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Nx steel lumber

a technology of c-shaped studs and elongated structures, applied in the direction of girders, joists, trusses, etc., can solve the problems of increased interest in fabricating and constructing buildings with frames, c-shaped studs that are susceptible to local buckling, bending, bending, bending, etc., to achieve the effect of increasing lateral resistance, increasing lateral resistance, and improving lateral resistan

Inactive Publication Date: 2007-05-03
KIM WHITTY SUK K
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015] An object of the present invention is to provide for a novel elongate, cold-formed, metal structural member fabricated out of relatively thin sheet metal that has improved lateral resistance and rigidity. This invention provides for an improved lateral-strength metal construction member of a C-shaped configuration, deriving from angular intervening web extensions and variable exaggerated bends. A further object of the present invention is to provide for three fastening surfaces to allow for change in directions with different applications.
[0016] The invention provides for a novel C-shaped metal construction member in which angular intervening web extensions and perpendicular flanges with parallel end stiffening lips form opposite to the center longitudinal, elongate web member. The invention provides for a novel C-shaped metal construction member with improved lateral resistance for load-bearing support as determined per application by a professional engineer. The invention provides for variable exaggerated bends to satisfy certain engineering safety requirements. Previous undesired internal stress of the supporting element is eliminated or changed by the angular intervening web extensions, perpendicular flanges with variable exaggerated bends and parallel end stiffening lips that provide increased resistance to tension and compression.

Problems solved by technology

Common C-shaped studs may be susceptible to local, torsional, flexural, torsional-flexural, lateral-torsional or distortional buckling.
The rising cost of lumber has caused increased interest in fabricating and constructing buildings with frames of sheet metal construction members.

Method used

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Embodiment Construction

[0024] The structural member illustrated in FIG. 1 would be roll formed from thin, high tensile, galvanized steel in a structural grade. It can be roll formed by a single passage of an initially flat strip of sheet metal through a series of stands of forming rolls which successively modify the shape of the strip passing through the machines. FIG. 1 is a cross sectional view of a first embodiment of the C-shaped construction member. It comprises a longitudinal, elongate web member 5 having an angular intervening web extension 3 with variable exaggerated bends 4 and extending laterally to flange member 2 perpendicular to web member 5 and extending to an end wall member I of the flange member 2, in which the stiffening lip 1 is formed substantially parallel to web member 5 at the cross sectional end. The variable exaggerated bends 4, on both sides of flange member 3, satisfies safety requirements and provides improved lateral strength. The longitudinal, elongate web member 5, being the...

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Abstract

The invention is a cold formed, steel metal C-shaped structural member having an elongated web member with novel opposing angular intervening web extensions with variable exaggerated bends and extending laterally to opposing perpendicular flange members and extending to opposing end stiffening lips parallel to the center web member at the cross sectional ends.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] Not Applicable. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not Applicable. REFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER PROGRAM LISTING COMPACT DISK APPENDIX [0003] Not Applicable. BACKGROUND OF THE INVENTION [0004] 1. Field of the Invention [0005] The present invention relates to a novel C-shaped elongate structural member, having improved fastening and lateral strength characteristics, and in particular providing load bearing frames, as determined per application by professional engineers. This invention is concerned with a structural member that is cold formed from sheet metal wherein the rigidity of the frame as a whole results from the angular intervening web extensions, perpendicular flanges, variable exaggerated bends and stiffening lips of the member. Various metal framing systems have been developed to reduce the cost and labor in the construction of partition structures. [0006] 2. Descripti...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E04C3/30
CPCE04C3/07E04C2003/0413E04C2003/0421E04C2003/043E04C2003/0434E04C2003/0452E04C2003/0465E04C2003/0473
Inventor KIM-WHITTY, SUK K.
Owner KIM WHITTY SUK K
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