Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B7/00—Moulds; Cores; Mandrels
  • B28B7/28—Cores; Mandrels
  • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B1/00—Producing shaped prefabricated articles from the material
  • B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
  • B28B1/40—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding
  • B28B1/42—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding using mixtures containing fibres, e.g. for making sheets by slitting the wound layer
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B7/00—Moulds; Cores; Mandrels
  • B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49616—Structural member making
  • Y10T29/49623—Static structure, e.g., a building component

Definitions

• the invention relates to a flange intended to form part of a large self-supporting rigid hollow body itself intended for the production of constructions, a method of manufacturing such a hollow body by means of such flanges, and an installation for the implementation of this process.
• EP 0252072 discloses a method and a device for manufacturing hollow bodies made of reinforced concrete by continuous fibers. According to this process, the fibers are impregnated with water, the fibers are passed through a cement milk, the fibers are wound under tension in at least one layer, on a layer consisting of a mixture of cement and chopped fibers , the concrete having been prepared from a siliceous material having a fine particle size, and at least partially curing the resulting composite product before removing it from said mandrel.
• the device comprises at least two tanks for the impregnating baths of fibers that can move in a direction parallel to the axis of the mandrel, a tilting arm provided with a device for spraying the mixture of cement and chopped fibers and allowing apply the fibers under tension on the mandrel coated with cement.
• the hollow body consists of a prestressed concrete reinforced with fibers, said concrete consisting of a siliceous material having a fine grain size, and having a fiber content of up to 10% by weight and more of the final product obtained.
• GB 2068820 discloses a non-planar body reinforced with glass fibers. This body is tabular or U-shaped or pseudo U. It has successive superimposed layers. The body is first made flat and then conformed as desired in a shaper.
• BE 1010457A4 discloses a method of manufacturing hollow or flat bodies of cement mortar reinforced with fibers impregnated with acrylic polymers.
• a flange is provided at each of the ends of the mandrel, the continuous fibers are wound around the mandrel in the form of a fabric or mesh forming a warp and weft mesh, impregnated with preferably dried or polymerized polymers, preferably with a mortar. cement or any other binder.
• EP 1433581 discloses a structure and a corresponding manufacturing facility. This is to obtain a uniform application of the curable composition so that the product has a homogeneous surface reducing the risk of micro-cracks and increasing the quality and strength. In addition, it is proposed to implement natural fibers.
• WO2006130047 discloses a construction module manufacturing facility which comprises a rotary platform on which is installed a template equipped with flanges, coils with continuous and infinite fiber, a device for the application of hardener, the jig being made so as to be compressed and the flanges to be removable.
• the hardener application device is fixed on a mobile carriage installed on a ruler and consists of a guide on which is fixed a hose with a hardener feed nozzle, an oscillating block fixed on the rule ensuring at the nozzle a constant perpendicularity with the surface of the template and an equidistance to it and a counterweight.
• the fiber of the coils is an alkali-resistant fiber and there is provided a binder supply device on the fiberglass wound on the template.
• US 4592674 discloses a manhole having end portions of conjugate forms.
• Document FR 2 282 979 describes a method and a machine for manufacturing three-dimensional modules. There is provided a rotating die forming a male mold. This document does not disclose that the module includes annular flanges.
• the invention takes advantage of the technique of the known field of winding fibers on and around a mandrel while depositing thereon a coating material and strength based on concrete or the like able to be deposited at the same time. fluid state and then harden, so as to form a hollow body of concrete or the like comprising a thin wall of generally cylindrical shape with respect to an axis and two end flanges directed outwardly, forming a unitary assembly having a space internal vacuum with two end openings, such body being intended for the realization of constructions.
• the invention is particularly aimed at making this technique truly operational.
• the invention aims at:
• the invention aims ultimately to the realization of modular constructions that are:
• the invention relates to a concrete flange, rigid, annular, intended to be part of a large freestanding rigid hollow body for the realization of constructions comprising a thin wall of general shape cylindrical fiber-reinforced concrete reinforcing and reinforcing material and two such outwardly directed end flanges, characterized in that it comprises:
• a heel extending in axial direction from a transverse face of the main part, internal radial dimension identical or similar to the radial space inside the main part, external radial space reduced compared to the outer radial size of the main part, whose annular thickness decreases from the transverse face of the main part from which it extends to its opposite free end, and whose outer face is provided with reliefs anchoring of embedding material and strength based on reinforced concrete with fibers.
• the holes of the fastening means of the flanges are oblong and thus form position adjustment means.
• the invention relates to a method of manufacturing a large-sized, self-supporting rigid hollow body intended for the production of constructions comprising two outwardly directed end flanges and a generally cylindrical thin wall with respect to an axis of a fiber reinforced concrete encapsulation and resistance material, wherein:
• a mandrel forming an internal jig for the hollow body, flanges, continuous fibers and coating material and a concrete-based resistor capable of being deposited in the fluid state and then of hardening are placed in position; on a table adapted to be driven to pivot about its vertical axis, the mandrel with its vertical or substantially vertical axis, a lower flange around the mandrel towards its lower part and an upper flange around the mandrel towards its upper part,
• the mandrel and the flanges are driven and the fibers are wound around the mandrel with the coating and resistance material, forming the desired number of layers for the desired thickness,
• the method comprises a step in which the rotary table is driven and the fibers are wound around and on the part of the mandrel located between the two flanges, with the coating and resistance material, forming a certain number of layers for a desired thickness, followed by a step in which one or more layers of a thermal and / or phonic insulating material are placed on the outer face of the previously formed layers, followed by a step in which one drives the rotary table and wraps the fibers around and on the outer face of the layer (s) of the thermal and / or sound insulating material and between the two flanges, with the coating and resistance material forming a number of layers for a desired thickness.
• the fibers are unique or in mesh.
• a hollow reserve box open towards the outer face of the mandrel and closed elsewhere, is placed and maintained for the duration of manufacture on the outer face of the mandrel at any desired location.
• the cylindrical wall of the hollow body comprises or forms or participates in forming housing means, the latter being intended for circulation members and / or electrical distribution, or electronic, or liquid or gaseous fluid.
• the invention relates to an installation for implementing the method which has just been described, comprising:
• a suitable table also adapted to receive a mandrel and to be driven to pivot about its vertical axis by drive means
• the mandrel presents, in transverse cross section, a general square or rectangular shape, pseudo squared or pseudo rectangular, trapezoidal or pseudo trapezoidal with rounded or broken corners, the table comprises on its upper face locking means in position of the lower flange; and sliding guide means of the bodies produced,
• the mandrel is deformable in a small path between an expanded state for producing the hollow body and a retracted state for the relative extraction of the body from the mandrel and the installation comprises means for maneuvering said deformation. and means for controlling said operating means.
• the walls of the mandrel are hinged and deformably arranged between an expanded state in which the walls are flat and a retracted state in which the walls form a flattened V between them.
• the mandrel comprises an inner resistance structure and an outer deformable structure, means for inflating the outer structure to bring it into an expanded state, the deformable structure being in a retracted state in which the inflation means are inactive.
• FIG. 1 is a perspective view of the exterior of a possible embodiment of FIG. construction according to the invention, in this case a western-style dwelling house
• FIG. 1 is a perspective view of the exterior of a possible embodiment of FIG. construction according to the invention, in this case a western-style dwelling house
• FIG. 2 is a perspective view from the outside of another possible constructional embodiment made in accordance with the invention in which visible on the one hand two constituent hollow bodies juxtaposed by their flanges and placed along a common axis, on the other hand an occultation wall of the end opening of one of the hollow bodies
• Figure 3 is a perspective view of the exterior of a possible embodiment of a set of hollow bodies constituting a construction, juxtaposed and superimposed
• Figure 4 is a perspective view of the outside of a possible embodiment of a self-supporting rigid hollow body according to the invention allowing the realization of constructions, the axis of the hollow body being horizontal, as in the construction
• - Figures 5 A and 5B are two schematic sectional views through a median transverse plane of hollow body according to the invention; two possible embodiments, with a pseudo rectangular shape in FIG.
• FIGS. 6A and 56B are two schematic cross-sectional partial views, through a median transverse plane, of hollow body according to two possible embodiments, showing a "broken" angle in FIG. 6A and a rounded angle in FIG. 6B
• FIG. is a diagrammatic sectional view through an axial plane of a possible embodiment of flange entering the embodiment of hollow body
• Figure 8 is a schematic partial view in section through an axial plane, showing the heel of a flange and the thin wall of the hollow body, which is homogeneous
• FIG. 9 is a diagrammatic partial view in section through an axial plane showing the thin wall of the hollow body, the latter being heterogeneous and including a medial portion of insulation
• FIG. 10 is a partial diagrammatic view, in section through an axial plane, showing the rigid association of two adjacent flanges of two juxtaposed hollow bodies
• FIG. 11 is a partial diagrammatic view, in section through an axial plane, of FIG. t the rigid association of two adjacent flanges of two superimposed hollow bodies
• FIG. 12 is a schematic view from above of two superimposed hollow bodies whose flanges are in contact, a space being provided between the two hollow bodies on the outside of each of them
• Figure 13 is a schematic partial view in section through a median transverse plane of a possible embodiment of hollow body showing the presence of a floor wall and a ceiling wall
• Figure 14 is a schematic partial view in section through a vertical axial plane of a possible embodiment of hollow body with a floor wall, a ceiling wall and a concealment wager of the end opening of the hollow body
• FIG. 12 is a schematic view from above of two superimposed hollow bodies whose flanges are in contact, a space being provided between the two hollow bodies on the outside of each of them
• Figure 13 is a schematic partial view in section through a median transverse plane of a possible embodiment of hollow body showing the presence of a floor wall and a ceiling wall
• - the figure 14 is a schematic partial view in section through a vertical axial plane of a possible embodiment of hollow body with a floor wall
• FIG. 15 is a diagrammatic partial view in cross section through a transverse plane illustrating the provision of a recessed reserve in the cylindrical wall of a hollow body and access thereto from the outside of the hollow body;
• Figure 16 is a schematic view in section through a vertical plane illustrating a table of the installation according to the invention, the mandrel and the flanges involved in the production of a hollow body, in combination with the thin cylindrical wall
• FIGS. 17A and 17B are two schematic views in cross-section of two possible embodiments of a mandrel, namely a mandrel having articulated walls with respect to FIG. 17A and a mandrel comprising a deformable inflatable structure with regard to FIG. 17B
• FIG. 18 is a schematic view from above, an installation for implementing the method.
• a large freestanding rigid hollow body 1 is intended for the realization of self-supporting constructions 2 such as buildings for individual or collective use, whose destination is the dwelling or any other destination such as, for example, an industrial, commercial, administrative, storage, storage, circulation or other place.
• Such a building is intended to be permanent or temporary.
• the construction can also be a civil engineering work, such as canal, conduit, bridge ...
• Such a construction 2 comprises, depending on the case, a single hollow body 1 or several for the most important constructions. It comprises, where appropriate one or more occulting walls 3 may include one or more openings 3a, such as the opening of a door or a window or a passage.
• hollow body 1 allows the realization of an infinite variety of constructions 2, both by their nature and their layout, and finally their aesthetics.
• Such a construction 2 it can be achieved, that is to say the body or bodies 1 set up, without the need to make foundations, which, combined with the speed of assembly, makes the invention well adapted to the case where constructions 1 must be carried out urgently.
• the hollow body 1 comprises a thin wall 4 of generally cylindrical shape with respect to an axis 5 and two end flanges 6, directed outwards.
• the hollow body 1 is in one piece and has an internal empty space 7 with two end openings 8 in which the flanges 6 are located.
• Such a hollow body 1 is made of coating material and strength based on concrete or the like m armed with fibers f.
• a flange 6 has a generally annular shape of axis 5, corresponding to or adapted to the shape of the cylindrical wall 3.
• the flange 6 comprises a main part 9 and a heel 10 of a single piece of manufacture.
• the main part 9 is generally flattened hollow cylinder and is intended to be visible in the hollow body 1 once made.
• the heel 10 extends axially from a transverse face 11 of the main portion 9.
• the heel 10 is of identical internal radial size or close to the radial interior dimensions of Ia main part 9. Its external radial size is reduced compared to the external radial size of the main part 9.
• the heel 10 has an outer face 12 which is provided with reliefs 13 for attachment to the coating material and concrete-based resistor or the like reinforced by fibers constituting the cylindrical wall 4.
• the heel 10 has a decreasing annular thickness from the transverse face 11 of the main part from which it extends to its opposite free end 14.
• Such a flange 6 is, in the embodiment considered, made of rigid material such as concrete.
• Such a flange 6 comprises, in its main part 9, fixing means 15 in the form of holes adapted to cooperate with fasteners 16 by bolting or screwing.
• the fastening means 15 provided with the flanges 6, include position adjustment means such as oblong holes. This arrangement makes it possible to precisely adjust the relative position of two similar neighboring hollow bodies 1, juxtaposed in the extension of one another or the relative position of an occultation wall 3 with respect to the hollow body which supports it.
• the flanges 6 form, thanks and by their peripheral face 17 of the main part 9, projecting from the extrados 18 of the cylindrical wall 4, spacing means between the extrados 18 of two bodies hollow 1, similar and adjacent, in contact by their flanges 6 ( Figure 12). It follows the constitution between the two hollow body 1, a space 19 which is outside the said hollow body 1.
• the flanges 6 comprise or form or participate in forming removable fixing means of a hollow body handling member 1 during its manufacture, its movement, storage or assembly.
• Such fastening means may be in the form of openings.
• the cylindrical wall 4 of the hollow body 1 comprises or forms or participates in forming means 20 for housing for members 21 for circulation and / or electrical distribution, or electronic, or liquid or gaseous fluid but also means for housing means 22 of thermal insulation and / or sound.
• the space 19 between two hollow bodies 1 constitutes such means 20.
• These means 20 then consist of a passage between the extrados 18 of the cylindrical wall 4 and another exogenous wall located outside the hollow body 1 considered, to namely the extrados 18 of the cylindrical wall 4 of another neighboring hollow body.
• These means 20 may also consist of a hollow reserve 23 formed in the intrados 24 of the cylindrical wall 4.
• These means 20 may also consist of a passage formed between the intrados 24 of the cylindrical wall 4 and another exogenous wall located inside the hollow body.
• a wall is for example an inset wall 25 or a ceiling insert wall 26.
• the cylindrical wall 4 of the hollow body 1 comprises or forms or participates in forming means for positioning and / or fixing functional and / or decorative members intended to form part of the construction 2.
• Such functional and or decorative are not examples of furniture, furniture parts, household appliances or heating or circulation and / or electrical distribution devices, or electronic, or liquid or gaseous fluid.
• the intrados 24 of the cylindrical wall 4 of the hollow body 1 comprises or forms or participates in forming support means 27, projecting, for supporting an attached wall 25 adapted to form the ground (false floor) of the construction 2 or an added wall 26 adapted to constitute the (false) suspended ceiling of said construction 2.
• the hollow body 1 is made of micro concrete or the like m reinforced by continuous glass fibers or the like oriented cylindrically as the cylindrical wall 4, that is to say around the axis 5. Such fibers are arranged so as to have a slight prestress.
• the micro-concrete m and the fibers f are deposited in superimposed thin layers so as to reach the desired thickness calculated according to the desired performances.
• the concrete m is essentially able to withstand the stresses in compression, while the fibers f are essentially able to withstand the stresses in tension.
• the hollow body 1 has in its thickness a homogeneous structure, which means that it has a succession of layers of concrete m and fiber f, as indicated above.
• the hollow body 1 has, in its thickness, a heterogeneous sandwich-type structure comprising an outer portion 28 and an inner portion 29, each made of micro concrete or the like m reinforced by continuous glass fibers or analogous f_and one or more central parts 30, functional, mechanical reinforcement or protection, including thermal or phonic.
• the hollow body 1 has a transverse cross section of generally square or rectangular, pseudo square or pseudo rectangular (FIG. 5A), trapezoidal or pseudo trapezoidal shape (FIG. 5B), with "broken” angles (FIG. 6A). or rounded ( Figure 6B).
• two parts 4a of the cylindrical wall 4 facing each other and parallel to each other are intended to form the lower part and the upper part, respectively, of the construction 2 and are arranged horizontally or substantially horizontally.
• two other parts 4b of cylindrical wall 4 facing each other are intended to form two walls of the construction. These walls are, in the general case arranged vertically or substantially vertically.
• the flexibility of the invention makes it possible to envisage inclined walls, by means of hollow bodies 1 having a transverse cross section of generally trapezoidal or pseudo trapezoidal shape (FIG. 5B).
• the faces of the intrados 24 and the extrados 18 are flat or substantially planar.
• the hollow body 1 has an axial length and transverse dimensions of the order of 3 to 5 meters, and more specifically, an axial length of the order of 4.5 meters and transverse dimensions of the order of 3.3 and 4 meters respectively.
• the hollow body 1 is equipped, manufacturing, equipment or furniture items.
• Such a mandrel 31 has an outer face 32 whose intrados 24 of the hollow body 1 is complementary. Therefore, like the hollow body 1, the mandrel 31 has in cross section a generally square or rectangular, pseudo square or pseudo rectangular, trapezoidal or pseudo trapezoidal shape with rounded or broken corners 31a (FIGS. 17A and 17B). .
• the hollow body 1 when the hollow body 1 has just been manufactured, it is carried by the mandrel 31, it is appropriate to give the axis of the mandrel 31, the same numerical reference as that of the hollow body 1, namely the axis 5.
• Such mandrel 31 is rigid as a whole. To not be too heavy, since it must be moved, it is preferably substantially hollow and made of material as light as possible, for example wood.
• the mandrel 31 has an outer surface 32 with reduced adhesion on the lower surface 24 of the hollow body 1, so as to extract without much difficulty said hollow body 1 of the mandrel 31, by axial tension.
• either the mandrel 31 comprises an outer face 32 with reduced adhesion by its very nature or at the beginning of the manufacturing process the outer face 32 of the mandrel 31 is coated with a non-stick or sliding material, for example material-based fat.
• a mandrel 31 deformable in a small stroke sufficient to "peel off" the outer face 32 of the mandrel of the intrados 24 of the hollow body 1, between an expanded state for the realization of the hollow body 1 and a retracted state wherein at least a portion of the outer face 32 of the mandrel is spaced from the intrados 24 of the hollow body 1 (Figs. 17A and 17B).
• the installation comprises means 33 for maneuvering said deformation of the mandrel 33, as well as means for controlling said means 33 for maneuvering.
• the walls 34 of the mandrel 31 are articulated and deformably arranged between an expanded state in which the walls are flat (in phantom in the figure) and a retracted state in which the walls form between they flattened V (in solid lines, the deformation having been accentuated to make better understood).
• the mandrel 31 comprises an internal resistance structure 35 and an outer deformable structure 36, means 37 for inflating the outer structure 36 to bring it into an expanded state, the deformable structure being in a retracted state in which the inflation means 37 are inactive.
• Continuous fibers f and concrete-based coating and resistance material or the like are also available. This material m is capable of being deposited in the fluid-liquid or pasty state-and then hardening rather rapidly.
• the mandrel 31 is placed with its axis 5 arranged vertically or substantially vertically on a table 38 forming part of the installation.
• This table 38 is adapted to be driven to pivot about its vertical axis by drive means such as a motorized roller. It is appropriate, like the mandrel 31, that the table has the reference axis 5. This swiveling movement will occur later.
• a lower flange 6a is placed around the mandrel 31 towards its lower part 39.
• An upper flange 6b is placed around the mandrel 31 towards its upper part 40.
• the two heels 10 of the two flanges 6a and 6b are situated facing each other in the direction of the transverse median plane - in this case horizontal - of the mandrel 31.
• the lower flange 6a is placed on the table 38, while locking it in position relative thereto.
• the comprises on its upper face 41 locking means in position of the lower flange 6a, cooperating with complementary means of the flange 6a.
• it may be projections cooperating with holes of the flange 6a.
• the upper flange 6b is suspended from the upper part 40 of the mandrel 31, by means of, for example, brackets 42.
• a radial clearance 43 is provided between the outer face 32 of the mandrel 31 and the inner face of the flanges 6a and 6b.
• the table 38 is then rotated, thus the mandrel 31 and the flanges 6a and 6b. In doing so, the fibers f are wrapped around the part of the mandrel 31 located between the two flanges 6a and 6b, with the coating and resistance material m.
• the desired number of layers is formed for the desired thickness, corresponding to the expected strength performance.
• the hollow body 1 thus produced is extracted from the mandrel 31.
• the hollow body 1 dries and hardens, so that it can then be used for the construction of a construction 2.
• the method comprises firstly a step wherein the rotary table 38 is driven and the fibers f are wrapped around and on the part of the mandrel 31 between the two flanges 6a and 6b, with the coating material and resistance m forming a number of layers for a desired thickness.
• This step is followed by another step in which one or more layers of a thermal and / or phonic insulating material are placed on the outer face of the previously formed layers to produce the central layer (s) 30.
• This step is followed by another step in which the rotary table 38 is driven and the fibers f are wrapped around and on the outer face of the layer (s) of the thermal and / or phonic insulation material and between them.
• two flanges 6a and 6b, with the coating material and resistance m forming a number of layers for a desired thickness.
• the fibers f are "unique” or net. "Unique” means fibers that extend along a single direction, and do not form a net.
• the table 38 comprises guide means for sliding hollow bodies 1 made, such as rails formed in its upper face.
• the table 38 is arranged to be able to receive the mandrel and the hollow body 1 once made.
• support rollers 44 on which tracks 45 of the lower face of the table 38 roll.
• the installation further comprises means for winding the fibers f around the part of the mandrel 31 located between the two flanges 6a and 6b and means for depositing the coating and resistance material m by forming the number of desired layers for the desired thickness.
• These means may comprise drums for the fibers f, quenching tanks, tensioning systems, means for spraying or spraying the material. may be associated, in one embodiment, means for guiding the spraying means to cover the entire outer face of the mandrel 31, as well as the heels 10 of the flanges 6a and 6b.
• the installation comprises means for maintaining a constant or substantially constant spacing between the mandrel 31 and the means for depositing the coating and resistance material.
• the method is such that one places and holds fixed for the duration of manufacture - for example by means of a light adhesive, on the outer face 32 of the mandrel 31, at any desired location desired , a reserve box 46, hollow, open towards the outer face 32 of the mandrel and closed elsewhere.
• such hollow bodies 1 make it possible to produce an infinite variety of self-supporting constructions 2.
• the axis 5 of the cylindrical wall 4 is placed horizontally or substantially horizontally (FIGS. and 4).
• the upper and lower parts of the construction 2 - or of the construction part 2 made using the hollow body 1 - are formed by the two horizontal or substantially horizontal portions 4a facing each other of the cylindrical wall 4.
• the walls of the construction 2 - or of the construction part 2 made using the hollow body 1 - are formed by the two parts 4b, in particular vertical or substantially vertical, facing each other of the cylindrical wall 4.
• Such a construction comprises, in one possible embodiment, at least two hollow bodies 1 adjacent, juxtaposed or superimposed.
• the two hollow bodies 1 are juxtaposed with their coaxial axes 5, two flanges 6 of the two hollow bodies 1 facing each other and fixed rigidly to one another by fixing 16 cooperating with the fixing means 15 ( Figure 10).
• the two hollow bodies 1 are juxtaposed with their axes forming an angle between them, for example an angle equal to 90 ° or substantially 90 °, two flanges 6 of the two hollow bodies 1 being adjacent to each other. the other and rigidly associated with each other, directly or indirectly via connecting pieces.
• the two hollow bodies 1 are superimposed with their coaxial axes 5, the two flanges 6 of the upper hollow body 1 resting on the two flanges 6 of the hollow body 1 below, two flanges in contact being fixed rigidly one to the other by specific fixing means 48, such as H-shaped profiled pieces (FIG. 11).
• the construction 2 comprises insulation members 49 - with water, with air, with noise, with dust or other - interposed between two adjacent flanges 6 of two adjacent hollow bodies 1.
• a construction 2 may further comprise at least one occultation wall 3, provided where appropriate with one or more openings 3a.
• Such an occultation wall 3 is fixed to a flange 6 of a hollow body 1 of the construction 2.
• Such an occultation wall 3 constitutes, according to the embodiments, an outer wall (front) or an inner wall (partition). of construction 2.
• the construction 2 comprises a space 19 between two neighboring juxtaposed or superposed hollow bodies 1, whose peripheral faces 17 of the flanges 6 are in contact.
• Such a space 19 is either left empty or forms the housing means 20 for members 21 for circulation and / or electrical or electronic distribution, or for liquid or gaseous fluid, or for housing for thermal insulation means and / or phonic 22.
• the construction 2 is characterized by the combination between on the one hand the space 19 and on the other hand the cylindrical wall 4 of the hollow body 1 in that it comprises or forms or participates in forming the means 20 of housing.
• the construction 2 may comprise a wall 25, 26, attached to a hollow body 1, capable of constituting the ground or the suspended ceiling of the construction 2 - or of the building part 2 made using the body hollow 1.
• the construction comprises a space between the intrados 24 of the cylindrical wall 4 and the reported floor or ceiling wall 25, 26, said space forming housing means for the circulation members 21 and / or of electrical or electronic distribution, or of liquid or gaseous fluid and / or the housing of thermal and / or phonic insulation means 22.
• the pipes (water, gas) are assembled by electrofusion and there are provided connectors for electrical or electronic distribution members.
• one or more hollow bodies 1 are first produced which are brought from a situation where, for each of them, its axis 5 is vertical or substantially vertical - as is the case at the end of the manufacture of the hollow body 1 - to a situation where its axis 5 is horizontal or substantially horizontal - as is the case in the construction 2 -.
• one or more occultation walls 3 are provided.
• the construction site of the construction is prepared so that it is able to support one or more hollow bodies 1 having its axis or their axes placed horizontally or substantially horizontally, as indicated.
• the hollow body (s) 1 and the occultation wall (s) 3 are brought to the implantation site.
• the hollow body (s) 1 is put in place on the implantation site so that it (s) occupy (s) the desired location.
• the construction comprises a plurality of hollow bodies 1 and / or one or more occulting walls 3, their rigid fixation is ensured.
• the hollow body or bodies 1 is (are) put in place, without the need to make substantial foundations.
• anchoring of the hollow body or bodies 1 is performed on the implantation site.
• the pipes (water, gas) are assembled by electrofusion and the electrical or electronic distribution members by connectors.
• the pipes and the electrical or electronic distribution members are assembled in the space 19 between two adjacent juxtaposed or superposed hollow bodies 1 forming housing means 20 for circulation and / or distribution members 21.
• the insulating organ s - water, air, noise, dust or otherwise - between two adjacent flanges of two neighboring hollow bodies 1.
• members 21 for circulation and / or for electrical or electronic distribution or for liquid or gaseous fluid and / or for thermal and / or acoustic insulation means are placed in the space 19 formed between two hollow bodies. neighbors juxtaposed or superimposed, the peripheral faces 17 of the flanges are in contact.
• the cylindrical wall 4 is pierced in line with a hollow reserve 23 formed in the cylindrical wall 4 to allow communication with the right of this reserve 23 between the latter and the outside of the hollow body (FIG. 15). .
• FIG. 18 shows a schematic view from above of an installation for implementing the method.

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• Ceramic Engineering (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
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• Moulding By Coating Moulds (AREA)

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• 2007
  • 2007-11-06 FR FR0707777A patent/FR2923176A1/fr not_active Withdrawn
• 2008
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