| 摘要 |
<p>A building panel for use in walls or roofs the panel being formed from a sheet of material the sheet being rectangular and made up of four portions (10, 11, 12, 13) the surfaces of each of which are in the form of a hyperbolic paraboloid, the edges of the portions meeting on transverse axes (1-3, 2-4) of the panel, corners of said portions meeting at a central point (5) displaced from a plane containing the periphery of the panel. The panel being capable of acting as both the covering and a structural member spanning between frames of a structure thus avoiding the necessity for using pylons, the invention also consists in the use of such panels in a building structure.</p> |
