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US 2023/0140952 A1Published application
Asymmetric functional panel
AssigneePeri SE
InventorsAndreas Spiegl, Guenther Staudenrausch
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AssigneePeri SE
InventorsAndreas Spiegl, Guenther Staudenrausch
Estimating the term…
The invention relates to a functional panel for receiving surface loads comprising a plurality of veneer layers that are arranged one on top of another and are connected together in a materially bonded manner, wherein a part of these veneer layers has an A-fibre direction, and another part of these veneer layers has a B-fibre direction oriented at more or less 90° to the A-fibre direction. The functional panel has a central plane defined substantially in the middle of the functional panel in the in the thickness direction. The cumulative thickness of the veneer layers with the A-fibre direction differs from the cumulative thickness of the veneer layers with the B-fibre direction on a first side of the central plane, and the cumulative thickness of the veneer layers with the A-fibre direction differs from the cumulative thickness of the veneer layers with the B-fibre direction on the second side located on the opposite from the first side of the central plane. As a result, the functional panel has an asymmetric structure in its thickness direction. The invention also relates to the use of a functional panel as a formwork shell for the formwork of a building part, and a method for producing the formwork of a building part with at least one functional panel.
A functional panel (1) for receiving surface loads comprising:
The functional panel (1) according to one of the preceding claims, characterised in that the number of the veneer layers (A, B) is at least 5, preferably at least 6, and/or in that the number of the veneer layers (A, B) is maximally 20, preferably maximally 12, particularly preferred maximally 10.
The functional panel (1) according to one of the preceding claims, characterised in that the thicknesses of the veneer layers (A, B) are identical, or in that the thicknesses of the veneer layers (A, B) have a tolerance range, wherein the tolerance range is maximally +/-20% of the nominal thickness, preferably +/- 10% of the nominal thickness, particularly preferred +/- 5% of the nominal thickness.
The functional panel (1) according to one of the preceding claims, characterised in that the functional panel (1) has a first load direction (R1) which extends parallel to the fibre direction of the cover layer on the pressure side (2) and parallel to the surface of the functional panel (1) forming the pressure side (2), and the functional panel (1) has a second load direction (R2) oriented at right angles to the first load direction (R1), and in that the bending strength and/or the bending modulus of elasticity of the functional panel (1) along the first load direction (R1) differs from the bending strength and/or the bending modulus of elasticity of the functional panel (1) along the second load direction (R2) by a maximum of 30%, preferably by a maximum of 20%, particularly preferred by a maximum of 10%.
The functional panel (1) according to one of the preceding claims, characterised in that a coating (5a, 5b) is applied to the cover layer formed by at least one veneer layer (A, B), wherein the coating (5a, 5b) is made of a material different from the veneer layers (A, B).
Use of a functional panel (1) according to one of the preceding claims as a formwork shell for the formwork of a building part.
Dependencies are inferred from the claim text.