EP0220256B1 - Lamelliertes bauelement - Google Patents

Lamelliertes bauelement Download PDF

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Publication number
EP0220256B1
EP0220256B1 EP86902840A EP86902840A EP0220256B1 EP 0220256 B1 EP0220256 B1 EP 0220256B1 EP 86902840 A EP86902840 A EP 86902840A EP 86902840 A EP86902840 A EP 86902840A EP 0220256 B1 EP0220256 B1 EP 0220256B1
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EP
European Patent Office
Prior art keywords
constructional
strips
holes
longitudinal
spacing
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.)
Expired - Lifetime
Application number
EP86902840A
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English (en)
French (fr)
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EP0220256A1 (de
Inventor
Bruno Ricard
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets

Definitions

  • the present invention relates to an elongated construction element made of wood and with a lamellar structure, such as a beam allowing the implementation of a modular construction system of frames and frameworks of formwork or other works. It also targets the frameworks of formwork and the frameworks made using this element.
  • the elongated pieces of wood used in construction for the execution of the frameworks of forms, or the frames of various works, such as beams, uprights, sleepers and others, are generally made of solid wood and the perforations necessary for their assembly are most often carried out on construction sites, as required.
  • FR-A-2,194,145 It is however known (FR-A-2,194,145) to produce a framework beam formed from several layers of superimposed glued wood and constituting a module allowing the implementation of a modular construction system of frameworks and frameworks, this beam having standardized dimensions and being provided with equidistant assembly holes, traversing it right through perpendicular to its longitudinal direction and distributed over and along the longitudinal center line on a longitudinal side, equidistant from the lateral faces opposite longitudinal adjacent to this side.
  • the building element described in this document consists of three layers of glued wood formed by planks and the square section holes are oriented parallel to the plane of the glued superimposed planks.
  • the construction element described in the above-mentioned document can be easily combined or assembled, in various positions, with one or more other similar modular elements; it also provides great ease of assembly and disassembly allowing reuse.
  • this element has very poor resistance to the compressive forces applied to the walls delimiting its assembly holes. Indeed, if a rod (such as the rod of a connecting device) is engaged in one of the holes of the element and if this rod receives a tensile force perpendicular or approximately perpendicular to said element, the compressive force communicated to one of the covering boards or layers of the latter can easily cause, either the rupture of said layer, or its detachment due to the fact that this compressive force corresponds to a force directly supported by the layer of adhesive and tending to separate the glued wooden boards.
  • This drawback is amplified by the square section of the holes which means that the cylindrical rods are in contact via a generator with the flat wall delimiting said holes, which favors the crushing of said wall.
  • the object of the present invention is in particular to remedy the drawbacks and inadequacies of modular wooden construction elements such as that described in document FR-A-2,194,145.
  • the modular construction element or beam according to the invention has in particular the advantage.
  • This element 1 with a lamellar structure is remarkable in that it consists of a plurality of folds or thin strips of wood 1a, 1b, 1c, 1d, ..., 1n, glued or laminated, including the wood grain. is oriented in the same direction. More specifically, the fibers of all the thin strips of wood or adjoined plies are oriented in the length direction L of the element.
  • this element is provided with a plurality of transverse holes 3, regularly spaced, crossing it right through, in the direction of its thickness E.
  • the perforations or equidistant holes 3 advantageously have a cylindrical shape and they are distributed over the entire length L of the element 1.
  • construction elements according to the invention can be made with various lengths, widths and thicknesses, it being understood that, depending on their destination, they can advantageously be standardized to present an identical section and different lengths.
  • the spacing 2 ′ which separates each end of the element of the perforation 3 disposed near this end, is equal to half of the pitch 2 or spacing which separates the perforations.
  • the wood used for making the building element according to the invention can advantageously be a spruce from the northern regions.
  • the plies or sheets of veneer are obtained, in a known manner, by peeling or slicing, and are glued or laminated using films or layers of phenolic resins known per se, which participate in the enrichment of the elements thus executed and improve their performance.
  • the element with a lamellar structure according to the invention lends itself to very varied uses and can withstand significant efforts, without risk of buckling, cracking or rupture.
  • Figures 3 and 6 illustrate the assembly of two identical beams 1 abutted, by means of splints 1 'arranged on either side of the end parts of said beams and assembled by means of bolts 5, passing through the holes that have said parts , these fishplates being constituted by small elements executed in accordance with the invention and comprising at least four holes 3. It is observed that the spacing 2 '' which separates the adjacent perforations 3 from the two beams 1 arranged end to end, is identical in step 2 of the perforations 3 with which said beams are provided, owing to the fact that, as indicated above, the value of the spacing 2 'corresponds to half of the step 2.
  • Figure 4 shows another method of assembling two identical beams 1 oriented in parallel. According to this mode of connection, the beams are placed in contact by one of their end part, so that at least two of their perforations 3 are placed in alignment, the assembly being carried out by means of bolts 5 passing through said perforations aligned.
  • the invention also relates to the frameworks of formwork or frames of various works, produced using a plurality of elements executed in the manner indicated above and assembled by means of connecting members known per se, such as bolts 5, bars 6 or 7, fitting 10 or others.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Laminated Bodies (AREA)
  • Toys (AREA)
  • Panels For Use In Building Construction (AREA)
  • Escalators And Moving Walkways (AREA)

Claims (6)

  1. Längliches Bauelement aus Holz, wie beispielsweise ein Balken, das die Anwendung eines modularen Konstruktionssystemes von Balkenwerk oder Tragkonstruktionen ermöglicht, wobei dieses Bauelement aus mehreren, übereinander angeordneten und miteinander verklebten Holzschichten besteht und gleichmäßig voneinander beabstandete Montagelöcher (3) aufweist, die durch das Element senkrecht zu seiner Längsrichtung hindurchführen und auf der Längsmittellinie (l') einer Längsseite des Elements in gleichen Abständen von den an dieser Seite anliegenden Längsseitenflächen (1a) verteilt sind, dadurch gekennzeichnet, daß:
    - a) der Balken oder das Bauelement aus Holz aus mehreren übereinander angeordneten dünnen Holzschichten oder -lamellen (1a, 1b, 1c, 1d, ..., 1n) gebildet ist, die miteinander verklebt oder kaschiert sind, wobei alle Fasern der Lamellen in Längsrichtung (L) des Elements ausgerichtet sind,
    - b) und daß die glattflächige Oberfläche dieser Lamellen zur breitesten Längsseitenebene des Elements parallel verläuft, wobei die Montagelöcher (3) auf der Mittellinie (l') dieser Seite senkrecht zur Lamellenebene angeordnet sind.
  2. Bauelement nach Anspruch 1, dadurch gekennzeichnet, daß die quer verlaufenden Montagelöcher (3) eine zylindrische Form aufweisen.
  3. Bauelement nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Beabstandung (2'), die jedes Ende des Elements von der nahe diesem Ende angeordneten Durchbohrung (3) trennt, gleich der Hälfte des Schrittes (2) oder des Abstandes ist, der die Durchbohrungen (3) des Elements voneinander trennt.
  4. Bauelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Breite (l) des Elements gleich der Hälfte des Schrittes oder des Abstandes (2) ist, der seine Durchbohrungen (3) voneinander trennt, und daß seine Dicke (E) einem Sechstel dieses Schrittes entspricht.
  5. Bauelement nach Anspruch 1, dadurch gekennzeichnet, daß die Holzschichten oder -lamellen (1a, 1b, 1c, 1d, ..., 1n) mit Hilfe von Filmen oder Schichten aus an sich bekannten Phenolharzen verbunden sind.
  6. Tragkonstruktion oder Schalungs- oder Konstruktions-Tragwerke, dadurch gekennzeichnet, daß sie mit Hilfe mehrerer länglicher Bauelemente mit Lamellenstruktur (1, 1') ausgeführt sind, welche nach einem der Ansprüche 1 bis 5 ausgeführt sind, und die mittels an sich bekannten Verbindungseinrichtungen (5, 6, 7) zusammengebaut sind.
EP86902840A 1985-04-30 1986-04-30 Lamelliertes bauelement Expired - Lifetime EP0220256B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8506811A FR2581109B1 (fr) 1985-04-30 1985-04-30 Element de construction allonge en contre-plaque, et ossatures realisees a l'aide de cet element
FR8506811 1985-04-30
PCT/FR1986/000149 WO1986006315A1 (fr) 1985-04-30 1986-04-30 Element de construction allonge a structure lamellaire

Publications (2)

Publication Number Publication Date
EP0220256A1 EP0220256A1 (de) 1987-05-06
EP0220256B1 true EP0220256B1 (de) 1994-07-27

Family

ID=9318967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86902840A Expired - Lifetime EP0220256B1 (de) 1985-04-30 1986-04-30 Lamelliertes bauelement

Country Status (5)

Country Link
EP (1) EP0220256B1 (de)
AT (1) ATE109061T1 (de)
DE (1) DE3689994T2 (de)
FR (1) FR2581109B1 (de)
WO (1) WO1986006315A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ237590A (en) * 1991-03-26 1994-07-26 Palmerston Extension Ladder Non-conducting ladder stile with a varying spacer portion between the compression and tension portions

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197773C (de) * 1906-06-21
DE647273C (de) * 1934-01-19 1937-07-01 Versuchsanstalt Fuer Luftfahrt Tragender Holzbauteil, z. B. Balken, Holm, Stuetze o. dgl., aus miteinander verleimten Holzteilen mit im wesentlichen in Richtung der Laengsachse des Holzbauteils verlaufenden Fasern
FR984792A (fr) * 1949-04-15 1951-07-10 Poutre en bois composée de plusieurs planches collées ensemble
DE1609756A1 (de) * 1965-09-10 1972-01-13 Oesterr Doka Schalung Holztraeger
FR2153845A5 (de) * 1971-09-23 1973-05-04 Tropimex Ag
FR2194145A5 (de) * 1972-07-31 1974-02-22 Furrer Josef
FR2487888A1 (fr) * 1980-07-30 1982-02-05 Daguze Dominique Elements de structure en bois lamelle-colle, a section en i, et dont l'ame est discontinue

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR485018A (fr) * 1917-04-05 1917-12-04 Georges Poujoulat Pièce de bois pour charpente
US1682504A (en) * 1925-11-21 1928-08-28 Horace W Hall Racket and art of manufacture thereof
FR1157524A (fr) * 1956-08-31 1958-05-30 R L Anciens Etablissements Sta Perfectionnement aux échelles
FR1235613A (fr) * 1958-06-30 1960-07-08 Constock Int Methane Ltd Panneau isolant préfabriqué de construction modulaire
FR2213144B1 (de) * 1973-01-09 1975-10-31 Desbarres Prive Ets Vve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197773C (de) * 1906-06-21
DE647273C (de) * 1934-01-19 1937-07-01 Versuchsanstalt Fuer Luftfahrt Tragender Holzbauteil, z. B. Balken, Holm, Stuetze o. dgl., aus miteinander verleimten Holzteilen mit im wesentlichen in Richtung der Laengsachse des Holzbauteils verlaufenden Fasern
FR984792A (fr) * 1949-04-15 1951-07-10 Poutre en bois composée de plusieurs planches collées ensemble
DE1609756A1 (de) * 1965-09-10 1972-01-13 Oesterr Doka Schalung Holztraeger
FR2153845A5 (de) * 1971-09-23 1973-05-04 Tropimex Ag
FR2194145A5 (de) * 1972-07-31 1974-02-22 Furrer Josef
FR2487888A1 (fr) * 1980-07-30 1982-02-05 Daguze Dominique Elements de structure en bois lamelle-colle, a section en i, et dont l'ame est discontinue

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Franz Wollmann: "Technologie des Holzes und der Holzwerkstoffe", Springer Verlag, Berlin, Heidelberg, New York, 1982, pages 618-621. *

Also Published As

Publication number Publication date
DE3689994T2 (de) 1995-03-30
ATE109061T1 (de) 1994-08-15
DE3689994D1 (de) 1994-09-01
FR2581109B1 (fr) 1987-12-18
EP0220256A1 (de) 1987-05-06
WO1986006315A1 (fr) 1986-11-06
FR2581109A1 (fr) 1986-10-31

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