EP1522742A1 - Noeud pour les barres se reliantes des constructions-cadres spatiales - Google Patents

Noeud pour les barres se reliantes des constructions-cadres spatiales Download PDF

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Publication number
EP1522742A1
EP1522742A1 EP03380250A EP03380250A EP1522742A1 EP 1522742 A1 EP1522742 A1 EP 1522742A1 EP 03380250 A EP03380250 A EP 03380250A EP 03380250 A EP03380250 A EP 03380250A EP 1522742 A1 EP1522742 A1 EP 1522742A1
Authority
EP
European Patent Office
Prior art keywords
bars
node
node according
plate
plates
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Withdrawn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
EP03380250A
Other languages
German (de)
English (en)
Inventor
José Antonio Hevia Corte
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.)
Ideas en Metal SA
Original Assignee
Ideas en Metal SA
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 Ideas en Metal SA filed Critical Ideas en Metal SA
Publication of EP1522742A1 publication Critical patent/EP1522742A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E04B2001/1918—Connecting nodes specially adapted therefor with connecting nodes having flat radial connecting surfaces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
    • E04B2001/193—Struts specially adapted therefor of essentially circular cross section with flattened connecting parts, e.g. ends
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/1963—Screw connections with axis at an angle, e.g. perpendicular, to the main axis of the strut

Definitions

  • the present invention refers to a node for connecting bars of space or tridimensional frames, especially applicable to frames based on tubular bars of a metallic nature.
  • Space or tridimensional frames are constituted on the basis of bars, generally of steel and having a tubular structure, although solid sections, and other materials also, such as aluminum, wood, reinforced plastics, and the like, have been occasionally used.
  • connection systems of these bars can generally be divided into three large blocks: those which use an auxiliary element called a node at which the different bars of the frame concur, those which are built from continuous longitudinal chords or units subsequently connected to one another on site, and those which are carried out by assembling on site premanufactured, standard modules.
  • the node that the present invention refers to would be part of the first system mentioned.
  • the parts forming the node due to their function, require special constitutive features, and they may become one of the components having the greatest influence on the final cost of the frame.
  • the object of the present invention is a node for the purpose set forth, which is constituted from flat plates, of a simple and cost-effective manufacture, such that it allows considerably reducing costs and weights of this component.
  • the node is constituted of three flat plates which cross perpendicular to one another and determine right trihedrons. Said plates are provided with holes allowing the passing of lockscrews for fixing the bars concurring at the node.
  • the node is formed from steel plates of suitable dimensions, which simply require a cutting and drilling operation to form the through holes of the lockscrews.
  • the ends of the bars concurring at the node must also be machined, being able to adopt very different shapes, by means of welding, adding a fork-shaped plate, by means of crushing the end portions of said bars, or through a hub or bushing, being provided, in any case, with a hole for the passing of the lockscrew.
  • the plates can adopt a ring or semi-ring shape, being lightened in the central part thereof, thus reducing the weight of the node.
  • Each one of the plates forming the complete node can either be constituted of a single part or obtained from several parts assembled together.
  • the node shown in figure 1 is composed of three octagonal, polygonal, ring-shaped plates referenced with numbers 1, 2 and 3. All the plates are perpendicular to one another, such that the theoretical center thereof is common, such that eight trihedrons are determined.
  • the plates have through holes 4 which allow carrying out connections by means of screws 5 introduced through the end parts 6 of the tubular bars 7 composing the space frame.
  • One of the advantages provided by the node of the invention is that it prevents the occurrence of secondary bending moments which can be originated in the embedment of the ends of the bars 7 into the node.
  • Another feature of the design of the invention is that the screwed connection of the node with the tubular profiles 7 is carried out in a radius relatively distant from the theoretical center of the node or connection. This facilitates the on site assembly and implies an important saving in the length of the tubes, which compensate the manufacturing cost of the node.
  • the node shown in figure 2 is similar to the node shown in figure 1, but lighter, since areas in which bars neither fall nor concur are removed.
  • the plate or ring 3 is completed, whereas those referenced with numbers 1 and 2 are semi-plates or semi-rings, with regard to the configuration shown in figure 1.
  • the embodiment of the node shown in figure 2 has the same features and elements already disclosed with regard to that shown in figure 1 for receiving the ends of the bars.
  • the different parts composing the node can be obtained by means of cutting a plate with the suitable thickness. Since assembly of the node can be a complicated operation, the plates or rings composing it can be broken down into the simplest and most similar possible elements, as shown in figure 3, to obtain the node of figure 1.
  • the plate or ring 1 is of a single part
  • the plate or ring 2 is constituted of four parts, two larger parts equal to one another, referenced with number 2, and two parts smaller and also equal to one another, referenced with number 2'
  • the plate 3 is constituted of two parts 3-3'.
  • the different parts are provided with facing notches 8 for allowing a perfect coupling between them, the connection between the different parts being carried out later by means of welding beads.
  • the ends of the bars can be finished in forks 9, the branches of which clamp to one of the plates of the node and are provided with respective aligned holes 10 facing one of the holes 4 of the plates for the passing of a lockscrew 5.
  • the ends of the tubular bars 7 can also be finished with tabs 4. These tabs can be obtained either by means of crushing the end of the tubular bar 7, as referenced with number 11 in figure 4, or by a plate 12 axially fixed in a position diametral to a cylindrical hub or bushing 13 fixable to the end of the tubular bar 7.
  • This plate can have a T-shape configuration, as indicated with reference 14, resting on and being connected by welding to the end of the tubular bar 7 through the flaps 15.
  • holes 16 will be provided, which will face the corresponding holes in the plates or rings, for the passing of the lockscrews 5.
  • the plate 12 or 14 could be fixed directly to the end of the tubular bars 7.
  • the operations to be carried out for assembling the node and adding the additional elements for connection to the ends of the tubular bars 5 can be carried out in a shop, with the advantages that this implies, such as decreasing on site assembly costs and times with regard to shop assembly, independence from climatological conditions, dimensional control, improvement of the quality of the weldings and the superficial protection through a layer of paint or galvanizing, etc.
  • node of the invention is especially intended for being used with frames of steel tubular bars having a circular section, they could also be applied with bars of other types and profiles of other shapes.
  • the ring-shaped configuration of the plates composing the node allows reducing the weight thereof, these rings being able to have a circular, elliptical, polygonal, etc., contour.
EP03380250A 2003-10-08 2003-10-29 Noeud pour les barres se reliantes des constructions-cadres spatiales Withdrawn EP1522742A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200302272U 2003-10-08
ES200302272U ES1055767U (es) 2003-10-08 2003-10-08 Nudo para union de barras de estructuras espaciales.

Publications (1)

Publication Number Publication Date
EP1522742A1 true EP1522742A1 (fr) 2005-04-13

Family

ID=30470796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03380250A Withdrawn EP1522742A1 (fr) 2003-10-08 2003-10-29 Noeud pour les barres se reliantes des constructions-cadres spatiales

Country Status (2)

Country Link
EP (1) EP1522742A1 (fr)
ES (1) ES1055767U (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009053367A1 (fr) * 2007-10-22 2009-04-30 Gpl-Costruzioni Generali S.R.L. Structure de treillis spatial
EP2318620A1 (fr) * 2008-07-09 2011-05-11 Skyfuel, Inc. Connecteur de structure spatiale
WO2013079078A1 (fr) * 2011-11-29 2013-06-06 Elfawal Mohamed Fawzy Treillis spatial à nœuds à broches (pnst)
US9291185B2 (en) 2010-10-21 2016-03-22 Europea De Construcciones Metalicas, S.A. Direct connection between a tube and a flat element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579060A (fr) * 1968-06-21 1969-08-22
US4065220A (en) * 1976-07-16 1977-12-27 Wayne Ruga Structural system connection
DE3123482A1 (de) * 1981-06-13 1982-12-30 Josef 7100 Heilbronn Serwe Knotenverbindung fuer ein raumtragwerk
US4406562A (en) * 1980-01-23 1983-09-27 Establissements Ernest Pantz Paris Assembly node for a spatial structure and spatial structure equipped with such a node

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579060A (fr) * 1968-06-21 1969-08-22
US4065220A (en) * 1976-07-16 1977-12-27 Wayne Ruga Structural system connection
US4406562A (en) * 1980-01-23 1983-09-27 Establissements Ernest Pantz Paris Assembly node for a spatial structure and spatial structure equipped with such a node
DE3123482A1 (de) * 1981-06-13 1982-12-30 Josef 7100 Heilbronn Serwe Knotenverbindung fuer ein raumtragwerk

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009053367A1 (fr) * 2007-10-22 2009-04-30 Gpl-Costruzioni Generali S.R.L. Structure de treillis spatial
EP2318620A1 (fr) * 2008-07-09 2011-05-11 Skyfuel, Inc. Connecteur de structure spatiale
EP2318620A4 (fr) * 2008-07-09 2014-02-12 Skyfuel Inc Connecteur de structure spatiale
US8739492B2 (en) 2008-07-09 2014-06-03 Skyfuel, Inc. Space frame connector
US9291185B2 (en) 2010-10-21 2016-03-22 Europea De Construcciones Metalicas, S.A. Direct connection between a tube and a flat element
WO2013079078A1 (fr) * 2011-11-29 2013-06-06 Elfawal Mohamed Fawzy Treillis spatial à nœuds à broches (pnst)

Also Published As

Publication number Publication date
ES1055767U (es) 2004-01-16

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