US3342007A - Structural member - Google Patents

Structural member Download PDF

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Publication number
US3342007A
US3342007A US387082A US38708264A US3342007A US 3342007 A US3342007 A US 3342007A US 387082 A US387082 A US 387082A US 38708264 A US38708264 A US 38708264A US 3342007 A US3342007 A US 3342007A
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structural member
members
invention
sloped
accord
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US387082A
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Karol J W Merson
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Anthes Imperial Ltd
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Anthes Imperial Ltd
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Priority to US387082A priority Critical patent/US3342007A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0439Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the cross-section comprising open parts and hollow parts
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452H- or I-shaped
    • E04C2003/0456H- or I-shaped hollow flanged, i.e. "dogbone" metal beams

Description

Sept. 19, 1967 K. J. w. MERSON 3,342,007

STRUCTURAL MEMBER Filed Aug. 5, 1964 12 In FIG.4

INVENTOR KAROL J.W. MERSON TTORNEYS United States Patent M 3,342,007 STRUCTURAL MEMBER Karol J. W. Merson, Toronto, Ontario, Canada, assignor to Anthes Imperial Limited, St. Catharines, Ontario, Canada Filed Aug. 3, 1964, Ser. No. 387,082 1 Claim. (Cl. 52729) This invention relates to the manufacture of structural members, and is particularly concerned with a lightweight beam formed of sheet metal by cold roll forming.

While the structural member with which this invention is concerned is called a beam in the following specification, it is to be understood that the utility of the member is not restricted to use as a beam, but can be used as studding, subpurlins, and all other elements employed in the construction industry. While the structural member must be manufactured in accord with two preferable shapes, the use to which the member is put will largely be governed by the size of the member, and by the gauge of the metal from which it is formed. Thus, the member might be made of comparatively light gauge steel for use in studding, or it might be made of heavier gauge steel, and larger in size for use as primary load bearing members, such as beams.

The chief advantage of the structural member in accord with this invention is its high strength to weight ratio. Previous attempts at forming light-weight beams by cold roll forming have not been successful, as it was found that such heavy gauge material was required to provide the central web with suflicient strength to avoid buckling, that the prior beams have been uneconomic due to the necessity of rolling the beam of one sheet of material with the result that all the other parts of the beam are formed of material thicker than required to perform the functions of these other parts.

It is an object of this invention, therefore, to provide a light-weight beam formed by cold roll forming from sheet steel.

It is a more specific object of the invention to provide a structural member of this type which is so shaped in cross section as to possess adequate strength in the central web, and has a high strength to weight ratio.

These and other objects of the invention will be understood from the following description of preferred embodiments thereof, as read in conjunction with the accompanying drawings.

In the drawings which illustrate these preferred embodiments,

FIGURE 1 is a perspective view of a structural member in accord with one preferred embodiment of the invention;

FIGURE 2 is a cross-section view through the structural member shown in FIGURE 1;

FIGURE 3 is an enlarged view of a portion of FIG- URE 2; and

FIGURE 4 is a View similar to the top portion of FIG- URE 2, but showing a second preferred embodiment of the invention.

The structural member shown in the drawings is preferably manufactured of sheet steel by cold roll forming. The members can be made of any desired size, depending upon their end use. As an example, and as previously mentioned, these structural members might be used as 2 x 4 studding, and for this purpose, they are advantageously formed of 22 gauge steel. As these members are made by cold roll forming, the maximum thickness of the steel which can be used is governed by the maximum thickness of metal which can be cold roll formed. In this regard, it has been found that sheet metal up to 16 gauge in thickness can be cold roll formed with commonly avail- 3,342,007 Patented Sept. 19, 1967 able equipment. It will also be appreciated that the design of the section is such as to have the most economical width to thickness ratio of its elements.

Referring now to FIGURE 1, the illustrated structural member essentially consists of top and bottom load hearing element-s 10 and 12, and an intervening Web 14. It Will be appreciated, of course, that all three of these elements are preferably formed of one piece of sheet steel. Elements 10 and 12 provide wide bearing surfaces on their horizontal extents 10a and 12a, while their sloped extents 10b and and 12b and serve to support these load bearing surfaces 10a and 12b, while reducing the vertical height of web 14, relative to the overall height of the structural member. This is an important feature of the invention, as reduction of the relative height of the web increases its resistance against buckling and favourably influences the carrying capacity of the structural member.

It is to be understood that while certain parts of the structural member in accord with the invention are described in this specification and in the accompanying claims as being horizontal and vertical, these terms are adapted for the sake of expediency in describing the invention, and that the parts and surfaces referred to might actually assume opposite or intermediate positions in use. The terms horizontal and vertical describe the structural members as shown in the accompanying drawings.

Referring now to FIGURES 2 and 3, it is to be noted that the free ends of the sloped extents 10c and 120 abut their opposite members 1% and 12b. This is an important feature, and insures that the load applied to the surface 10a and 12a will be equally borne by the sloped extents and transmitted through these sloped extents to webs 14, without setting up momemnts which might tend to cause the structural member to sway to either side.

FIGURE 4 shows a modified form of the structural member in accord with the invention, wherein the horizontal load bearing surfaces are strengthened by longitudinally extending indentations 20. These indentations are used in the larger structural member in accord with the invention.

The angle X between the sloped portions of the members 10 and 12 is acceptable between the limits from about 45 to about but is preferably 90, as illustrated.

One of the chief advantages of the structural members in accord with this invention is that they can receive nails driven into the surfaces 10a and 12a, as well as in the sloped surfaces 10b and 100 and 12b and 120. With this feature, the structural members are adapted for replacement of wood beams and studding of equivalent size. For example, smaller members used as common studding, when positioned vertically, are adapted to receive wall board nailed against the surface 10a or 12a. The nails may be driven to the depth at which the sloped surfaces 10b and 100 meet, and are gripped tightly along this line. The nails also serve to strengthen the members.

A further advantage of the structural members in accord with this invention is that they can be made any length. This is an important feature where the members are used as replacement for equivalent wood members, as wood members of long length command premium prices. Thus, when spanning large distances, as when installing a floor, for example, it is common to purchase short lengths of wood and to splice them at one or more points. This involves extra labour costs, which are avoided by substituting structural members in accord with this invention. The greater length of the beam also permits spanning two or more bays which, by the influence of the continuity of the beam, increases its load carrying capacity.

What I claim as my invention is:

A structural member manufactured from a single piece of steel sheet by cold roll forming, said structural member having a pair of longitudinally extending load bearing elements and an intervening Web, said load bearing elements each having a first extent positioned transversely to the plane of said web and two sloped extents extending from the side margins of said transverse extent to said web, one sloped extent of each of said load bearing elements terminating, adjacent said Web, in a free edge which abuts against the other sloped extent in the same load bearing element, the angle between the sloped extents in each load bearing element being 90, the transverse extent of each load bearing element being provided with a longitudinally extending shaped indentation.

References Cited UNITED STATES PATENTS 991,603 5/1-911 Brooks 52729 X 3,066,772 12/1962 Gibson 52729 X 3,214,875 11/1965 Slowinski et al 52-729 X 10 FRANK L. ABBOTT, Primary Examiner.

RICHARD W. COOKE, JR., Examiner.

M. O. WARNECKE, Assistant Examiner.

US387082A 1964-08-03 1964-08-03 Structural member Expired - Lifetime US3342007A (en)

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Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517474A (en) * 1967-06-16 1970-06-30 Wendel & Cie Sa De Flanged structural assembly
US4329824A (en) * 1979-12-12 1982-05-18 Lowe Colin F Sheet metal beam
US4455806A (en) * 1978-06-12 1984-06-26 Rice Donald W Structural building member
WO1984003319A1 (en) * 1983-02-24 1984-08-30 Rother Carole A Construction systems and elements thereof
US4490958A (en) * 1979-12-12 1985-01-01 Lowe Colin F Sheet metal beam
EP0132894A1 (en) * 1983-07-22 1985-02-13 Thomas Regout N.V. Cold-rolled girder section
FR2556389A1 (en) * 1983-12-08 1985-06-14 Daniel Moyse Element carrier metal for particular building structure
WO1986000950A1 (en) * 1984-07-30 1986-02-13 Schweizerische Aluminium Ag Device for retaining snow
JPH03502223A (en) * 1988-11-18 1991-05-23
WO1992005895A1 (en) * 1990-09-28 1992-04-16 Tube Technology Pty. Ltd. Multiple component structural member
AU626030B2 (en) * 1988-07-27 1992-07-23 Smorgon Steel Litesteel Products Pty Ltd Structural member and process for forming same
US5163225A (en) * 1988-07-25 1992-11-17 Tube Technology Pty Ltd. Process for forming a structural member utilizing high frequency electrical induction or resistance welding
GB2261248A (en) * 1991-10-29 1993-05-12 Abru Aluminium Ltd A structural component.
AU659804B2 (en) * 1990-09-28 1995-06-01 Smorgon Steel Litesteel Products Pty Ltd Multiple component structural member
US5487199A (en) * 1994-04-04 1996-01-30 Nelson; John Vandalism prevention device for highway bridges
US5501053A (en) * 1990-09-28 1996-03-26 Tube Technology Pty., Ltd. Interengageable structural members
US5592848A (en) * 1991-06-03 1997-01-14 Bodnar; Ernest R. Method of simultaneously forming a pair of sheet metal structural members
US5669197A (en) * 1991-06-03 1997-09-23 Bodnar; Ernest Robert Sheet metal structural member
US6115986A (en) * 1996-08-30 2000-09-12 Bhp Steel (Jla) Pty Ltd Stackable box stud
US6131362A (en) * 1998-02-04 2000-10-17 Buecker Machine & Iron Works, Inc. Sheet metal beam
US6330777B1 (en) 1999-07-20 2001-12-18 Tcw Technologies Inc. Three dimensional metal structural assembly and production method
US20020108345A1 (en) * 1999-11-12 2002-08-15 Walker Steven H. Metal structural member
US20040045476A1 (en) * 2002-09-10 2004-03-11 Bianchi Tamo P. Railcar nailable floor
US6874765B2 (en) 2002-04-17 2005-04-05 Hadley Industries Plc Cold rolled post for security fence
US20050108979A1 (en) * 2003-11-26 2005-05-26 Yttrup Peter J. Pole reinforcing structures
US20070028554A1 (en) * 2005-08-05 2007-02-08 James Ferrell High strength runner
US20070056240A1 (en) * 2005-09-15 2007-03-15 Lakdas Nanayakkara Press-formable light-gauge truss framing element
US20070125038A1 (en) * 2005-11-21 2007-06-07 Lehane James J Jr Grid tee for suspension ceiling
US20080028720A1 (en) * 2003-06-23 2008-02-07 Smorgon Steel Litesteel Products Pty Ltd An Improved Beam
US7441751B1 (en) 2003-10-06 2008-10-28 Gibbs Edward L Cable fence system
US7475868B1 (en) 2002-04-05 2009-01-13 Gibbs Edward L Cable fence system
US7651073B1 (en) 2002-04-05 2010-01-26 Gibbs Edward L Fence post
US20110078968A1 (en) * 2005-08-05 2011-04-07 James Ferrell Single Strip - Double Web Ceiling Grid Member
WO2017201137A1 (en) * 2016-05-20 2017-11-23 Michael Roach Structural joists and methods to manufacture the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US991603A (en) * 1910-09-22 1911-05-09 George William Brooks Fireproof beam.
US3066772A (en) * 1960-05-02 1962-12-04 Powell Steel Lath Corp Nailable metal stud
US3214875A (en) * 1962-02-12 1965-11-02 Nat Gypsum Co Wall supporting and fastening means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US991603A (en) * 1910-09-22 1911-05-09 George William Brooks Fireproof beam.
US3066772A (en) * 1960-05-02 1962-12-04 Powell Steel Lath Corp Nailable metal stud
US3214875A (en) * 1962-02-12 1965-11-02 Nat Gypsum Co Wall supporting and fastening means

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517474A (en) * 1967-06-16 1970-06-30 Wendel & Cie Sa De Flanged structural assembly
US4455806A (en) * 1978-06-12 1984-06-26 Rice Donald W Structural building member
US4329824A (en) * 1979-12-12 1982-05-18 Lowe Colin F Sheet metal beam
US4490958A (en) * 1979-12-12 1985-01-01 Lowe Colin F Sheet metal beam
WO1984003319A1 (en) * 1983-02-24 1984-08-30 Rother Carole A Construction systems and elements thereof
EP0132894A1 (en) * 1983-07-22 1985-02-13 Thomas Regout N.V. Cold-rolled girder section
WO1985002639A1 (en) * 1983-12-08 1985-06-20 Daniel Moyse Metal building structure
FR2556389A1 (en) * 1983-12-08 1985-06-14 Daniel Moyse Element carrier metal for particular building structure
WO1986000950A1 (en) * 1984-07-30 1986-02-13 Schweizerische Aluminium Ag Device for retaining snow
US5163225A (en) * 1988-07-25 1992-11-17 Tube Technology Pty Ltd. Process for forming a structural member utilizing high frequency electrical induction or resistance welding
US5373679A (en) * 1988-07-25 1994-12-20 Tube Technology Pty Ltd Structural member and process for forming same
AU626030B2 (en) * 1988-07-27 1992-07-23 Smorgon Steel Litesteel Products Pty Ltd Structural member and process for forming same
JP2506471B2 (en) 1988-11-18 1996-06-12 チューブ・テクノロジー・ピィ・ティ・ワィ・リミテッド Structural member and production method thereof
JPH03502223A (en) * 1988-11-18 1991-05-23
WO1992005895A1 (en) * 1990-09-28 1992-04-16 Tube Technology Pty. Ltd. Multiple component structural member
US5403986A (en) * 1990-09-28 1995-04-04 Tube Technology Pty. Ltd. Structural member and method of making by cold rolling followed by induction or resistance welding
AU659804B2 (en) * 1990-09-28 1995-06-01 Smorgon Steel Litesteel Products Pty Ltd Multiple component structural member
US5501053A (en) * 1990-09-28 1996-03-26 Tube Technology Pty., Ltd. Interengageable structural members
SG79182A1 (en) * 1990-09-28 2001-03-20 Tube Technology Pty Ltd Multiple component structural member
US6122888A (en) * 1991-06-03 2000-09-26 Rotary Press Systems Inc. Construction panel and method of constructing a level portion of a building
US5592848A (en) * 1991-06-03 1997-01-14 Bodnar; Ernest R. Method of simultaneously forming a pair of sheet metal structural members
US5669197A (en) * 1991-06-03 1997-09-23 Bodnar; Ernest Robert Sheet metal structural member
US5809724A (en) * 1991-06-03 1998-09-22 Rotary Press Systems Inc. Construction panel and method of constructing a level portion of a building
GB2261248A (en) * 1991-10-29 1993-05-12 Abru Aluminium Ltd A structural component.
GB2261248B (en) * 1991-10-29 1996-05-15 Abru Aluminium Ltd A ladder structure
US5487199A (en) * 1994-04-04 1996-01-30 Nelson; John Vandalism prevention device for highway bridges
US6115986A (en) * 1996-08-30 2000-09-12 Bhp Steel (Jla) Pty Ltd Stackable box stud
US6131362A (en) * 1998-02-04 2000-10-17 Buecker Machine & Iron Works, Inc. Sheet metal beam
US6330777B1 (en) 1999-07-20 2001-12-18 Tcw Technologies Inc. Three dimensional metal structural assembly and production method
US20020108345A1 (en) * 1999-11-12 2002-08-15 Walker Steven H. Metal structural member
US7651073B1 (en) 2002-04-05 2010-01-26 Gibbs Edward L Fence post
US7475868B1 (en) 2002-04-05 2009-01-13 Gibbs Edward L Cable fence system
US6874765B2 (en) 2002-04-17 2005-04-05 Hadley Industries Plc Cold rolled post for security fence
US20050116212A1 (en) * 2002-04-17 2005-06-02 Deeley Geoffrey T. Cold rolled post for security fence
US6973881B2 (en) 2002-09-10 2005-12-13 Bianchi Tamo P Railcar nailable floor
US20040045476A1 (en) * 2002-09-10 2004-03-11 Bianchi Tamo P. Railcar nailable floor
US8181423B2 (en) 2003-06-23 2012-05-22 Smorgon Steel Litesteel Products Pty Ltd. Beam
US20110162320A1 (en) * 2003-06-23 2011-07-07 Smorgon Steel Litesteel Products Pty Ltd Beam
US20100005758A1 (en) * 2003-06-23 2010-01-14 Smorgon Steel Litesteel Products Pty Ltd Beam
US20080028720A1 (en) * 2003-06-23 2008-02-07 Smorgon Steel Litesteel Products Pty Ltd An Improved Beam
US7441751B1 (en) 2003-10-06 2008-10-28 Gibbs Edward L Cable fence system
US20050108979A1 (en) * 2003-11-26 2005-05-26 Yttrup Peter J. Pole reinforcing structures
US20110078968A1 (en) * 2005-08-05 2011-04-07 James Ferrell Single Strip - Double Web Ceiling Grid Member
US20070028554A1 (en) * 2005-08-05 2007-02-08 James Ferrell High strength runner
US20070056240A1 (en) * 2005-09-15 2007-03-15 Lakdas Nanayakkara Press-formable light-gauge truss framing element
US20070125038A1 (en) * 2005-11-21 2007-06-07 Lehane James J Jr Grid tee for suspension ceiling
US7832168B2 (en) 2005-11-21 2010-11-16 Usg Interiors, Inc. Grid tee for suspension ceiling
US7516585B2 (en) 2005-11-21 2009-04-14 Usg Interiors, Inc. Grid tee for suspension ceiling
US20090158684A1 (en) * 2005-11-21 2009-06-25 Usg Interiors, Inc. Grid tee for suspension ceiling
US8266860B2 (en) 2005-11-21 2012-09-18 Usg Interiors, Llc Grid tee for suspension ceiling
US20080134611A1 (en) * 2005-11-21 2008-06-12 Usg Interiors, Inc. Grid tee for suspension ceiling
WO2017201137A1 (en) * 2016-05-20 2017-11-23 Michael Roach Structural joists and methods to manufacture the same

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