WO2004022875A1 - Element de structure possedant une extremite renforcee - Google Patents

Element de structure possedant une extremite renforcee Download PDF

Info

Publication number
WO2004022875A1
WO2004022875A1 PCT/CA2003/001293 CA0301293W WO2004022875A1 WO 2004022875 A1 WO2004022875 A1 WO 2004022875A1 CA 0301293 W CA0301293 W CA 0301293W WO 2004022875 A1 WO2004022875 A1 WO 2004022875A1
Authority
WO
WIPO (PCT)
Prior art keywords
extension
joist
flanges
web
floor
Prior art date
Application number
PCT/CA2003/001293
Other languages
English (en)
Inventor
John Rice
Original Assignee
Bailey Metal Products Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bailey Metal Products Limited filed Critical Bailey Metal Products Limited
Priority to AU2003266034A priority Critical patent/AU2003266034A1/en
Publication of WO2004022875A1 publication Critical patent/WO2004022875A1/fr

Links

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
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/14—Load-carrying floor structures formed substantially of prefabricated units with beams or girders laid in two directions
    • 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
    • E04C2003/026—Braces
    • 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
    • E04C2003/0434—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 open cross-section free of enclosed cavities
    • 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
    • E04C2003/0473—U- or C-shaped

Definitions

  • the present invention is directed to a metal framing member, particularly a metal floor joist, havir.g an integral reinforced end.
  • a modified ledger or rim joist has recently been described m U.S. Patent No. 5,956,916 issued September 18, 1999 assigned to Steel Floor Ltd. m an attempt to overcome the above problems.
  • the web of the ledger is provided with struck out tabs which extend perpendicularly inwardly of the v/eb at a regular spacing, typically 16 inches on center.
  • the tabs act as a locating means and attachment means for the floor jorst as well as reinforcing the end of the web of the floor joist.
  • the modified ledger 3 01st makes the attachment of the floor joist easier, it also introduces new problems.
  • the alignment of the ledger must be closely controlled so that the floor joists spanning the space between the ledge will be properly aligned with, the struck out tabs This will require additional labor time by the framing trades. Additionally, as the location cf the tabs are fi e at the time of manufacturing of the ledger, the flexibility m the spacing of the floor joists s limited. In some cases such as to avoid a service stack or to provide additional support below partition wauls, it may be necessary to adjust the spacing of the floor joist or to install additional joists. In addition if the load characteristics change, the 301st spacing required to support the load may change.
  • the present invention is directed to a framing member for use in a steel framed structure.
  • the framing member has a U-shaped rectangular cross section with two parallel spaced apart flanges and a central web bridging the flanges and connected to one edge of each of the langes.
  • the central v/eb has an extension on each end thereof, che extension extending beyond the flanres a distance of at least half the width of the flange.
  • Figure 1 is a perspective view of a floor joist constructed in accordance with the present invention
  • Figure 2 is a perspective view of the end of the floor joist of Figure 1
  • Figure 3 is a perspective view of a floor constructed using the floor joist of figure " 1
  • igure 4 is a perspective view of two floor joists of Figure 1 meeting over a beam
  • Figure 5 is a top plan view of the joists of Figure 4 ;
  • Figure 6 is a perspective view of a second floor constructed using the floor joist of figure 1.
  • a first preferred embodiment of a framing member, particularly a floor joist according to the present invention is illustrated in the attached figures generally indicated by the numeral 10.
  • the floor joist 10 has a generally C shaped cross section with a web 12 spanning two parallel flanges 14 at opposite edges of the web 1 .
  • the opposite edge of the flanges 14 have an inwardly turned extension to strengthen the flanges when under load.
  • the central web 12 is provided with extensions 16 on each end, the extension 16 having a height slightly less than the height of the web 12.
  • the extension 16 extends beyond the end of the flange 14 a distance of at least half the width of the flange 14.
  • the extension 16 extends beyond the end of the flange 14 a distance of about the width of the flange 14.
  • slots 18 are provided along the desired bend line 20 between the web 12 and the extension 16. The provision of the slots 18 also forces the extension 16 to be bent along this line.
  • the rim or header joists 30 are attached to the wall, generally by being attached to the top plate of the wall or being directly attached to the vertical surface of the wall as is common in balloon framing and with walls formed from insulated concrete forms.
  • the extensions 16 of the floor joists 10 are bent, generally perpendicular to the .web 12.
  • the end of the joist 10 is placed in the opening of the rim .joist 30, butting the extension 16 against the web 32 of the rim joist 10.
  • the extension 16 is then screwed to the web 32 of the rim joist 30 by suitable screws 36 and the flange 14 of the floor joist 10 secured to the flange 34 of the rim joist 30 by screw 36.
  • the floor joists 10 of the present invention are of particular use where the joists 10 connect to the rim joist or header at other than right angles.
  • the extension 16 of the floor joist 10 is bent at an angle to match the angle between the floor joist 10 and rim joist 30. In this way, the extension 16 butts against the web 32 of the rim joist 30 and is easily secured to the web 34 of the rim oist 30.
  • the framing me ber of the present invention is manufactured using typical machinery such as roll forrters to bend the flanges from a suitable sized blank of metal.
  • the extension and slots may be formed by a cutting machine either before or after the roll forming operation.
  • the framing members are easily stackable one within another in the typical manner as there are no protrusions beyond the usual C shaped cross section .
  • the dimensions of the framing members of the present invention are those typically used m metal forming.
  • Floor joists produced m accordance with the preaent invention typicstlly have a depth of 8 to 14 inches, more preferably 8, 10 or 12 inches and the flanges are typically IY2 to 2 inches wide.
  • the joist are typically formed of 14 to 20 gauge steel, most preferably 16 3- 18 gauge . x n
  • the provision of the reinforced end is also of use m the construction of bridging members 50 which are used to interconnect two joists 10 intermediate their ends.
  • the bridging member 50 is also of use m the construction of bridging members 50 which are used to interconnect two joists 10 intermediate their ends.
  • the bridging member 50 In order to allow the bridging member 50 to fit between the inwardly turned extensions of the flanges 14, the height of the bridging member 50 to fit between the inwardly turned extensions of the flanges 14, the height of the bridging member 50 to fit between the inwardly turned extensions of the flanges 14, the height of the bridging member 50 to fit between the inwardly turned extensions of the flanges 14, the height of the bridging
  • ?5 member is selected to be equal to or less than the spacing between the inwardly turned extensions Typically for & and 10 inch joists, the height of the bridging member will be 6 inches. This allows the bridging member to fit in the space and be formed using
  • the extensions may also be used to reinforce the ends of lintels 6 formed by 35 attaching two jo-ists 62 of the required length together back to back, each of the joists 62 having the extensions at either ends.
  • Tne extension 64 are bent over to e attached to the studs 66 framing the opening 68 bridged by the lintel 60.
  • the framing member, particularly the floor joist of the present invention provides for numerous advantages over those of the prior art.
  • the securement of the floor joist to the rim joist does not require the use of additional support members such as brackets or short sections of metal studs, thus resulting in significant labour savings.
  • additional support members such as brackets or short sections of metal studs
  • the connection of two floor joists to one another over a beam does not require additional support members, also resulting in labour savings.
  • the floor joists of the present invention are also easily adaptable to situations where the floor joists meet the rim joist or header at other than right angles .
  • the framing member of the present invention may also be utilized in other framing applications in residential or commercial construction.
  • the provision of the extensions on the end of the central web may also be utilized in framing of roofs, particularly for use in a roof rafter whi.ch frames into a hip for a hip roof or into the ridge of a metal framed roo .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Floor Finish (AREA)

Abstract

L'invention concerne un élément de structure conçu pour être utilisé dans un plancher en poutrelles d'acier. Cet élément de structure présente une section transversale rectangulaire en forme de U pourvue de deux brides parallèles, ainsi que d'une âme centrale reliant ces brides et accouplée à un bord de chacune de ces dernières. Cette âme centrale possède une prolongation sur chacune de ses extrémités s'étendant au-delà des brides sur une distance au moins égale à la moitié de la largeur de la bride.
PCT/CA2003/001293 2002-09-05 2003-09-05 Element de structure possedant une extremite renforcee WO2004022875A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003266034A AU2003266034A1 (en) 2002-09-05 2003-09-05 Framing member having reinforced end

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2401289A CA2401289C (fr) 2002-09-05 2002-09-05 Solive de plancher en metal
CA2,401,289 2002-09-05

Publications (1)

Publication Number Publication Date
WO2004022875A1 true WO2004022875A1 (fr) 2004-03-18

Family

ID=31954508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2003/001293 WO2004022875A1 (fr) 2002-09-05 2003-09-05 Element de structure possedant une extremite renforcee

Country Status (4)

Country Link
US (1) US20040163356A1 (fr)
AU (1) AU2003266034A1 (fr)
CA (1) CA2401289C (fr)
WO (1) WO2004022875A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006200728B2 (en) * 2005-02-23 2010-12-09 Steel Building Systems Australia Pty Ltd Method of connecting floor joist to bearer in floor frame
WO2018067712A1 (fr) 2016-10-05 2018-04-12 Fortress Iron, Lp Système de charpente de tablier
US11028580B2 (en) 2018-05-25 2021-06-08 Fortress Iron, Lp Deck frame with integral attachment tabs

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US7716899B2 (en) * 2003-04-14 2010-05-18 Dietrich Industries, Inc. Building construction systems and methods
US7856786B2 (en) * 2003-04-14 2010-12-28 Dietrich Industries, Inc. Wall and floor construction arrangements and methods
US9777479B2 (en) * 2003-09-05 2017-10-03 Bailey Metal Products Limited Framing member having reinforced end
US20060026911A1 (en) * 2004-11-18 2006-02-09 Sutton Adam F Footer track with moisture vent
CN100363575C (zh) * 2005-05-27 2008-01-23 浙江大学 设置连杆的开口薄壁型钢
US7467469B2 (en) * 2005-09-07 2008-12-23 Harlin Wall Modular housing system and method of manufacture
US20080022624A1 (en) * 2006-07-25 2008-01-31 Hanson Courtney J Joist support
US20110225923A1 (en) * 2010-03-17 2011-09-22 Span-Lite, LLC Joist Assemblies and Assembly Kits
CN102312483B (zh) * 2010-06-30 2013-12-25 谢英俊 设有加强部件的方形轻钢构件
JP5814003B2 (ja) * 2011-06-13 2015-11-17 積水ハウス株式会社 連結金具及びこれを備えたフレーム並びにこれを用いた建築物
USD811626S1 (en) * 2013-10-25 2018-02-27 Swf Industrial, Inc. Expanding wall channel
US9316015B1 (en) * 2014-02-21 2016-04-19 Specialty Hardware L.P. Shelter for protection against wind and blast events
US10287774B2 (en) * 2014-10-10 2019-05-14 Keith Dietzen Truss assembly

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CA2280506A1 (fr) * 1999-08-19 2001-02-19 Bailey Metal Products Limited Poteaux d'acier non porteurs
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FR1472217A (fr) * 1966-01-26 1967-03-10 Nouvelle structure de poutres et poteaux métalliques à treillis, pour assemblage souple des entretoises sur les membrures
US4593509A (en) * 1982-10-07 1986-06-10 Linton Systems Limited Building structure
US5440848A (en) * 1992-09-18 1995-08-15 H. L. Stud, Inc. Metal studs to replace wood studs
US5625995A (en) 1994-07-15 1997-05-06 Consolidated Systems, Inc. Method and flooring system with aligning bracket for mutually securing a header, a joist and a base
US5596859A (en) * 1994-09-20 1997-01-28 Horton; Jim W. Metal wall stud
US5956916A (en) 1997-10-30 1999-09-28 Steel Floors, Llc Shear tab method and apparatus
US20020035815A1 (en) * 1998-11-25 2002-03-28 Daudet Larry Randall Floor system and floor system construction methods
EP1031669A1 (fr) * 1999-02-22 2000-08-30 Sadef N.V. Elément de construction destiné à former de cadres pour bâtiments
CA2280506A1 (fr) * 1999-08-19 2001-02-19 Bailey Metal Products Limited Poteaux d'acier non porteurs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006200728B2 (en) * 2005-02-23 2010-12-09 Steel Building Systems Australia Pty Ltd Method of connecting floor joist to bearer in floor frame
WO2018067712A1 (fr) 2016-10-05 2018-04-12 Fortress Iron, Lp Système de charpente de tablier
EP3523490A4 (fr) * 2016-10-05 2020-05-20 Fortress Iron, LP Système de charpente de tablier
US11066830B2 (en) 2016-10-05 2021-07-20 Fortress Iron, Lp Deck framing system
US11598090B2 (en) 2016-10-05 2023-03-07 Fortress Iron, Lp Deck framing system
US11028580B2 (en) 2018-05-25 2021-06-08 Fortress Iron, Lp Deck frame with integral attachment tabs

Also Published As

Publication number Publication date
US20040163356A1 (en) 2004-08-26
CA2401289C (fr) 2011-07-26
AU2003266034A1 (en) 2004-03-29
CA2401289A1 (fr) 2004-03-05

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