WO2002038880A1 - Metal decking - Google Patents

Metal decking Download PDF

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Publication number
WO2002038880A1
WO2002038880A1 PCT/AU2001/001447 AU0101447W WO0238880A1 WO 2002038880 A1 WO2002038880 A1 WO 2002038880A1 AU 0101447 W AU0101447 W AU 0101447W WO 0238880 A1 WO0238880 A1 WO 0238880A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal decking
web
decking member
metal
adjacent
Prior art date
Application number
PCT/AU2001/001447
Other languages
French (fr)
Inventor
Campbell John Seccombe
Original Assignee
Bhp Steel 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
Priority claimed from AUPR1303A external-priority patent/AUPR130300A0/en
Priority claimed from AUPR2285A external-priority patent/AUPR228500A0/en
Priority claimed from AUPR2286A external-priority patent/AUPR228600A0/en
Application filed by Bhp Steel Limited filed Critical Bhp Steel Limited
Priority to AU1367902A priority Critical patent/AU1367902A/en
Priority to AU2002213679A priority patent/AU2002213679B2/en
Publication of WO2002038880A1 publication Critical patent/WO2002038880A1/en
Priority to HK04102791A priority patent/HK1059953A1/en

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 a method of forming metal decking.
  • the invention relates particularly though not exclusively to metal decking 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, the web being longitudinally precambered inwardly of the metal decking member.
  • the web together with the opposing flanges are longitudinally precambered.
  • a method of forming a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges, said method involving roll forming transversely oriented corrugations in at least part of the web whereby the web is longitudinally precambered inwardly of the metal decking member.
  • the transverse corrugations are cold roll formed in the web. More preferably the transverse corrugations are relatively light. 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%.
  • a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges, the web in transverse section being precambered inwardly of the metal decking.
  • precambering of the web is effective in increasing the unsupported span of the metal decking member.
  • the metal decking member is clad or embedded in a concrete slab.
  • the transverse precamber 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. More preferably the transverse precamber is between about 1% to 4%.
  • the pair of opposing flanges are disposed symmetrically either side of an imaginary longitudinal axis of the metal decking member. More preferably the C- section profile of the metal decking member is substantially symmetrical.
  • a free edge portion of the C-section metal decking member includes a lip return disposed parallel to the corresponding flange.
  • the flanges each include a longitudinally extending rib. More preferably the ribs are shaped complementary to and aligned with one another, one of the ribs protruding outwardly and the other of said ribs protruding inwardly whereby adjacent ribs of adjacent decking members nest within one another.
  • the metal decking member is one of a plurality of metal decking members arranged alongside one another to together form metal decking.
  • fixing means Preferably adjacent of the plurality of decking members are secured together via fixing means .
  • said fixing means includes one or more fasteners designed to engage adjacent flanges of adjacent decking members.
  • said fixing means includes a resilient clip configured to releasably engage free edge portions of adjacent flanges of adjacent decking members.
  • the plurality of decking members are clad or embedded in a concrete slab.
  • Figure 1 is a sectional view of one embodiment of metal decking according to the invention
  • Figure 2 is a perspective view of another embodiment of a metal decking member according to the invention.
  • Figure 3 is a sectional view of alternative fixing means of the metal decking.
  • metal decking 10 including a pair of adjacent metal decking members 12 and 14 located alongside one another.
  • the metal decking 10 is designed to be embedded or clad in a concrete slab so as to form a roof or floor.
  • the adjacent metal decking members such as 12 and 14 are of an identical cross-sectional shape being elongate and of a C-section profile.
  • the C-section metal decking member 12 includes a web 16 and a pair of opposing flanges 18 and 20, respectively.
  • the metal decking such as 12 is of the C-section profile wherein opposing free edge portions 22 and 24 of the respective flanges 18 and 20 are turned inwardly. Additionally, each of the free edge portions 22 and 24 includes a respective lip return 26 and 28 which is disposed generally parallel to the corresponding flange 18 or 20.
  • the metal decking members such as 12 and 14 are thus in cross-section of a substantially symmetrical configuration.
  • the web 16 of the metal decking member 12 is longitudinally pre-cambered inwardly of the metal decking member 12.
  • the metal decking member 12 is of the kind illustrated in Figure 1 but without the longitudinally extending ribs.
  • 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 invention 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 is also pre-cambered in transverse sectional profile inwardly.
  • the transverse pre-camber 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 flanges 18 and 20 include respective longitudinally extending ribs 30 and 32.
  • the ribs 30 and 32 are roll formed in the lower portion of the respective flange 18 and 20 adjacent the web 16.
  • One of the ribs 30 is formed as an inwardly directed protrusion whereas the other rib 32 is shaped complementary to the opposite rib 30 but directed outwardly of the decking member 12.
  • the longitudinal ribs 30 and 32 are aligned so that adjacent ribs such as 32 and 34 of adjacent decking members 12 and 14 can nest within one another.
  • nested ribs such as 32 and 34 inhibit vertical movement of the deck members 12 and 14 relative to one another and assists in alignment of the adjacent deck members 12 and 14.
  • 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 corrugating rolls (not shown) in a conventional cold roll forming manner .
  • Adjacent metal decking members 12 and 14 of this embodiment are secured together via a series of fasteners in the form of screws such as 36 which engage abutting or adjacent flange such as 18 and 20 of adjacent decking members 12 and 14.
  • the fasteners such as 36 are spaced longitudinally along the decking members such as 12 and 14.
  • Figure 3 illustrates an alternative form of fixing means for securing adjacent flanges of adjacent decking members together.
  • the fixing means is in this alternative example in the form of a resilient clip 38 which releasably engages adjacent free edge portions such as 22 and 24 of adjacent decking members 12 and 14 respectively.
  • the resilient clip 38 is used as substitute for the fastenings such as the screw 36.
  • the resilient clip 38 is of a similar profile to the free edge portions 22 and 24 arranged back to back and is configured so that it is biased inwardly to force the adjacent flanges 18 and 20 together.
  • the resilient clip 38 is thus in profile generally C-shaped with its free edge portions flared outwardly for ease of clipping or mounting about the free edge portions 22 and 24 of the adjacent flange sl ⁇ and 20 respectively.
  • 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 flanges of adjacent metal decking members of this embodiment of the invention are less vulnerable to failure in this manner.
  • the C-section profile of the decking members may vary provided the metal decking member is longitudinally and/or transversely pre-cambered inwardly • of the metal decking.
  • the metal decking member in an alternative embodiment may be of the type commercially available in Australia under the trade mark BONDER having one or more upstanding and longitudinally extending ribs. In this embodiment the web together with the upstanding ribs are precambered inwardly of the metal decking member. All such variations and modifications are to be considered within the scope of the present invention the nature of which is to be determined from the foregoing description.

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

Abstract

The present invention relates generally to metal decking 10 including a pair of adjacent metal decking members 12 and 14 located alongside one another. The adjacent metal decking members 12 and 14 are of an identical cross-sectional shape being elongate and of a C-section profile. The C-section metal decking member 12 includes a web 16 and a pair of opposing flanges 18 and 20, respectively. The web 16 of the metal decking member 12 is longitudinally pre-cambered inwardly of the metal decking member 12. The metal decking member 12 which ordinarily in a concrete slab (not shown) is thus capable of spanning an increased distance unsupported.

Description

METAL DECKING
FIELD OF THE INVENTION The present invention relates generally to metal decking and a method of forming metal decking. The invention relates particularly though not exclusively to metal decking for concrete clad roofing or flooring.
SUMMARY OF THE INVENTION
According to one aspect of the present invention there is provided a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges, the web being longitudinally precambered inwardly of the metal decking member.
Preferably the web together with the opposing flanges are longitudinally precambered.
According to another aspect of the present invention there is provided a method of forming a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges, said method involving roll forming transversely oriented corrugations in at least part of the web whereby the web is longitudinally precambered inwardly of the metal decking member.
Preferably the transverse corrugations are cold roll formed in the web. More preferably the transverse corrugations are relatively light. It has been found that longitudinal precambering of the web is effective in increasing the unsupported span of the metal decking member.
Preferably 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 .
Preferably 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%.
According to a further aspect of the present invention there is provided a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges, the web in transverse section being precambered inwardly of the metal decking.
It has been found that precambering of the web is effective in increasing the unsupported span of the metal decking member. Generally the metal decking member is clad or embedded in a concrete slab. Preferably the transverse precamber 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. More preferably the transverse precamber is between about 1% to 4%.
Preferably the pair of opposing flanges are disposed symmetrically either side of an imaginary longitudinal axis of the metal decking member. More preferably the C- section profile of the metal decking member is substantially symmetrical.
Preferably a free edge portion of the C-section metal decking member includes a lip return disposed parallel to the corresponding flange.
Preferably the flanges each include a longitudinally extending rib. More preferably the ribs are shaped complementary to and aligned with one another, one of the ribs protruding outwardly and the other of said ribs protruding inwardly whereby adjacent ribs of adjacent decking members nest within one another.
Generally the metal decking member is one of a plurality of metal decking members arranged alongside one another to together form metal decking.
Preferably adjacent of the plurality of decking members are secured together via fixing means . More preferably said fixing means includes one or more fasteners designed to engage adjacent flanges of adjacent decking members. Alternatively said fixing means includes a resilient clip configured to releasably engage free edge portions of adjacent flanges of adjacent decking members.
Preferably the plurality of decking members are clad or embedded in a concrete slab.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to facilitate a better understanding of the nature of the present invention a preferred embodiment of metal decking and its method of fabrication will now be described, by way of example only, with reference to the accompanying drawings in which:
Figure 1 is a sectional view of one embodiment of metal decking according to the invention; Figure 2 is a perspective view of another embodiment of a metal decking member according to the invention; and
Figure 3 is a sectional view of alternative fixing means of the metal decking.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in Figure 1 there is metal decking 10 including a pair of adjacent metal decking members 12 and 14 located alongside one another. The metal decking 10 is designed to be embedded or clad in a concrete slab so as to form a roof or floor.
The adjacent metal decking members such as 12 and 14 are of an identical cross-sectional shape being elongate and of a C-section profile. The C-section metal decking member 12 includes a web 16 and a pair of opposing flanges 18 and 20, respectively. The metal decking such as 12 is of the C-section profile wherein opposing free edge portions 22 and 24 of the respective flanges 18 and 20 are turned inwardly. Additionally, each of the free edge portions 22 and 24 includes a respective lip return 26 and 28 which is disposed generally parallel to the corresponding flange 18 or 20. The metal decking members such as 12 and 14 are thus in cross-section of a substantially symmetrical configuration.
As shown in Figure 2 the web 16 of the metal decking member 12 is longitudinally pre-cambered inwardly of the metal decking member 12. The metal decking member 12 is of the kind illustrated in Figure 1 but without the longitudinally extending ribs. 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. Advantageously, this longitudinal precamber provides minimal deflection of the metal decking member 12 which spans increased distances . In this embodiment 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 invention compares to a span of up to 3 metres for conventional decking without a longitudinal precamber.
As shown in Figure 1 the web 16 of the metal decking member 12 is also pre-cambered in transverse sectional profile inwardly. The transverse pre-camber 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. In this example 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 flanges 18 and 20 include respective longitudinally extending ribs 30 and 32. The ribs 30 and 32 are roll formed in the lower portion of the respective flange 18 and 20 adjacent the web 16. One of the ribs 30 is formed as an inwardly directed protrusion whereas the other rib 32 is shaped complementary to the opposite rib 30 but directed outwardly of the decking member 12. The longitudinal ribs 30 and 32 are aligned so that adjacent ribs such as 32 and 34 of adjacent decking members 12 and 14 can nest within one another. Thus, nested ribs such as 32 and 34 inhibit vertical movement of the deck members 12 and 14 relative to one another and assists in alignment of the adjacent deck members 12 and 14.
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 corrugating rolls (not shown) in a conventional cold roll forming manner .
Adjacent metal decking members 12 and 14 of this embodiment are secured together via a series of fasteners in the form of screws such as 36 which engage abutting or adjacent flange such as 18 and 20 of adjacent decking members 12 and 14. The fasteners such as 36 are spaced longitudinally along the decking members such as 12 and 14. Figure 3 illustrates an alternative form of fixing means for securing adjacent flanges of adjacent decking members together. The fixing means is in this alternative example in the form of a resilient clip 38 which releasably engages adjacent free edge portions such as 22 and 24 of adjacent decking members 12 and 14 respectively. The resilient clip 38 is used as substitute for the fastenings such as the screw 36. The resilient clip 38 is of a similar profile to the free edge portions 22 and 24 arranged back to back and is configured so that it is biased inwardly to force the adjacent flanges 18 and 20 together. The resilient clip 38 is thus in profile generally C-shaped with its free edge portions flared outwardly for ease of clipping or mounting about the free edge portions 22 and 24 of the adjacent flange slδ and 20 respectively.
Conventional metal decking members are generally of an asymmetric configuration wherein opposing flanges are turned inward and outward respectively. Thus, 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 flanges of adjacent metal decking members of this embodiment of the invention are less vulnerable to failure in this manner.
Those skilled in the art will appreciate that the invention described herein is susceptible to variations and modifications other than those specifically described. For example, the C-section profile of the decking members may vary provided the metal decking member is longitudinally and/or transversely pre-cambered inwardly • of the metal decking. The metal decking member in an alternative embodiment may be of the type commercially available in Australia under the trade mark BONDER having one or more upstanding and longitudinally extending ribs. In this embodiment the web together with the upstanding ribs are precambered inwardly of the metal decking member. All such variations and modifications are to be considered within the scope of the present invention the nature of which is to be determined from the foregoing description.
In the preceding summary of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprising" is used in the sense of "including", that is the features specified may be associated with further features in various embodiments of the invention.

Claims

THE CLAIMS :
1. A metal decking member being elongate and of a C- section profile including a web and a pair of opposing flanges, the web being longitudinally precambered inwardly of the metal decking member
2. A metal decking member as defined in claim 1 wherein the web together with the opposing flanges are longitudinally precambered.
3. A metal decking member as defined in claim 1 or 2 also including transverse corrugations cold roll formed in the web.
4. A metal decking member as defined in claim 3 wherein the transverse corrugations are relatively light.
5. A metal decking member as defined in any one of the preceding claims wherein 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.
6. A metal decking member as defined in claim 5 wherein the longitudinal precamber is between about 0.4% to 1%.
7. A metal decking member as defined in any one of the preceding claims wherein the web in transverse section is precambered inwardly of the metal decking member.
8. A metal decking member as defined in claim 7 wherein 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.
9. A metal decking member as defined in claim 7 wherein the transverse pre-camber is between about 1% to 4%.
10. A metal decking member being elongate and of a C- section profile including a web and a pair of opposing flanges, the web in transverse section being pre-cambered inwardly of the metal decking.
11. A metal decking member as defined in claim 10 wherein 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.
12. A metal decking member as defined in claim 10 wherein the transverse pre-camber is between about 1% to 4%.
13. A metal decking member as def ned in any one of the preceding claims wherein the pair of opposing flanges are disposed symmetrically either side of an imaginary longitudinal axis of the metal decking member.
14. A metal decking member as defined in claim 13 wherein the C-section profile of the metal decking member is substantially symmetrical .
15. A metal decking member as defined in any one of the preceding claims wherein a free edge portion of the C- section metal decking member includes a lip return disposed parallel to the corresponding flanges.
16. A metal decking member as defined in any one of the preceding claims wherein the flanges each include a longitudinally extending rib.
17. A metal decking member as defined in claim 16 wherein the ribs are shaped complementary to and aligned with one another, one of the ribs protruding outwardly and the other of said ribs protruding inwardly whereby adjacent ribs of adjacent decking members nest within one another.
18. A metal decking member as defined in any one of the preceding claims wherein said member is one of a plurality of metal decking members arranged alongside one another to together form metal decking.
19. A metal decking member as defined in claim 18 wherein adjacent of the plurality of decking members are secured together via fixing means.
20. A metal decking member as defined in claim 19 wherein said fixing means includes one or more fasteners designed to engage adjacent flanges of adjacent decking members.
21. A metal decking member as defined in claim 19 wherein said fixing means includes a resilient clip configured to releasably engage free edge portions of adjacent flanges of adjacent decking members.
22. A metal decking member as defined in any one of claims 18 to 21 wherein the plurality of decking members are clad or embedded in a concrete slab.
23. A method of orming a metal decking member being elongate and of a C-section profile including a web and a pair of opposing flanges, said method involving roll forming transversely oriented corrugations in at least part of the web whereby the web is longitudinally precambered inwardly of the metal decking member.
24. A method of orming a metal decking member as defined in claim 23 wherein the transverse corrugations are cold roll formed in the web.
25. A method of forming a metal decking member as defined in claim 3 wherein the transverse corrugations are relatively light.
26. A method of forming a metal decking member in any one of claims 23 to 25 wherein the metal decking member is cold roll formed.
PCT/AU2001/001447 2000-11-08 2001-11-08 Metal decking WO2002038880A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU1367902A AU1367902A (en) 2000-11-08 2001-11-08 Metal decking
AU2002213679A AU2002213679B2 (en) 2000-11-08 2001-11-08 Metal decking
HK04102791A HK1059953A1 (en) 2000-11-08 2004-04-21 Metal decking

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AUPR1303 2000-11-08
AUPR1303A AUPR130300A0 (en) 2000-11-08 2000-11-08 Metal decking
AUPR2286 2000-12-22
AUPR2285 2000-12-22
AUPR2285A AUPR228500A0 (en) 2000-12-22 2000-12-22 Metal decking
AUPR2286A AUPR228600A0 (en) 2000-12-22 2000-12-22 Metal decking

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WO2002038880A1 true WO2002038880A1 (en) 2002-05-16

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PCT/AU2001/001446 WO2002038885A1 (en) 2000-11-08 2001-11-08 Metal decking
PCT/AU2001/001447 WO2002038880A1 (en) 2000-11-08 2001-11-08 Metal decking

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EP (1) EP1337723A4 (en)
CN (2) CN1227427C (en)
AU (4) AU2002213679B2 (en)
HK (1) HK1059953A1 (en)
MY (2) MY129013A (en)
TW (2) TW531588B (en)
WO (2) WO2002038885A1 (en)

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* Cited by examiner, † Cited by third party
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EP1408172A1 (en) * 2002-10-11 2004-04-14 Poly-Metal MCR Establishment Building element made from sheet-metal cassettes
AU782668B2 (en) * 2001-01-17 2005-08-18 Bluescope Steel Limited Roof panels
US7310984B2 (en) 2003-03-27 2007-12-25 Bluescope Steel Limited Forming apparatus for precambered metal sections
WO2009013470A2 (en) * 2007-07-20 2009-01-29 Wernick Buildings Limited Modular building system
ITBA20080027A1 (en) * 2008-07-29 2010-01-29 Corsaro & Lisco Ferroprofili S P A FLOOR FOR ELECTRO-HYDRAULIC PLATFORMS, CONSISTING OF A PLURALITY OF MODULAR STEEL ELEMENTS WITH HIGH RESISTANCE AND LOW THICKNESS, COLD SIZE, ASSEMBLABLE BETWEEN THEM WITHOUT THE NEED TO CARRY OUT WELDING OPERATIONS

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* Cited by examiner, † Cited by third party
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WO2007056833A1 (en) * 2005-11-21 2007-05-24 Bluescope Steel Limited Cast in situ concrete slab
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EP1408172A1 (en) * 2002-10-11 2004-04-14 Poly-Metal MCR Establishment Building element made from sheet-metal cassettes
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AU2326802A (en) 2002-05-21
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CN1473230A (en) 2004-02-04
AU2002213679B2 (en) 2006-04-13
CN1227427C (en) 2005-11-16
TW503295B (en) 2002-09-21
MY129012A (en) 2007-03-30
MY129013A (en) 2007-03-30
CN1473229A (en) 2004-02-04
TW531588B (en) 2003-05-11
CN1252363C (en) 2006-04-19
HK1059953A1 (en) 2004-07-23
AU1367902A (en) 2002-05-21
AU2002223268B2 (en) 2007-04-05

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