FORMWORK PANEL ELEMENT AND FORMWORK SYSTEM

Abstract

The invention relates to a formwork panel element for shuttering a curable building material, having a frame (2) and having a multilayer formwork skin (3) fastened to the frame (2). The formwork skin (3) has a support panel (4) and a rigid wear panel (5). The support panel (4) is fastened to the frame (2). The wear panel (5) is releasably fixed to the support panel (4). A front side (5a) of the wear panel (5) facing away from the support panel (4) is designed as a surface in contact with the building material. The support panel (4) is fastened to the frame (2) so that it is resistant to tensile stress and shearing, in such a way that the support panel (4) supports the frame (2) statically, the support panel (4) being connected to the frame (2) in a non-releasable manner, or in a manner allowing release under certain conditions.

Claims

1. A formwork panel element (1) for shuttering a curable building material, having a frame (2) and having a multilayer formwork skin (3) fastened to the frame (2), characterized in that the formwork skin (3) has a support panel (4) and a rigid wear panel (5), the support panel (4) being fastened to the frame (2) and the wear panel (5) being releasably fixed to the support panel (4), wherein a front side (5a) of the wear panel (5) facing away from the support panel (4) is designed as a surface in contact with the building material, wherein the support panel (4) is fastened to the frame (2) in a manner which is resistant to tensile stress and shearing, in such a way that the support panel (4) supports the frame (2) statically, the support panel (4) being connected to the frame (2) in a non-releasable manner or in a manner allowing release under certain conditions.

2. The formwork panel element (1) according to claim 1, characterized in that the thickness of the support panel (4) is 30% to 80%, preferably 40% to 80%, more preferably 40% to 70%, particularly preferably 50% to 70%, and very particularly preferably 50% to 60% of the thickness of the formwork skin (3).

3. The formwork panel element (1) according to claim 1 or 2, characterized in that the support panel (4) has a thickness of 6 to 14 mm, preferably 7 to 13 mm, more preferably 8 to 12 mm, particularly preferably 8 to 11 mm, and very particularly preferably 8 to 10 mm, in particular 9 mm.

4. The formwork panel element (1) according to any of claims 1 to 3, characterized in that the support panel (4) is connected to the frame (2) in a non-positive manner and/or in a materially-bonded manner and/or in a positive manner.

5. The formwork panel element (1) according to any of claims 1 to 4, characterized in that the support panel (4) is glued and/or welded and/or soldered and/or riveted and/or screwed and/or nailed to the frame (2).

6. The formwork panel element (1) according to any of claims 1 to 5, characterized in that the support panel (4) is designed as a metal panel, a plastic panel, a panel made of a fiber composite material, a wooden panel, or a composite panel.

7. The formwork panel element (1) according to any of claims 1 to 6, characterized in that the support panel (4) has openings (6a) for detaching, and/or bore holes (6b) for fastening, the wear panel (5).

8. The formwork panel element (1) according to any of claims 1 to 7, characterized in that the support panel (4) is divided into a plurality of support panel segments (40, 41, 42) which each cover corresponding segments (7) of the frame (2).

9. The formwork panel element (1) according to claim 8, characterized in that the frame (2) has, on its front side facing the support panel (4), projections (8) protruding in the direction of the support panel (4), which bound the segments (7), wherein the support panel segments (40, 41, 42) are inserted into the segments (7) in such a way that each of the support panel segments (40, 41, 42) has an edge (9) which rests on at least one of the projections (8), and at least one edge region of the reverse side of the support panel segment (40, 41, 42) which faces the frame (2), said edge region being adjacent to the edge (9), rests against a surface of the front side of the frame (2) which is adjacent to the projection (8).

10. The formwork panel element (1) according to any of claims 1 to 9, characterized in that the wear panel (5) is nailed and/or screwed and/or riveted and/or releasably glued to the support panel (4).

11. The formwork panel element (1) according to any of claims 1 to 10, characterized in that the wear panel (5) has a thickness of 4 to 11 mm, preferably 5 to 10 mm, more preferably 6 to 10 mm, particularly preferably 7 to 10 mm, in particular 8 mm.

12. A formwork system (11) having at least two formwork panel elements (1) according to any of claims 1 to 11, and having a plurality of anchor rods (12) in order to brace the formwork panel elements (1) at a distance from one another.

Description

[0069] The figures show the following:

[0070] FIG. 1 is a perspective view of a reverse side of a formwork panel element according to the invention;

[0071] FIG. 2 is a plan view of a reverse side of a formwork panel element according to the invention;

[0072] FIG. 3 is a schematic side view of a formwork panel element according to the invention;

[0073] FIG. 4 is a schematic plan view of a reverse side of a support panel;

[0074] FIG. 5 is a schematic plan view of a reverse side of a wear panel;

[0075] FIG. 6 is a schematic longitudinal section through a formwork panel element in an embodiment in which a support panel is formed by a plurality of support panel segments; and

[0076] FIG. 7 is a schematic representation of a side view of a formwork system which has at least two formwork panel elements and a plurality of anchor rods in order to brace the formwork panel elements at a distance from one another.

[0077] Formwork systems and formwork panel elements, and methods for shuttering a curable building material, are well known from the general prior art, for which reference is made to DE 10 2018 203 764 A1, by way of example. Therefore, only the features relevant to the invention will be discussed in more detail below.

[0078] FIGS. 1 and 2 show a formwork panel element 1 for shuttering a curable building material. In the embodiment example, the building material is preferably concrete. However, the invention is not limited to this. The embodiment example is to be understood in such a way that instead of concrete, another curable building material can also be used for the formwork.

[0079] The formwork panel element 1 shown in FIG. 1 and FIG. 2 has a frame 2 and a multilayer formwork skin 3 fastened to the frame 2. The frame 2 has a plurality of longitudinal frame parts 2a and a plurality of transverse frame parts 2b. The outer contours of the frame 2 are each formed in this case by two longitudinal frame parts 2a, namely a left and a right longitudinal frame part 2a, and two transverse frame parts 2b, namely an upper and a lower transverse frame part 2b, between which further longitudinal frame parts 2a and transverse frame parts 2b can be formed. Such a design of the frame 2 is particularly advantageous, but the invention and the embodiment examples are not limited to this.

[0080] As can be seen from FIGS. 3, 6 and 7, the formwork skin 3 has a support panel 4 and a rigid wear panel 5. The support panel 4 is fixed to the frame 2. In the embodiment example, it is provided that the support panel 4 is connected to the frame 2 in a non-releasable manner, or in a manner allowing release under certain conditions.

[0081] The front side 5a of the wear panel 5 facing away from the support panel 4 is designed as the surface in contact with the building material. The front side 5a of the wear panel 5 can optionally be designed in such a way that a desired structure is reproduced on the visible side of the concrete structure to be created, for example a wall.

[0082] In the embodiment example, it is provided that the support panel 4 is connected to the frame 2 in such a way that the support panel 4 is connected to the frame 2 over the intended service life thereof, or forms a unit with the frame 2, and generally does not have to be detached.

[0083] In the embodiment example, it can be provided that the support panel 4 is connected to the frame 2 in a non-positive manner and/or in a materially-bonded manner, and/or in a positive manner.

[0084] The support panel 4 is fastened to the frame 2 in such a way that it is resistant to tensile stress and shearing, in such a way that the support panel 4 supports the frame 2 statically. For this purpose, the support panel 3 can be glued and/or welded and/or soldered and/or riveted and/or screwed and/or nailed to the frame 2 in a manner that is not shown in detail.

[0085] In the embodiment example, the support panel 2 is designed in such a way that it absorbs the concrete pressure completely or for the most part, such that the wear panel 5 can be made inexpensively.

[0086] Various materials are available for forming the support panel 4, wherein materials that can absorb the concrete pressure and have only a small amount of deflection are particularly suitable. Furthermore, the material used for the support panel 4 should be weatherproof.

[0087] In the embodiment example, it can be provided that the support panel 4 is designed as a metal panel, as a plastic panel, as a panel made of a fiber composite material, as a wooden panel or as a composite panel. The support panel 4 can in particular also be designed as a foamed plastic panel.

[0088] In the embodiment example, it can be provided in a manner not shown in detail that expanded metal is introduced, preferably welded, into the support panel 4 in order to increase the load-bearing capacity of the support panel 4.

[0089] In the embodiment example, the wear panel 5 is preferably made of plastic, wood or a composite material, in particular a fiber composite material.

[0090] The support panel 4 is formed as a single piece in the embodiment example.

[0091] However, it is also possible to design the support panel 4 in a plurality of layers, for example two or three layers, which means that the support panel 4 is formed from a plurality of panels placed on top of one another, which then form the overall thickness of the support panel 4. In the case of a multilayer design of the support panel 4, provision can be made, for example, for the individual panels to be glued, adhered or riveted to one another.

[0092] In the embodiment example, it is provided that the thickness of the support panel 4 is 30% to 80%, preferably 40% to 80%, more preferably 40% to 70%, particularly preferably 50% to 70% and very particularly preferably 50% to 60% of the thickness of the formwork skin 3.

[0093] In the embodiment example, it is also provided that the support panel 4 has a thickness of 6 to 14 mm, preferably 7 to 13 mm, more preferably 8 to 12 mm, particularly preferably 8 to 11 mm and very particularly preferably 8 to 10 mm, in particular 9 mm.

[0094] It has proven to be advantageous if the support panel 4 has a thickness that is greater than the thickness of the wear panel 5, such that the support panel 4 prevents the rigid wear panel 5 from bending. However, it is also possible, for example, for the support panel 4 and the wear panel 5 to have an identical thickness, in particular such that the support panel 4 has a thickness of 9 mm and the wear panel 5 also has a thickness of 9 mm.

[0095] In the embodiment example, the wear panel 5 has a thickness of 4 to 11 mm, preferably 5 to 10 mm, more preferably 6 to 10 mm, particularly preferably 7 to 10 mm, in particular 8 mm.

[0096] In the embodiment example, it is provided that the thickness of the formwork skin 3, which is composed of the support panel 4 and the wear panel 5, is between 10 and 25 mm, preferably between 12 and 23 mm, more preferably between 14 and 22 mm, particularly preferably between 15 and 21 mm, in particular between 16 and 20 mm.

[0097] In the embodiment example, provision is made for the wear panel 5 to be releasably fixed to the support panel 4. For this purpose, the wear panel 5 can preferably be nailed and/or screwed and/or riveted and/or releasably glued to the support panel 4.

[0098] A detachable adhesive is preferably provided for gluing the wear panel 5 to the support panel 4.

[0099] The support panel 4 has openings 6a for this detachment, in particular for pressing out the wear panel 5. Furthermore, the support panel 4 in the embodiment example has bore holes 6b for fastening the wear panel 5, preferably in order to screw into the wear panel 5 from behind, or rivet through it. The openings 6a for the detachment and the bore holes 6b for fastening the wear panel 5 are shown in FIG. 4 by way of example.

[0100] The support panel 4, in particular the reverse side of the support panel 4, as shown in FIG. 4, is preferably designed to be light-resistant. The reverse side of the support panel 4 is preferably designed in such a way that it is suitable for applying an advertising print, and the back can be cleaned with a high-pressure cleaner without the support panel 4 being damaged.

[0101] FIG. 5 schematically shows the reverse side of the wear panel 5. The wear panel 5 preferably has the same height and the same width as the support panel 4. The wear panel 5 can have bore holes in a manner not shown in order to facilitate screwing or riveting to the support panel 4.

[0102] A specific embodiment of the support panel 4 is shown in FIG. 6. It is provided in this case that the support panel 4 is divided into a plurality of support panel segments 40, 41, 42, which each cover corresponding segments 7 of the frame 2. Three support panel segments 40, 41, 42 are shown in FIG. 6, but as little as two support panel segments, or more than three support panel segments, can also be provided.

[0103] In the embodiment example according to FIG. 6, it is provided that the frame 2 has, on its front side facing the support panel 4, projections 8 protruding in the direction of the support panel 4, which bound the segments 7 of the frame 2, the support panel segments 40, 41, 42 being inserted into the segments 7 in such a way that each of the support panel segments 40, 41, 42 has an edge 9 which rests on at least one of the projections 8, and at least one edge region of the reverse side of the support panel segment 40, 41, 42 which faces the frame 2, said edge region being adjacent to the edge 9, rests against a surface of the front side of the frame 2 which is adjacent to the projection 8. This is shown schematically in FIG. 6.

[0104] The frame 2 with the projections 8 is thus designed in such a way that a movement of the support panel segments 40, 41, 42 in the plane of the support panel segments 40, 41, 42 is limited by the projections 8, wherein the frame 2—or the form of the projections 8—forms a shoulder on which the support panel segments 40, 41, 42 can rest on an edge area of their reverse side, such that a concrete pressure acting orthogonally to the plane of the support panel segments 40, 41, 42 can be directed from the reverse side of the support panel segments 40, 41, 42 into the shoulder and/or the frame 2.

[0105] FIG. 6 shows a longitudinal section through a formwork panel element 1—that is to say, a section through the formwork panel element 1 from the upper transverse frame part 2b to the lower transverse frame part 2b. The support panel segments 40, 41, 42 are thus arranged one above the other. In principle, however, provision can also be made for the support panel segments 40, 41, 42 to be arranged side by side—that is, the support panel segments 40, 41, 42 are not arranged horizontally one above the other, but vertically next to one another. In principle, it is also possible for the support panel segments 40, 41, 42 to be arranged both laterally next to one another and one above the other, such that the support panel segments 40, 41, 42 are arranged similarly to a chess board, and each cover segments 7 of the frame 2.

[0106] FIG. 7 is a schematic illustration of a formwork system 11 having (at least) two formwork panel elements 1, and having a plurality of anchor rods 12 in order to brace the formwork panel elements 1 at a distance from one another.

[0107] According to this principle, a plurality of formwork panel elements 1 can be connected to one another in a manner known in principle in such a way that they together form a formwork for shuttering a curable building material, in particular concrete.

[0108] FIG. 7 shows by way of example that the formwork system 11 is formed by two formwork panel elements 1 according to the invention.

[0109] In principle, it can be provided that only a portion of the formwork panel elements 1 is equipped according to the invention. However, it makes sense to design all formwork panel elements 1 according to the invention—that is, in such a way that the formwork skin 3 is formed by a support panel 4 and a wear panel 5. The anchor rods 12 are only shown schematically in FIG. 7. As illustrated, it is preferably provided that the anchor rods 12 each have two anchor cones 13. Furthermore, anchor fixations in the form of nuts 14 are shown in FIG. 7. Two are screwed onto each of the anchor rods 12 in order to brace the formwork panel elements 1. This illustration is purely an example.

[0110] For bracing the formwork panel elements 1, an anchoring technique that can be applied from one or both sides can be used, and spacer tubes or cladding tubes can also be used.