EP0383112B1

EP0383112B1 - A set of "L" shaped prefebricated insulating wall modules and a rectangular flat module for building structures

Info

Publication number: EP0383112B1
Application number: EP90102089A
Authority: EP
Inventors: Sisto Capretta; Lucio Bollotto
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-02-16
Filing date: 1990-02-02
Publication date: 1993-10-27
Anticipated expiration: 2010-02-02
Also published as: DE69004116D1; EP0383112A1; IT1234343B; ATE96488T1; IT8982510A0

Abstract

A "L" shaped prefabricated insulating wall module for building structures comprising two perpendicular connected walls, that in association with a floor module allow realization of buildings. Each wall includes one external reinforced concrete panel (3) and an internal reinforced concrete panel (1), said panels being spaced apart and interconnected by transversal connecting steelrods and in the respective interspace an insulating foam material (2) is enclosed, net-work electric wiring and waterpiping being in it integrated. Said "L" module being associated with a rectangular flat module to be utilized as prosecution in walls and as floor component.

Description

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

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.
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.

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.
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.
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.
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).
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

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).
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).
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.
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.
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).