WO1993012303A1 - Panneau renforce de construction composite - Google Patents

Panneau renforce de construction composite Download PDF

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Publication number
WO1993012303A1
WO1993012303A1 PCT/AU1992/000664 AU9200664W WO9312303A1 WO 1993012303 A1 WO1993012303 A1 WO 1993012303A1 AU 9200664 W AU9200664 W AU 9200664W WO 9312303 A1 WO9312303 A1 WO 9312303A1
Authority
WO
WIPO (PCT)
Prior art keywords
bridging member
composite building
building panel
reinforced composite
core
Prior art date
Application number
PCT/AU1992/000664
Other languages
English (en)
Inventor
Barry George Seach
Original Assignee
James Hardie & Coy. Pty. 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 James Hardie & Coy. Pty. Limited filed Critical James Hardie & Coy. Pty. Limited
Publication of WO1993012303A1 publication Critical patent/WO1993012303A1/fr

Links

Classifications

    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
    • E04C2/384—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a metal frame
    • 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
    • E04C2/04—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 concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—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 concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced

Definitions

  • the present invention relates to an improved composite building panel for use in constructing walls, partitions and the like.
  • the invention has been developed primarily for improving the strength of lightweight panels incorporating lightweight core materials and will be described hereinafter with reference to this use. However, it will be appreciated that the invention is not limited to this particular type of panel.
  • Composite building panels of the kind referred to above made by placing a lightweight core material between two flat, parallel facing sheets are widely used.
  • Panels of this type are typically manufactured by filling the space between two adjacent fibre reinforced cement (FRC) sheets with a lightweight concrete core.
  • FRC fibre reinforced cement
  • Such lightweight concrete cored panels are generally only suitable for the construction of non-load bearing fire rated walls and partitions as they do not have sufficient strength for load-bearing applications.
  • the bending strength of these lightweight concrete cored panels is primarily due to the strength of the facing sheets.
  • Another known option is to reinforce the individual facing sheets. Whilst this may serve to increase the relative bending strength of the facing sheets, it has been found that the most likely result is that the panels will then fail by core shear failure.
  • a reinforced composite building panel comprising, two parallel opposed spaced apart facing sheets, an intermediate core of cementitious material adhered therebetween, and at least one reinforcing bridging member disposed intermediate said facing sheets and at least partially embedded within said core, said bridging member having an ultimate shear strain to failure that is greater than that of the cementitious core.
  • the bridging member extends substantially the thickness of the core.
  • the bridging member is connected to one or both of the opposing faces of the facing sheets with a suitable adhesive and/or suitable mechanical fasteners.
  • the facing sheets are made from fibre reinforced cement (FRC) .
  • the cementitious core comprise a low density material such as foamed concrete or a lightweight aggregate concrete incorporating, for example, expanded mineral bead ⁇ or other suitable - A - materials .
  • the bridging member includes flange means extending from an interconnecting web, the flanges serving to both assist connection of the bridging member to the facing sheets and simultaneously stiffen the facing sheets.
  • the bridging members are in the form of elongate sheet metal channel sections or Z-section studs.
  • the web of the bridging member is profiled to form a tongue and groove profile, which when located at the edge of a panel can simultaneously serve as a means of jointing the panels.
  • the web of the bridging member is perforated to minimise thermal conduction through the thickness of the panel.
  • Figure 1 is a schematic perspective view of a first embodiment composite building panel according to the invention.
  • Figure 2 is a schematic sectional view of a second variation of the building panel shown in Figure 1.
  • Figure 3 is a schematic sectional view of a second embodiment panel according to the invention.
  • Figure 4 is a schematic perspective view of a bridging member particularly suited for use in a fire resistant panel according to the invention.
  • Figure 5 is another suitable bridging member for use in a panel according to the invention.
  • Figures 6 and 7 are schematic perspective views of a third embodiment of the panel according to the invention where the bridging members simultaneously form tongue and groove jointing edges.
  • Figures 8 and 9 show another variation on the tongue and groove arrangement shown in Figures 6 and 7.
  • Figure 10 is a schematic perspective view of a fourth embodiment wherein the bridging member forms a protective edge to the panel.
  • the building panel 1 comprises two parallel opposed spaced apart facing sheets 2 preferably made from fibre reinforced concrete (FRC) and an intermediate core of compression resistant cementitious material 3 adhered between the sheets 2.
  • the core material comprises in the preferred embodiments either a lightweight foamed concrete or a lightweight aggregate concrete.
  • cementitious materials such as gypsum or portland cement can also be used.
  • At least one substantially channel shaped sheet metal bridging member or reinforcing member 4 comprising connecting flanges 5 and an interconnecting web 6. Stiffening flanges 7 are also provided in the first embodiment which extend contiguously from connecting flanges 5.
  • the bridging member 4 connects to at least one of the opposing faces of the facing sheets 2 by means of adhesive applied to the connecting flanges 5.
  • FIG 2 there is shown a second embodiment of the invention where the bridging member is again in the form of a channel as shown in Figure 1 but incorporating wider connecting flanges 5. These wider flanges serve to increase the proportion of the reinforcement in contact with the FRC facing sheets to further stiffen the facing sheets 2.
  • Figure 3 shows an embodiment of the panel again utilising a channel shaped bridging member, this version omitting the stiffening flanges 7 shown in Figures 1 and 2.
  • Figure 4 illustrates an alternate bridging member or reinforcing member 4 suitable for use in a fire resistant panel according to the invention.
  • the panel includes a plurality of perforations or cut-outs 8 in the interconnecting web 9.
  • Figure 5 shows a further alternate channel shaped bridging member 4 including corrugated stiffening flanges 7 to improve the connection between the bridging member and the lightweight concrete core.
  • Figures 6 to 10 illustrate various embodiments wherein the reinforcing bridging members are positioned at the edge of the panel to strengthen this part of the panel and, in Figures 6 to 9, simultaneously provide a tongue and groove arrangement for jointing the panels.
  • Figures 1, 2 and 3 show the bridging member 4 fully within the core 3 between the facing sheets 2.
  • the bridging member 4 may also be arranged so that while its flanges are embedded within the core 3, its web 6 is exposed to form one edge of the panel 1 as shown in Figures 6 to 10.
  • Web 6 when thus exposed to form one edge of the panel 1 may usefully be contoured into a non-flat profile such as a tongue or groove profile that can be used for jointing of panels. Two such arrangements are shown in Figures 6 to 9.
  • the facing sheets are spaced apart and one or more bridging members or reinforcing channels are arranged therebetween. It may be advantageous to attach the reinforcing channels to one or both of the sheets first by means of adhesive or mechanical fasteners. However, this is not essential as the cementitious core will adhere to the facing sheets and bridging members to assemble the panel. Lightweight concrete is then poured into the cavities between the facing sheets. The concrete is then allowed to cure, either naturally or by accelerated means, until the panel has sufficient strength to be removed from its mould without damage.
  • Lightweight concrete for use in manufacture of building panels is typically made by adding either pre-made air/water chemical foam or expanded lightweight aggregate beads to a water borne cement slurry.
  • the density of lightweight concrete typically ranges from 200kg/m 3 to 1800 kg/m 3 .
  • Normal weight concrete has a density typically in the range 1800kg/m 3 to 2600kg/m 3 .
  • Composite building panels are also commonly made by fastening sheets, such as FRC sheets, as facings to both sides of a metal frame comprising sheet metal channel studs, top and bottom plates and noggins. Panels of this type may also be filled with low density insulation for increased thermal resistance. However, physical testing has shown that metal framed panels generally fail in bending when the metal channel studs fail by buckling.
  • Two sets of four composite building panels specimens were made from the same batch of metal stud bridging or reinforcing members and facing sheets. They were all 1200mm long x 600mm wide x 75mm thick, with 4.5mm thick "Versilux" panels which are FRC facing sheets manufactured by James Hardie & Coy Pty Ltd.
  • each panel four galvanised steel channels 64mm deep x 35mm wide x 0.55mm steel thickness were aligned in the long direction of the panel, equally spaced and adhesive bonded to the FRC facing sheets with for example, a solvent based neoprene such as that manufactured by the H.B. Fuller Company sold under the trade mark "Fulaprene 303".
  • a solvent based neoprene such as that manufactured by the H.B. Fuller Company sold under the trade mark "Fulaprene 303”.
  • One set of four specimens was filled with lightweight concrete of 600kg/m 3 nominal density.
  • test results given in table 1 demonstrate the ultimate strength, deflection and energy of fracture of each foamed concrete cored panel is greater than that of each of the non-cored panels.
  • the presence of the lightweight concrete core prevented buckling of the steel channel stud reinforcement enabling it to hold a higher load before failure in yielding.
  • the prevention of buckling failure by the lightweight concrete core also allows use of reinforcement channels with undulating stiffening flanges as shown in figure 5. Such undulating flanges increase the connection between the reinforcement channel and the lightweight concrete core increasing the strength of the panel.
  • metal reinforcement channels which are bonded to the facing sheets in a composite building panel filled with a lightweight concrete core serves to restrain the core during fire exposure preventing dislodgment. This increases the time for which the panel is able to resist fire.
  • metal reinforcement channels allows manufacture of panels with joints in their facing sheets, without large losses in strength and stiffness.
  • the physical testing has therefore shown, that when cured, the panels according to the invention have higher bending strength than either unreinforced composite panels or hollow cored metal framed panels.
  • the lightweight concrete core When the panels according to the invention are subjected to bending, the lightweight concrete core provides support to the metal cnannel studs. This support prevents buckling failure of the metal channel studs which are able to carry a higher load than if the-y had buckled.
  • the lightweight concrete core also bonds the facing sheets together so that they also make a significant contribution to the bending strength of the panels.
  • the bending strength of metal framed panels faced with FRC sheets is primarily due to the strength of the metal frame.
  • the impact strength of these panels is low because the FRC facing sheets are only supported over the framing. Between the framing, the support given to the FRC facing sheets by the foamed plastic insulation material, if present, is minimal.
  • the bridging member may be made from other materials, the only requirement being that the bridging member have a higher shear strain to failure than the core material.
  • the embodiments described use substantially ' C - shaped channel sections, other section shapes can also be used such as 'Z' section, "I" section etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

L'invention concerne des panneaux (1) de construction composites du type comprenant deux plaques (2) de revêtement parallèles, opposées et espacées par un noyau (3) intermédiaire en un matériau à base de ciment adhérant aux deux plaques. Les panneaux selon l'invention comportent un élément (4) de connexion servant de renforcement disposé entre les plaques de revêtement et qui est au moins partiellement noyé dans le noyau à base de ciment. Cet élément (4) de connexion présente une résistance au cisaillement à la rupture supérieure à celle du noyau à base de ciment. L'élément de connexion servant de renforcement augmente aussi bien la résistance des panneaux à la flexion que leur résistance aux impacts, le matériau à base de ciment contribuant à empêcher l'élément de connexion de céder par flambage. Ceci permet d'utiliser des éléments de renforcement relativement légers. En outre, les renforcements peuvent avantageusement être positionnés le long du bord du panneau et comporter des moyens pour relier les panneaux.
PCT/AU1992/000664 1991-12-18 1992-12-16 Panneau renforce de construction composite WO1993012303A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL009591 1991-12-18
AUPL0095 1991-12-18

Publications (1)

Publication Number Publication Date
WO1993012303A1 true WO1993012303A1 (fr) 1993-06-24

Family

ID=3775894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000664 WO1993012303A1 (fr) 1991-12-18 1992-12-16 Panneau renforce de construction composite

Country Status (3)

Country Link
AU (1) AU3152593A (fr)
TW (1) TW252175B (fr)
WO (1) WO1993012303A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808959A2 (fr) * 1996-05-21 1997-11-26 Adolf Imhoff Système composite pour constructions avec des panneaux autoportants
WO1998035115A1 (fr) * 1997-02-07 1998-08-13 Fibrobeton Yapi Elemanlari Sanayii Insaat Ve Tic.Ltd.Sti. Panneau mural prefabrique en ciment renforce par des fibres (grc)
WO1999053155A1 (fr) * 1998-04-09 1999-10-21 Unipanel Pty. Ltd. Panneau de construction en metal recouvert de papier et panneaux composites utilisant ledit panneau
AU727384B2 (en) * 1998-04-09 2000-12-14 Companel Pty Ltd A building panel
EP1126096A3 (fr) * 2000-02-18 2001-10-24 Sergio Zambelli Armature de renforcement à adhérence améliorée, pour panneaux préfabriqués en béton
WO2002050383A1 (fr) * 2000-12-21 2002-06-27 Sam-Sin, Robert Structure porteuse plane transportable
WO2003006761A1 (fr) * 2001-07-10 2003-01-23 City Administration Limited Panneau de construction
EP1617003A3 (fr) * 2004-07-15 2007-01-10 KUKA Schweissanlagen GmbH Planchers modulaires pour unités de fabrication
CN102003007A (zh) * 2010-10-26 2011-04-06 吴方伯 一种带肋钢筋混凝土预制构件板
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
CN108166657A (zh) * 2017-12-26 2018-06-15 中国十七冶集团有限公司 一种冷弯薄壁z型钢和秸秆板材组合的钢木组合楼盖
WO2019234389A1 (fr) * 2018-06-04 2019-12-12 Pbp Berlani Holding Ltd Améliorations dans ou relatives à des structures de construction
GB2577153A (en) * 2018-06-04 2020-03-18 Pbp Berlani Holding Ltd Improvements in or relating to building structures
WO2020109871A1 (fr) * 2018-11-27 2020-06-04 Gibs Building Tech Pty Ltd Système de préfabrication de bâtiment, panneau mural préfabriqué et panneau de plancher préfabriqué associé
EP4292809A1 (fr) * 2022-06-17 2023-12-20 Sika Technology AG Panneaux comprenant une mousse inorganique durcie et un élément de renforcement structurel, leurs procédés de fabrication et leur utilisation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667060A (en) * 1948-02-12 1954-01-26 Neal J Campbell Reinford building panel
US2839812A (en) * 1956-03-12 1958-06-24 Henry A Berliner Method of manufacturing a structural panel
GB1360430A (en) * 1970-10-24 1974-07-17 Blum E Facade element for cladding the outer walls of buildings
DE2422091A1 (de) * 1973-05-07 1974-11-21 Pacenti Robert Allan Tragendes leichtbauplattenelement aus metall
US3905171A (en) * 1972-02-28 1975-09-16 Don A Cargill Building panels
GB1600653A (en) * 1977-01-28 1981-10-21 Sartorio S Compositeprefabricated building element and a method of manufacture thereof
GB2077802A (en) * 1980-04-13 1981-12-23 Koor Metals Ltd Blast and fragment-resistant protective wall structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667060A (en) * 1948-02-12 1954-01-26 Neal J Campbell Reinford building panel
US2839812A (en) * 1956-03-12 1958-06-24 Henry A Berliner Method of manufacturing a structural panel
GB1360430A (en) * 1970-10-24 1974-07-17 Blum E Facade element for cladding the outer walls of buildings
US3905171A (en) * 1972-02-28 1975-09-16 Don A Cargill Building panels
DE2422091A1 (de) * 1973-05-07 1974-11-21 Pacenti Robert Allan Tragendes leichtbauplattenelement aus metall
GB1600653A (en) * 1977-01-28 1981-10-21 Sartorio S Compositeprefabricated building element and a method of manufacture thereof
GB2077802A (en) * 1980-04-13 1981-12-23 Koor Metals Ltd Blast and fragment-resistant protective wall structure

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808959A3 (fr) * 1996-05-21 1999-06-09 Adolf Imhoff Système composite pour constructions avec des panneaux autoportants
EP0808959A2 (fr) * 1996-05-21 1997-11-26 Adolf Imhoff Système composite pour constructions avec des panneaux autoportants
WO1998035115A1 (fr) * 1997-02-07 1998-08-13 Fibrobeton Yapi Elemanlari Sanayii Insaat Ve Tic.Ltd.Sti. Panneau mural prefabrique en ciment renforce par des fibres (grc)
WO1999053155A1 (fr) * 1998-04-09 1999-10-21 Unipanel Pty. Ltd. Panneau de construction en metal recouvert de papier et panneaux composites utilisant ledit panneau
AU727384B2 (en) * 1998-04-09 2000-12-14 Companel Pty Ltd A building panel
US6834468B1 (en) 1998-04-09 2004-12-28 Unipanel Pty Ltd. Paper coated metal building panel and composite panels using same
EP1126096A3 (fr) * 2000-02-18 2001-10-24 Sergio Zambelli Armature de renforcement à adhérence améliorée, pour panneaux préfabriqués en béton
US6945002B2 (en) 2000-02-18 2005-09-20 Sergio Zambelli Reinforcement for prefabricated concrete panels with improved bonding to concrete
WO2002050383A1 (fr) * 2000-12-21 2002-06-27 Sam-Sin, Robert Structure porteuse plane transportable
WO2003006761A1 (fr) * 2001-07-10 2003-01-23 City Administration Limited Panneau de construction
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
EP1617003A3 (fr) * 2004-07-15 2007-01-10 KUKA Schweissanlagen GmbH Planchers modulaires pour unités de fabrication
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
CN102003007A (zh) * 2010-10-26 2011-04-06 吴方伯 一种带肋钢筋混凝土预制构件板
CN108166657A (zh) * 2017-12-26 2018-06-15 中国十七冶集团有限公司 一种冷弯薄壁z型钢和秸秆板材组合的钢木组合楼盖
WO2019234389A1 (fr) * 2018-06-04 2019-12-12 Pbp Berlani Holding Ltd Améliorations dans ou relatives à des structures de construction
GB2577153A (en) * 2018-06-04 2020-03-18 Pbp Berlani Holding Ltd Improvements in or relating to building structures
GB2577153B (en) * 2018-06-04 2022-09-21 Pbp Fast Track Building Tech Sarl Improvements in or relating to building structures
WO2020109871A1 (fr) * 2018-11-27 2020-06-04 Gibs Building Tech Pty Ltd Système de préfabrication de bâtiment, panneau mural préfabriqué et panneau de plancher préfabriqué associé
EP4292809A1 (fr) * 2022-06-17 2023-12-20 Sika Technology AG Panneaux comprenant une mousse inorganique durcie et un élément de renforcement structurel, leurs procédés de fabrication et leur utilisation
WO2023242275A1 (fr) * 2022-06-17 2023-12-21 Sika Technology Ag Panneaux comprenant une mousse inorganique durcie et un élément de renforcement structural, leurs procédés de fabrication et leur utilisation

Also Published As

Publication number Publication date
AU3152593A (en) 1993-07-19
TW252175B (fr) 1995-07-21

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