Structural building element
AssigneeHenley Consultants Limited
InventorJohn Window
Life of this patent
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Abstract
The invention provides a structural building element formed from cold-rolled lightweight sheet steel. The building element may be used as a structural upright or as a beam, and is based generally on building elements with a known C-shaped profile. The profile of the building element of the invention is however based on a continuous curve. Each of a pair of front wall portions extends in a wholly or substantially smooth arc from a central slot opening onto the corresponding lateral side. The rear portion is sinusoidal, comprising a pair of convex wall portions each extending in a wholly or substantially smooth arc from a concave arcuate or substantially arcuate rear central wall portion onto a respective one of the lateral sides.
Claims13
A structural building element formed from cold-rolled lightweight sheet steel, with a generally C-shaped profile having a front comprising a pair of front wall portions extending outwardly from a central slot opening to a pair of lateral sides of the building element, and a rear wall portion joining together the lateral sides, wherein each of the pair of front wall portions extends in a substantially smooth arc from the central slot opening onto the corresponding lateral side, and the rear wall portion comprises a central concave portion bounded by a pair of convex wall portions each extending from a concave arcuate portion of the central concave portion in a smooth arc to a respective one of the lateral sides.
Dependencies are inferred from the claim text.