Panel for a building structure having a predefined curvature and a method of manufacturing such panel
A panel for a building structure has a predefined curvature. The panel has a generally rectangular shape with a curvature, such that the panel has a convex outer surface and a concave inner surface with a set of side edge regions and a set of end edge regions. The panel is at least one mineral wool fibre slab with a plurality of first strips adhered to the outer surface and a plurality of second strips adhered to the inner surface.
1. A panel for a building structure, comprising:
a panel having a predefined curvature, the panel having a generally rectangular shape with a curvature, such that the panel has a convex outer surface and a concave inner surface with a set of side edge regions and a set of end edge regions;
the panel comprising at least one mineral wool fibre slab with a plurality of first strips adhered to the outer surface and a plurality of second strips adhered to the inner surface,
wherein the panel consists of:
the at least one mineral wool fibre slab having a density within the range of 70 to 180 kg/m3,
the plurality of first strips and the plurality of second strips extending in a longitudinal direction of the panel from one of the set of end edge regions to the other one of the set of end edge regions, and
an adhesive provided such that the plurality of first strips are adhered to the outer surface of the mineral wool fibre slab and the plurality of second strips are adhered to the inner surface of the mineral wool fibre slab, and
wherein the panel extending vertically between the set of end edge regions has a middle portion between the set of end edge regions and wherein the mineral wool fibre slab is exposed at the middle portion between the first strips to an exterior of the building structure and the mineral wool fiber slab is exposed at the middle portion between the second strips to an interior of the building structure.
2. The panel according to claim 1 , wherein the mineral wool slab has a density of approx. 90 kg/m3.
3. The panel according to claim 1 , wherein the first strips and the second strips are arranged substantially parallel to each other on the convex outer surface and the concave inner surface, respectively.
4. The panel according to claim 1 , wherein the strips each extends on the respective outer and inner surfaces between end edges of the end edge regions.
5. The panel according to claim 1 , wherein the strips are metal strips.
6. The panel according to claim 5 , wherein the metal strips are made of thin steel sheets.
7. The panel according to claim 5 , wherein the metal strips are galvanised.
8. The panel according to claim 1 , wherein the at least one mineral wool fibre slab comprises a plurality of mineral wool fibre slabs provided in succession, and each strip straddles all of the mineral wool fibre slabs.
9. The panel according to claim 1 , wherein the panel is provided with a predefined curvature, which is essentially a half-span of a building structure.
10. A building structure comprising a plurality of panels according to claim 1 .
11. A method of manufacturing a panel for a building structure according to claim 1 , comprising the steps of:
providing a panel form with a predefined curvature; and
placing one or more of the plurality of first strips in the panel form; and then
adhesively fixing the at least one mineral fibre slab to the one or more of the plurality of first strips by placing the at least one mineral fibre slab in the panel form; and then
providing a layer of adhesive onto the inner surface of the at least one mineral fibre slab; and then
placing one or more of the plurality of second strips in the panel form such that the one or more of the plurality of second strips become adhesively fixed to the at least one mineral fibre slab.
12. The method according to claim 11 , further comprising:
providing a counter form with a curvature shape congruently shaped relative to the predefined curvature of the panel form; and
positioning the counter form against the innermost surface of the panel.
13. The method according to claim 12 , further comprising biasing the counter form against the panel form to clamp the first and second strips against the at least one mineral wool fibre slab while the adhesive is curing.
14. The method according to claim 12 , wherein the panel form is a negative form with a predefined concave curvature.
15. The method according to claim 12 , wherein the panel form is a positive form with a predefined convex curvature.
16. The panel according to claim 1 , wherein the first strips are adhered directly to the outer surface of the at least one mineral wool fibre slab, and the second strips are adhered directly to the inner surface of the at least one mineral wool fibre slab.
17. The panel according to claim 1 , wherein:
each of the first strips is spaced apart from each other on the outer surface and adhered to the at least one mineral wool fibre slab without horizontal connections between the first strips on the outer surface in the middle portion of the panel; and
each of the second strips is spaced apart from each other on the inner surface and adhered to the at least one mineral wool fibre slab without horizontal connections between the second strips on the inner surface in the middle portion of the panel.
18. The panel according to claim 1 , wherein a seam between the adjacent ones of a plurality of mineral wool fibre slabs is exposed on the outer surface between the first strips, and the seam is exposed on the inner surface between the second strips.
19. The panel according to claim 16 , wherein:
each of the first strips is spaced apart from each other on the outer surface and adhered to the at least one mineral wool fibre slab without horizontal connections between the first strips on the outer surface in the middle portion of the panel; and
each of the second strips is spaced apart from each other on the inner surface and adhered to the at least one mineral wool fibre slab without horizontal connections between the second strips on the inner surface in the middle portion of the panel.
20. The panel according to claim 16 , wherein a seam between adjacent ones of a plurality of mineral wool fibre slabs is exposed on the outer surface of mineral wool fibre slabs between the first strips, and the seam is exposed on the inner surface between the second strips.
21. The panel according to claim 17 , wherein one of the end edge regions is a ground level end edge region and the other of the end edge regions is a building top end edge region.
22. A panel for a building structure, comprising:
a panel having a predefined curvature, the panel having a generally rectangular shape with a curvature, such that the panel has a convex outer surface and a concave inner surface with a set of side edge regions and a set of end edge regions;
the panel comprising at least one mineral wool fibre slab with a plurality of first strips adhered to the outer surface and a plurality of second strips adhered to the inner surface,
wherein the panel consists of:
the at least one mineral wool fibre slab having a density within the range of 70 to 180 kg/m3,
the plurality of first strips and the plurality of second strips extending in a longitudinal direction of the panel from one of the set of end edge regions to the other one of the set of end edge regions, and
an adhesive provided such that the plurality of first strips are adhered to the outer surface of the mineral wool fibre slab and the plurality of second strips are adhered to the inner surface of the mineral wool fibre slab,
wherein a seam between the adjacent ones of a plurality of mineral wool fibre slabs is exposed on the outer surface between the first strips, and the seam is exposed on the inner surface between the second strips.