EP4368790A1 - Bausystem zur herstellung von wänden - Google Patents

Bausystem zur herstellung von wänden Download PDF

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Publication number
EP4368790A1
EP4368790A1 EP23206429.5A EP23206429A EP4368790A1 EP 4368790 A1 EP4368790 A1 EP 4368790A1 EP 23206429 A EP23206429 A EP 23206429A EP 4368790 A1 EP4368790 A1 EP 4368790A1
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EP
European Patent Office
Prior art keywords
panel
uhpc
uhpc panel
formwork
panels
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.)
Pending
Application number
EP23206429.5A
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English (en)
French (fr)
Inventor
Guillaume LAMOUREUX
Romain RICCIOTTI
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.)
Lamoureux & Ricciotti
Original Assignee
Lamoureux & Ricciotti
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 Lamoureux & Ricciotti filed Critical Lamoureux & Ricciotti
Publication of EP4368790A1 publication Critical patent/EP4368790A1/de
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
    • E04B2/68—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete made by filling-up wall cavities

Definitions

  • the present invention applies to the general technical field of building. More specifically, it concerns a construction system adapted to the construction of walls for collective housing.
  • the first human constructions integrated different materials, the main constituent of which was earth.
  • earth was associated with other components, often local and natural (e.g. straw) as well as minerals (e.g. stones).
  • One of these materials known as rammed earth, uses raw earth compacted in formwork or sheeting. To create an adobe wall, the earth is thrown into a formwork in thin layers of 10 cm to 1m, then compacted manually in this formwork using a pestle. Rammed earth thus makes it possible to obtain an earth-based wall which is sufficiently porous to allow ideal breathing of the premises it delimits.
  • rammed earth like all known earth-based materials, is very sensitive to erosion due to its porosity and it therefore only offers very limited resistance over time.
  • the inventors have now developed a new process for manufacturing collective housing, ERP (Public Establishment) or industrial buildings, the elements of which this time actively participate in supporting the structural constraints of construction.
  • ERP Public Establishment
  • the specificities of this construction system allow the use of any type of concrete or mortar for the construction of collective housing, in particular the use of mortars or concretes of lower resistance (e.g. site concrete) and mortars or concretes " low carbon”, without compromising the sustainability of the housing obtained and also making it possible to obtain housing whose cost is comparable to that of current collective housing.
  • the construction system according to the invention thus allows the use of mortars using the excavated soil from the site such as those described in the patent applications FR3108055 Or FR3108054 . If such mortars make it possible to considerably improve the carbon footprint of a construction site, their implementation characteristics have until now confined them to individual housing only, thereby excluding their use in collective housing.
  • the construction system according to the invention is based on the industrial prefabrication of UHPC load-bearing elements, able to accommodate such mortar or earth concrete, as well as insulating panels, which prefabricated load-bearing elements make it possible to guarantee rapid execution on site as well as optimization of construction costs.
  • the supporting element is finally “embedded” within the wall, between insulating materials, which eliminates thermal bridges.
  • the mortar or concrete used is confined by the reinforced concrete chains and the UHPC panel to absorb only the heavy vertical loads: permanent and operating loads.
  • this mortar or concrete used only works in compression, which allows the use of mortars or concretes of lower strength (e.g. site concrete) and in particular “low carbon” mortars or concretes.
  • the process according to the invention potentially makes it possible to pour the structural mortar or concrete and the facade cladding at once.
  • each side upright of the UHPC panel shares, with at least one formwork, at least one assembly means; so as to obtain after their assembly a free volume in which to sink at least one vertical post.
  • the assembly of two UHPC panels as described previously which assembly corresponds to that of one of their side uprights, also makes it possible to obtain a free volume in which to sink at least one vertical post. In this way, the assembly of two UHPC panels together can also constitute a constructive system.
  • This construction system allows the construction of walls on several floors, easily and economically, without the need for a preliminary and tedious step of creating mortar or concrete pillars.
  • the panels are manufactured outside the site and arrive there to be directly installed. During their installation, the assembly of the panels with the formwork of the construction system allows the vertical support posts to be cast.
  • the constructive system according to the invention further comprises: 3) at least one system for fixing said at least one crosspiece defining the base of the UHPC panel with the support surface of the building on which it rests.
  • a second object relates to the use of such a constructive system for the production, in mortar or concrete, preferably in mortar or concrete of lower resistance and, particularly preferably, in “low carbon” mortar or concrete, of at least one wall of a dwelling, preferably at least one wall of a collective dwelling, an ERP building (Public Establishment) or an industrial building.
  • ERP building Public Establishment
  • a fourth object of the invention relates to an ultra-high performance fiber-reinforced concrete panel (UHPFRC) as described above.
  • UHPFRC ultra-high performance fiber-reinforced concrete panel
  • a fifth object of the invention relates to the use of such an ultra-high performance fiber-reinforced concrete panel (UHPFRC) for the production, in mortar or concrete, preferably in mortar or concrete of lower resistance and, in a manner particularly preferred, in “low carbon” mortar or concrete, of at least one wall of a dwelling, preferably of at least one wall of a collective dwelling, of an ERP building (Establishment Receiving the Public) or 'an industrial building.
  • UHPFRC ultra-high performance fiber-reinforced concrete panel
  • formwork we mean a part which allows the casting of a vertical post which will be associated with at least one of the two side uprights of a UHPC panel.
  • this formwork is an elongated profile having a U-shaped, C-shaped, open square or open rectangle shape.
  • Said formwork can be made of any suitable material, whether metal (e.g. steel or aluminum) or plastic (e.g. PVC, polypropylene or polyethylene).
  • metal e.g. steel or aluminum
  • plastic e.g. PVC, polypropylene or polyethylene
  • This formwork advantageously has a length of between 250 and 400 cm, preferably it has a length identical to the height of the UHPC panel to facilitate their assembly.
  • This formwork has a width greater than or equal to that of the lateral upright of the UHPC panel with which it is associated, preferably a greater width.
  • the width of said formwork is between 11 and 80 cm, preferably between 16 and 50 cm.
  • the assembly of the formwork with the side upright of the UHPC panel is carried out by interlocking and, particularly preferably, by overlapping the surfaces of the formwork on those of the side upright.
  • the overlapping solution is particularly advantageous in that it makes it possible to simultaneously contribute to the sealing of the free volume into which the vertical post formed by this assembly will flow.
  • said formwork and said side upright of the UHPC panel each comprise at least one complementary element of an assembly forming at least one positioning means.
  • Such a positioning means can thus take the form of a projection (e.g. tongue or stud) present on said formwork or said lateral upright of the UHPC panel, which is complementary to a groove present on the other part of the construction system.
  • a projection e.g. tongue or stud
  • the projection is present on the side upright of the UHPC panel.
  • the length of this projection is chosen so that it acts as a support (like the spacer mentioned subsequently) for the formwork panel.
  • Ultra-high performance fiber-reinforced concrete means concrete as defined by the AFNOR NF P18-470 standard. These are concretes whose compressive strength exceeds 130 MPa, preferably 150 MPa, and whose flexural strength is approximately 35 MPa. Such concretes have specific formulations which are known to those skilled in the art and which incorporate fibrous fillers.
  • fibrous fillers capable of being integrated into such formulations, mention may be made of metal fibers, polymer fibers, glass fibers or even carbon fibers.
  • the ultra-high performance fiber-reinforced concrete (UHPFRC) panel has a thickness of between 20 and 50 mm between its two main surfaces, preferably between 30 and 40 mm.
  • the UHPC panel can be perforated so as to have a reduced weight, but without compromising its solidity.
  • the surface area of the day or all of the days operated in the UHPC panel is less than or equal to 50% of the total surface area of the UHPC panel, preferably less than or equal to 40% of the total surface area of the panel.
  • the days are organized so that the panel can form in its center a Connecting Rod - Tie Rod type structure, which structure is similar to a Saint Andrew's cross inscribed in the frame formed by the vertical and horizontal UHPFRC chains. . The whole ensures the bracing of the entire building.
  • the UHPC panel can also have at least one opening, in particular for receiving a window or a door.
  • the side uprights are positioned on the main face corresponding to the interior surface of the housing.
  • the side uprights of the UHPC panel advantageously have a support/support function for the floor of the upper floor.
  • the at least two side uprights of said UHPC panel advantageously stop before the upper end of the UHPC panel.
  • said height of said side uprights is at least 15 cm lower than that of the UHPC panel, preferably 20 to 30 cm lower than that of the UHPC panel.
  • the top of the UHPC panel will include, in the height from which the side uprights are absent, at least one projection or at least one groove in the direction of the width of the UHPC panel.
  • the function of this projection or groove is to facilitate the association of the floor with the UHPC panel and therefore to facilitate the transfer of horizontal forces from the floor to the UHPC panel.
  • the profiles of the side surfaces are symmetrical to each other with respect to a central longitudinal axis of the UHPC panel.
  • each side upright of the UHPC panel forms, with the UHPC panel, an elongated profile having a U-shaped, C-shaped, open square or open rectangle shape.
  • each side upright of the UHPC panel has an interior surface symmetrical to the interior surface of the formwork with which it is associated. After pouring the post and removing the formwork, the side upright of a new UHPC panel can thus be associated with said post.
  • each at least two side uprights of said UHPC panel comprises at least one groove or at least one projection (e.g. tongue) in the direction of the height of the UHPC panel and which is positioned towards the inside of the panel and/or towards the exterior of the UHPC panel, preferably at least one groove or at least one projection positioned towards the inside of the UHPC panel.
  • a projection or groove makes it possible to facilitate the association between the UHPC panel and the mortar (and possibly concrete) which would be poured or projected onto it.
  • the crosspiece defining the base of the UHPC panel is intended to improve the stability of the UHPC panel once it is in place.
  • the crosspiece defining the base of the UHPC panel is particularly interesting in that it allows the UHPC panel to be associated with the support surface of the building on which it rests.
  • a support surface conventionally constitutes a sole or a slab.
  • the constructive system according to the invention further comprises 3) at least one system for fixing said at least one crosspiece defining the base of the UHPC panel with the support surface of the building on which it rests.
  • Such systems for fixing said at least one crosspiece to the supporting surface of the building are well known to those skilled in the art and can take multiple forms, whether in the form of liquid fixing (e.g. glue or adhesive mortar). or in the form of mechanical fixation (e.g. mechanical anchor).
  • liquid fixing e.g. glue or adhesive mortar
  • mechanical fixation e.g. mechanical anchor
  • crosspiece defining the base of the UHPFRC panel can be pre-drilled to facilitate the implementation of said 3) at least one fixing system.
  • the UHPC panel also includes chains and/or sockets to facilitate lifting and handling of the UHPC panel.
  • insulating panel we mean a panel made of insulating material which can be of mineral origin (e.g. rock wool or glass wool), of plant origin (e.g. hemp panel, straw panel, wood wool , cotton wool, cellulose wadding panel), or even of synthetic origin (e.g. expanded polystyrene or extruded polystyrene).
  • mineral origin e.g. rock wool or glass wool
  • plant origin e.g. hemp panel, straw panel, wood wool , cotton wool, cellulose wadding panel
  • synthetic origin e.g. expanded polystyrene or extruded polystyrene
  • Said insulating panel is of a size suitable for covering the surface of the first main face or the second main face of the UHPC panel.
  • the UHPC panel can receive an insulating panel on each of these two main faces.
  • the thickness of the insulating panel depends on the insulating material used and the desired performance. Typically, the thickness of the insulation board will be between 5 and 30 cm.
  • fixing plugs for insulation sometimes called insulation plugs or insulation plugs
  • fixing points which are cast in concrete
  • insulating fixings or even screws or threaded rods associated with washers, washers, rosettes, or any other perforated or tapped plate to ensure the maintenance of the insulating panel.
  • insulation panel as well as the UHPFRC panel can be, independently of each other, pre-drilled, or not, to facilitate the implementation of the fixing system.
  • the UHPC panel will preferably include at least one housing positioned on one of its two main faces, which housing will be through or not and which can accommodate such a fixing system.
  • Such a housing can thus accommodate a threaded insert or a fixing pin.
  • Said formwork panels can be made of any suitable material and, preferably, of metal (e.g. steel or aluminum).
  • Said two formwork panels have dimensions adapted to the formwork of the UHPC panel.
  • said two formwork panels have a height and width equal to or slightly greater than those of the UHPC panel with which they are associated.
  • Said spacer advantageously takes the shape of a tube or a cone (e.g.: formwork cone) whose length corresponds to the thickness that the wall will have after pouring the mortar or concrete between the two formwork forms.
  • a tube or a cone e.g.: formwork cone
  • This spacer can be made of any suitable material, whether metal (e.g. steel or aluminum) or plastic (e.g. polypropylene or polyethylene).
  • said spacer will have a length of between 15 and 60 cm, preferably between 20 and 50 cm.
  • the opening in the middle of the spacer allows the passage of at least one means which will allow the association/enhancement of the two formwork panels between them.
  • the UHPC panel comprises at least one orifice allowing the passage of the spacer.
  • the spacer will be able to pass through the UHPC panel so that each of its ends can be in contact with one of the two formwork panels.
  • said means will take the form of a threaded rod, preferably made of steel (e.g. stainless steel), and two wing nuts for each of its two ends.
  • steel e.g. stainless steel
  • low-carbon mortar or concrete we mean a mortar or concrete with a reduced, or even zero, proportion of cement. Now, such a mortar will incorporate a binder including slag or metakaolin.
  • slag we mean the slag formed during melting or elaboration metal by liquid means. It is a mixture composed essentially of silicates, aluminates and lime with various metal oxides with the exception of iron oxides.
  • metakaolin we mean the product of a calcination of kaolin and/or kaolin clay.
  • the binder comprises slag and, optionally, lime.
  • the binder will be able to integrate other components to modulate the setting of the low carbon mortar such as a crystallizer.
  • the term low-carbon mortar or concrete means a mortar or concrete which incorporates earth which may come from earthworks or excavation operations (quarry) or even consist of crushed deconstruction materials (e.g. concrete, plaster , stone or even mortar).
  • said low-carbon mortar or concrete incorporates soil from earthworks or excavation operations which, ideally, will be that of the site on which the housing is built. Note that said land does not naturally come from sand quarries or aggregate quarries (virgin aggregates).
  • Such lands may therefore present a very great diversity of nature depending on the site from which they come. We can thus find soils incorporating gypsum, silt, limestone, silica, clay or even their mixture.
  • soils that have undergone at most one pretreatment by grinding, sorting (e.g. according to color), sieving and/or drying before being mixed with the other components of the earth mortar.
  • the low-carbon mortar or concrete used also includes a proportion of fibers.
  • fibers we mean both synthetic fibers (e.g. polypropylene fibers, glass fibers, carbon fibers, etc.) and natural fibers (e.g. hemp), which fibers can be in any shape (elongated or circular). , preferably in elongated form.
  • the low-carbon mortar or concrete used is that described in the patent applications FR3108055 Or FR3108054 .
  • THE figures 1 And 2 show, in perspective, a first embodiment of a construction system according to the invention in which a UHPC panel (1) is assembled with two formworks (2).
  • the base (11) of the UHPC panel (1) rests on a strip sole (3) and is fixed to it by means of mechanical dowels (6).
  • the side uprights (12) of the UHPC panel (1) are each assembled with a formwork (2) so as to form a free volume in which a metal frame (4) is positioned, awaiting the casting of a post ( 5).
  • This assembly is facilitated by at least one assembly means (121, 21) comprising at least one stud (121) on each upright (12), which stud (121) is complementary to a groove (21) present on each formwork (2).
  • this stud (121) also acts, in this embodiment, as a support for the formwork panels. Note that the side uprights (12) do not go all the way to the top of the UHPFRC panel (1) so that they can subsequently accommodate a floor that they will support.
  • the UHPC panel (1) includes openings (13) which are positioned so as to lighten the weight of the panel without significantly affecting its structural properties.
  • FIG. 3 is a top view of the assembly between the UHPC panel (1) and the two formworks (2) showing the overlap of the walls of each formwork (2) on those of the lateral upright (12) of the UHPC panel (1) of so as to allow their assembly.
  • each formwork (2) forms with each side upright (12) of the UHPC panel (1) a volume whose square section will accommodate a post (5).
  • This figure also shows a tab (122) in the direction of the height of the UHPC panel and which is positioned towards the inside of the panel, which tab makes it possible to facilitate the association between the UHPC panel and the mortar or concrete which will be cast or projected onto it.
  • THE figures 4 And 5 show views along axes F1, F2 and F3 of the Figure 3 .
  • FIG. 6 represents a second embodiment of a constructive system according to the invention in which UHPC panels (1) are assembled together at their side uprights (12), which assembly allows (also) to form a free volume into which a post (5) is cast.
  • the Figure 7 shows the step of fixing an insulating panel (15) to each UHPC panel (1) using fixing means taking the form of threaded rods (161) and wing nuts associated with stainless steel plates (162). Simultaneously, the threaded rods (161) are held to each UHPC panel (1) by means of threaded ends (163) positioned in the latter.
  • the figure 8 shows the installation of the formwork (17), the waterproof spacers (18) and the control means taking the form of threaded rods (191) and wing nuts (192).
  • a reinforcement can be positioned on one and/or the other face of each UHPC panel (1).
  • FIG 8 shows the positioning of a metal mesh (TM) on the insulating panel (15).
  • the mortar or concrete (preferably the mortar or low carbon concrete (MBC)) can be poured between the formwork (17) as shown in Figure 9 .
  • FIG. 10 shows the step which consists, once the mortar or concrete (MBC) has been poured until reaching the upper end of the side uprights (12) and left to dry for the necessary time, the step of laying the floor ( PL) and its association with expectations (4) so as to unite all the supporting elements.
  • the formwork can be removed and it is possible to initiate the construction stage of the upper wall.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Panels For Use In Building Construction (AREA)
EP23206429.5A 2022-11-09 2023-10-27 Bausystem zur herstellung von wänden Pending EP4368790A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2211686A FR3141708A1 (fr) 2022-11-09 2022-11-09 Système constructif pour la réalisation de murs

Publications (1)

Publication Number Publication Date
EP4368790A1 true EP4368790A1 (de) 2024-05-15

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Application Number Title Priority Date Filing Date
EP23206429.5A Pending EP4368790A1 (de) 2022-11-09 2023-10-27 Bausystem zur herstellung von wänden

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EP (1) EP4368790A1 (de)
FR (1) FR3141708A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2211686A1 (de) 1972-12-22 1974-07-19 Ricoh Kk
FR2488930A1 (fr) * 1980-08-19 1982-02-26 Kamal Ahmed Procede et ensemble d'elements prefabriques auto-coffrants et auto-bloquants pour l'erection d'un batiment a chainage continu incorpore et a armature integree et batiments obtenus
FR2950638A1 (fr) * 2009-09-30 2011-04-01 Alain Vidaillac Systeme constructif pour batiments
EP3170947A1 (de) 2015-11-23 2017-05-24 Vigier, Romuald Doppelwand für den bau eines gebäudes, und herstellungsverfahren dieser doppelwand
WO2020096525A1 (en) 2018-11-08 2020-05-14 Lin Wenjun Vincent Prefabricated profiled wall and fabrication, assembly thereof
FR3108055A1 (fr) 2020-03-13 2021-09-17 Norper Mortier à base de terre

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2211686A1 (de) 1972-12-22 1974-07-19 Ricoh Kk
FR2488930A1 (fr) * 1980-08-19 1982-02-26 Kamal Ahmed Procede et ensemble d'elements prefabriques auto-coffrants et auto-bloquants pour l'erection d'un batiment a chainage continu incorpore et a armature integree et batiments obtenus
FR2950638A1 (fr) * 2009-09-30 2011-04-01 Alain Vidaillac Systeme constructif pour batiments
EP3170947A1 (de) 2015-11-23 2017-05-24 Vigier, Romuald Doppelwand für den bau eines gebäudes, und herstellungsverfahren dieser doppelwand
WO2020096525A1 (en) 2018-11-08 2020-05-14 Lin Wenjun Vincent Prefabricated profiled wall and fabrication, assembly thereof
FR3108055A1 (fr) 2020-03-13 2021-09-17 Norper Mortier à base de terre
FR3108054A1 (fr) 2020-03-13 2021-09-17 Norper Mortier à base de terre

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