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EP1337723A1 - Support metallique - Google Patents

Support metallique

Info

Publication number
EP1337723A1
EP1337723A1 EP01993732A EP01993732A EP1337723A1 EP 1337723 A1 EP1337723 A1 EP 1337723A1 EP 01993732 A EP01993732 A EP 01993732A EP 01993732 A EP01993732 A EP 01993732A EP 1337723 A1 EP1337723 A1 EP 1337723A1
Authority
EP
European Patent Office
Prior art keywords
metal decking
decking member
web
adjacent
pair
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.)
Withdrawn
Application number
EP01993732A
Other languages
German (de)
English (en)
Other versions
EP1337723A4 (fr
Inventor
Campbell John Seccombe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BlueScope Steel Ltd
Original Assignee
BHP Steel JLA Pty Ltd
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
Priority claimed from AUPR1303A external-priority patent/AUPR130300A0/en
Priority claimed from AUPR2286A external-priority patent/AUPR228600A0/en
Priority claimed from AUPR2285A external-priority patent/AUPR228500A0/en
Application filed by BHP Steel JLA Pty Ltd filed Critical BHP Steel JLA Pty Ltd
Publication of EP1337723A1 publication Critical patent/EP1337723A1/fr
Publication of EP1337723A4 publication Critical patent/EP1337723A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/08—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of metal, e.g. sheet metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
    • E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/366—Connecting; Fastening by closing the space between the slabs or sheets by gutters, bulges, or bridging elements, e.g. strips

Definitions

  • the present invention relates generally to metal decking and relates particularly, though not exclusively, to a metal decking member for concrete clad roofing or flooring.
  • a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges each including a longitudinally extending rib being configured wherein said rib can interlock with an adjacent rib of an adjacent metal decking member.
  • the opposing pair of longitudinally extending ribs are in transverse cross-section shaped complementary to and are substantially aligned with one another. More preferably said pair of ribs protrude inwardly and outwardly, respectively, of the decking member.
  • the opposing pair of ribs are in transverse cross-section shaped wherein adjacent interlocked ribs reside within one another to prevent lateral separation of the adjacent metal decking members. More preferably the outwardly protruding rib of one decking member resides within an inwardly protruding rib of an adjacent decking member.
  • a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges, one of said pair of opposing flanges being of a lower stiffness relative to the other of said pair of opposing flanges.
  • the lower stiffness of said one of the flanges is provided by a reduction in the surface area of said one flange relative to the other flange.
  • one of said pair of opposing flanges is adapted to interlock with an adjacent flange of an adjacent decking member.
  • the opposing flanges each include a longitudinally extending rib being configured wherein said rib can interlock with an adjacent rib of an adjacent metal decking member.
  • the metal decking member is of the C- section profile wherein the opposing flanges each having inwardly directed portions. More preferably a free edge portion of each of the inwardly directed portions includes a lip return disposed parallel to the corresponding flange .
  • each of the flanges includes one or more openings. More preferably said one or more openings are defined by longitudinally extending slits formed in the inwardly directed portions which are deformed out of the plane of the corresponding flange. The openings assist in the venting of air which would otherwise be "trapped" as air pockets within the flanges when pouring concrete across the decking member.
  • the metal decking member is one of a plurality of metal decking members arranged alongside one another to together form metal decking.
  • the web is longitudinally precambered inwardly of the metal decking member. It has been found that longitudinal precambering of the web is effective in increasing the unsupported span of the metal decking member .
  • the longitudinal precamber is up to about 2% measured as the maximum longitudinal offset of the web from a substantially flat plane and expressed as a percentage relative to the length of the web. More preferably the longitudinal precamber is between about 0.4% to 1%. In one embodiment this equates to a precamber of between about 20 to 50 mm for an unsupported span of 5 metres .
  • the web in transverse section is precambered inwardly of the metal decking member. More preferably the transverse pre-camber is up to about 5% measured as the maximum offset of the web from a substantially flat plane and expressed as a percentage relative to the width of the web. Still more preferably the transverse pre-camber is between about 1% to 4%.
  • Figure 1 is a sectional view of one embodiment of a metal decking member according to the invention.
  • Figure 2 is a schematic sectional view of another embodiment of metal decking according to the invention.
  • Figure 3 is a perspective view of a further embodiment of metal decking according to the invention.
  • a metal decking number 10 being elongate and of a C-section profile including a web 12 and a pair of opposing flanges 14 and 1G, respectively.
  • the metal decking member 10 is one of a plurality of decking members such as 10 and 18 located alongside one another to together form metal decking 20 (see Figure 2) .
  • the metal decking 20 is designed to be embedded or clad in a concrete slab so as to form a roof or floor.
  • similar components of the embodiments of the metal decking members 10 of Figures 1 and 2 have been designated with the same reference numerals.
  • the adjacent metal decking members such as 10 are of an identical cross-sectional shape being of the C-section profile wherein opposing flanges each include inwardly directed portions 22 and 24. Additionally, each of the inwardly directed portions 22 and 24 include a respective lip return 26 and 28 which is either turned back toward or disposed generally parallel to the corresponding flange 14 or 16.
  • the flanges 14 and 16 include respective longitudinally extending ribs 30 and 32.
  • the longitudinal ribs 30 and 32 are configured so that adjacent ribs of adjacent decking members interlock to prevent lateral and vertical separation of the metal decking members such as 10 and 18. This interlocking of the ribs 30 and 32 eliminates the need for fasteners to secure adjacent decking members such as 10 and 18 together.
  • interlocking of the ribs such as 30 and 32 is provided by having the ribs 30 and 32 shaped complementary to and substantially aligned with one another so that one of the ribs such as 30 resides within the other rib 32.
  • the metal decking member 10 of Figure 1 includes a pair of generally C-shaped ribs 30 and 32 which protrude outwardly and inwardly, respectively, of the decking member 10.
  • the C-shaped ribs 30 and 32 are formed in an upright portion of the respective flange 14 and 16.
  • the decking members such as 10 and 18 of Figure 2 include the longitudinal ribs 30 and 32 within the flange adjacent the juncture of the upright portion and the inwardly directed portion of the flange 14 or 16.
  • the ribs 14 and 16 are in this example generally U-shaped in transverse cross-section.
  • the ribs 30 and 32 of both embodiments are roll formed in the respective flange 14 and 16.
  • Conventional metal decking members are generally of an asymmetric configuration wherein opposing flanges are turned inward and outward respectively.
  • the conventional metal decking is formed by overlapping adjacent flanges.
  • the tendency for conventional metal decking is to fail under load wherein the adjacent overlapping flanges collapse or rotate toward the web of one of the decking members. It is understood that the abutting or interlocking flanges of adjacent metal decking members of this embodiment of the invention are less vulnerable to failure in this manner.
  • one of the pair of opposing flanges is of a lower stiffness relative to the interlocking flange 14. This is achieved by reducing the surface area or in this example the width dimension of the inwardly directed portion 24 of the less stiff flange 16 relative to that of the other flange 14.
  • the less stiff flange 16 has a tendency to deflect or rotate outwardly before the interlocking flange 14.
  • the less stiff flange 16 may be designed to about 90% of the stiffness of flange 14. This reduction in stiffness is provided by reducing the surface area of the portion of the flange disposed above the rib for the less stiff flange relative to the corresponding portion of the other flange.
  • the load of concrete within the metal decking member such as 18 forces interlocking engagement of the less stiff flange 16 with the flange 14 of the adjacent decking member 10.
  • the adjacent metal decking members 10 and 18 are thus "tied” together without the need for a fastener which is onerous.
  • the inwardly directed portions 22 and 24 may include openings to allow air to vent from the flanges when concrete is poured across the metal decking. The air may otherwise be trapped as air pockets particularly within the area enclosed by the lip returns 26 and 28 of the inwardly directed portions 22 and 24, respectively.
  • the openings are formed by a plurality of longitudinally extending slits in the inwardly directed portions 22 and 24 which are pressed upward out of the plane of the respective flange.
  • the slits are formed as transversely spaced pairs each of a length of about 8 mm and the adjacent inwardly directed portion such as 22 is pressed about 3 mm out of the plane of the respective flange.
  • the slits formed in the flanges also promote the engagement of concrete with the decking member .
  • Figure 3 illustrates a further embodiment of the invention where the web 16 of the metal decking member 12 is longitudinally pre-cambered inwardly of the metal decking member 12.
  • the metal decking member which ordinarily is embedded in a concrete slab (not shown) is thus capable of spanning an increased distance unsupported.
  • the precamber of the web 16 is in this example about 0.6% measured as the maximum longitudinal offset of the web from a substantially flat plane and expressed as a percentage relative to the length of the web 16. It is understood that the longitudinally precambered web 16 is at least partly deflected toward the flat plane under the significant weight of the concrete slab.
  • this longitudinal precamber provides minimal deflection of the metal decking member 12 which spans increased distances.
  • the metal decking member 12 spans up to about 5 metres unsupported and includes a longitudinal precamber of about 30 mm which corresponds to 0.6 percent .
  • the unsupported span of 5 metres of this embodiment of the intention compares to a span of up to 3 metres for conventional decking without a longitudinal precamber.
  • the web 16 of the metal decking member 12 may also be pre-cambered in transverse sectional profile inwardly.
  • the transverse precamber of the web 16 in this example is approximately 2% measured as the maximum offset of the web 16 from a substantially flat plane and expressed as a percentage relative to the width of the web 16.
  • the metal decking member 12 has a width of approximately 300 mm and is roll formed from sheet metal of a thickness of about 1.2 mm.
  • the longitudinal precamber in the web 16 of the metal decking member 12 is formed by corrugating the web 16.
  • the corrugations (not shown) are oriented transverse and extend partly across the width of the web 16.
  • the transverse corrugations are cold roll formed in the web 16 are sufficiently "light” to provide the preferred longitudinal precamber of up to about 2%.
  • the corrugations may be formed either in the flat strip or in the web 16 once it is formed into the C-section profile. Otherwise, corrugation of the web 16 is performed via corrugting rolls (not shown) in a conventional cold roll forming manner.
  • the longitudinal ribs of the opposing flanges may vary in configuration provided they permit interlocking of adjacent decking members.
  • the less stiff flange may vary in constructions from that described provided it promotes interlocking of adjacent flanges of adjacent decking members.
  • the web is longitudinally and/or transversely precambered inwardly of the decking member whereby it can span increased distances unsupported. All such variations and modifications are to be considered within the ambit of the present invention the nature of which is to be determined from the foregoing description.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Structures (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Metal Rolling (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

L'invention concerne de manière générale un élément (10) de support métallique allongé présentant un profil en C et comprenant une bande (12) et deux rebords (14) et (16) opposés. Cet élément (10) du support fait partie d'une pluralité d'éléments de support métalliques tels que (10 et 18), qui sont disposés les uns à côté des autres pour former ensemble un support métallique (20). Ce support (20) métallique est conçu pour être incorporé dans ou recouvert par une dalle de béton afin de former un toit ou un plancher. Les rebords (14 et 16) comprennent des nervures (30 et 32) longitudinales respectives. Ces nervures (30 et 32) longitudinales sont formées de telle manière que les nervures des éléments de support adjacents se verrouillent l'une avec l'autre et empêchent la séparation latérale et verticale des éléments (10 et 18) de support.
EP01993732A 2000-11-08 2001-11-08 Support metallique Withdrawn EP1337723A4 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
AUPP130300 2000-11-08
AUPR1303A AUPR130300A0 (en) 2000-11-08 2000-11-08 Metal decking
AUPP228500 2000-12-22
AUPR2286A AUPR228600A0 (en) 2000-12-22 2000-12-22 Metal decking
AUPR2285A AUPR228500A0 (en) 2000-12-22 2000-12-22 Metal decking
AUPP228600 2000-12-22
PCT/AU2001/001446 WO2002038885A1 (fr) 2000-11-08 2001-11-08 Support metallique

Publications (2)

Publication Number Publication Date
EP1337723A1 true EP1337723A1 (fr) 2003-08-27
EP1337723A4 EP1337723A4 (fr) 2006-01-25

Family

ID=27158253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01993732A Withdrawn EP1337723A4 (fr) 2000-11-08 2001-11-08 Support metallique

Country Status (7)

Country Link
EP (1) EP1337723A4 (fr)
CN (2) CN1252363C (fr)
AU (4) AU2002213679B2 (fr)
HK (1) HK1059953A1 (fr)
MY (2) MY129013A (fr)
TW (2) TW531588B (fr)
WO (2) WO2002038885A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU782668B2 (en) * 2001-01-17 2005-08-18 Bluescope Steel Limited Roof panels
DE50300282D1 (de) * 2002-10-11 2005-03-03 Poly Metal Mcr Establishment V Bauteil aus einer Mehrzahl von Blechkassetten
US7310984B2 (en) 2003-03-27 2007-12-25 Bluescope Steel Limited Forming apparatus for precambered metal sections
WO2007056833A1 (fr) * 2005-11-21 2007-05-24 Bluescope Steel Limited Dalle de beton coulee sur place
GB0714255D0 (en) * 2007-07-20 2007-08-29 Wernick Buildings Ltd Modulator building system
EP2225424B1 (fr) * 2007-11-13 2018-01-10 Casata Technologies Inc. Poutre métalique pour applications destinées aux planchers surélevés
ITBA20080027A1 (it) * 2008-07-29 2010-01-29 Corsaro & Lisco Ferroprofili S P A Pianale per pedane elettro-idrauliche, costituito da una pluralita' di elementi modulari in acciaio ad elevata resistenza e basso spessore, formati a freddo, assemblabili tra loro senza la necessita' di effettuare operazioni di saldatura
AU2013206540B1 (en) * 2013-06-26 2014-09-11 Inhabit Studio Limited An edge-formwork element with integrated channel
CN107829529A (zh) * 2017-11-10 2018-03-23 中铁第四勘察设计院集团有限公司 一种侧向连接的屋面底板及屋面板系统
USD949442S1 (en) * 2019-04-23 2022-04-19 Epic Metals Corporation Roofing deck

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2180317A (en) * 1939-05-27 1939-11-14 American Cyanamid & Chem Corp Metal decking
DE823500C (de) * 1945-11-14 1951-12-03 Henri Guelain Geschossdecke fuer Gebaeude in Metallkonstruktion
FR1311704A (fr) * 1962-01-23 1962-12-07 Fond S Procédé de construction de dalles en béton armé
FR90968E (fr) * 1966-05-25 1968-03-22 Union De Travaux Et D Entpr S Armature-coffrage pour planchers en béton armé
GB1249765A (en) * 1969-06-19 1971-10-13 Alcan Res & Dev Improvements in wall or ceiling panels
US4882889A (en) * 1987-02-26 1989-11-28 Monier Limited Composite structures
JP2000129847A (ja) * 1998-10-22 2000-05-09 Sumitomo Metal Steel Products Inc 床パネル及びその製造方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462906A (en) * 1967-07-13 1969-08-26 Patrick L Schroyer Coupled channel panelling for ceilings,roofs,siding and the like
US3902288A (en) * 1972-02-14 1975-09-02 Knudson Gary Art Arched roof self-supporting building
US4424652A (en) * 1980-10-31 1984-01-10 Turner Arthur R Pre-cambered steel beam
WO1986000363A1 (fr) * 1984-06-28 1986-01-16 Wade Hylton Blazley Assemblage de panneaux de construction
FR2641812B1 (fr) * 1988-12-22 1993-01-29 Profilafroid Sa Profile, notamment metallique, pour la constitution de structures telles que planchers autoportants et parois, et structure obtenue
FI91181C (fi) * 1992-07-01 1994-05-25 Rautaruukki Oy Teräsbetoninen liittorakenne
GB9300478D0 (en) * 1993-01-07 1993-03-03 Hunter Douglas Ind Bv A panel system and a panelling member therefor
AUPN940996A0 (en) * 1996-04-22 1996-05-16 Bhp Steel (Jla) Pty Limited Cladding element
DK199900521A (da) * 1999-04-19 2000-10-20 Dampa As Loftspanel
JP3526423B2 (ja) * 1999-11-26 2004-05-17 鈴東株式会社 仮囲い用パネルの取付金具

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2180317A (en) * 1939-05-27 1939-11-14 American Cyanamid & Chem Corp Metal decking
DE823500C (de) * 1945-11-14 1951-12-03 Henri Guelain Geschossdecke fuer Gebaeude in Metallkonstruktion
FR1311704A (fr) * 1962-01-23 1962-12-07 Fond S Procédé de construction de dalles en béton armé
FR90968E (fr) * 1966-05-25 1968-03-22 Union De Travaux Et D Entpr S Armature-coffrage pour planchers en béton armé
GB1249765A (en) * 1969-06-19 1971-10-13 Alcan Res & Dev Improvements in wall or ceiling panels
US4882889A (en) * 1987-02-26 1989-11-28 Monier Limited Composite structures
JP2000129847A (ja) * 1998-10-22 2000-05-09 Sumitomo Metal Steel Products Inc 床パネル及びその製造方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 08, 6 October 2000 (2000-10-06) & JP 2000 129847 A (SUMITOMO METAL STEEL PRODUCTS INC), 9 May 2000 (2000-05-09) *
See also references of WO0238885A1 *

Also Published As

Publication number Publication date
MY129013A (en) 2007-03-30
CN1227427C (zh) 2005-11-16
EP1337723A4 (fr) 2006-01-25
TW503295B (en) 2002-09-21
CN1473230A (zh) 2004-02-04
CN1252363C (zh) 2006-04-19
CN1473229A (zh) 2004-02-04
WO2002038880A1 (fr) 2002-05-16
HK1059953A1 (en) 2004-07-23
WO2002038885A1 (fr) 2002-05-16
AU1367902A (en) 2002-05-21
AU2326802A (en) 2002-05-21
TW531588B (en) 2003-05-11
MY129012A (en) 2007-03-30
AU2002213679B2 (en) 2006-04-13
AU2002223268B2 (en) 2007-04-05

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