EP0083347B1 - Panneau composite pour le recouvrement d'une surface plane - Google Patents

Panneau composite pour le recouvrement d'une surface plane Download PDF

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Publication number
EP0083347B1
EP0083347B1 EP82901959A EP82901959A EP0083347B1 EP 0083347 B1 EP0083347 B1 EP 0083347B1 EP 82901959 A EP82901959 A EP 82901959A EP 82901959 A EP82901959 A EP 82901959A EP 0083347 B1 EP0083347 B1 EP 0083347B1
Authority
EP
European Patent Office
Prior art keywords
plate
ribs
panel according
cement
concrete
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
Application number
EP82901959A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0083347A1 (fr
Inventor
Carolus Josephus Anna Peeters
Fernand Léon Bertha MOORS
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.)
Anstalt fuer Metallbau
Original Assignee
Anstalt fuer Metallbau
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 Anstalt fuer Metallbau filed Critical Anstalt fuer Metallbau
Priority to AT82901959T priority Critical patent/ATE17764T1/de
Publication of EP0083347A1 publication Critical patent/EP0083347A1/fr
Application granted granted Critical
Publication of EP0083347B1 publication Critical patent/EP0083347B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1662—Inverted roofs or exteriorly insulated roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material

Definitions

  • Panels for covering a flat surface are known, mainly intended for covering a flat roof.
  • This type of panel generally comprises a cement or reinforced concrete plate with fibers, filaments, and / or a rigid reinforcement, and a rigid insulator plate with cellular structure, the two plates being nested one in the 'other.
  • the publication DE-A-2 231 353 describes such a panel where the ribs, wider than tall, of the cement plate penetrate less than an eighth into the depth of the insulating plate, so as to weaken it. less possible.
  • the insulating plate described in this publication may have similar grooves located on the side of this plate opposite the ribs of the cement plate, and used mainly for ventilation.
  • the panel according to the present invention and its manufacturing method are defined as stated in the claims.
  • Such a construction avoids. progressive erosion of the rigid insulation, because the thermal stresses to which the panel is subjected fragment the insulating plate essentially along the predetermined breaking lines, thus forming fairly large blocks which no longer tend to crumble growing and thereby losing a large part of their thermal insulation capacity.
  • the static resistance of such blocks although lower than that of an unfractured insulating plate, remains greater than that - practically zero - of a plate crumbled by repeated temperature variations.
  • the breaking lines are determined in the insulation by providing ribs on the face of the concrete facing the insulation, at least some of which are deep enough to initiate a preferential rupture facing these ribs. These at the same time improve the cohesion between the insulation layer and that of cement or concrete, as well as the static resistance of the latter, which thus forms a box ceiling, embedded in the rigid insulation.
  • a variant consists in terminating the ribs with a dihedral preferably having an acute opening angle, the sharp edge of which causes the initiation of rupture in the insulation. It is also possible to initiate rupture lines by cuts - preferably in the form of a dotted line - in the insulation and facing the ribs, if these are also provided.
  • the predetermined breaking lines of the insulation reduce its tendency to crack elsewhere, even after numerous temperature cycles, which avoids the well-known and very damaging progressive erosion of the insulation of the previously known panels.
  • the number 1 designates the concrete plate forming the surface to be covered, which here represents a roof.
  • This is covered with an impermeable layer 2 in a compound of bitumen and latex, a product which is widely marketed.
  • this layer has the distinction of being flexible enough to compensate for the unevenness still present in the surface to be covered.
  • the waterproof layer 2 is self-adhesive, and thus immobilizes a layer of insulating material 4, which is superimposed on it, relative to the roof 1.
  • the thermally insulating layer 4 is formed by plates of an insulator with closed or open cell structure which may be extruded or expanded polystyrene for example, or a similar material.
  • the insulation 4 is a layer of compacted cement 5, reinforced by threads 6 of organic or other material, which can be either formed of twisted fibers or of single-strand filaments, the threads themselves being crimped or not .
  • threads 6 of organic or other material, which can be, among other things, polypropylene, polyester, "Kevlar", etc .
  • the cement can be reinforced by a rigid reinforcement 7, either metallic or one of the materials previous (shown in dashed points), and which will preferably extend to the interior of ribs 8 mechanically fixing the layer of cement 5 to the insulation 4.
  • a preferred embodiment provides armament of the panel by rigid anchor bars partially embedded in the cement, and partially in the insulation.
  • anchor bars can be formed by the usual reinforcing bars of cement or concrete, which will protrude from it on its face facing the insulator.
  • an anchor bar 10 joins different ribs 8, 9 through the insulation 4, but many other forms of armament bars common to the two plates are obviously possible.
  • the depth of the ribs 8 is sufficient to determine, at their height, the preferred zones Z of rupture of the insulation.
  • a judicious choice of the spacing of these ribs, here called “long ribs” makes it possible to prevent the formation of cracks in other places, even after repeated temperature cycles and with very different coefficients of thermal expansion for the cement and insulating material with cellular structure. If the static loads require it, provision may be made for other ribs 11, called “short ribs", of a lower height and which thereby reinforce the panel without determining break zones equivalent to those of the long ribs. It is obviously advantageous to provide two groups (8a, 8b) of ribs orthogonal to one another, so that the layer of cement forms a coffered ceiling as shown in perspective in FIG. 2.
  • This ceiling is embedded in the insulation, and it is permissible during manufacture to use one or the other of these layers as a lost mold for pouring into it, respectively for expanding the other.
  • Figure 3 shows a choice of a few profiles that can be used to determine break lines, in addition to the long rib 8 already described in Figure 2. Obviously these different profiles, shown here in a single figure, will not necessarily be used simultaneously in one panel.
  • the ribs 14 and 15 have a stepped profile whose width decreases towards their end, which makes it possible to form relatively high profiles, with a reduced weight of cement.
  • Profiles 16 and 17 terminate in an acute angle dihedral which induces a fracture initiation even when the rib does not sink very deeply into the insulation.
  • the rupture can also be initiated by a cut 18 in the insulation, made in front of a rib and for example forming a dotted line in the direction normal to the drawing.
  • the reference 20 indicates a preferred position for rigid cocking bars, close to and parallel to the free edge of the long ribs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)
EP82901959A 1981-07-13 1982-07-12 Panneau composite pour le recouvrement d'une surface plane Expired EP0083347B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82901959T ATE17764T1 (de) 1981-07-13 1982-07-12 Kompositpaneel zur bedeckung einer flachen oberflaeche.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4592/81 1981-07-13
CH459281 1981-07-13

Publications (2)

Publication Number Publication Date
EP0083347A1 EP0083347A1 (fr) 1983-07-13
EP0083347B1 true EP0083347B1 (fr) 1986-01-29

Family

ID=4278961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82901959A Expired EP0083347B1 (fr) 1981-07-13 1982-07-12 Panneau composite pour le recouvrement d'une surface plane

Country Status (9)

Country Link
EP (1) EP0083347B1 (it)
JP (1) JPS58501185A (it)
DE (1) DE3268800D1 (it)
ES (1) ES275127Y (it)
IT (1) IT1190916B (it)
LU (1) LU90407I2 (it)
PT (1) PT75227B (it)
WO (1) WO1983000176A1 (it)
ZA (1) ZA824841B (it)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567836A (it) *
GB673472A (en) * 1947-09-16 1952-06-04 Emin Balin Improvements in or relating to building slabs
NL302650A (it) * 1963-12-24
FR1444277A (fr) * 1965-05-22 1966-07-01 Preba S A Perfectionnements à la construction des planchers de bâtiments
DE2049304A1 (de) * 1970-10-07 1972-04-13 Westag & Getalit AG, 4832 Wiedenbrück Mindestens einseitig mit Kunststoffbeschichtete, großflächige, in einer Richtung gewölbte Trägerplatte und Verfahren zu ihrer Herstellung
FR2142579A1 (it) * 1971-06-21 1973-02-02 Areco
DE2231353A1 (de) * 1972-06-27 1974-01-10 Daemmbau Isopor Kunststoff Gmb Flachdachabdeckung bestehend aus einer daemmschicht und einem, auf dieser verlegten wasserundurchlaessigen belag
DE2548659A1 (de) * 1975-10-30 1977-05-05 Ruhrkohle Ag Abdichtende eindeckung, insbesondere fuer flachgeneigte daecher und flachdaecher
DE2658620C3 (de) * 1976-12-23 1979-05-31 Heinz 8644 Pressig-Welitsch Carl Bleibendes Schalungselement mit einer Isolierschicht

Also Published As

Publication number Publication date
EP0083347A1 (fr) 1983-07-13
LU90407I2 (fr) 1999-08-25
ZA824841B (en) 1983-04-27
PT75227A (en) 1982-08-01
PT75227B (en) 1984-10-29
WO1983000176A1 (en) 1983-01-20
ES275127U (es) 1984-02-01
IT8222376A0 (it) 1982-07-13
IT1190916B (it) 1988-02-24
JPS58501185A (ja) 1983-07-21
ES275127Y (es) 1984-10-01
IT8222376A1 (it) 1984-01-13
DE3268800D1 (en) 1986-03-13

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