EP3868970A1 - Vorgefertigte verbundplatte, insbesondere für den decken- oder wandbau, und entsprechendes herstellungsverfahren - Google Patents

Vorgefertigte verbundplatte, insbesondere für den decken- oder wandbau, und entsprechendes herstellungsverfahren Download PDF

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Publication number
EP3868970A1
EP3868970A1 EP21158505.4A EP21158505A EP3868970A1 EP 3868970 A1 EP3868970 A1 EP 3868970A1 EP 21158505 A EP21158505 A EP 21158505A EP 3868970 A1 EP3868970 A1 EP 3868970A1
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EP
European Patent Office
Prior art keywords
internal face
concrete plate
beams
section
profile
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.)
Granted
Application number
EP21158505.4A
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English (en)
French (fr)
Other versions
EP3868970C0 (de
EP3868970B1 (de
Inventor
Quentin KLEINDIENST
Jean-Bernard DERREY
Philippe Roux
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Apb2
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Apb2
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Application granted granted Critical
Publication of EP3868970C0 publication Critical patent/EP3868970C0/de
Publication of EP3868970B1 publication Critical patent/EP3868970B1/de
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B2005/232—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with special provisions for connecting wooden stiffening ribs or other wooden beam-like formations to the concrete slab
    • E04B2005/235—Wooden stiffening ribs or other wooden beam-like formations having a special form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated

Definitions

  • the present invention relates to a prefabricated composite slab for the construction in particular of floors or walls, comprising a wooden framework formed of a plurality of beams and a concrete plate connected to said framework by assembly means, said beams and said concrete plate having an internal face and an external face, while the assembly means comprise on the one hand a plurality of profiles substantially "I" made of wood or a material derived from wood, having two lateral faces opposites and four longitudinal faces two by two opposite, and on the other hand means for bonding each section to the internal face of a beam, the internal face of the concrete plate comprising a plurality of grooves extending parallel to each other , designed to accommodate a first end portion of a section, with an axis parallel to the axis of the section.
  • the invention also relates to a method of manufacturing such a slab.
  • mixed slabs are used in the construction of all types of buildings and can be integrated in apartment buildings or in buildings for professional use, regardless of the nature of the primary structure or carrier, the latter of which are designed for both horizontal, vertical and inclined structures.
  • mixed wood-concrete slabs are renowned for their excellent sound and thermal insulation properties and have the advantage of offering a good fire resistance allowing them to define an effective screen against the direct propagation of a possible fire from one area of a building to another.
  • the traditional solution consists in pouring concrete directly on wooden beams already installed at the site level, then in mechanically connecting the two materials by means of connectors of variable geometries, types and methods of fixing, which will end up integrated into the thickness of the the slab.
  • the second method currently used to manufacture mixed wood-concrete slabs consists of using prefabricated elements, assembled directly on site or in the workshop and then transported to their place of installation.
  • This technique advantageously allows an assembly speed equivalent to that of entirely wooden structures, and to eliminate the problems of shoring and moisture uptake of the wood mentioned above.
  • the use of prefabricated elements guarantees obtaining standard products, perfectly calibrated and controlled in terms of mechanical properties, easier to integrate into the design of buildings.
  • the on-site assembly of prefabricated elements in the factory also allows better technical control of manufacturing.
  • the industrialization of manufacturing processes makes it possible to guarantee a level of quality and to increase the level of finish of the elements, while reducing costs.
  • the use of prefabrication also has the advantage of being able to avoid any bad weather on site.
  • the connectors used must have specific properties, allowing them in particular to ensure the most rigid connection possible between the wood and the concrete, so as to limit the sliding between the two materials, and thus guarantee a good composite action of the floor.
  • the aim of the present invention is to provide a solution making it possible to overcome all of the drawbacks mentioned above, in order to promote the commercial development of mixed wood-concrete slabs. To this end, it aims more particularly to remedy the drawbacks inherent in prefabricated products, through a easy to implement assembly method, which relies on simple structural means while guaranteeing the preservation of the properties linked to the composite nature of the slab.
  • Another goal is to provide a mixed wood-concrete slab, designed to be used both in a horizontal position for making floors, as well as in a vertical or inclined position to make partition walls, load-bearing exterior walls, cages. 'elevators or stairs, etc.
  • the present invention relates to a slab of the type indicated in the preamble, characterized in that at least the first end portion of the profile has two chamfers, symmetrical with respect to the axis of the profile, and s' each extending between two adjacent longitudinal faces of the section and in that the assembly means also comprise means for bonding each section to the internal face of the concrete plate.
  • the beams each have on their internal face a groove of complementary shape to a second end portion of a section, of parallel axis. to the axis of the profile, and opposite the first end portion.
  • such a groove preferably has a depth extending over at least 1/3 of the height of the beam.
  • the bonding means are for their part preferably chosen from the group comprising a two-component epoxy resin adhesive and a polyurethane adhesive.
  • mechanical assembly means may further be provided to secure the profiles to the concrete plate and to the plurality of beams in addition to the bonding assembly means.
  • the subject of the invention is also a method of manufacturing a slab as described above, in which a concrete plate having an internal face and an external face is manufactured by molding and said concrete plate is connected by means. of assembly to a wooden frame formed of a plurality of beams comprising an internal face and an external face, characterized in that one uses as assembly means, a plurality of profiles substantially in "I", made of wood or a material derived from wood, and in that each section is glued on the one hand to the internal face of the concrete plate and on the other hand to the internal face of each of the beams.
  • the step of manufacturing the plurality of grooves can be carried out either by machining the concrete plate previously manufactured by molding, or concomitantly with the manufacture by molding of the concrete plate, using a mold. of appropriate shape.
  • a step is then preferably provided in which to manufacture the slab according to the invention, the first end portion of a profile is housed and fixed by gluing respectively in a groove of the concrete plate and the second end portion in the groove of a beam.
  • the present invention relates to a prefabricated mixed slab 1 for the construction in particular of floors or walls, comprising a wooden frame 2 formed of a plurality of beams 3 and a concrete plate 4 connected to said frame 2 by assembly means.
  • the beams 3 and the plate 4 have an internal face 30, 40 facing each other and an external face 31, 41 which constitute the external faces of the slab 1.
  • the assembly means comprise a plurality of profiles 5, of axis X, substantially "I", made of wood or a material derived from wood, for example plywood or any equivalent material, having two opposite side faces 6, perpendicular to the X axis, and four longitudinal faces two by two opposite, parallel to the X axis. More precisely, the latter have opposite upper faces 7 and lower 8 and opposite left faces 9 and right 10.
  • each section 5 has two chamfers 11, symmetrical with respect to the axis X, and connecting the upper face 7 with respectively the left face 9 and the right face 10.
  • the two chamfers 11 and the upper face 7 of the section together form a first end portion 12 of the profile 5, a second end portion 13 of which comprises the lower face 8 and the respective lower end zones of the left 9 and right 10 faces.
  • the first and second end portions 12, 13 extend along an axis parallel to the X axis of the profile 5.
  • the concrete plate 4 comprises a plurality of grooves 14, extending parallel to each other, on its internal face 40, and which are designed to accommodate each the first. end portion 12 of a section 5.
  • each beam 3 is provided with a longitudinal groove 15, formed on its internal face 30, designed to accommodate the second end portion 13 of a section 5.
  • the grooves 14 are preferably obtained during the manufacture by molding of the concrete plate 4, but can also result from a subsequent machining of the latter previously dried.
  • the grooves 15 are for their part obtained by appropriate machining of the beams 3.
  • the composite slab illustrated in the figures has a width of approximately 1.2 m. It consists of a concrete plate 4 with a thickness e of approximately 70 mm, each groove 14 of which has a depth p substantially equal to 25 mm. Furthermore, each beam 3 of the wooden frame 2 has a height h of about 30 mm and a width l of about 100 mm, while the groove 15 with which it is provided has a depth p1 substantially equal to 5 mm. It should also be noted that each groove 14 has opposite inclined walls 16 forming an angle ⁇ of between 85 ° and 95 °, preferably 94 °, with the internal face 40 of the concrete plate 4. This angle ⁇ corresponds to the angle of inclination of the chamfers 11 included in each section 5.
  • these values are only given by way of non-limiting example. In practice, the composite slab according to the invention and its constituent elements can of course have any other dimensions, specifically adapted to the applications and to the needs of the corresponding sites.
  • the profiles 5 make it possible to connect the concrete plate 4 to the beams 3 of the wooden frame 2.
  • the first and second end portions 12, 13 of each profile 5 are respectively inserted into a groove 14 of the plate 4 and the groove 15 of a beam 3. They are fixed in their respective housings by means of an adhesive, for example of the polyurethane type or of the two-component epoxy resin type allowing the both to achieve the assembly characteristics required by the standards in force in the construction industry, and to guarantee a total absence of slippage between the wood of the profiles 5 and the concrete of the plate 4.
  • an adhesive for example of the polyurethane type or of the two-component epoxy resin type
  • mechanical assembly means can also be used in addition to the glue, if necessary.
  • the second end portion 13 of the section 5, intended to interact with the groove 15 of a beam 3 has a structure making it possible to further strengthen the bonding bond.
  • an alternative embodiment is for example envisaged in which the second end portion 13 of the profile has a structure similar to that of the first end portion 12.
  • the second end portion also has two chamfers then extending respectively between the faces 8 and 10 and the faces 8 and 9 (cf. fig. 4 ), the groove 15 then being shaped correspondingly.
  • the lower face 8 of the section 5 can be shaped so as to include a series of teeth extending parallel to each other over its entire length (cf. fig. 5 ).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Panels For Use In Building Construction (AREA)
EP21158505.4A 2020-02-21 2021-02-22 Vorgefertigte verbundplatte, insbesondere für den decken- oder wandbau, und entsprechendes herstellungsverfahren Active EP3868970B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2001721A FR3107539B1 (fr) 2020-02-21 2020-02-21 Dalle mixte préfabriquée pour la construction notamment de planchers ou de murs et procédé de fabrication

Publications (3)

Publication Number Publication Date
EP3868970A1 true EP3868970A1 (de) 2021-08-25
EP3868970C0 EP3868970C0 (de) 2023-07-12
EP3868970B1 EP3868970B1 (de) 2023-07-12

Family

ID=70154786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21158505.4A Active EP3868970B1 (de) 2020-02-21 2021-02-22 Vorgefertigte verbundplatte, insbesondere für den decken- oder wandbau, und entsprechendes herstellungsverfahren

Country Status (2)

Country Link
EP (1) EP3868970B1 (de)
FR (1) FR3107539B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4273341A1 (de) * 2022-05-03 2023-11-08 B. Lütkenhaus GmbH Wand-, decken- oder dachelement mit knaggen
EP4317627A1 (de) * 2022-08-05 2024-02-07 fischerwerke GmbH & Co. KG Holz-beton-verbundelement und verfahren zu seiner herstellung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584758A1 (fr) 1985-07-12 1987-01-16 Girard Michel Profile metallique pour element prefabrique en beton a ossature de bois et procede d'utilisation
WO2007091899A1 (en) * 2006-02-10 2007-08-16 Combino As Elements/slabs based on solid wood elements reinforced with concrete
EP1992755A2 (de) * 2007-05-15 2008-11-19 Universität Innsbruck Traegerelement, stegtraegeranordnung und Verfahren zu deren Herstellung
EP2072705A1 (de) * 2007-12-21 2009-06-24 Renggli AG Holz-Beton-Verbundelement
EP2377660A1 (de) 2010-04-13 2011-10-19 Macc3 Verfahren zur Herstellung von Fertigbauplatten aus Holz und Beton, und mit diesem Verfahren erzeugte Platten
DE102013104108A1 (de) * 2013-04-23 2014-11-06 Stephan Holzbau GmbH Auflagerkonstruktion zur Spiegellagerung einer auf Holzbalken gelagerten Betonplatte in Holz-Beton-Verbundbauweise
WO2019038120A1 (de) * 2017-08-21 2019-02-28 Universität Duisburg-Essen Holz-beton-verbunddecke

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584758A1 (fr) 1985-07-12 1987-01-16 Girard Michel Profile metallique pour element prefabrique en beton a ossature de bois et procede d'utilisation
WO2007091899A1 (en) * 2006-02-10 2007-08-16 Combino As Elements/slabs based on solid wood elements reinforced with concrete
EP1992755A2 (de) * 2007-05-15 2008-11-19 Universität Innsbruck Traegerelement, stegtraegeranordnung und Verfahren zu deren Herstellung
EP2072705A1 (de) * 2007-12-21 2009-06-24 Renggli AG Holz-Beton-Verbundelement
EP2377660A1 (de) 2010-04-13 2011-10-19 Macc3 Verfahren zur Herstellung von Fertigbauplatten aus Holz und Beton, und mit diesem Verfahren erzeugte Platten
DE102013104108A1 (de) * 2013-04-23 2014-11-06 Stephan Holzbau GmbH Auflagerkonstruktion zur Spiegellagerung einer auf Holzbalken gelagerten Betonplatte in Holz-Beton-Verbundbauweise
WO2019038120A1 (de) * 2017-08-21 2019-02-28 Universität Duisburg-Essen Holz-beton-verbunddecke

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4273341A1 (de) * 2022-05-03 2023-11-08 B. Lütkenhaus GmbH Wand-, decken- oder dachelement mit knaggen
EP4317627A1 (de) * 2022-08-05 2024-02-07 fischerwerke GmbH & Co. KG Holz-beton-verbundelement und verfahren zu seiner herstellung

Also Published As

Publication number Publication date
EP3868970C0 (de) 2023-07-12
EP3868970B1 (de) 2023-07-12
FR3107539B1 (fr) 2023-01-06
FR3107539A1 (fr) 2021-08-27

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