing through the panel element and the heat insulating element, characterized in that the assembly component (1) consists of aerated concrete, an aerated concrete base layer (7) with an apparent density of between 500 and 1000, particularly between 700 and 800 kg/m³, being combined in one piece with an aerated concrete insulating layer (8) with an apparent density of between 60 and 200, particularly between 80 and 120 kg/m³, by hydrothermal setting reactions.
2. Assembly component according to Claim 1, characterized in that at least one further aerated concrete layer, which has a different apparent density, is combined with the aerated concrete insulating layer (8) by hydrothermal setting reactions.
3. Assembly component according to Claim 1 and/or 2, characterized in that it is of a cuboidal form.
4. Assembly component according to one or more of Claims 1 to 3, characterized in that no component parts of the reinforcing beam or component parts of functional parts that are connected to the reinforcing beam protrude from the outer contour of the aerated concrete body of the assembly component.
5. Assembly component according to one or more of Claims 1 to 4, characterized by the following dimensions: height: 200 to 500, particularly 250 to 400 mm width: 625 to 2500, particularly 1500 to 2250 mm length: 1000 to 9000, particularly 6000 to 8000 mm.
6. Assembly component according to one or more of Claims 1 to 5, characterized by the following thermal conductivities: λ heat insulating layer: 0.030 to 0.050, particularly 0.035 to 0.045 W/ (mK) λ base layer: 0.12 to 0.20, particularly 0.14 to 0.18 W/(mK).
7. Assembly component according to one or more of Claims 1 to 6, characterized by the following compressive strengths: heat insulating layer: 0.1 to 1.0, particularly 0.2 to 0.4 N/mm² base layer: 5 to 12, particularly 7.5 to 10 N/mm².
8. Assembly component according to one or more of Claims 1 to 7, characterized by the following layer thicknesses: heat insulating layer: 50 to 400, particularly 150 to 300 mm base layer: 50 to 200, particularly 70 to 90 mm.
9. Assembly component according to one or more of Claims 1 to 8, characterized in that the assembly component has a planar base area (2), intended for the inner side of the roof, a planar outer area (3), intended for the outer side of the roof, and two side areas (4, 5).
10. Assembly component according to Claim 9, characterized in that tongue-and-groove elements (6) extending in the longitudinal direction are provided on the side areas (4, 5).
11. Assembly component according to one or more of Claims 1 to 10, characterized in that a number of lattice girders (9), extending in the longitudinal direction of the assembly component and parallel to one another in the transverse direction are completely embedded in the aerated concrete layers (7, 8) as reinforcing beams, the lattice girders (9) expediently having an identical form.
12. Assembly component according to Claim 11, characterized in that the lattice girders (9) have in each case two lower flange strands (10, 11), which pass through the base layer (7), are arranged parallel to each other and on each of which lattice girder webs (12, 13) are arranged in a conical or obliquely converging manner, ending just below the outer area (3).
13. Assembly component according to Claim 12, characterized in that the webs (12, 13) carry in their free end region an upper flange element (14), which may for example be a strand made of a reinforcing steel.
14. Assembly component according to Claim 13, characterized in that the upper flange element (14) is combined with a U section (15) or is formed as a U section (15), in which a counter-lathing (16), for example made of wood, is mounted.
15. Assembly component according to one or more of Claims 11 to 14, characterized in that the webs (12, 13) consist of strands bent in an undulating form, which are fastened respectively in arc regions (17) to the upper flange element and lower flange element.
16. Assembly component according to one or more of Claims 11 to 15, characterized in that the lattice girders (9) consist primarily of reinforcing steel strands.
17. Assembly component according to one or more of Claims 11 to 16, characterized in that at least one spacer element (18) is arranged on at least one lower flange element and extends as far as the base area (2).
18. Assembly component according to one or more of Claims 11 to 17, characterized in that at least one transverse reinforcing element (7a), which is preferably arranged in the region of the lower flange elements of the lattice girders (9), is provided in the base layer (7).
19. Assembly component according to Claim 18, characterized in that the transverse reinforcing element (7a) consists of a number of reinforcing rods arranged spaced apart next to one another and/or reinforcing mesh mats.

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