EP0448617B1 - Panneau de construction - Google Patents

Panneau de construction Download PDF

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Publication number
EP0448617B1
EP0448617B1 EP90900879A EP90900879A EP0448617B1 EP 0448617 B1 EP0448617 B1 EP 0448617B1 EP 90900879 A EP90900879 A EP 90900879A EP 90900879 A EP90900879 A EP 90900879A EP 0448617 B1 EP0448617 B1 EP 0448617B1
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EP
European Patent Office
Prior art keywords
lamella
core
board
joints
length
Prior art date
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Application number
EP90900879A
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German (de)
English (en)
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EP0448617A1 (fr
Inventor
Lars Heselius
Esko Brunila
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Paroc Group Oy AB
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Partek Oy AB
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    • 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
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal

Definitions

  • the invention relates to a sandwich element with a core of longitudinal lamellas, according to the preamble of claim 1.
  • Lamella cores of this type are prior known, having been used for instance in shipbuilding industry as insulating walls of various spaces.
  • SE-A 368 949 discloses a method for producing a lamella board having fibres oriented perpendicularly to the plane of the board. Such a result is obtained by rotating cut lamella strips by 90° and by reassembling the said strips in the reversed position.
  • the so obtained lamella core has excellent resistance properties and is able to transfer shearing forces between its surface planes.
  • the method is fairly complicated and expensive.
  • EP-A-445 245 also describes the manufacture of lamella board. Thereby, finished sandwich elements of mineral wool with the fibres oriented perpendicularly to the surface plane of the element would be usable as supporting roof, floor and wall elements, thus simplifying construction operations noticeably.
  • the object of this invention is to provide long sandwich elements having a core consisting of fire, noise and heat insulating lamella boards for roof, floor and wall constructions.
  • the facts mentioned about the joint surface of the lamella pieces are pertinent regardless of the joint surface being vertical to the surface layer of the lamella core or its being tilted, the joint surface being greater in the latter case than in the former.
  • the total surface of the joint surfaces must not exceed one third of the cross-sectional surface.
  • a lamella core with nine lamella strips whereby the length a of the core may comprise three vertical joint surfaces, none of which is an inclined joint surface, which would result in a total joint surface that is greater than one third of the total cross-sectional surface.
  • a long sandwich element can be provided, of the size order of 9-10 m, by means of lamella strips rotated 90° and reassembled, without handling mineral wool mats nor lamella strips of the corresponding length.
  • a core is obtained which used in a sandwich element has the same resistance properties as a core without joints, i.e. in which the weakening influence of the joints has been eliminated.
  • none of the joints is closer to an end of the lamella core than a.
  • maximally one joint is disposed within the range 2a from either end of the core.
  • maximally two joints are disposed within the distance 3a from either end of the core.
  • the distance a indicating the length of the critical area equals L/2n. Since the support points, among others, have a certain extension, the length a has to be made somewhat longer, and thus the length L is appropriately divided by 1,9n.
  • the distance between joints in two adjacent lamella strips preferably equals at least the thickness of the strips in the lamella core, i.e. the thickness of the lamella core.
  • the lamella pieces are connected with a glue joint by applying glue to the end surfaces before connecting and fixing e.g. by drying subsequent to the forming of the sandwich board.
  • the glue application is appropriately performed before the phase displacement of the flow of lamella pieces.
  • the end surfaces of the lamella pieces are face milled or prepared so as to match the surfaces well, before a possible glue application.
  • the future lateral surfaces of the lamella pieces are face milled or prepared so that the lamella pieces will fit tightly to each other.
  • traces are made in the end faces of the lamella pieces, parallel to the plane of the lamella core or perpendicular to these, so as to provide a finger joint between the lamella pieces.
  • the lamella pieces are pressed together during the connecting moment at a pressure exceeding 100 Pa, preferably 500 Pa.
  • the mineral wool mat used as starting material consists of a binder fixed mineral wool, which may be a rock wool or a glass wool, forming essentially plane parallel layers consisting of vitreous fibres more or less in disorder.
  • a binder fixed mineral wool which may be a rock wool or a glass wool
  • essentially plane parallel layers consisting of vitreous fibres more or less in disorder.
  • the parameters a, L and n are used for determining the exact position for cutting a lamella strip to a lamella of the length of the lamella core in such a way that the joints of neighbouring lamella strips will be positioned according to the conditions defined in claim 1. Said parameters determine the length of phase displacing the lamella pieces and they are used for programming a computer for automatic control of the cutting of the lamella strips.
  • the lamella core is indicated by 1, the lamella pieces by 2 and the joint between the lamella pieces forming the lamella strips of the lamella board by 3.
  • the vertical orientation of the fibre planes is indicated.
  • joints 3 are relatively equally distributed over the lamella board and a comparison between the above parameters shows that all the criteria are being fulfilled.
  • the manufacture of the lamella core is carried out by assembling laterially lamella pieces cut from a mineral wool mat and rotated to form the lamella core. Assembling of the lamella pieces that have been cut off and rotated can be accomplished in various manners.
  • lamella pieces are cut from the mineral wool sheet and rotated and subsequently phase displaced axially.
  • the phase displaced lamella pieces are subsequently assembled with a butting end faces against each other with the preceding flow of correspondingly cut and phase displaced lamella pieces into a flow of lamella strips, from which a length equalling the length of the lamella board is cut off.
  • the two surface layers are applied onto the lamella board to form the sandwich element.
  • the sandwich element of the invention is usable as supporting wall, floor or roof elements.
  • the element has good fire and heat insulation properties owing to its construction, and it is easy to install.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Vending Machines For Individual Products (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Luminescent Compositions (AREA)
  • Panels For Use In Building Construction (AREA)
  • Nonwoven Fabrics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (7)

  1. Elément sandwich comprenant une âme (1) de bandes lamellaires disposées de façon adjacente en laine minérale fixée par un liant,s'étendant dans le sens longitudinal de l'élément, et une couche superficielle, par exemple en tôle métallique,attachée sur les deux côtés de l'âme, les fibres de laine minérale étant distribuées dans des plans parallèles qui sont perpendiculaires aux surfaces principales de l'élément, caractérisé en ce que les bandes lamellaires se composent de pièces lamellaires (2) plus courtes que l'âme (1), les surfaces des extrémités opposées des pièces lamellaires alignées (2) formant un joint (3), et en ce que le total des surfaces des joints à l'intérieur d'un certain intervalle ayant la longueur longitudinale "a", représente au maximum un tiers de la surface de la section transversale de l'âme, ladite longueur "a" = L/(1,90n)
    Figure imgb0003
    Figure imgb0004
    , où L = la longueur de l'âme lamellaire, quand l'élément est un élément en une partie, et L = une partie quand l'élément est en plusieurs parties, et n = le nombre de bandes lamellaires latéralement adjacentes dans l'âme (1).
  2. Elément sandwich selon la revendication 1, caractérisé en ce qu'aucun joint (3) n'est situé plus près d'une extrémité de l'âme lamellaire (1) ou d'une ligne de support d'un élément en plusieurs parties, respectivement que la longueur "a".
  3. Elément sandwich selon les revendications 1 ou 2, caractérisé en ce que au maximum un joint (3) est situé à l'intérieur de la distance "2a" à partir d'une extrémité de l'âme lamellaire (1) ou d'une ligne de support d'un élément en plusieurs parties, respectivement.
  4. Elément sandwich selon l'une quelconque des revendications 1-3, caractérisé en ce que au maximum deux joints (3) sont situés à l'intérieur de la distance "3a" à partir d'une extrémité de l'âme lamellaire (1) ou d'une ligne de support d'un élément en plusieurs parties, respectivement.
  5. Elément sandwich selon l'une quelconque des revendications 1-4, caractérisé en ce que la distance longitudinale entre deux joints (3) dans deux bandes lamellaires adjacentes est au moins égale à l'épaisseur de l'âme lamellaire (1).
  6. Elément sandwich selon l'une quelconque des revendications 1-5, caractérisé en ce que les surfaces des extrémités opposées des joints (3) sont pressées l'une contre l'autre pour former une zone limite où les fibres des deux pièces lamellaires opposées (2) se confondent.
  7. Elément sandwich selon l'une quelconque des revendications 1-6, caractérisé en ce que les surfaces des extrémités opposées des joints sont collées l'une contre l'autre.
EP90900879A 1988-12-16 1989-12-15 Panneau de construction Expired - Lifetime EP0448617B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI885848A FI82518B (fi) 1988-12-16 1988-12-16 Laongstraeckt lamellskiva av mineralull, laemplig som kaerna i ett sandwichelement.
FI885848 1988-12-16
PCT/FI1989/000234 WO1990007039A1 (fr) 1988-12-16 1989-12-15 Panneau de construction

Publications (2)

Publication Number Publication Date
EP0448617A1 EP0448617A1 (fr) 1991-10-02
EP0448617B1 true EP0448617B1 (fr) 1995-03-29

Family

ID=8527589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900879A Expired - Lifetime EP0448617B1 (fr) 1988-12-16 1989-12-15 Panneau de construction

Country Status (8)

Country Link
EP (1) EP0448617B1 (fr)
AT (1) ATE120510T1 (fr)
CA (1) CA2005501A1 (fr)
DE (1) DE68921991T2 (fr)
DK (1) DK167544B1 (fr)
ES (1) ES2073014T3 (fr)
FI (1) FI82518B (fr)
WO (1) WO1990007039A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262217A (en) * 1989-05-04 1993-11-16 Hunter Douglas International N.V. Core arrangement in mineral wool sandwich panel
FI86160C (sv) * 1990-09-04 1993-03-31 Partek Ab Förfarande för tillverkning av sandwichelement bestående av en kärna a v mineralullslameller och ytskikt exempelvis av plåt samt en anordning för utförande av förfarandet
IT1266174B1 (it) * 1994-07-18 1996-12-23 Isolpack Ceria Spa Pannello isolante per edilizia
RU2270902C1 (ru) * 2004-11-15 2006-02-27 Закрытое акционерное общество "Мосстрой-31" (ЗАО "Мосстрой-31") Сэндвич-панель

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE368949B (fr) * 1972-02-17 1974-07-29 Rockwool Ab
SE385389B (sv) * 1974-06-24 1976-06-28 Rockwool Ab Sammansatt av berande reglar och mellan dem inpassade, vermeisolerande paneler bestaende fackverkskonstruktion

Also Published As

Publication number Publication date
FI82518B (fi) 1990-11-30
EP0448617A1 (fr) 1991-10-02
ATE120510T1 (de) 1995-04-15
DE68921991T2 (de) 1995-08-03
DE68921991D1 (de) 1995-05-04
DK114691A (da) 1991-08-14
FI885848A7 (fi) 1990-06-17
WO1990007039A1 (fr) 1990-06-28
FI885848A0 (fi) 1988-12-16
ES2073014T3 (es) 1995-08-01
DK114691D0 (da) 1991-06-14
DK167544B1 (da) 1993-11-15
CA2005501A1 (fr) 1990-06-16

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