EP1837451A2 - Balken - Google Patents

Balken Download PDF

Info

Publication number
EP1837451A2
EP1837451A2 EP07250686A EP07250686A EP1837451A2 EP 1837451 A2 EP1837451 A2 EP 1837451A2 EP 07250686 A EP07250686 A EP 07250686A EP 07250686 A EP07250686 A EP 07250686A EP 1837451 A2 EP1837451 A2 EP 1837451A2
Authority
EP
European Patent Office
Prior art keywords
joist
joists
flange
web
holes
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Withdrawn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
EP07250686A
Other languages
English (en)
French (fr)
Other versions
EP1837451A3 (de
Inventor
Paul Baron
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.)
Aldershot GNS Ltd
Original Assignee
Gang Nail Systems 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
Application filed by Gang Nail Systems Ltd filed Critical Gang Nail Systems Ltd
Publication of EP1837451A2 publication Critical patent/EP1837451A2/de
Publication of EP1837451A3 publication Critical patent/EP1837451A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/292—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being wood and metal
    • 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
    • E04B5/48—Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
    • 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
    • E04C3/291—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures with apertured web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0473—U- or C-shaped

Definitions

  • This invention relates to joists, a term intended to cover similar structural components such as beams, struts or ties.
  • a joist has a metal member providing a web and having an upper surface bonded by adhesive to an upper timber chord and a lower surface bonded by adhesive to a lower timber chord.
  • the adhesive may be a polyurethane adhesive suitable for bonding wood to steel.
  • a moisture curing polyurethane adhesive with a coverage of 400g/m 2 has been found to be particularly suitable.
  • the metal member has an upper flange projecting at 90° from an upper edge of the web, and a lower flange also projecting at 90° from the lower edge of the web, the upper surface then being provided by the upper surface of the upper flange and the lower surface being provided by the lower surface of the lower flange.
  • the upper surface may also comprise the vertical surface of a continuous lip projecting upwardly from the outer extremity of the upper flange and the lower surface may also comprise the vertical surface of a continuous lip projecting downwardly from the outer extremity of the lower flange. It will be appreciated that the upper and lower metal flanges, and the upper and lower lips when present, also contribute to the enhanced stiffness of the joist.
  • the upper chord is rectangular in cross-section, having a horizontal dimension corresponding to the horizontal dimension of the upper flange and the lower chord is similarly rectangular in cross-section having a horizontal dimension corresponding to the horizontal dimension of the lower flange.
  • the web, the upper flange, the lower flange, the upper lip and the lower lip are preferably formed by bending a single piece of metal, such as galvanised steel, into a substantially u-shaped cross-section, the flanges defining the end limbs of the u-shape.
  • a portion of the length of the web may have a series of holes for the passage of electrical cables, plumbing pipes or conduits, and these holes may be formed with lips to prevent such cables pipes or ducts snagging on the edges of the holes.
  • a portion of the length of the joist at one end thereof is preferably devoid of holes so that this length can form an edge of a stairwell, where holes in joists are not required.
  • a plurality of joists of differing lengths but each in accordance with the invention may be provided so that the user can select joists of appropriate length, trimming one or both ends as necessary.
  • a domestic building (such as a house of block of flats) has opposed side walls 1 and 2 spanned by conventional joists 3.
  • the joist ends are attached to the walls 1 and 2 either by conventional joist hangers or by the ends of the joists being built into the walls, in conventional fashion.
  • the building has a rectangular stairwell 4 to accommodate a staircase, the stairwell 4 having a length parallel to the wall 1 of 2400mm and width perpendicular to the wall 1 of 1000mm. It can be seen that over the length of the stairwell there are four joists 5 shorter in length than the normal length joists 3 spanning the walls 1 and 2.
  • the ends of these shorter joists 5 are connected (e.g. by conventional joist hangers) to a transverse joist 6 defining the stairwell edge parallel to the wall 1.
  • the ends of this transverse joist 6 are in turn connected (e.g. by conventional joist hangers) to the pair of respective joists 7 and 8 defining the ends of the stairwell space.
  • This pair of joists 7 and 8 must therefore be designed to withstand greater bending moments than the remaining joists, because part of the loading applied to the floor laid over the shorter joists 5 will be transmitted to the pair of joists 7 and 8 through the intermediary of the transverse joist 6.
  • a pair of conventional joists (like the joists 3) have sometimes been placed side by side and screwed together to form a composite joist to serve as each of the joists 7 and 8.
  • the invention provides a joist of special design to serve as each of the joists 7 and 8 and Figures 2 to 5 show one such joist 7.
  • the joist 7 comprises a galvanised steel channel member folded from 11 ⁇ 2mm sheet steel so as to have a central vertical web 10 with a height dimension of 218mm and two horizontal flanges 11 and 12 with a width dimension of 72mm from the extremities of which project two out-turned vertical lips 13 and 14 with a height dimension of 15mm.
  • a strip of timber 15 of rectangular section (72mm wide x 35mm deep) is attached by a polyurethane adhesive to the whole of the upper surface of the upper flange and also to the adjacent surface of the upturned lip 13.
  • the strip of timber 15 has a width corresponding to the width of the flange 11 and forms an upper chord of the joist.
  • a second and identical timber strip 16 of rectangular section (72mm wide x 35mm deep) is attached by the same adhesive to the whole of the lower surface of the lower flange 12 and also to the adjacent surface of the down-turned lip 14.
  • the timber strip 16 has a width corresponding to the width of the lower flange 12 and forms a lower chord of the joist.
  • the adhesive is sufficiently strong to bond the wood to the steel so that the shear forces on this interface are resisted, imparting substantial stiffness to the composite joist.
  • a series of six circular holes 18 of 80mm diameter are formed in the web 10, the holes 18 being at a regular spacing of 600mm, this distance also being the distance between an end of the joist (the right hand end in Figure 2) and the nearest hole 18.
  • the other end of the joist has a length 19 of 1200mm devoid of holes.
  • Each hole 18 has a lip 20 which is curved in section as best seen in Figure 5, the lip 20 projecting 10mm from the web 10 on the same side thereof as the upper and lower flanges 11,12.
  • the holes 18 allow for the passage through the joist of cables, pipes or ducting which can be passed through the holes 18 without the risk of snagging on the edges of the holes as a result of the provision of the lips 20.
  • the holes 18 are centred on the neutral axis of the joist so as to minimise loss of stiffness or resistance to bending.
  • the joist 7 spans the walls 1 and 2 in a position defining one end of the stairwell 4, as shown in Figure 1.
  • the ends of the joist 7 are supported on the walls 1 and 2 either by joist hangers or by the ends of the joists being built into the walls 1 and 2. In either event, the ends of the joist 7 can be trimmed on site, it being understood that the length 19 of the joist which is devoid of holes is positioned so as to define the edge of the stairwell space and that the flat side of the joist (the right-hand side in Figure 4) faces towards the stairwell 4.
  • joist lengths may vary from 3600mm to 5400mm in steps of 600mm, each joist having a length at one end devoid of holes and being trimmable at each end to suit the floor being constructed.

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)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Floor Finish (AREA)
  • Rod-Shaped Construction Members (AREA)
EP07250686A 2006-03-23 2007-02-20 Balken Withdrawn EP1837451A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0605819A GB2436335B (en) 2006-03-23 2006-03-23 Joists

Publications (2)

Publication Number Publication Date
EP1837451A2 true EP1837451A2 (de) 2007-09-26
EP1837451A3 EP1837451A3 (de) 2008-06-04

Family

ID=36384023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07250686A Withdrawn EP1837451A3 (de) 2006-03-23 2007-02-20 Balken

Country Status (3)

Country Link
EP (1) EP1837451A3 (de)
GB (1) GB2436335B (de)
ZA (1) ZA200701806B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020165362A1 (fr) * 2019-02-15 2020-08-20 Goahead Sprl Pièce de couplage et ensemble de constructions préfabriquées comportant la pièce de couplage
WO2020171756A1 (en) * 2019-02-18 2020-08-27 Patrick Johansson Building stud, wall structure comprising such a building stud and a method for forming a wall structure
SE543391C2 (sv) * 2019-02-18 2020-12-29 Atricon Ab Byggregel, väggkonstruktion innefattande en sådan byggregel samt förfarande för att bilda en väggkonstruktion
CN112770989A (zh) * 2018-09-18 2021-05-07 艾勒技术公司 混合式智能复合集装箱和操作该集装箱的方法
CN115667643A (zh) * 2020-06-01 2023-01-31 阿特瑞康股份公司 建筑立柱、包括该建筑立柱的墙壁结构和用于形成墙壁结构的方法
SE2230047A1 (en) * 2022-02-18 2023-08-19 Atricon Ab Building stud and related method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018204201A1 (de) * 2018-03-20 2019-09-26 Peri Gmbh Schalungsträger mit einem durch ein Innenfachwerk ausgesteiften Hohlprofilsteg als Gurtverbinder
AU2023473814A1 (en) * 2023-11-20 2025-09-25 Sekisui House, Ltd. Floor structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020166306A1 (en) 2001-05-09 2002-11-14 Stuart Wilson Structural beam

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034957A (en) * 1976-02-17 1977-07-12 Symons Corporation Concrete formwork including I-beam support
SE429667B (sv) * 1979-06-18 1983-09-19 Nielsen Hilmer R Byggelement samt prefabricerad sektion uppbyggd av dessa element
US4862667A (en) * 1987-09-18 1989-09-05 Melland Robert C Metal structural fastener/stiffener with integral prongs
AU650614B2 (en) * 1988-05-04 1994-06-30 Tecbeam Pty Ltd Composite building element
CA2077170A1 (en) * 1992-08-28 1994-03-01 Warren Eberschlag Lightweight metal construction framing components
CA2494821C (en) * 2002-08-05 2014-10-14 Jeffrey A. Anderson Metal framing member and method of manufacture
JP2006257853A (ja) * 2005-03-18 2006-09-28 Hokkaido 薄鋼板と木材の複合梁

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020166306A1 (en) 2001-05-09 2002-11-14 Stuart Wilson Structural beam

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112770989A (zh) * 2018-09-18 2021-05-07 艾勒技术公司 混合式智能复合集装箱和操作该集装箱的方法
CN112770989B (zh) * 2018-09-18 2022-10-28 艾勒技术公司 混合式智能复合集装箱和操作该集装箱的方法
BE1027053B1 (fr) * 2019-02-15 2020-09-14 Goahead Sprl Pièce de couplage et ensemble de constructions préfabriquées comportant la pièce de couplage
WO2020165362A1 (fr) * 2019-02-15 2020-08-20 Goahead Sprl Pièce de couplage et ensemble de constructions préfabriquées comportant la pièce de couplage
AU2020224564B2 (en) * 2019-02-18 2022-10-20 Atricon Ab Building stud, wall structure comprising such a building stud and a method for forming a wall structure
CN113646493A (zh) * 2019-02-18 2021-11-12 阿特瑞康股份公司 建筑壁骨、包括这种建筑壁骨的墙壁结构和用于形成墙壁结构的方法
SE543391C2 (sv) * 2019-02-18 2020-12-29 Atricon Ab Byggregel, väggkonstruktion innefattande en sådan byggregel samt förfarande för att bilda en väggkonstruktion
WO2020171756A1 (en) * 2019-02-18 2020-08-27 Patrick Johansson Building stud, wall structure comprising such a building stud and a method for forming a wall structure
US11814844B2 (en) 2019-02-18 2023-11-14 Atricon Ab Building stud, wall structure comprising such a building stud and a method for forming a wall structure
CN115667643A (zh) * 2020-06-01 2023-01-31 阿特瑞康股份公司 建筑立柱、包括该建筑立柱的墙壁结构和用于形成墙壁结构的方法
US12428835B2 (en) 2020-06-01 2025-09-30 Atricon Ab Building stud, wall structure comprising such a building stud and a method for forming a wall structure
SE2230047A1 (en) * 2022-02-18 2023-08-19 Atricon Ab Building stud and related method
WO2023158353A1 (en) * 2022-02-18 2023-08-24 Atricon Ab Foldable building stud from retracted storage position to an expanded mounting position, and related method therefor
SE545883C2 (en) * 2022-02-18 2024-03-05 Atricon Ab Building stud comprising flange members and an interconnecting web member and related method

Also Published As

Publication number Publication date
GB2436335B (en) 2008-08-06
ZA200701806B (en) 2010-05-26
GB2436335A (en) 2007-09-26
GB0605819D0 (en) 2006-05-03
EP1837451A3 (de) 2008-06-04

Similar Documents

Publication Publication Date Title
EP1837451A2 (de) Balken
CA2121965C (en) Composite structural steel wall reinforced with concrete and mold therefor
US20220213684A1 (en) Modular composite action panel and structural systems using same
US6571527B1 (en) Elongate structural member comprising a zigzag web and two chords wherein one chord comprises a channel with inwardly directed lips on the channel ends
CA2491194A1 (en) Floor system with steel joists having openings with edge reinforcements and method
US20140338282A1 (en) Modular joist brace bracket
US4361999A (en) Self-supporting transverse partition wall support
US20090120028A1 (en) Insulating panel and method for building and insulating walls and ceilings
US5544459A (en) Duct chase frame for joists
EP1443156A1 (de) Struktur aus Hauptprofilen und dazu quer liegende Hilfsprofile
US2945328A (en) Floor joist and assembly
EP0110849A1 (de) Eine Oberfläche bildende Platte
US2090632A (en) Wall support
GB2220217A (en) Ceilings
US20060000182A1 (en) Wall stud assembly for modular walls
GB2340141A (en) Cold rolled steel joist
EP2261434B1 (de) Dachsparren
WO2006052603A2 (en) Modular building system and componentry
AU2009100419A4 (en) Open web lateral load distributing joist assembly
GB2341400A (en) Mounting plasterboard panels
AU2008100096A4 (en) Concrete Beam for Composite Suspended Concrete Floor System
NO20092929A1 (no) Trehulldekket
EP3211148A1 (de) Bodenteil für einen isolationsboden
AU2018100227A4 (en) Improvements in Joists
WO2006077484A1 (en) Flooring system with concrete slabs supported by trusses

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20080910

17Q First examination report despatched

Effective date: 20081023

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110901