Patent ID: 6092349
Filing Date: 2000-07-25
Classification: E04C

Abstract:
An elongate structural member having a substantially uniform material gauge, said member comprising at least one web element and at least one flange element, wherein said member has a means for stiffening in the longitudinal direction of said member, said means comprising a plurality of corrugations being a plurality of stiffeners contiguous one another and formed in an opposite direction relative to a contiguous stiffener, without there being a flat spacing between said contiguous stiffeners, said plurality of stiffeners being formed at least in the at least one flange element and wherein said at least one web element does not have corrugations located at or adjacent a centerline of said at least one web element in a longitudinal direction of said at least one web element, said plurality of corrugations in the at least one flange element resulting in a maximization of a second moment of area for said elongate structural member.