WO2000003104A1 - Passerelle modulable - Google Patents

Passerelle modulable Download PDF

Info

Publication number
WO2000003104A1
WO2000003104A1 PCT/IB1999/001236 IB9901236W WO0003104A1 WO 2000003104 A1 WO2000003104 A1 WO 2000003104A1 IB 9901236 W IB9901236 W IB 9901236W WO 0003104 A1 WO0003104 A1 WO 0003104A1
Authority
WO
WIPO (PCT)
Prior art keywords
load
members
grating system
bearing
bearing members
Prior art date
Application number
PCT/IB1999/001236
Other languages
English (en)
Inventor
Owen Lyell Livingston
Original Assignee
Owen Lyell Livingston
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 Owen Lyell Livingston filed Critical Owen Lyell Livingston
Priority to AU45276/99A priority Critical patent/AU4527699A/en
Publication of WO2000003104A1 publication Critical patent/WO2000003104A1/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
    • E04C2/42—Gratings; Grid-like panels
    • E04C2/421—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction
    • E04C2/422—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern
    • E04C2/423—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern with notches

Definitions

  • THIS INVENTION relates to a grating system. More particularly, the
  • invention relates to a modular grating system and to its method of manufacture.
  • a grating system which includes a plurality of elongate load-bearing members of a hollow construction, with
  • each member being reinforced for improved tensile and compressive load carrying abilities, the members being spaced from each other and arranged parallel to each other;
  • the connecting members may extend at substantially right angles to the load-bearing members.
  • Each load-bearing member may have a plurality of receiving formations defined therein for receiving portions of associated connecting members.
  • receiving formations may be in the form of longitudinally spaced, transversely extending slots defined in the load-bearing member, the slots being dimensioned such that the associated portion of each connecting member is a press-fit in its associated
  • Each load-bearing member when viewed in end profile, may be
  • each load-bearing member may be substantially U-shaped and may comprise a pair of spaced limbs interconnected by a bridging portion.
  • the load-bearing members may be arranged such that the bridging portion of each load-bearing member is at an upper end so that, when viewed in end profile, each load-bearing member has an inverted U-shape.
  • each load-bearing member may be carried on
  • each limb of the bar as well as on the bridging portion.
  • the reinforcing on each limb may be in the form of a foot portion carried along an operatively lower edge of each limb of the load-bearing member.
  • each load-bearing member may be in the form of a crown portion.
  • the crown portion may be a rib running along the length of the load-bearing member.
  • each load-bearing member may have a grip- enhancing finish.
  • the grip-enhancing finish may be in the form of a plurality of grooves which run longitudinally along each crown portion.
  • Each connecting member when viewed in end profile, may be
  • the slots in the load-bearing members may be correspondingly T-shaped.
  • Each connecting member may have a cap portion which is defined on the
  • the grip-enhancing finish may be provided by notches defined in the cap portion, the notches being
  • the grip-enhancing finish may be provided by longitudinal grooves defined in the cap
  • each connecting member may be a press fit in the slots of the load-bearing members. To facilitate retention of the connecting members
  • each connecting member held captive between the limbs of its associated load-bearing member
  • the grating system may also include an end formation in the form of an
  • Each end plate or banding member may be substantially channel shaped having a pair of spaced parallel members interconnected by a web, with the parallel members having engaging formations for engaging complementary formations in the 80 load-bearing members.
  • the engaging formations may be in the form of ribs extending
  • each member longitudinally along an operatively inner surface of each member with the complementary formations in the load-bearing members being in the form of receiving
  • slots arranged inwardly of each end of the load-bearing member, the slots being defined in the crown portion of each load-bearing member as well as in the foot portions of each load-bearing member.
  • the load-bearing members and the connecting members may be formed 90 of an aluminium material.
  • a method of manufacturing a grate for a grating system including the steps of 95 providing a plurality of elongate load-bearing members; arranging the load-bearing members in spaced parallel relationship;
  • the method may include forming receiving formations in the load-bearing members and press fitting the connecting members into the receiving formations in
  • the method may further include a first step of extruding the load-bearing members and the connecting members from an aluminium material.
  • the method may yet further include the step of deforming a portion of
  • each connecting member which is held captive between limbs of its associated load- bearing member, by bending the portion towards an end of the associated load- bearing member to facilitate retention of the connecting members in position relative to the load-bearing members.
  • the method as described above may be employed where smaller grates are formed, e.g. stair treads, drainage covers, or the like.
  • Figure 1 shows an exploded three dimensional view of a grating system, in accordance with the invention
  • Figure 2 shows a three dimensional view of another embodiment of a grating system, in accordance with the invention
  • Figure 3 shows a three dimensional view of a load-bearing member, forming part of the grating system of Figures 1 and 2;
  • Figure 4 shows a three dimensional view of another embodiment of a load- bearing member for use in the grating system
  • Figure 5 shows a sectional end view of yet a further embodiment of a load- bearing member
  • Figure 6 shows a three dimensional view of a connecting member used in the grating system of Figures 1 and 2
  • Figure 7 shows a three dimensional view of another embodiment of a connecting member for use in a grating system in accordance with the invention
  • Figure 8 shows a sectional end view of a banding member for use in the grating system of Figure 1 ;
  • Figure 9 shows a sectional end view of an end plate used in the grating system of Figure 2.
  • reference numeral 10 generally designates a grating system, in accordance with the invention.
  • the grating system 10 comprises
  • a banding member 1 6 is arranged along each side of the grating system 10.
  • the grating system 10 illustrated in Figure 1 of the drawing is intended for use as a non-slip grating, such as a walkway.
  • Figure 2 of the drawings a further embodiment of a grating system 10 is illustrated.
  • an end plate 1 8 is secured to each end of the grate 20 formed by the
  • 1 2 comprises a pair of spaced limbs 22 interconnected by a bridging portion 24.
  • U-bars 1 2 are extruded aluminium sections. To provide improved tensile strength, thickened foot portions 26 are arranged at free edges of each limb 22. To provide
  • a crown portion 28 is carried on the bridging portion 24.
  • a top 30 of the crown portion 28 has longitudinally extending grooves 32 defined therein to improve the non-slip characteristics of the grate 20.
  • the grooved crown portion 30 extends partially on to one of the limbs 22, which, in use, forms an outer member of the stair tread illustrated in Figure 2 of the
  • each T-bar 14 has a cross member 34 and a stem 36. !n the embodiment of the invention illustrated in Figure 6 of the drawings, a cap portion 38 is mounted on top of the cross member 34 and is notched as illustrated at 40 at longitudinally spaced intervals along the length of the T-bar 14 further to enhance the
  • the T-bars 14 are also extruded aluminium
  • the cross piece 34 is grooved as illustrated at 42, once again, to enhance the non-slip characteristics of a grate formed using this embodiment of the T-bar 14.
  • Each banding profile 1 6 is substantially channel-shaped and comprises an upper member 44 and a lower member 46 interconnected by a web
  • each member 44 and 46 carries a longitudinally
  • each banding profile 16 is replaced by the end plate 18
  • T-bars 14 are cut into the bridging portion 24 and crown portion 28 of the U-bars 1 2 at longitudinally spaced intervals along the length of the U-bars 1 2.
  • the T-bars 14 are
  • each T-bar 14 The portion of the stem 36 of each T-bar 14, between the limbs 22 of each U-bar 1 2, is bent towards one of the ends of each U-bar 1 2 further to inhibit movement of the T-bars 14 relative to the U-bars 12.
  • the U-bars 12 also being in an upside down orientation
  • the grate 20 of the grating system 10 can be formed in a single operation once the U-bars 1 2 and T-bars 14 have been cut to length and placed in the jig.
  • the need to place and advance the various components through a press is obviated. In so doing, the cost of producing such smaller grating system is further reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)

Abstract

Ce système de grille (10) comprend plusieurs éléments porteurs, de forme allongée, d'une structure creuse (12), et il est caractérisé en ce que des portions déterminées de chaque élément sont renforcées pour présenter des capacités porteuses améliorées quant à la résistance à la traction et à la compression, et en ce que ces éléments sont séparés les uns des autres et disposés parallèlement entre eux. Ce système comporte également plusieurs éléments de raccordement (14), de forme allongée, lesquels sont reliés aux éléments porteurs (12) et sont disposés transversalement par rapport à ces éléments porteurs (12), et parallèlement entre eux, de manière à former une grille. L'invention concerne également un procédé de fabrication d'un système de grille modulaire.
PCT/IB1999/001236 1998-07-10 1999-07-02 Passerelle modulable WO2000003104A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45276/99A AU4527699A (en) 1998-07-10 1999-07-02 Modular walkway

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA986149 1998-07-10
ZA98/6149 1998-07-10

Publications (1)

Publication Number Publication Date
WO2000003104A1 true WO2000003104A1 (fr) 2000-01-20

Family

ID=25587136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/001236 WO2000003104A1 (fr) 1998-07-10 1999-07-02 Passerelle modulable

Country Status (2)

Country Link
AU (1) AU4527699A (fr)
WO (1) WO2000003104A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141035A1 (fr) * 2006-06-08 2007-12-13 Mea Polymer Beton B.V. Couvercle de grille et procédé de fabrication de couvercles de grilles de tous types de classes de contrainte et de largeurs nominales
US8067567B2 (en) 2003-02-27 2011-11-29 Industry-Academic Cooperation Foundation, Yonsei University Modified tert promoter with enhanced tumor-specificity and strength and recombinant vector comprising the same
CN104533012A (zh) * 2014-12-17 2015-04-22 黄军海 一种可承重轻质板材及其制作方法、组合墙板和房屋
EP3102748A2 (fr) * 2014-02-04 2016-12-14 ACO Severin Ahlmann GmbH & Co. KG Grille de couverture
WO2020115210A1 (fr) * 2018-12-07 2020-06-11 ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft Structure porteuse et procédé de fabrication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1083938A (fr) * 1952-10-14 1955-01-13 Grille
EP0051445A2 (fr) * 1980-10-28 1982-05-12 Owen Lyell Livingston Caillebotis
US4968170A (en) * 1989-02-16 1990-11-06 Metalines, Inc. Trench grating and method of manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1083938A (fr) * 1952-10-14 1955-01-13 Grille
EP0051445A2 (fr) * 1980-10-28 1982-05-12 Owen Lyell Livingston Caillebotis
US4968170A (en) * 1989-02-16 1990-11-06 Metalines, Inc. Trench grating and method of manufacture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8067567B2 (en) 2003-02-27 2011-11-29 Industry-Academic Cooperation Foundation, Yonsei University Modified tert promoter with enhanced tumor-specificity and strength and recombinant vector comprising the same
WO2007141035A1 (fr) * 2006-06-08 2007-12-13 Mea Polymer Beton B.V. Couvercle de grille et procédé de fabrication de couvercles de grilles de tous types de classes de contrainte et de largeurs nominales
EP3102748A2 (fr) * 2014-02-04 2016-12-14 ACO Severin Ahlmann GmbH & Co. KG Grille de couverture
CN104533012A (zh) * 2014-12-17 2015-04-22 黄军海 一种可承重轻质板材及其制作方法、组合墙板和房屋
WO2020115210A1 (fr) * 2018-12-07 2020-06-11 ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft Structure porteuse et procédé de fabrication

Also Published As

Publication number Publication date
AU4527699A (en) 2000-02-01

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