US3342007A - Structural member - Google Patents
Structural member Download PDFInfo
- 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
- Authority
- US
- United States
- Prior art keywords
- structural member
- members
- sloped
- accord
- load bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 238000007373 indentation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/07—Joists; 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; 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
- E04C2003/0421—Joists; 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; 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
- E04C2003/043—Joists; 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; 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
- E04C2003/0439—Joists; 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; 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
- E04C2003/0452—H- or I-shaped
- E04C2003/0456—H- or I-shaped hollow flanged, i.e. "dogbone" metal beams
Definitions
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- the structural members in accord with this invention can receive nails driven into the surfaces 10a and 12a, as well as in the sloped surfaces 10b and 100 and 12b and 120.
- the structural members are adapted for replacement of wood beams and studding of equivalent size.
- 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.
- 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.
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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US387082A US3342007A (en) | 1964-08-03 | 1964-08-03 | Structural member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US387082A US3342007A (en) | 1964-08-03 | 1964-08-03 | Structural member |
Publications (1)
Publication Number | Publication Date |
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US3342007A true US3342007A (en) | 1967-09-19 |
Family
ID=23528380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US387082A Expired - Lifetime US3342007A (en) | 1964-08-03 | 1964-08-03 | Structural member |
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US (1) | US3342007A (en) |
Cited By (36)
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 | METAL SUPPORTING ELEMENT FOR BUILDING STRUCTURE IN PARTICULAR |
WO1986000950A1 (en) * | 1984-07-30 | 1986-02-13 | Schweizerische Aluminium Ag | Device for retaining snow |
JPH03502223A (en) * | 1988-11-18 | 1991-05-23 | チューブ・テクノロジー・ピィ・ティ・ワィ・リミテッド | Structural members and their manufacturing method |
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 |
US20200190788A1 (en) * | 2017-08-18 | 2020-06-18 | Knauf Gips Kg | Frame, basic framework, module, profile and set of structural elements for modular construction and a modular-construction building |
USD991493S1 (en) * | 2023-02-24 | 2023-07-04 | Florida Sales & Marketing, LLC | 2x beam insert |
Citations (3)
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 |
-
1964
- 1964-08-03 US US387082A patent/US3342007A/en not_active Expired - Lifetime
Patent Citations (3)
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 (58)
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 |
FR2556389A1 (en) * | 1983-12-08 | 1985-06-14 | Daniel Moyse | METAL SUPPORTING ELEMENT FOR BUILDING STRUCTURE IN PARTICULAR |
WO1985002639A1 (en) * | 1983-12-08 | 1985-06-20 | Daniel Moyse | Metal building structure |
WO1986000950A1 (en) * | 1984-07-30 | 1986-02-13 | Schweizerische Aluminium Ag | Device for retaining snow |
US5373679A (en) * | 1988-07-25 | 1994-12-20 | Tube Technology 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 |
AU626030B2 (en) * | 1988-07-27 | 1992-07-23 | Smorgon Steel Litesteel Products Pty Ltd | Structural member and process for forming same |
JPH03502223A (en) * | 1988-11-18 | 1991-05-23 | チューブ・テクノロジー・ピィ・ティ・ワィ・リミテッド | Structural members and their manufacturing method |
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 manufacturing method thereof |
US5501053A (en) * | 1990-09-28 | 1996-03-26 | Tube Technology Pty., Ltd. | Interengageable structural members |
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 |
SG79182A1 (en) * | 1990-09-28 | 2001-03-20 | Tube Technology Pty Ltd | Multiple component structural member |
WO1992005895A1 (en) * | 1990-09-28 | 1992-04-16 | Tube Technology Pty. Ltd. | Multiple component structural member |
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 |
US6122888A (en) * | 1991-06-03 | 2000-09-26 | 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 |
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