(19)
(11) EP 0 383 112 B1

(12) EUROPEAN PATENT SPECIFICATION

(45) Mention of the grant of the patent:
27.10.1993 Bulletin 1993/43

(21) Application number: 90102089.1

(22) Date of filing: 02.02.1990
(51) International Patent Classification (IPC)5E04C 2/26, E04B 2/00

(54)

A set of "L" shaped prefebricated insulating wall modules and a rectangular flat module for building structures

Vorgefertigte L-förmige wärmedämmende Wandelemente und rechteckiges Element zum Errichten von Gebäuden

Ensemble d'éléments isolants préfabriqués en forme de "L" pour parois et élément rectangulaire plat pour constructions


(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 16.02.1989 IT 8251089

(43) Date of publication of application:
22.08.1990 Bulletin 1990/34

(73) Proprietors:
  • Capretta, Sisto
    I-31049 Valdobbiadene (TV) (IT)
  • Bollotto, Lucio
    I-31049 Valdobbiadene (TV) (IT)

(72) Inventors:
  • Capretta, Sisto
    I-31049 Valdobbiadene (TV) (IT)
  • Bollotto, Lucio
    I-31049 Valdobbiadene (TV) (IT)

(74) Representative: D'Agostini, Giovanni, Dr. 
D'AGOSTINI ORGANIZZAZIONE Via G. Giusti 17
33100 Udine
33100 Udine (IT)


(56) References cited: : 
DE-A- 3 103 491
US-A- 3 707 165
FR-A- 1 508 689
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description


    [0001] The present invention has for its object a set of "L" shaped prefabricated insulating wall modules and a rectangular flat module for building structures.

    [0002] In prior art "L" shaped prefabricated insulating modules for building structures are well known and available on the market.
    These "L" shaped modules are normally used to realize with one of their walls a vertical wall of the structure and with the other wall a respective upper floor/roof the respective placing position being "upside-down" in order that one wall is vertical and one is horizontal.
    This solution has the inconvenience to need further support modules to allow its support.
    Insulating stratifications in panels also with foamed material are well known in prior art and available on the market, but in prefabricated concrete walls insulation is obtained either by using an internal insulating layer or by mixing with the concrete expanded insulating material.
    The first solution does not allow to obtain a well balanced uniform structure and the second does not allow to realize a good insulation.
    FR-A-1508689 discloses a prefabricated insulating wall module comprising external and internal mesh-reinforced concrete panels which are spaced apart and concreted by steel bars, with the space between the panels filled by an insulating foamed material.
    This last solution gives the strong advantages of good insulation and strong resistance with the further advantage to allow insertion between the concrete panels electric wire connection and piping network.

    [0003] In any case no one of these solutions allows a good and strong connection between the prefabricated elements to allow very good building.
    The purpose of the present invention is to obviate said drawbacks.
    This and other purposes are reached with the present invention as claimed solving the exposed problems by means of a prefabricated insulating wall module set for building structures, comprising external and internal mesh-reinforced concrete panels which are spaced apart and connected by steel bars, with the space between the panels filled by an insulating foamed material characterized in that it includes both

    · an "L"-shaped prefabricated insulating wall module and

    · a rectangular flat module,

    • said "L"-shaped prefabricated insulating wall module:
      • having orthogonal walls of different extension that
      • in building construction are both vertical; and
      • having the respective external panel of its walls staggered in respect of said internal panel.


    [0004] In such way the predefined scope is completely obtained and it is possible to obtain both the external structure of the building and its internal structure, in conformity of the specific exigencies. Furthermore such modules are easily transportable being even stackable and easy assemblable making possible the completion of the building in short time.
    In any case by this invention the particularity of the structure, as well the modular system connection, give an optimum insulation, both thermic and acoustic, because of the staggering of their panels. A good insulation is furthermore obtained even in water piping and electric wiring encapsulated in the respective prefabricated panels, these being included in the respective insulating material and similarly extending in a staggered way, avoiding heat dispersion.
       The insulating material is conveniently fire-resistant to prevent accidental combustion, easily generated for example by short circuits in the encapsulated electric wire network.

    [0005] These and other advantages will better be understood from the following description and drawings that show specific preferred solutions of the invention, which particulars of execution are not to be considered imitative but exemplificative only.

    Figure 1 represents a diagrammatic lateral view of the main "L" shaped module consisting of two perpendicular connected walls.

    Figure 2 represents a diagrammatic plan view in section x-x of the module as represented in figure 1.

    Figures 3 represents in horizontal wall transverse section a connection system between two walls of respective modules and

    Figure 4 represents in vertical wall transverse section, particulars of fixation means of said modules to a respective base of the floor.

    Figure 5 represents a perspective view of a pre-equipped portion of the module.

    Figure 6 represents a perspective view of a module for the realization of the floor.



    [0006] Making reference to the figures we can see that for the realization of a building at least two kinds of prefabricated modules are needed for assembling. The first one (A) for the realization of the walls, the second one (B) for the realization of the floors. The first prefabricated module (A) for the realization of walls is shaped essentially in "L" shape made by perpendicular intersection of two walls (a') and (a'') forming a right angle. Said walls are obtained by means of reinforced concrete (1, 3) the reinforcing being made by means of the interposition of an electrowelded net (6). Between the concrete spaced apart panels (1, 3) the insulating material (2) e.g. polyurethane foaming is placed.

    [0007] Such structure (A) is obtained by first producing in reinforced concrete the external panel (3), then an insulating foam layer (2) is applied on its internal surface and successively the internal panel by respective final concrete casting (1) is produced, the latter being rigidly connected to the former by means of the transverse throughgoing iron-rods connection that crosses the inner insulated core and that is connected to the respective electrowelded nets (6).
    In the module (A) means for allowing jointing to an another module (A) are provided to realize the continuity of the wall. Said means are composed of reinforcing steel protrusions (1', 3') applied on one side of the edges of a wall (a') to be inserted in receiving sheaths or holes (1'', 3'') provided in the opposite edges of the module wall (a''). In such a way the possibility of connection of respective series of modules (A) is available, being associable one to one between them by means of side junction. The fixation of the wall-modules to the base of the building and/or to the floors, is realized by a plurality of holes (f) provided laterally (1, 3) in the wall-modules (a', a'') closest to the respective upper and lower edges, which enter horizontally and, curving parallel to the respective panel, exit in the underlying base (b) in which corresponding receiving recesses (f') are previously provided. Inside the holes (f) provided on one side of the wall or in both sides (1 and/or 3), are insertable dowel means (4) to engage both the hole base portion (f') and the hole wall module portion (f).
    The dowel means insertion path is indicated by the arrow 5 in Fig.4.
    In a successive phase concrete casting (g) is carried out into the interior of the hole (f), solidifying all.

    [0008] Furthermore the panel-walls (a', a'') are warded-off (staggered) with respect to each other, thus not creating thermic bridges caused by jointing of the modules (A), in particular one wall (a') is longer than the other (a'') and the first one has the external panel (3) with the respective insulating material (2) protruding beyond the end edge (1') of the internal panel (1), viceversa the opposite wall (a'') having the external panel (3) with the respective insulating material (2) recessed with respect to the internal panel (1).
    In this way the ideal coupling of the first longer wall (a') of a module (A) with the second shorter wall (a'') of another similar module (A) is made possible.

    [0009] For the realization of a floor a parallelepiped flat module (B) is essentially a rectangular panel, the reinforced concrete encasing in this the insulating core. The shaping of the respective borders provides a longitudinal step (8) and an opposite longitudinal tongue (9).

    [0010] Finally between the internal-external panels (1, 3) of said walls, and embedded in the insulating material (2), the respective hydraulic and electric connections and also phone network wiring, and so on (7) are disposed.


    Claims

    1. A prefabricated insulating wall module set for building structures, comprising external and internal mesh-reinforced concrete panels (1-3) which are spaced apart and connected by steel bars, with the space between the panels (1-3) filled by an insulating foamed material (2) characterized in that it includes both

    · an "L"-shaped prefabricated insulating wall module (A) and

    · a rectangular flat module (B),

    - said "L"-shaped prefabricated insulating wall module (A):

    - having orthogonal walls (a',a'') of different extension that

    - in building construction are both vertical; and

    - having the respective external panel (3) of its walls, (a' - a'') staggered with respect to the internal panel (1).


     
    2. A prefabricated insulating wall module set as claimed in claim 1, characterized in that

    - in one wall (a') the external panel (3) extends beyond the end of said internal panel (1) with the respective insulating material (2), and

    - in the opposite wall (a'') the external panel (3) stops short with respect to the internal panel (1) with its insulating material (2), in order to allow the relative coupling of opposed walls, first wall (a') with second wall (a'') of another modular module (A).


     
    3. A prefabricated insulating wall module set as claimed in claim 1, characterized in that said external panel (3) and internal panel (1) of the walls (a') and (a'') of the "L" shaped prefabricated insulating wall module (A) have in their respective opposite vertical connecting borders:

    - in one border recesses (1'',3'');

    - in the opposite border reinforcing steel protrusions (1') to allow a dowelled connection between other modules.


     
    4. A prefabricated insulating wall module set as claimed in claim 1, characterized in that said external panel (3) and internal panel (1) of said walls (a'- a'') have at the lower edge of their respective panel surfaces (1-3) a curved recess (f) entering horizontally and exiting vertically on the base of the module to correspond to a recess (f')in a basement, to allow a continuous hole connection (f, f') wherein a dowel means can be insertable (4) to allow concrete casting (g) for fixing the wall structure module on said basement.
     
    5. A prefabricated insulating wall module set as claimed in claim 1, characterized in that said rectangular flat module (B) has a floor module panel having the opposed edges one with a longitudinal step (8) and the other with a longitudinal tongue (9).
     


    Ansprüche

    1. Ein Satz von vorgefertigten wärmedämmenden Wandelementen zum Errichten von Gebäuden, mit inneren und äußeren Zementplatten mit Stahleinlage (1-3), die durch Stahlstangen verbunden und in Abstand gehalten werden, wobei der Raum zwischen den Platten (1-3) mit einem wärmedämmenden Schaummaterial (2) gefüllt ist, gekennzeichnet dadurch, daß es sowohl

    · ein L-förmiges vorgefertigtes wärmedämmendes Wandelement (A) wie auch

    · ein flaches rechteckiges Element (B) enthält,

    - wobei das besagte L-förmige vorgefertigte wärmedämmende Wandelement (A)

    - orthogonale Wände (a' ,a'') von verschiedener Ausdehnung aufweist, die beim Bau beide vertikal sind, und

    - die jeweilige Außenplatte seiner Wände (a',a'') zur Innenplatte (1) versetzt ist.


     
    2. Ein Satz von vorgefertigten wärmedämmenden Wandelementen wie nach Anspruch 1, gekennzeichnet dadurch, daß

    - bei der einen Wand (a') die Außenplatte (3) sich über das Ende der besagten Innenplatte (1) mit dem wärmedämmenden Material (2) hinaus erstreckt, und daß

    - bei der gegenüberliegenden Wand (a'') die Außenplatte (3) vor dem Ende der besagten Innenplatte (1) mit dem wärmedämmenden Material (2) endet, so daß eine Aneinanderfügung von gegenüberliegenden Wänden möglich ist: die erste Wand (a') mit der zweiten Wand (a'') eines anderen Elements (A).


     
    3. Ein Satz von vorgefertigten wärmedämmenden Wandelementen wie nach Anspruch 1, gekennzeichnet dadurch, daß die besagte Außenplatte (3) und die Innenplatte (1) der Wände (a',a'') des L-förmigen vorgefertigten wärmedämmenden Wandelements (A) an ihren gegenüberliegenden vertikalen Verbindungsrändern

    - an einem Rand Vertiefungen (1'', 3'') aufweisen und

    - an dem gegenüberliegenden Rand armierte Stahlvorsprünge (1') für eine verdübelte Verbindung mit anderen Elementen.


     
    4. Ein Satz von vorgefertigten wärmedämmenden Wandelementen wie nach Anspruch 1, gekennzeichnet dadurch, daß die besagte Außenplatte (3) und die Innenplatte (1) der Wände (a',a'') am Unterrand ihrer Plattenoberflächen (1-3) eine gewölbte Vertiefung (f) aufweisen, die horizontal in der Grundfläche des Elements anläuft und vertikal ausläuft, entsprechend einer Vertiefung (f') in einem Unterbau, so daß eine durchgehende Lochverbindung (f, f') entsteht, in die ein Dübelelement (4) eingesetzt werden kann, so daß Betonguß (g) möglich wird, um das Wandstrukturlement auf dem Unterbau zu befestigen.
     
    5. Ein Satz von vorgefertigten wärmedämmenden Wandelementen wie nach Anspruch 1, gekennzeichnet dadurch, daß besagtes flaches rechteckiges Element (B) ein Bodenplattenelement aufweist, von deren gegenüberliegenden Rändern einer einen länglichen Absatz (8) und der andere eine längliche Zunge (9) aufweist.
     


    Revendications

    1. Ensemble d'éléments pour parois de mur servant au montage de structures de constructions comportant des panneaux (1-3) extérieurs et intérieurs en béton armé reliés par des barres d'acier et séparés par un espace rempli d'une mousse isolante (2) caractérisé par le fait qu'il comporte à la fois:

    · un élément isolant préfabriqué (A) en forme de "L" pour paroi,

    · et un élément rectangulaire plat (B),

    - le dit élément isolant préfabriqué (A) en forme de "L" pour paroi:

    - comprenant des parois orthogonales (a', a'') de dimensions différentes

    - qui sont toutes deux verticales lors de leur mise en ouvre,

    - et le dit panneau extérieur (3) des parois (a' - a'') étant disposé en quinconce par rapport au panneau intérieur (1).


     
    2. Ensemble d'éléments isolants préfabriqués pour parois de mur conforme à la revendication 1 caractérisé par le fait :

    - que sur l'une des parois (a') le panneau extérieur (3) est prolongé au-delà de l'extrémité dudit panneau intérieur (1) par le matériau isolant (2),

    - et que sur le paroi opposée (a'') le panneau extérieur (3) s'arrête en deçà du matériau isolant (2) du panneau intérieur (1), ce qui permet le raccordement des parois opposées : le premiére paroi (a') avec la deuxiéme paroi (a'') d'un autre élément modulaire (A).


     
    3. Ensemble d'éléments isolants préfabriqués pour parois de mur conforme à la revendication 1 caractérisé par le fait que lesdits panneaux extérieurs (3) et panneau intérieur (1) des parois (a') et (a'') de l'élément isolant préfabriqué (A) en forme de "L" pour paroi comportent sur leurs chants verticaux opposées de raccordement :

    - sur un chant des rainures (1'',3''),

    - et sur le chant opposé, des saillies de renfort en acier (1') permettant un assemblage par chevilles avec d'autres éléments.


     
    4. Ensemble d'éléments isolants préfabriqués pour parois de mur conforme à la revendication 1 caractérisé par le fait que lesdits panneaux extérieurs (3) et panneau intérieur (1) des parois (a') et (a'') comportent au bord inférieur de leur surface (1-3) une rainure coudée (f) pénétrant horizontalement dans l'élément et sortant verticalement de la base de l'élément pour correspondre à une rainure (f') pratiquée dans une fondation, formant ainsi une cavité continue (f, f') où une cheville (4) pout être introduite, et où du béton (g) peut être coulé pour fixer l'élément de structure de la paroi sur ladite fondation.
     
    5. Ensemble d'éléments isolants préfabriqués pour parois de mur conforme à la revendication 1 caractérisé par le tait que ledit élément rectangulaire plat (B) comprend un panneau pour élément de plancher dont les bords opposés comportent une marche longitudinale (8) d'un côté et une languette longitudinale (9) de l'autre.
     




    Drawing