EP1959069B1 - Reinforced fill-dam body for a unilaterally thermally insulated prefabricated wall section and prefabricated wall section and method for its production - Google Patents

Abstract

The element (1) has holding elements (6) attached to a flat surface (4) of solid insulating panels (3) and arranged at a distance perpendicular to the flat surface. Reinforcing mats (9) are attached to the holding elements at a distance from the panels. Spacers (10) are arranged at far ends of the holding elements facing away from the panel. The panel includes anchors (18) to attach a support structure to the panel on a flat surface (14), where the anchors protrudes from the flat surface (4). The holding elements are glued to the insulating panel. An independent claim is also included for a method for manufacturing an insulated wall made of concrete with a reinforced insulating element.

Description

The invention relates to a reinforced insulating body for an insulated prefabricated concrete wall and insulation, with at least one insulating board, which is fixed on one side of the insulating board, spaced apart, perpendicular to a first flat side of the insulating board arranged fixing elements, and with at least one remote from the insulation board The fixing elements attached reinforcing mat, wherein spacers are seconded to the insulation panels distant ends of the fixing and / or on the side facing away from the insulation board of the reinforcing mat.

Thermally insulated prefabricated walls are well known, namely as a one-sided insulated as well as core-insulated embodiments. Single-sided prefabricated walls are available in different variants, on the one hand as one-sided insulated prefabricated walls (thermal insulation composite wall), which still need to be poured on the site, or on the other hand as already finished in the factory, one-sided insulated prefabricated walls in which the thermal insulation in shape be pressed by thermal insulation boards on the underlying concrete and connected during curing with this. The production of such Prefabricated part walls is complex and difficult to transport to the construction site due to the transport dimension and the transport weight.

Therefore, it is often desirable to cast prefabricated walls completely on site using prefabricated thermal insulation panels that already have the reinforcement for the precast wall.

Such a reinforced insulating body according to the preamble of claim 1 is known from DE 20 2005 017 046 U1 known. There is disclosed an insulating body for a thermally insulated prefabricated concrete wall and insulation, and a method for producing the same and a precast wall using this insulating body.

The insulating body proposed there has at least one insulating board, at least one side of the insulating board attached to this, spaced apart and perpendicular to the flat side arranged fixing elements, at least one of the fixing elements away from the insulation board to these fixed reinforcement mat, and spacers on the insulation boards far ends the fixing and / or on the side facing away from the insulation board of the reinforcing mat.

It is also known to dress house walls outside with attachment shells, which are ventilated. For this purpose, usually a supporting structure for the attachment shells is anchored with stainless anchor elements on the house wall, where the attachment shells are fastened at a distance from the wall. In one-sided thermally insulated prefabricated walls mounting the support structure is difficult due to the low strength of the outside insulation boards and the low capacity for anchoring forces. In such walls then elaborate anchorages with special anchor elements are required, which extend into the inner concrete shell to remove the forces that arise through the facing shell in the concrete shell.

The invention is therefore based on the object to propose a possibility in which the attachment of an attachment shell is simplified to a composite thermal insulation wall and it also allows to produce insulated prefabricated walls with a support structure easy on the site.

This object is achieved by a reinforced insulating body with the features of claim 1 and by a prefabricated wall with this reinforced insulating body with the features of claim 7, and by a method for producing the same according to the independent method claim 9. Further advantageous embodiments are the respective back related Subclaims refer.

According to the invention, the insulating board of the reinforced insulating body on a second flat side, which faces a first flat side of the insulating board with fixing elements disposed thereon and at least one reinforcing mat attached thereto, a supporting structure which is secured with anchor elements on the insulating board, wherein the anchor elements via protrude the first flat side of the insulation board. This allows after the production of one-sided thermally insulated precast wall any kind of facing shell, for example, brick, wood, clinker, natural stone or board materials to install directly on the precast wall, without making additional or subsequent anchorages. The forces that arise through the facing shell and must be absorbed by the concrete shell are removed by special anchoring elements that are already integrated in the reinforced insulating body. These anchoring elements preferably have low thermal conductivities in order to keep the design-related thermal bridges as low as possible.

The reinforced insulating body has at least one insulating board, at whose concrete shell associated first flat side spaced apart and perpendicular to the flat side arranged fixing elements are attached. The fixing elements extend substantially over the entire width of the flat side and may have the usual lattice girder profile. It is important that the Fixing elements are stably attached to the insulation board to fix the insulation board later during concreting. Furthermore, the reinforced insulating body has at least one reinforcing mat arranged at a distance from the fixing plate on the fixing elements. The reinforcing mat may be attached to the ends of the insulation board or in a central region of the fixing elements. In addition, the reinforced insulating body still has spacers on the ends of the fixing elements remote from the insulating panels and / or on the sides of the reinforcing mat facing away from the insulating panels so as to make a distance from the outer surface of the later concrete wall.

Preferably, the reinforced Dämmkörper has fixing elements with a support plate, which rest against the insulation board, being formed on the support plate in the direction of insulation board facing engagement edges for engagement in corresponding grooves in the insulation board. Thus, the fixing elements are securely and force-transferable to the insulation board fixable, so that the insulation board is firmly connected after concreting the precast concrete wall with their concrete shell.

According to a preferred embodiment of the reinforced insulating body according to the invention, the fixing elements are glued to the insulation board. This allows a simple fast and secure connection of the fixing with the insulation board in the manufacture of the insulating body.

Advantageously, the support structure of the insulating body on spaced apart carrier. The carriers are in contact with the insulation board and are held by the anchor elements. The anchor elements are known, consisting of metal or plastic or carbon fibers substantially cylindrical support anchor. On the carrier fixed by means of the anchor elements further, transverse thereto extending cross member may be provided, which are arranged at a certain distance from each other. The distance between the cross members is determined essentially by the dimensions of the attachment shell elements to be attached to the precast wall.

According to another preferred embodiment of the invention, the support of the support structure lie in grooves of the insulation board with a supernatant. By sinking the support in the insulation board, the facing shell would be attached at a small distance from the insulation board to the precast wall. The supernatant of the carrier with respect to the insulation boards is chosen so that a sufficient ventilation of the facing shell is ensured.

According to a particularly advantageous embodiment of the invention, the reinforced insulating body as a whole is movable and transportable, so that it can also be used on the construction site between vertically arranged formwork panels. The reinforced insulating body can also be manufactured and / or further processed in the factory or on the construction site. It can be used standing either in an existing battery formwork or in a formwork wall composed of individual formwork parts with vertically arranged formwork intermediate spaces. Of course, the reinforced insulating body can also be placed horizontally in a horizontally oriented, upwardly open mold for a thermal composite wall.

The prefabricated part wall according to the invention, with or without facing shell, is produced by using an insulating body with the features described above. In a substantially vertically extending formwork space, the introduction of the insulating body can be done standing from above or laterally not closed formwork space from the side before the shuttering space is closed laterally. The insulating body is fixed in such a way before concreting the precast wall in the formwork space that it can be supported on the formwork panels with the carriers or cross members of the support structure. Thus, it is possible to produce a one-sided insulated prefabricated wall with supporting structure in a vertical position, wherein the free formwork space between the insulating body used and the formwork panels in which extend the fixing, the reinforcement mat and the anchor elements, can be filled from above with in-situ concrete.

In a horizontally extending, upwardly open form of form for a thermal composite wall, the insulating body can also be used lying. In this case, the insulating body can be used with upwardly facing support structure from above into the formwork form, if this is not yet, partially or completely filled with in-situ concrete. The insulating body can also be used first with downwardly facing support structure in the formwork and the shuttering space then be filled with in-situ concrete. For faultless production of the thermal composite wall, it is helpful to shake the in-situ concrete or the insulating body or the formwork and to fix insulating body to the formwork.

1. 1. Herstellen eines Dämmkörpers mit einer Dämmplatte und daran angebrachter Bewehrung und Tragkonstruktion;
2. 2. Bereitstellung eines seitlich abgeschalten Vergussrahmens für Dämmkörper;
3. 3. Einbringen des Dämmkörpers in den Vergussraum und Fixieren im Vergussraum;
4. 4. Befüllen des zwischen den Dämmkörper und der Abschalung gebildeten Hohlraumes mit Ortbeton von oben; und
5. 5. Verdichten des Ortbetons.

According to the inventive method, the production of a one-sided insulated composite precast concrete wall and an insulating panel, with a support structure for a facing shell, in the following steps:

1. 1. producing an insulating body with an insulating board and attached reinforcement and supporting structure;
2. 2. Provision of a laterally switched Vergussrahmens for insulating body;
3. 3. introducing the insulating body in the Vergussraum and fixing in the Vergussraum;
4. 4. filling the cavity formed between the insulating body and the shuttering with in-situ concrete from above; and
5. 5. Compacting the in-situ concrete.

It has proved to be expedient to leave the casting space for the introduction of the insulating body unilaterally on a flat or front side open and only to close when the insulating body is introduced into the Vergussraum, aligned and fixed. This facilitates the necessary work.

1. 1. Bereitstellen einer Dämmplatte;
2. 2. Einbringen von beabstandeten definierten Nuten auf mindestens einer Flachseite;
3. 3. Einbringen von beabstandeten, definierten Löchern in die Dämmplatte;
4. 4. Bereitstellen von Fixierelementen mit einer Tragplatte und aus der Oberfläche herausragenden Eingriffskanten;
5. 5. Verkleben der Fixierelemente auf der Flachseite mit der Tragplatte, wobei die Eingriffskanten in die Nuten der Flachseite eingreifen,
6. 6. Anbringen von Bewehrungsmatten an den Fixierelementen entfernt von der Dämmplatte;
7. 7. Anbringen von Abstandhaltern an den Fixierelementen und/oder Bewehrungsmatten zur Erzeug eines Abstandes zwischen diesen und der Seitenabschalung;
8. 8. Bereitstellen von Ankerelementen und Trägern für die Tragkonstruktion; und
9. 9. Fixieren der Träger mittels den Ankerelementen an der Dämmplatte, wobei sich die Ankerelemente in den Löchern und darüber hinaus erstrecken.

The insulating body is made as follows:

1. 1. providing an insulation board;
2. 2. introducing spaced defined grooves on at least one flat side;
3. 3. introducing spaced, defined holes in the insulation board;
4. 4. Providing fixing with a support plate and protruding from the surface engaging edges;
5. 5. gluing the fixing elements on the flat side with the support plate, wherein the engagement edges engage in the grooves of the flat side,
6. 6. Attaching reinforcing mats to the fixing elements away from the insulation board;
7. 7. Attaching spacers to the fixing elements and / or reinforcing mats for creating a distance between them and the Seitenabschalung;
8. 8. providing anchoring elements and beams for the supporting structure; and
9. 9. Fix the carrier by means of the anchor elements on the insulating board, wherein the anchor elements extend in the holes and beyond.

With the inventively designed reinforced insulating body insulated prefabricated walls can be made with formwork smooth inner walls and with a support structure for facing shells on the outer walls for direct further processing. The vertical production of the walls directly at the site reduces the workload and beyond the transport costs.

The subject matter of the present invention results not only from the subject matter of the individual claims for protection, but also from the combination of the individual claims for protection with one another. Further features of the invention will become apparent from the following description of the embodiment of the invention in conjunction with the claims and the accompanying drawings.

Figur 1

Vertikalschnitte (Figur 1a, 1b), einen Horizontalschnitt (Figur 1c) eines bewehrten Dämmkörpers für eine Wärmedämmverbundwand sowie eine Wärmedämm-Verbundwand (Figur 1d), ohne Tragkonstruktion in einer Vertikalschnittdarstellung gemäß dem Stand der Technik; und

Figur 2

einen Vertikalschnitt (Figur 2a) und eine Draufsicht (Figur 2b) eines erfindungsgemäßen bewehrten Dämmkörpers mit Tragkonstruktion für eine Wärmedämm-Verbundwand sowie eine entsprechenden Horizontalschnitt (Figur 2c) sowie einen Vertikalschnitt einer erfindungsgemäßen Wärmedämm-Verbundwand mit Tragkonstruktion (Figur 2d).

The invention will be explained in more detail with reference to embodiments in conjunction with a reinforced insulating body. Here are from the figures of the drawing and its description further essential features of the invention. They show:

FIG. 1

Vertical sections ( FIG. 1a, 1b ), a horizontal section ( Figure 1c ) of a reinforced insulating body for a thermal insulation composite wall and a thermal insulation composite wall ( Figure 1d ), without supporting structure in a vertical sectional view according to the prior art; and

FIG. 2

a vertical section ( FIG. 2a ) and a plan view ( FIG. 2b ) of a reinforced insulating body according to the invention with a supporting structure for a thermal insulation composite wall and a corresponding horizontal section ( Figure 2c ) and a vertical section of a thermal insulation composite wall according to the invention with supporting structure ( Figure 2d ).

FIG. 1 shows in the FIGS. 1a to 1d in various views a known from the prior art reinforced insulating body 1 'for a thermal insulation composite wall 2'. The reinforced insulating body 1 'has a plurality of stable solid insulation panels 3 of conventional insulation materials. On the one flat side 4 spaced grooves 5 are arranged in the surface, engage in the folds 8 a support plate 7 of the fixing elements 6. The fixing elements 6 are arranged so that they also cover the shock at adjacent insulation boards. The attachment of the fixing elements 6 via an adhesive between the support plate 7 and the flat side 4 of the Insulation board 3. The fixing element 6 has a conventional reinforcing grid 11, which extends perpendicularly from the respective support plate 7 away. At the end of the reinforcing grid 11 of the fixing 6 are still spacers 10 are arranged, the reinforcements 9, 11 of the concrete surface of the finished thermal insulation composite wall 2 'keep away. Figure 1d shows the thermal insulation composite wall 2 'with the finished applied concrete layer 15th

FIG. 2 shows in the FIGS. 2a to 2d an armored insulating body 1 according to the invention for a one-sided insulated prefabricated wall 2, to which an attachment shell 13 can be fastened. The insulating body 1 of the precast wall 2 has on the concrete layer 15 associated flat side 4 in connection with FIG. 1 described construction. The same parts are therefore provided with the same reference numerals. According to the invention, the insulating body 1, a support structure 12 on one of the flat side 4 opposite flat side 14 of the insulation board 3. The support structure 12 consists of a plurality of spaced-apart carriers 16, which engage in grooves 17 of the insulation board 3 and are held by anchor elements 18 in contact with the dam 3. In the illustrated embodiment, the carriers 16 are arranged vertically. Transverse to the supports 16 extend horizontally cross member 19, which together with the carriers 16 form the support structure 12 to which the attachment shell 13 can be fastened. The carriers 16 protrude beyond the flat side 14 of the insulation board 3, so that the cross members 19 have a distance from the insulation board 3, which allows a rear ventilation of the attachment shell 13. The anchor elements 18 extend from the supports 16 through holes 20 in the insulation board 3 in the direction of de reinforcement mat 9 and project beyond the flat side 4 of the insulation board 3. They are anchored with their free ends 21 in the concrete layer 15 of the finished precast wall 2 positive and non-positive. 2c, 2d show the completed insulated prefabricated wall 2 with attached to the support structure 12 attachment shell 13th

Claims (10)

1. Reinforced insulating element (1) for an insulated prefabricated wall made of concrete and insulation, with at least one insulating panel (3) with flat surfaces (4, 14), with holding elements (6) that are attached to a first flat surface (4) of the insulating panel (3) and arranged at a distance from each other perpendicular to the flat surface, and with at least one reinforcing mat (9) attached to the holding elements (6) at a distance from the insulating panel (3), with spacers (10) arranged at the far ends of the holding elements (6) facing away from the insulating panel, and/or on that side of the reinforcing mat (9) that is facing away from the insulating panel (3), characterized by the feature(s) that on a second flat surface (14), the insulating panel (3) has a support structure (12) that is attached to the insulating panel (3) with anchors (18), with the anchors (18) protruding from the first flat surface (4) of the insulating panel (3).
2. Reinforced insulating element according to Claim 1, characterized by the feature(s) that the holding element (6) has a support plate (7) that contacts the insulating panel (3) and has edges (8) preferably pointing in the direction of the insulating panel (3) for the purpose of engaging corresponding grooves (5) in the insulating panel (3).
3. Reinforced insulating element according to Claim 2, characterized by the feature(s) that the holding elements (6) are glued to the insulating panel (3).
4. Reinforced insulating element according to any of the Claims 1 to 3, characterized by the feature(s) that the support structure (12) has beams (16) that are arranged at a distance from each other.
5. Reinforced insulating element according to Claim 4, characterized by the feature(s) that the beams (16) are inserted in grooves (17) of the insulating panel (3), but protrude from its surface.
6. Reinforced insulating element according to any of the preceding Claims, characterized by the feature(s) that the insulating element (1) can be inserted between vertical forms.
7. Prefabricated wall, characterized by a reinforced insulating element (1) according to any of the preceding Claims 1 to 6.
8. Prefabricated wall according to Claim 7, characterized by a face panel (13) attached to the support structure (12) of the insulating element (1).
9. Method for manufacturing an insulated prefabricated wall made of concrete with a reinforced insulating element according to one of the preceding claims 1-8with a support structure, characterized by the following steps:

   > Manufacture of an insulating element with an insulating panel and a reinforcement and support structure attached to it;

   > Preparation of a pouring cavity for the insulating element with lateral forms;

   > Insertion of the insulating element into the pouring cavity and holding it in position there;

   > Filling the cavity between the insulating element and the forms with concrete.
10. Method according to Claim 9, characterized by the feature(s) that the reinforced insulating element is made with the following steps:

    The insulating element is manufactured as follows:

    > Procurement of an insulating panel;

    > Creation of spaced, defined grooves on at least one flat surface of the insulating panel;

    > Creation of spaced, defined holes in the insulating panel;

    > Preparation of holding elements with a support plate and gripping edges protruding from the surface;

    > Gluing of the holding elements with the support plate to the flat surface, with the gripping edges engaging the grooves of the flat surface;

    > Attachment of reinforcing mats to the holding elements at a distance from the insulating panel;

    > Attachment of spacers to the holding elements and/or the reinforcing mats in order to create a separation between them and the lateral forms;

    > Preparation of anchors and beams for the support structure; and

    > Holding the beams to the insulating panel by means of the anchors, with the anchors located in the holes and protruding from them.

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