BE895191A - Lightweight trellis-type space frame - has flattened bar connections between main frame bars and braces retained by bolts - Google Patents

Lightweight trellis-type space frame - has flattened bar connections between main frame bars and braces retained by bolts Download PDF

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Publication number
BE895191A
BE895191A BE0/209607A BE209607A BE895191A BE 895191 A BE895191 A BE 895191A BE 0/209607 A BE0/209607 A BE 0/209607A BE 209607 A BE209607 A BE 209607A BE 895191 A BE895191 A BE 895191A
Authority
BE
Belgium
Prior art keywords
bars
flats
bolts
flat
frame
Prior art date
Application number
BE0/209607A
Other languages
French (fr)
Original Assignee
Utema Travhydro S A
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 Utema Travhydro S A filed Critical Utema Travhydro S A
Priority to BE0/209607A priority Critical patent/BE895191A/en
Publication of BE895191A publication Critical patent/BE895191A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B1/1903Connecting nodes specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B2001/1924Struts specially adapted therefor
    • E04B2001/1927Struts specially adapted therefor of essentially circular cross section
    • E04B2001/193Struts specially adapted therefor of essentially circular cross section with flattened connecting parts, e.g. ends
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B2001/1957Details of connections between nodes and struts
    • E04B2001/1963Screw connections with axis at an angle, e.g. perpendicular, to the main axis of the strut
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B2001/1975Frameworks where the struts are directly connected to each other, i.e. without interposed connecting nodes or plates
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B2001/1981Three-dimensional framework structures characterised by the grid type of the outer planes of the framework
    • E04B2001/1984Three-dimensional framework structures characterised by the grid type of the outer planes of the framework rectangular, e.g. square, grid

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The frame has a top and a bottom layer of cross bars (1,2) with some diagonal bars (3) connecting the layers of bottom and top bars. The main bars have some flat parts (11,21) spaced at regular intervals along them, while the diagonal bars have some flats (31) at their ends bent according to a chosen angle. At the connecting nodes (4) of the frame, a flat (11) of the first bar (1), a flat (21) of the second bar (2) and four flats (31) of the diagonal bars come together and are held by four bolts (5), one for each diagonal bar.

Description

       

  Charpente spatiale légère en treillis Charpente spatiale légère en treillis.

  
La présente invention concerne une charpente spatiale en treillis comprenant deux nappes horizontales de barres croisées,reliées entre elles par des diagonales.

  
L'invention a pour but de permettre une grande souplesse et une grande rationalisation d'assemblage à partir d'éléments normalisés tout en assurant de parfaites propriétés de résistance statique et dynamique aux noeuds de liaison.

  
Ce but est atteint grâce à la charpente selon l'invention dans laquelle les barres des nappes supérieure et inférieure sont formées avec des méplats à intervalles réguliers, eh ce que les diagonales ont leurs extrémités formées avec des méplats pliés suivant un angle déterminé et en ce que les noeuds de liaison entre les barres des nappes supérieure et inférieure et les diagonales sont constitués chacun d'un méplat d'une première barre,.d'un méplat d'une seconde barre s'étendant dans une direction transversale à celle de la première barre, et de quatre méplats de diagonales, l'ensemble étant liaisonné au moyen de quatre boulons, un pour chaque diagonale.

   Dans une variante d exécution, le méplat d'une barre dans un noeud comprend deux méplats d'extrémité juxtaposés, chaque méplat d'extrémité appartenant à un tronçon de barre distinct,deux méplats de diagonales étant fixés à l'aplomb de chacun desdits méplats d'extrémité. 

  
L'invention est exposée en détail dans ce qui suit avec référence aux dessins ci-annexés sur lesquels:
la figure 1 est une vue schématique générale d'une partie d'une charpente spatiale selon l'invention;

  
les figures 2 et 3 illustrent, respectivement en

  
coupe et en plan , un premier mode d'exécution d'un

  
noeud de liaison dans la charpente de la figure 1;

  
les figures 4 et 5 illustrent, respectivement en coupe

  
et en plan, un deuxième mode d'exécution d'un noeud

  
de liaison dans la charpente.de la figure 1.

  
Se reportant à la figure 1, la charpente illustrée

  
comprend deux nappes horizontales constituées chacune de barres croisées 1 et 2, les deux nappes étant réunies par des diagonales 3. Les barres 1 et 2 sont par exemple des profilés métalliques creux de section carrée ou rectangulaire. Aux endroits de croisement, les barres sont formées avec des méplats,11 et 21 respectivement. Les diagonales 3 sont constituées par exemple de tubes métalliques ayant leurs extrémités formées avec des méplats 31 pliés suivant l'angle voulu et liaisonnés aux nappes supérieure et inférieure à des croisures des barres 1 et 2 de ces nappes.

  
Les barres 1 et 2 peuvent être d'une pièce s'étendant sur la portée entière de la charpente ou être constituées de plusieurs tronçons de longueurs déterminées. L'angulation des diagonales 3 est évidemment fonction du pas du treillis et de la distance entre les nappes supérieure et inférieure.

  
Les noeuds de liaison 4 entre les diagonales 3 et les nappes de barres supérieure et inférieure sont constitués comme montré par exemple aux figures 2 et 3. Le noeud 4 illustré est constitué par la superposition d'un méplat d'une barre 1, d'un méplat 21 d'une barre 2 et de quatre méplats de diagonales 31,1'ensemble du noeud étant liaisonné au moyen de quatre boulons 5,un boulon pour chaque diagonale 3. 

  
L'assemblage de la charpente telle que décrite ci-dessus est très souple: la réalisation des noeuds 4 sur le chantier est facile à exécuter grâce au fait que les diagonales 3 sont toutes séparées et en outre,la hauteur de charpente entre les nappes supérieure et inférieure peut être

  
adaptée aisément en changeant simplement les diagonales sans rien modifier aux nappes.

  
Cette grande souplesse d'assemblage permet avec une

  
égale facilité d'assembler toute la charpente sur place

  
en formant les nappes de barres supérieure et inférieure avec des tronçons de barres de longueurs normalisées ainsi que d'assembler sur place plusieurs parties de charpente pré-assemblées. Les noeuds de liaison à la jonction de tronçons de barres ou de parties de charpente se présentent alors comme montré aux figures 4 et 5. Le noeud de liaison est constitué par la superposition d'un méplat 11 d'une barre 1 et de deux méplats 21A, 21B appartenant à deux tronçons de barres 2 contigus, les méplats de diagonales 31 étant fixés par paire à chacun des méplats 21A

  
et 21B à l'aide des boulons 5. 

REVENDICATIONS.

  
1. Charpente spatiale en treillis comprenant une nappe supérieure de barres croisées (1,2),une nappe inférieure de barres croisées (1,2) et des diagonales (3) reliant les nappes de barres supérieure et inférieure, caractérisée en ce que les barres (1,2) des nappes supérieure et inférieure sont formées avec des méplats (11,21) à intervalles réguliers , en ce que les diagonales(3) ont leurs extré� mitésx formées avec des méplats (31) pliés suivant un angle déterminé, et en ce que les noeuds de liaison (4) entre les barres (1,2) des nappes supérieure et inférieure et les diagonales (3) sont constitués chacun d'un méplat

  
(11) d'une première barre (1), d'un méplat (21) d'une seconde barre (2) s'étendant dans une direction transversale à celle de la première barre, et de quatre méplats de diagonales (31), l'ensemble étant liaisonné au moyen de quatre boulons (5), un pour chaque diagonale (3).



  Light space truss structure Light space truss structure.

  
The present invention relates to a lattice space frame comprising two horizontal plies of crossed bars, interconnected by diagonals.

  
The invention aims to allow great flexibility and great rationalization of assembly from standardized elements while ensuring perfect properties of static and dynamic resistance to the connecting nodes.

  
This object is achieved thanks to the frame according to the invention in which the bars of the upper and lower plies are formed with flats at regular intervals, in that the diagonals have their ends formed with flats folded at a determined angle and in this that the connecting nodes between the bars of the upper and lower plies and the diagonals each consist of a flat of a first bar, of a flat of a second bar extending in a direction transverse to that of the first bar, and four diagonal flats, the whole being connected by means of four bolts, one for each diagonal.

   In an alternative embodiment, the flat part of a bar in a knot comprises two juxtaposed end flats, each end flap belonging to a separate bar section, two diagonal flats being fixed perpendicular to each of said flats end.

  
The invention is described in detail in the following with reference to the attached drawings in which:
Figure 1 is a general schematic view of part of a space frame according to the invention;

  
Figures 2 and 3 illustrate, respectively

  
section and plan, a first embodiment of a

  
link node in the frame of Figure 1;

  
Figures 4 and 5 illustrate, respectively in section

  
and in plan, a second embodiment of a node

  
of connection in the frame of Figure 1.

  
Referring to Figure 1, the frame illustrated

  
comprises two horizontal plies each consisting of crossed bars 1 and 2, the two plies being joined by diagonals 3. The bars 1 and 2 are for example hollow metal profiles of square or rectangular section. At the crossing points, the bars are formed with flats, 11 and 21 respectively. The diagonals 3 consist for example of metal tubes having their ends formed with flats 31 folded at the desired angle and connected to the upper and lower plies at crossings of the bars 1 and 2 of these plies.

  
Bars 1 and 2 may be in one piece extending over the entire span of the frame or be made up of several sections of determined lengths. The angulation of the diagonals 3 is obviously a function of the pitch of the trellis and the distance between the upper and lower layers.

  
The connecting nodes 4 between the diagonals 3 and the layers of upper and lower bars are formed as shown for example in Figures 2 and 3. The node 4 illustrated is formed by the superposition of a flat of a bar 1, of a flat 21 of a bar 2 and four flat diagonals 31, the entire knot being linked by means of four bolts 5, one bolt for each diagonal 3.

  
The assembly of the frame as described above is very flexible: the realization of nodes 4 on the site is easy to execute thanks to the fact that the diagonals 3 are all separate and in addition, the frame height between the upper plies and lower may be

  
easily adapted by simply changing the diagonals without modifying the layers.

  
This great flexibility of assembly allows with a

  
equal ease of assembling all the framework on site

  
by forming the layers of upper and lower bars with sections of bars of standardized lengths as well as assembling on site several pre-assembled frame parts. The connecting nodes at the junction of sections of bars or of framing parts are then presented as shown in FIGS. 4 and 5. The connecting node is constituted by the superposition of a flat 11 of a bar 1 and of two flat 21A, 21B belonging to two contiguous sections of bars 2, the diagonal flats 31 being fixed in pairs to each of the flats 21A

  
and 21B using bolts 5.

CLAIMS.

  
1. Spatial truss structure comprising an upper layer of crossed bars (1,2), a lower layer of crossed bars (1,2) and diagonals (3) connecting the layers of upper and lower bars, characterized in that the bars (1,2) of the upper and lower plies are formed with flats (11,21) at regular intervals, in that the diagonals (3) have their ends � mitésx formed with flats (31) folded at a determined angle, and in that the connecting nodes (4) between the bars (1,2) of the upper and lower plies and the diagonals (3) each consist of a flat

  
(11) of a first bar (1), of a flat (21) of a second bar (2) extending in a direction transverse to that of the first bar, and of four flat diagonals (31) , the assembly being connected by means of four bolts (5), one for each diagonal (3).


    

Claims (1)

2. Charpente selon la revendication 1, caractérisée en ce que dans un noeud de liaison (4), le méplat (par exemple 21) d'une barre de la charpente comprend deux méplats d'extrémité juxtaposés (21A, 21B), chaque méplat d'extrémité appartenant à un tronçon de barre distinct (2A, 2B), deux méplats de diagonales (31) étant fixés à l'aplomb de chacun desdits méplats d'extrémité. 2. Frame according to claim 1, characterized in that in a connecting node (4), the flat (for example 21) of a frame bar comprises two juxtaposed end flats (21A, 21B), each flat end belonging to a separate bar section (2A, 2B), two diagonal flats (31) being fixed vertically to each of said end flats. 3. Charpente en substance telle que décrite dans ce qui précède et illustrée sur les dessins ci-annexés. 3. Framework in substance as described in the foregoing and illustrated in the attached drawings. 4. Noeud de liaison dans une charpente spatiale en treillis, en substance tel que décrit dans ce qui précède et illustré aux figures 2 à 5 des dessins ci-annexés. 4. Connection node in a space truss structure, in substance as described in the above and illustrated in Figures 2 to 5 of the accompanying drawings.
BE0/209607A 1982-11-30 1982-11-30 Lightweight trellis-type space frame - has flattened bar connections between main frame bars and braces retained by bolts BE895191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE0/209607A BE895191A (en) 1982-11-30 1982-11-30 Lightweight trellis-type space frame - has flattened bar connections between main frame bars and braces retained by bolts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE895191 1982-11-30
BE0/209607A BE895191A (en) 1982-11-30 1982-11-30 Lightweight trellis-type space frame - has flattened bar connections between main frame bars and braces retained by bolts

Publications (1)

Publication Number Publication Date
BE895191A true BE895191A (en) 1983-03-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214137A4 (en) * 1984-05-31 1987-04-14 Tulserate Ltd Space frames.
WO1999041466A1 (en) * 1998-02-13 1999-08-19 The University Court Of The University Of Dundee Structural systems
EP1496166A4 (en) * 2002-03-13 2007-05-30 Mia Inc Architectural Inst Of Space truss
US10465373B2 (en) 2016-07-28 2019-11-05 Cole David Kazuyuki TURNER Integrated structural member

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214137A4 (en) * 1984-05-31 1987-04-14 Tulserate Ltd Space frames.
US4704836A (en) * 1984-05-31 1987-11-10 Tulserate Limited Space frames
WO1999041466A1 (en) * 1998-02-13 1999-08-19 The University Court Of The University Of Dundee Structural systems
EP1496166A4 (en) * 2002-03-13 2007-05-30 Mia Inc Architectural Inst Of Space truss
US10465373B2 (en) 2016-07-28 2019-11-05 Cole David Kazuyuki TURNER Integrated structural member
US10982426B2 (en) 2016-07-28 2021-04-20 Cole David Kazuyuki TURNER Integrated structural member

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: UTEMA-TRAVHYDRO S.A.

Effective date: 19981130