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EP1687106B1 - Poutrelles porteuses avec evidements et leur methode de fabrication - Google Patents

Poutrelles porteuses avec evidements et leur methode de fabrication Download PDF

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Publication number
EP1687106B1
EP1687106B1 EP04819722A EP04819722A EP1687106B1 EP 1687106 B1 EP1687106 B1 EP 1687106B1 EP 04819722 A EP04819722 A EP 04819722A EP 04819722 A EP04819722 A EP 04819722A EP 1687106 B1 EP1687106 B1 EP 1687106B1
Authority
EP
European Patent Office
Prior art keywords
cut
web
halves
beams
universal
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.)
Active
Application number
EP04819722A
Other languages
German (de)
English (en)
Other versions
EP1687106A1 (fr
Inventor
Andrew Holmes
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.)
ASD Westok Ltd
Original Assignee
Westok 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29764404&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1687106(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Westok Ltd filed Critical Westok Ltd
Publication of EP1687106A1 publication Critical patent/EP1687106A1/fr
Application granted granted Critical
Publication of EP1687106B1 publication Critical patent/EP1687106B1/fr
Anticipated expiration legal-status Critical
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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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/083—Honeycomb girders; Girders with apertured solid web
    • E04C3/086—Honeycomb girders; Girders with apertured solid web of the castellated type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
    • 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
    • E04C2003/0452—H- or I-shaped

Definitions

  • This invention relates to improvements in structural beams of the type having a web located between two flanges, in which the web is not continuous, but has apertures therein.
  • the invention seeks to provide a method of producing a cellular beam having a depth less than those produced in accordance with the above mentioned European patent publication number 0324206 .
  • a method of producing a structural beam with openings located in the web which comprises the steps of taking a universal beam, making a first cut generally longitudinally along the web thereof, making a second cut generally longitudinally along the web on a second path differing from the first path of the first cut, separating the cut halves of the beam, removing the material between the first and second cut, and welding the halves together, characterised in that:
  • the ability to be able to specify exactly the depth of the finished cellular beam is useful in a number of end uses. For example, in multi-storey office and car park construction, the floor depth is frequently dictated by client preference and planning constraints. To achieve a precise floor depth using the traditional cellular beam is often impractical. However, a beam produced in accordance with the invention can be made to the exact depth required with the maximum efficiency of steel useage.
  • the cut along the web can be such that any shape and position of openings can be obtained. This is not possible with the cellular beams hitherto produced, which must have regularly spaced openings along their entire length of constant shape and size.
  • the beam produced by the method of the invention differs from welded beams by the use of an extruded section beam as the starting point which produces a superior strength product and moreover can reduce steel wastage.
  • a cellular beam (10) has flanges (12,14) between which extends a web (16).
  • the beam (10) is produced from a universal beam (figure 1(b)), having a depth d which is two-thirds of the depth D of the finished beam (10) shown in figure 1(a).
  • the web (16) of the universal beam is cut along two continuous cutting lines (18,20) and the material (22,23) between the lines (18,20) is removed.
  • the two halves of the beam are separated and one is moved longitudinally relative to the other in order to juxtapose the rectilinear sections (24,26) which are welded together to produce the finished cellular beam (10) illustrated in figure 1(a).
  • the cuts (18,20) are spaced further apart from one another and define a ribbon (28) of material therebetween.
  • the beams are separated and moved longitudinally relative to one another and the adjacent rectilinear portions (24,26) welded together as before.
  • the thickness of the beam in accordance with the invention is less than the thickness D produced in accordance with the above mentioned European patent publication by the amount "x", the width of the narrowest portions of the ribbon (28). As “x" may be varied at will, the thickness of the finished beam may be specified precisely.
  • the ribbon (28) contains a great deal more material and, since the rectilinear portions (24,26) are already opposite one another, the two halves of the beam do not need to be moved longitudinally relative to one another before welding.
  • This produces a beam of thickness d - x i.e. less than the thickness of the original beam by the amount " x " in figure 3(b). That is, in this embodiment, the cellular beam produced is actually of less depth than the universal beam from which it is produced.
  • this construction of beam is preferable to producing a cellular beam from the smaller initial universal beam, either because such is not available or because the section thickness (of the web and/or flanges) of a smaller beam is not sufficient to meet the strength requirements needed.
  • the process of the invention allows cellular beams to be produced of high strength and of a thickness tailored to the end use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
  • Bridges Or Land Bridges (AREA)
  • Telephone Function (AREA)

Claims (9)

  1. Procédé de fabrication d'une poutre porteuse (10) comportant des ouvertures situées dans l'âme, qui comprend les étapes consistant à prendre une poutre universelle, réaliser une première découpe (18) généralement longitudinale le long de l'âme de celle-ci, réaliser une seconde découpe (20) généralement longitudinale le long de l'âme sur un second trajet différent du premier trajet de la première découpe, séparer les moitiés découpées de la poutre, enlever le matériau (28) entre la première et la seconde découpes, et souder les moitiés ensemble, caractérisé en ce que la première et la seconde découpes sont espacées l'une de l'autre, définissant de cette manière une largeur de matériau ou ruban entre elles.
  2. Procédé selon la revendication 1, dans lequel la largeur de matériau ou ruban est équivalente à la réduction de profondeur souhaitée de la poutre cellulaire finie (10).
  3. Procédé selon la revendication 1, dans lequel la profondeur de la poutre cellulaire finie (10) est inférieure à celle de la poutre universelle à partir de laquelle elle est produite.
  4. Procédé selon la revendication 1, 2 ou 3, dans lequel la découpe (18, 20) le long de l'âme peut être telle que n'importe quelle forme d'ouvertures peut être obtenue.
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel la découpe (18, 20) le long de l'âme peut être telle que n'importe quelle position des ouvertures peut être obtenue.
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel les poutres sont séparées et déplacées longitudinalement l'une par rapport à l'autre avant d'être soudées ensemble.
  7. Procédé selon l'une quelconque des revendications 1 à 5, dans lequel les deux moitiés de la poutre (10) ne sont pas déplacées longitudinalement l'une par rapport à l'autre avant le soudage.
  8. Procédé selon la revendication 1, dans lequel deux ou plusieurs poutres universelles sont découpées et séparées en moitiés et les moitiés provenant de poutres universelles différentes sont utilisées pour produire des poutres cellulaires asymétriques.
  9. Poutre porteuse (10) pouvant être obtenue au moyen de n'importe lequel des procédés des revendications 1 à 8.
EP04819722A 2003-11-28 2004-11-26 Poutrelles porteuses avec evidements et leur methode de fabrication Active EP1687106B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0327896A GB2408523A (en) 2003-11-28 2003-11-28 Producing a beam with openings in the web
PCT/GB2004/005016 WO2005053873A1 (fr) 2003-11-28 2004-11-26 Poutrelles porteuses avec evidements

Publications (2)

Publication Number Publication Date
EP1687106A1 EP1687106A1 (fr) 2006-08-09
EP1687106B1 true EP1687106B1 (fr) 2007-11-07

Family

ID=29764404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04819722A Active EP1687106B1 (fr) 2003-11-28 2004-11-26 Poutrelles porteuses avec evidements et leur methode de fabrication

Country Status (9)

Country Link
US (1) US20070272342A1 (fr)
EP (1) EP1687106B1 (fr)
AT (1) ATE377465T1 (fr)
AU (1) AU2004295163B2 (fr)
DE (1) DE602004009961T2 (fr)
GB (1) GB2408523A (fr)
NZ (1) NZ547369A (fr)
WO (1) WO2005053873A1 (fr)
ZA (1) ZA200604170B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0510975D0 (en) * 2005-05-31 2005-07-06 Westok Ltd Floor construction method and system
WO2008070709A2 (fr) * 2006-12-06 2008-06-12 Georgia-Pacific Wood Products Llc Poutre en i ayant des ouvertures formées à l'intérieur pour un accès mécanique
NL1038775C2 (nl) 2011-04-26 2012-10-29 Anne Pieter Driesum Composietvloer en ligger daarvoor.
RU2484214C1 (ru) * 2011-12-08 2013-06-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "ВЯТСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ" (ФГБОУ ВПО "ВятГУ") Способ изготовления облегченной арочной балки
GB201202273D0 (en) * 2012-02-09 2012-03-28 Modular Walling Systems Ltd Modular construction system
CN102587574A (zh) * 2012-02-29 2012-07-18 王全良 腹板梁及制备方法及由其构成的csi住宅用架空结构
US9021759B2 (en) * 2012-06-13 2015-05-05 Usg Interiors, Llc Serpentine insert for open web grid
CN103362250A (zh) * 2013-05-13 2013-10-23 谢合清 格构式薄钢板檩条
US9896844B2 (en) * 2015-07-16 2018-02-20 Les Chantiers De Chibougamau Ltée I-joists and method of fabrication thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB498281A (en) * 1937-08-27 1939-01-04 Geoffrey Murray Boyd Improvements in built-up structural members
US2277615A (en) * 1939-09-25 1942-03-24 Townsend Roy Chester Method of making structural beams
US3066394A (en) * 1958-02-05 1962-12-04 Litzka Franz Apparatus for the manufacture of deeply-webbed girders
US2990038A (en) * 1959-05-29 1961-06-27 Diamond Harry Structural beams
FR1322441A (fr) * 1962-04-06 1963-03-29 Procédé de découpage en dents de scie, des âmes de poutrelles métalliques et autres profilés, par poinçonnage et cisaillage
US4586646A (en) * 1985-06-10 1986-05-06 Howard Booher Beam fabricating device
EP0324206B1 (fr) * 1988-01-12 1993-04-21 Wescol Structures Limited Poutre évidée
SE503425C2 (sv) * 1993-10-12 1996-06-10 Volvo Ab Ändsektion av en rambalk

Also Published As

Publication number Publication date
NZ547369A (en) 2008-01-31
ZA200604170B (en) 2007-10-31
GB2408523A (en) 2005-06-01
US20070272342A1 (en) 2007-11-29
DE602004009961T2 (de) 2008-08-28
EP1687106A1 (fr) 2006-08-09
ATE377465T1 (de) 2007-11-15
WO2005053873A1 (fr) 2005-06-16
GB0327896D0 (en) 2004-01-07
DE602004009961D1 (de) 2007-12-20
AU2004295163A1 (en) 2005-06-16
AU2004295163B2 (en) 2010-02-18

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