US2065493A - Structural member - Google Patents

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Publication number
US2065493A
US2065493A US745797A US74579734A US2065493A US 2065493 A US2065493 A US 2065493A US 745797 A US745797 A US 745797A US 74579734 A US74579734 A US 74579734A US 2065493 A US2065493 A US 2065493A
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United States
Prior art keywords
web
strip
crimped
flange
structural member
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Expired - Lifetime
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US745797A
Inventor
Gerald G Greulich
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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
    • E04C2003/0413Joists; 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 being built up from several 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
    • E04C2003/0426Joists; 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
    • E04C2003/0434Joists; 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 open cross-section free of enclosed cavities
    • 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49616Structural member making
    • Y10T29/49623Static structure, e.g., a building component
    • Y10T29/49634Beam or girder

Definitions

  • This invention relates to structural members.
  • One of the objects of the present invention is to provide a novel structural member which may be easily and cheaply fabricated in the manner described and one which will at the same time possess a resistance to stresses heretofore unobtainable.
  • Another object is the provision of a novel structural member which has a greatly reduced unsupported height of web.
  • a further object is to provide a novel structural member composed of strip material which may be readily coiled, uncoiled and fabricated in part by welding of a nature such as will impart a greatly increased rigidity of construction.
  • Figure l is a sectional elevation of the structural member fabricated in accordance with the teaching of the invention.
  • FIG. 1 is a fragmentary View on the line IIII of Figure 1.
  • Figure 3 is a fragmentary sectional view on the line III-III of Figure 1.
  • Figure 4 is a fragmentary sectional view on the line IVIV of Figure 3.
  • Figure 5 is a perspective of a detail.
  • Figure 6 is a perspective of a modified form of the invention.
  • Figure 7 is a perspective of a detail of the modification of Figure 6.
  • Figure 8 is a sectional view of another modification.
  • the numeral 2 designates a metallic strip of suitable gage and dimensions and from which the web 5 of the novel structural member is to be fabricated.
  • the strip 2 is crimped on both of its edges, as at 3 and I.
  • the crimped portions 3 and 4 of the strip 2 extend alternately from both 10 sides thereof, as at 5 and 6.
  • the crimps per se do not extend the full width of the strip 2 and accordingly leave a mid-portion 'I which lies in a single plane.
  • a pair of flanges 9 and III are disposed at right angles to the strip 2 with their mid-portions in contact with the crimped portions 3 and 4 and welded thereto in any suitable manner.
  • One method of accomplishing this is between a plurality of electrode rolls (not shown) which firmly press the flanges 9 and III against the crimped portions. Due to the fact that the crimped portions define radii with respect to the center-line of the web, or strip 2, their fusion into the flanges 9 and III will be deepest therebelow, and shallowest remotely therefrom, as indicated at I2 and I3.
  • the structural member of H-section thus obtained is characterized by greatly increased strength, due to the fact that the crimped portions 3 and 4 of the web 2 distribute imposed stresses.
  • the line of weld, as shown at I5 is curved-and, therefore, not as susceptible to failure as if it were straight.
  • the mid-portion I of the web 2 lying in a single plane affords a flat surface for conventional attachments.
  • a modified form of the invention contemplates intermittent crimping of a strip I6 as shown at I! and I8. These intermittent crimped portions I1 and I8 do not extend the full width of the strip I6 and leave a mid-portion I9 which lies in a single plane, as in the first embodiment.
  • FIG 6 another modification provides for the crimping of only one edge of a strip 20, as shown at 2i, leaving a mid-portion 22 and opposite edge 23 which lie in a single plane.
  • a flange 24 is attached to only the crimped portion 2
  • a web or strip I5 may be intermittently crimped, as shown at 25 and 26, in lieu of the continuously crimped strip 20.
  • a further embodiment contemplates a strip 27 which has both of its edges crimped, as at 28 and 29, but from only one side thereof.
  • a building structure comprising a web and a flange joined to and extending from at least one of its edges, said flange presenting an entirely flat surface to said web, said web having its midportion substantially flat and being crimped on its edge from which said flange extends, the joint between the crimped edge of said Web and the flat surface of said flange being continuous.
  • a building structure comprising a web and a flange joined to and extending from at least one of its edges, said flange presenting an entirely flat surface to said web, said web having its midportion substantially flat and being intermittently crimped on its edge from which said flange extends, the joint between the intermittently crimped edge of said web and the flat surface of said flange being continuous.
  • a building structure comprising a web and a flange joined to and extending from at least one of its edges, said flange presenting an entirely flat surface to said web, said web having its midportion substantially flat and being crimped on its edge from which said flange extends, the crimps extending alternately from both of the sides of said Web, the joint between the crimped edge of said web and the flat surface of said flange being continuous.

Description

Dec. 22, 1936.
G. G. GREULICH STRUCTURAL MEMBER 2 Sheets-Sheet 1 Filed Sept. 27, 1934 615 6440 fiEEUL/CH,
VPatented Dec. 22, 1936 Cir UNITED STATES PATENT OFFICE STRUCTURAL MEMBER Gerald G. Grculich, Mount Lebanon, Pa.
Application September 27, 1934, Serial No. 745,797
3 Claims.
This invention relates to structural members.
In the manufacture of structural members there has been considerable activity in developing sections which may be fabricated from coiled strip. Among the many advantages of structural members of this type is that they are extremely light in weight, and may be inexpensively fabricated in shops many miles distant from the mill which produced the coiled strip, thus effecting a substantial saving in cost of transportation.
There are, however, a number of disadvantages which attend the use of these lightweight structural members. Some sections will not stand up at the points where their component elements are welded. Other sections have very little resistance against the relative rotation of their flanges with respect to their webs, due to the lack of a fillet. In assembling all types of these structural members, the flanges were sometimes practically severed when the component elements were pressed together during the welding operation. This last condition results in a weakened flange that is practicallycertain to strip ofi" under a load.
One of the objects of the present invention is to provide a novel structural member which may be easily and cheaply fabricated in the manner described and one which will at the same time possess a resistance to stresses heretofore unobtainable.
Another object is the provision of a novel structural member which has a greatly reduced unsupported height of web.
A further object is to provide a novel structural member composed of strip material which may be readily coiled, uncoiled and fabricated in part by welding of a nature such as will impart a greatly increased rigidity of construction.
These and further objects will be apparent after referring to the drawings, in which:
Figure l is a sectional elevation of the structural member fabricated in accordance with the teaching of the invention.
Figure 2 is a fragmentary View on the line IIII of Figure 1.
Figure 3 is a fragmentary sectional view on the line III-III of Figure 1.
Figure 4 is a fragmentary sectional view on the line IVIV of Figure 3.
Figure 5 is a perspective of a detail.
Figure 6 is a perspective of a modified form of the invention.
Figure 7 is a perspective of a detail of the modification of Figure 6.
Figure 8 is a sectional view of another modification.
Referring more particularly to the drawings, the numeral 2 designates a metallic strip of suitable gage and dimensions and from which the web 5 of the novel structural member is to be fabricated.
According to the preferred embodiment of the invention the strip 2 is crimped on both of its edges, as at 3 and I. The crimped portions 3 and 4 of the strip 2 extend alternately from both 10 sides thereof, as at 5 and 6. The crimps per se do not extend the full width of the strip 2 and accordingly leave a mid-portion 'I which lies in a single plane.
A pair of flanges 9 and III are disposed at right angles to the strip 2 with their mid-portions in contact with the crimped portions 3 and 4 and welded thereto in any suitable manner. One method of accomplishing this is between a plurality of electrode rolls (not shown) which firmly press the flanges 9 and III against the crimped portions. Due to the fact that the crimped portions define radii with respect to the center-line of the web, or strip 2, their fusion into the flanges 9 and III will be deepest therebelow, and shallowest remotely therefrom, as indicated at I2 and I3.
The structural member of H-section thus obtained is characterized by greatly increased strength, due to the fact that the crimped portions 3 and 4 of the web 2 distribute imposed stresses. In addition the line of weld, as shown at I5, is curved-and, therefore, not as susceptible to failure as if it were straight. The mid-portion I of the web 2 lying in a single plane affords a flat surface for conventional attachments.
Referring to Figure 5 of the drawings, a modified form of the invention contemplates intermittent crimping of a strip I6 as shown at I! and I8. These intermittent crimped portions I1 and I8 do not extend the full width of the strip I6 and leave a mid-portion I9 which lies in a single plane, as in the first embodiment.
In Figure 6, another modification provides for the crimping of only one edge of a strip 20, as shown at 2i, leaving a mid-portion 22 and opposite edge 23 which lie in a single plane. In using this form of web, or strip 20, a flange 24 is attached to only the crimped portion 2|, in the manner previously recited. As shown in Figure '7, a web or strip I5 may be intermittently crimped, as shown at 25 and 26, in lieu of the continuously crimped strip 20.
Referring to Figure 8, a further embodiment contemplates a strip 27 which has both of its edges crimped, as at 28 and 29, but from only one side thereof.
While I have shown and described several specific embodiments of my invention, it will be understood that I do not wish to be limited exactly thereto, since various modifications may be made Without departing from the scope of my invention, as defined in the following claims.
I claim:
l. A building structure comprising a web and a flange joined to and extending from at least one of its edges, said flange presenting an entirely flat surface to said web, said web having its midportion substantially flat and being crimped on its edge from which said flange extends, the joint between the crimped edge of said Web and the flat surface of said flange being continuous.
2. A building structure comprising a web and a flange joined to and extending from at least one of its edges, said flange presenting an entirely flat surface to said web, said web having its midportion substantially flat and being intermittently crimped on its edge from which said flange extends, the joint between the intermittently crimped edge of said web and the flat surface of said flange being continuous.
3. A building structure comprising a web and a flange joined to and extending from at least one of its edges, said flange presenting an entirely flat surface to said web, said web having its midportion substantially flat and being crimped on its edge from which said flange extends, the crimps extending alternately from both of the sides of said Web, the joint between the crimped edge of said web and the flat surface of said flange being continuous.
GERALD G. GREULICH.
US745797A 1934-09-27 1934-09-27 Structural member Expired - Lifetime US2065493A (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852198A (en) * 1956-12-17 1958-09-16 Ideal Aeroplane & Supply Co In Over and under trestle and bridge set
US3333389A (en) * 1964-06-29 1967-08-01 Lihap Ind Tapered girder construction
US3362056A (en) * 1964-06-05 1968-01-09 Theodor Wuppermann Method of fabricating structural shapes
US4129974A (en) * 1974-06-18 1978-12-19 Morris Ojalvo Warp-restraining device and improvement to beams, girders, arch ribs, columns and struts
US4235054A (en) * 1977-11-14 1980-11-25 Angeles Metal Trim Co. Building wall structure
US4251973A (en) * 1980-04-07 1981-02-24 Paik Young J I-Beam construction and process therefor
US4566240A (en) * 1983-03-11 1986-01-28 Schilger Herbert K Composite floor system
WO1987004207A1 (en) * 1986-01-08 1987-07-16 Hans Spelten Profiled bar
US4779395A (en) * 1985-08-30 1988-10-25 Arbed S.A. Composite concrete/steel fireproof column
AU587458B2 (en) * 1985-05-22 1989-08-17 John Lysaght (Australia) Limited Curved beam
US5485706A (en) * 1992-03-27 1996-01-23 National Gypsum Company Offset forming of structural components
US5600932A (en) * 1996-01-05 1997-02-11 Paik; Young J. Beam with enhanced bearing load strength and method of manufacture
US5644883A (en) * 1993-02-25 1997-07-08 National Gypsum Company Multiple use corner clip
US5724784A (en) * 1992-03-27 1998-03-10 National Gypsum Company Shaft wall and horizontal metal stud therefor
US5740644A (en) * 1995-02-08 1998-04-21 National Gypsum Company Wall with horizontal metal stud and reinforcement channel therefor
US5749192A (en) * 1993-02-25 1998-05-12 National Gypsum Company Corner clips for horizonal framing
US6260327B1 (en) * 1999-07-19 2001-07-17 Mitek Holdings, Inc. Structural member of a truss
US20060150485A1 (en) * 2002-11-29 2006-07-13 Declan Somerville Garden extrusion
KR101223145B1 (en) 2012-08-02 2013-01-17 채일수 Welded beam having corrugated web and its manufacturing method

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852198A (en) * 1956-12-17 1958-09-16 Ideal Aeroplane & Supply Co In Over and under trestle and bridge set
US3362056A (en) * 1964-06-05 1968-01-09 Theodor Wuppermann Method of fabricating structural shapes
US3333389A (en) * 1964-06-29 1967-08-01 Lihap Ind Tapered girder construction
US4129974A (en) * 1974-06-18 1978-12-19 Morris Ojalvo Warp-restraining device and improvement to beams, girders, arch ribs, columns and struts
US4235054A (en) * 1977-11-14 1980-11-25 Angeles Metal Trim Co. Building wall structure
US4251973A (en) * 1980-04-07 1981-02-24 Paik Young J I-Beam construction and process therefor
US4566240A (en) * 1983-03-11 1986-01-28 Schilger Herbert K Composite floor system
AU587458B2 (en) * 1985-05-22 1989-08-17 John Lysaght (Australia) Limited Curved beam
US4779395A (en) * 1985-08-30 1988-10-25 Arbed S.A. Composite concrete/steel fireproof column
EP0232549A1 (en) * 1986-01-08 1987-08-19 Hans Spelten Profiled beam
WO1987004207A1 (en) * 1986-01-08 1987-07-16 Hans Spelten Profiled bar
AU591403B2 (en) * 1986-01-08 1989-11-30 Hans Spelten Profiled bar
US5012626A (en) * 1986-01-08 1991-05-07 Hans Spelten Structural bar
US5485706A (en) * 1992-03-27 1996-01-23 National Gypsum Company Offset forming of structural components
US5724784A (en) * 1992-03-27 1998-03-10 National Gypsum Company Shaft wall and horizontal metal stud therefor
US5749192A (en) * 1993-02-25 1998-05-12 National Gypsum Company Corner clips for horizonal framing
US5644883A (en) * 1993-02-25 1997-07-08 National Gypsum Company Multiple use corner clip
US5740644A (en) * 1995-02-08 1998-04-21 National Gypsum Company Wall with horizontal metal stud and reinforcement channel therefor
US5600932A (en) * 1996-01-05 1997-02-11 Paik; Young J. Beam with enhanced bearing load strength and method of manufacture
US6260327B1 (en) * 1999-07-19 2001-07-17 Mitek Holdings, Inc. Structural member of a truss
US20060150485A1 (en) * 2002-11-29 2006-07-13 Declan Somerville Garden extrusion
KR101223145B1 (en) 2012-08-02 2013-01-17 채일수 Welded beam having corrugated web and its manufacturing method

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