EP1460195A1 - Verbundträger - Google Patents

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Publication number
EP1460195A1
EP1460195A1 EP04251509A EP04251509A EP1460195A1 EP 1460195 A1 EP1460195 A1 EP 1460195A1 EP 04251509 A EP04251509 A EP 04251509A EP 04251509 A EP04251509 A EP 04251509A EP 1460195 A1 EP1460195 A1 EP 1460195A1
Authority
EP
European Patent Office
Prior art keywords
web
flanges
core
plywood
wood
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Withdrawn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
EP04251509A
Other languages
English (en)
French (fr)
Inventor
Wynn Peter Holloway
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1460195A1 publication Critical patent/EP1460195A1/de
Withdrawn legal-status Critical Current

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    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • 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
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/14—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with substantially solid, i.e. unapertured, web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials

Definitions

  • This invention relates to composite beams and especially to beams for construction of walls, floors, ceilings and roofing panels in particular for use in buildings.
  • the present invention relates to building construction and in particular to the construction of dwellings formed from spaced apart inner and outer walls in which the inner wall provides a load bearing structure which support the upper floors and roof structure etc., and the outer wall is formed of a weather resistant material e.g brickwork, timber cladding etc.
  • a known construction of building is the Canadian timber frame house.
  • the present invention relates to composite beams which can be particularly, but not exclusively, used in the construction of the above buildings.
  • the present invention may be utilised in building panels disclosed in applicant's co-pending patent application GB-A-2391 027.
  • a wooden Composite beam having a central cavity surrounded by walls and filled with a core of corrugated paper or cardboard, the core being adhered to the walls surrounding the cavity.
  • the beam is an I beam comprising upper and lower plywood flanges interconnected by a web comprising a pair of widely spaced apart planar side walls formed from wood or wood derivative material, the cavity being formed within the web.
  • the flanges are made from plywood having a suitable thickness and width depending upon the size of the beam, for example a 100mm deep X 75mm wide( 4" x 3"), 150mm deep X 70mm wide(6" x 23 ⁇ 4)") or 160mm deep X 100mm wide(6.5" x 4") beam may use plywood about 6mm in thickness. Deeper beams for use with longer spans may use thicker plywood.
  • the 6mm ply may comprise at least three plies and preferably 5 plies.
  • the mutually perpendicular adjacent plies produce an extremely rigid material in directions within the plane of the wood.
  • the side walls may be made from hardboard, plywood, or cardboard, preferably between 2-5mm in thickness.
  • the core comprises a plurality of layers of corrugated paper or corrugated cardboard which are each coated in a suitable adhesive resin and laminated together.
  • the adhesive subsequently cures or dries after assembly of the core.
  • the corrugations may run between the flanges or substantially parallel thereto, and in the preferred arrangement the corrugations in adjacent layers are normal to each other.
  • the corrugations in one layer may be smaller in dimensions than the corrugations in an adjacent layer.
  • Suitable adhesive resins may be selected from any suitable liquid glue which dries or cures to a water resistant form, such glues include polymeric resins e.g. an epoxy resin, a polyester resin, acrylate resins, water based PVA(polyvinylacetate), and two part phenolic based resins.
  • the width of the flanges on each side extend beyond the supporting web by about 1/3 of their total width.
  • Composite beams according to the present invention are structurally very rigid and don not bend under their own weight having an extremely high bending moment per unit mass.
  • a typical 75mm X 75mm I beam weighs about 400-500 gms/metre length.
  • I Beams of the above type may be used in the construction of building panels having a rectangular frame having the two faces covered in board material, the frame comprising top and bottom rails, preferably formed from "U” or “H” section water resistant composite, with the two rails being joined together by a plurality of spaced apart wood composite "I" beams extending therebetween.
  • board includes various boards derived from timber including hardboard, cardboard,plywood, plaster board, OSB ( oriented strand board.
  • Such a panel may form a modular load bearing panel which can be used for the construction of an inner wall, floor, ceiling or roof of a building.
  • adjacent wall panels are linked together by posts having side portions which are engagable within the recessed sides of the I beams.
  • the posts are a slide fit within the recessed sides of the I beams between the flanges on the respective I-beams, as is described in GB 2391 027.
  • the posts are hollow having plywood sidewalls and a central cavity filled with corrugated paper or cardboard.
  • the posts may be fixed to the panels by means of shouldered dowels secured to the web of a respective I-beam engaging in clips secured on the post, preferably within the hollow post.
  • an I beam 10 which is a composite beam having plywood flanges 11,12 linked by a composite central web 13 so that recesses 30 are formed either side of the web 13.
  • the overall depth D and width W of the beam 10 will be determined by the end use of the beam and material used for its construction.
  • the present Examples shown in Figs 1-5 relate to 162mm x 100mm beam but it will be understood that other I beams, for example, 100mm X 75mm or 150mm x 70mm can be made in accordance with the invention.
  • the flanges 11,12 are formed from plywood having a thickness of about 6.0mm with the grain of the outer veneers extending longitudinally of the beam 10.
  • the flanges 11,12 have awidth W of about 100 mm and have a central groove 16 on their inner surface to accommodate the web 13.
  • the groove has a width to suit the particular web, in this case 38mm and a depth of about 3.0mm.
  • the web 13 is composite structure comprising two spaced apart sidewalls 25,26 with a light weight cellular material core 17 filling the cavity therebetween.
  • the two side walls 25,26 may be formed from one of plywood, hardboard, or card board and preferably have thickness of between 2-6mm depending upon the material chosen, in this case 3mm plywood.
  • the core 17 filling the cavity comprises corrugated paper or cardboard, preferably comprising a plurality of layers thereof laminated together.
  • the corrugations may run between the flanges 11,12 or substantially parallel thereto, and in the preferred arrangement the corrugations in adjacent layers are normal to each other.
  • the corrugations in pairs of adjacent layers may be arranged so that the corrugations in one layer are smaller than the corrugations in the other layer with the corrugations extending in the same direction.
  • the core is made from sheets of corrugated paper which are each coated in an adhesive, preferably PVA and laminated together, the resin then being dried and cured.
  • the core is then cut from the dried/cured resin impregnated laminate.
  • the sidewalls 25,26 are then laminated with the core using a suitable water resistant adhesive, which again may be PVA, to form the web.
  • the web is then adhered to the flanges 11 & 12 also using a suitable water resistant adhesive, for example a two part phenolic resin adhesive available from Borden Chemicals, with the web being secured in the opposed grooves 16 in the flanges.
  • the two flanges extend beyond the web 13 on each side thereof by about 1/3 of their total width, in this example 21mm.
  • Composite beams according to the present invention are structurally very rigid and do not bend under their own weight. Bending tests were carried out on 150mm X 70mm beam having 5.5 mm plywood flanges 11,12, with a web 13 comprising two 4.5mm plywood sidewalls 25,26 with a 15mm corrugated paper core 17 with the corrugations extending between the flanges. The tests were carried out using the method specified in EN 408:1995E but using limited samples.
  • a second embodiment 41 of the I beam is shown in Figs. 4 & 5.
  • the I beam 41 is substantially similar
  • the dowels 31 may each be attached to a support plate 32 which bears on the opposite sidewall 26.
  • a plurality of such dowels 31 are spaced along the side wall 25 and are used for assembly of adjacent panels as will be described later.
  • a wall panel 110 which is a module for building the internal load bearing wall of a dwelling or other building.
  • the panel 110 has predetermined standard dimensions for matching with and assembly to other modular panels, for example width W of 1200mm, thickness T of 150mm, and height H of 2400mm.
  • Other panels according the present invention may have difference to at least some of the above dimensions.
  • Each panel 110 has a rectangular frame 111, having top and bottom rails 112,113 interconnected by a plurality of I Beams 41 & 10 which form the sides and vertical struts of the frame 111 and are spaced at predetermined distances apart across the width of the panel.
  • a preferred spacing between I beams 41 & 10 is 400mm.
  • the frame 111 is covered on one face, which is use faces externally of the building, with water resistant board 116 and its other face which in use faces inwardly of the building with a second board 117.
  • the externally facing board 16 is preferably 8-9mm plywood or OSB and the internally facing board is a laminated board which may comprise plywood, plasterboard, fibre board, calcium board, or magnesium oxide board laminated with a layer of melamine on its exposed surface.
  • the laminated layer may be provided with a finished decorative surface or may be suitable for painting or wall papering.
  • the internal and external boards 17 & 16 respectively are bonded to the beams 14.
  • the top rail 112 comprise a "H" shaped section channel formed from water resistant wood composite, preferably 12mm plywood and the bottom rail 113 is a substantially "U” section rail.
  • the H shaped rail 112 has open sided recesses 43 which face both inwardly and outwardly of the frame 111.
  • the inwardly facing recess 43 received stepped end portions of the I beams 41, 10 and the outwardly facing recess receives a strip 102 used for fixing panels 110 to an upper panel during construction.
  • the bottom rail 113 is orientated with its recess downwards and the wall panel 110 is mounted to a floor or base by use of a sole plate 101.
  • the sole plate 101 has a height or thickness slightly in excess of the depth of the recess 43 in the bottom rail.
  • the recess within the bottom rail 113 of each panel can be slidably located over the sole plate 101 which has previously been secured to the floor. Nails or other fixings can then be used to secure the panel to the floor strip.
  • a fire test according to BS 476:20:1987 was conducted on a building panel with composite I beams according to the invention, OSB on one face and Magnesium oxide board on the other face.
  • the OSB unexposed face remained unaffected during the test.
  • the beams 41 are arranged with the dowels projecting outwardly of the panels 110 and adjacent panels 110 may be linked together using a jointing post (not shown but described in detail in GB-A-2391 027.
  • the pointing posts located within the recesses 30 on the beams 41 and engage with the dowels 31.
  • Each dowel 31 has a groove 44 which provides an undercut shoulder which co-operates clips on the jointing post on assembly.
  • wall panels 10 may be placed on top of previously assembled walls up to three stories in height.
  • a jointing strip 102 is utilised between panels.
  • the vertical joints between the panels in one layer may be offset relative to the vertical joints in another layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Panels For Use In Building Construction (AREA)
  • Floor Finish (AREA)
EP04251509A 2003-03-20 2004-03-17 Verbundträger Withdrawn EP1460195A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0306408 2003-03-20
GBGB0306408.6A GB0306408D0 (en) 2003-03-20 2003-03-20 A composite beam

Publications (1)

Publication Number Publication Date
EP1460195A1 true EP1460195A1 (de) 2004-09-22

Family

ID=9955165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04251509A Withdrawn EP1460195A1 (de) 2003-03-20 2004-03-17 Verbundträger

Country Status (4)

Country Link
US (1) US20040226255A1 (de)
EP (1) EP1460195A1 (de)
CA (1) CA2460868A1 (de)
GB (2) GB0306408D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108612258A (zh) * 2018-05-21 2018-10-02 同济大学 轴向肋波纹腹板钢-混凝土组合连梁

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE486183T1 (de) * 2005-09-13 2010-11-15 Airbus Operations Sl Verbundträger mit einem gewickelten steg
US20110155315A1 (en) * 2009-12-24 2011-06-30 Ali'i Pacific LLC Preservative-treated i-joist and components thereof
US8910455B2 (en) * 2010-03-19 2014-12-16 Weihong Yang Composite I-beam member
GB201007336D0 (en) 2010-04-30 2010-06-16 Blade Dynamics Ltd A modular structural composite beam
GB201215004D0 (en) 2012-08-23 2012-10-10 Blade Dynamics Ltd Wind turbine tower
GB201217210D0 (en) 2012-09-26 2012-11-07 Blade Dynamics Ltd A metod of forming a structural connection between a spar cap fairing for a wind turbine blade
GB201217212D0 (en) 2012-09-26 2012-11-07 Blade Dynamics Ltd Windturbine blade
US20140134394A1 (en) * 2012-11-13 2014-05-15 Noble Environmental Technologies Corporation Void containing structural member
US20140245696A1 (en) * 2013-03-04 2014-09-04 Boise Cascade Company Fire resistant construction members

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH490187A (de) * 1969-08-08 1970-05-15 Model Ag Aus geschichtetem Material bestehendes Plattengebilde
US4191000A (en) * 1978-02-27 1980-03-04 Timjoist, Inc. Wooden I-beam
DE3017332A1 (de) * 1980-05-06 1981-11-12 Masonite AB, Rundviksverken Bauelement, insbesondere dachbauelement
GB2235235A (en) * 1989-08-17 1991-02-27 Dufaylite Dev Ltd Forming structures in ground
FR2702415A1 (fr) * 1993-03-11 1994-09-16 Elinas Production Alain Panneau décoratif du type composite à âme en carton ondulé.
US5958171A (en) * 1993-05-24 1999-09-28 North American Container Corporation Method of making a structural member
EP0957214A1 (de) * 1998-05-13 1999-11-17 Curtis 1000 Europe Gmbh Bauplatte
GB2391027A (en) * 2002-07-18 2004-01-28 Wynn Peter Holloway Modular building panels with composite I beams

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US1768833A (en) * 1925-05-15 1930-07-01 James H Edwards Structural member
US1955833A (en) * 1931-06-17 1934-04-24 Aerolite Company Inc Building material
US2118048A (en) * 1937-03-29 1938-05-24 Timber Engineering Co Laminated structure
GB825399A (en) * 1957-06-20 1959-12-16 Eric Sigfrid Persson Wooden beam
US3487518A (en) * 1965-08-12 1970-01-06 Henry Hopfeld Method for making a reinforced structural member
US3634990A (en) * 1970-03-13 1972-01-18 Thomas F Pugh Double wall interlocking panel construction
US4333289A (en) * 1980-02-29 1982-06-08 Strickland Systems, Inc. Concrete form support structure
US4413459A (en) * 1981-03-16 1983-11-08 Boise Cascade Corporation Laminated wooden structural assembly
US4580380A (en) * 1983-11-07 1986-04-08 Ballard Derryl R Composite filled interior structural box beams
US4967534A (en) * 1985-08-09 1990-11-06 Mitek Holding, Inc. Wood I-beams and methods of making same
US4896469A (en) * 1987-08-19 1990-01-30 Wright John T Prefabricated building panel assembly
CN1068544C (zh) * 1993-05-24 2001-07-18 北美容器公司 结构部件及其制作方法
GB2281321A (en) * 1993-08-25 1995-03-01 Dale Mccrea Production of structural elements
US5653080A (en) * 1995-10-24 1997-08-05 Bergeron; Ronald Fabricated wooden beam with multiple web members
US5848513A (en) * 1996-02-07 1998-12-15 International Building Concepts, Ltd. Building jig and box beam therefor
US5930968A (en) * 1997-12-24 1999-08-03 Pullam; Billy D. Interlocking stubs
DE19960304A1 (de) * 1999-12-14 2001-06-21 Wilkhahn Wilkening & Hahne Leichtbauplatte
US6460309B1 (en) * 2000-01-20 2002-10-08 Dale Schneider Beam roofing system and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH490187A (de) * 1969-08-08 1970-05-15 Model Ag Aus geschichtetem Material bestehendes Plattengebilde
US4191000A (en) * 1978-02-27 1980-03-04 Timjoist, Inc. Wooden I-beam
DE3017332A1 (de) * 1980-05-06 1981-11-12 Masonite AB, Rundviksverken Bauelement, insbesondere dachbauelement
GB2235235A (en) * 1989-08-17 1991-02-27 Dufaylite Dev Ltd Forming structures in ground
FR2702415A1 (fr) * 1993-03-11 1994-09-16 Elinas Production Alain Panneau décoratif du type composite à âme en carton ondulé.
US5958171A (en) * 1993-05-24 1999-09-28 North American Container Corporation Method of making a structural member
EP0957214A1 (de) * 1998-05-13 1999-11-17 Curtis 1000 Europe Gmbh Bauplatte
GB2391027A (en) * 2002-07-18 2004-01-28 Wynn Peter Holloway Modular building panels with composite I beams

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108612258A (zh) * 2018-05-21 2018-10-02 同济大学 轴向肋波纹腹板钢-混凝土组合连梁

Also Published As

Publication number Publication date
US20040226255A1 (en) 2004-11-18
GB0405929D0 (en) 2004-04-21
GB0306408D0 (en) 2003-04-23
GB2399577B (en) 2006-05-10
CA2460868A1 (en) 2004-09-20
GB2399577A (en) 2004-09-22

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