Patent ID: 6253520
Filing Date: 2001-07-03
Classification: E04B,E04C

Abstract:
A structure for use in structural, load bearing construction, fabricated from cold rolled metallic shapes and structural grade sheet metals, comprising:interlocking box trusses consisting of core members held by web members and pairs of parallel spaced chord members, and facing units,each of said web members and each of said chord members of said pairs of parallel spaced chord members having at least one major axis, upper and lower transverse edge faces, side transverse edge faces, opposing primary faces, and edges,each of said web members and each of said chord members of said pairs of parallel spaced chord members having a plurality of alternating, tapering, and projecting teeth and transverse strikes on said transverse edge faces and at least one of said primary faces thereof, each of said teeth having a shape of a truncated pyramid with a taper on three sides of an inverted trapezoid base with an orthographic projection of a greater side, and having facets joined with at least one primary face at obtuse angles, a distance between said facets at the juncture with said primary face being less than at other respective facets,wherein said web members are aligned perpendicular to said parallel spaced chord members;each of said chord members of said pairs of parallel spaced chord members being aligned and interconnected with respective chord members of adjacent box trusses,said web members interlocking with pairs of interconnected parallel spaced chord members at said upper and lower transverse edge faces and with pairs of other interconnected web members of adjacent aligned box trusses at said side transverse edge faces,wherein said facing units are deformed by wedges between said facing units and anti-compression rigid frame core members; andsaid teeth of web members interlocking with teeth of two adjacent aligned chord members and interlocking with teeth of two other adjacent aligned web members, thereby forming joins of groups of three and forming hollow polyhedron shaped and aligned box trusses.