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EP3752688B1 - Procédé pour la fabrication de planchers composites et plancher composite - Google Patents

Procédé pour la fabrication de planchers composites et plancher composite Download PDF

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Publication number
EP3752688B1
EP3752688B1 EP19710573.7A EP19710573A EP3752688B1 EP 3752688 B1 EP3752688 B1 EP 3752688B1 EP 19710573 A EP19710573 A EP 19710573A EP 3752688 B1 EP3752688 B1 EP 3752688B1
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EP
European Patent Office
Prior art keywords
elements
timber
composite floor
connecting elements
timber elements
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.)
Active
Application number
EP19710573.7A
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German (de)
English (en)
Other versions
EP3752688A1 (fr
Inventor
Klaus Engelhart
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Individual
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Individual
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Filing date
Publication date
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Publication of EP3752688A1 publication Critical patent/EP3752688A1/fr
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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
    • 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
    • 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
    • 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
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • 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
    • 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
    • E04B2005/237—Separate connecting elements

Definitions

  • the invention relates to a method for producing composite ceilings in which wooden elements are placed directly next to one another on supports and connected to one another, a composite ceiling is produced by applying a concrete layer and connecting elements are attached to the wooden elements and then reinforcing elements are placed on the connecting elements.
  • the present invention also relates to a composite ceiling, with several wooden elements arranged next to one another, on which connecting elements are attached, and with a concrete layer which is arranged on the wooden elements and which is provided with reinforcing elements, wherein connecting elements are attached to the wooden elements.
  • wooden beams are to be included which can be constructed in one piece or also glued from boards, but also plate-shaped elements which can be constructed in multiple layers, for example.
  • a single wooden element typically spans the area between two supports and, as a rule, several wooden elements are arranged next to one another.
  • composite ceilings in which a lower section is typically made of wood and a section above it is made of concrete.
  • An advantage of such composite ceilings is that the wood layer serves as permanent formwork and thus the production is simplified.
  • the wood layer represents an advantage in terms of building physics for the space below the ceiling.
  • composite ceilings benefit from the high tensile strength of wood and the fact that the entire cross-section of the wood can absorb tensile forces, which is in contrast to a pure concrete ceiling , in which tensile forces can essentially only be absorbed by the reinforcement.
  • the wood is mainly subjected to tension and the concrete is mainly subjected to pressure, so that the advantageous properties of these building materials are optimally used.
  • the DE 198 18 525 A discloses a wood-concrete composite element in which a wood layer is composed of a plurality of squared timbers, which is connected to a concrete layer via connecting elements.
  • reinforcement elements are provided within the concrete layer. These are necessary to prevent cracks in the concrete layer from shrinking to avoid curing.
  • the advantages described above can be achieved with such a composite ceiling.
  • the strength and in particular the rigidity of such a composite ceiling is inadequate for some applications. Therefore, in some cases too great a thickness of the material layers is necessary in order to meet the given requirements.
  • the CH 694 945 A5 discloses a method for producing composite floors according to the preamble of claim 1 and a composite ceiling according to the preamble of claim 6.
  • a particular disadvantage of the known solutions is that the wood layer, due to the inadequate connection with the concrete layer, also results in a compressive load on the wood which, compared to a tensile load, can typically only be absorbed inadequately.
  • the object of the present invention is to avoid these disadvantages and to specify a method for producing a composite ceiling and a special composite ceiling so that the strength and rigidity of the composite ceiling can be increased under otherwise identical conditions.
  • this is achieved by a method in which the reinforcement elements are connected to the connecting elements without play and that a connecting element is used to connect two immediately adjacent wooden elements and that a connecting element is inserted into a groove that is formed between two immediately adjacent wooden elements .
  • the composite ceiling according to the invention is characterized in that the reinforcement elements are connected to the connecting elements without play, regardless of the concrete layer, and that one connecting element is used to connect two immediately adjacent wooden elements and that one connecting element is inserted into a groove between two immediately adjacent wooden elements is trained.
  • the main advantage of the present invention is that the transmission of shear forces between wood and concrete takes place not only through the connecting elements, as is the case in the prior art, but also through the reinforcement elements, the connecting elements acting as intermediate links.
  • An essential aspect of the invention is that the connecting elements and the reinforcing elements are connected to one another directly and without the possibility of relative movement, so that the force transmission begins to take effect even with a minimal deformation of the composite ceiling.
  • a Limited relative movement between wood and concrete take place without significant shear forces being transmitted. This can help you at the beginning of a Load deform the wood layer and the concrete layer without significant forces being transferred between them, which not only leads to reduced strength, but also to increased deflection under load.
  • the composite ceiling can in principle be treated like a homogeneous carrier, if one disregards the fact that the modulus of elasticity can vary in the direction of the thickness.
  • the forces from the wood layer are introduced into the concrete layer over a large area via the connecting elements.
  • the materials can be used as best as possible to optimize the load-bearing capacity.
  • the wood layer is exclusively, or at least predominantly, subjected to tensile loads, with the entire cross-section being available to absorb the load. This avoids unfavorable compressive stress.
  • a connecting element is used to connect two immediately adjacent wooden elements. This dual use of the connecting elements is particularly advantageous.
  • a connecting element is inserted into a groove which is formed by two immediately adjacent wooden elements.
  • a force is transmitted between a connecting element and the neighboring wooden elements not only through the nails or staples with which the connection is made, but also in a form-fitting manner via the flanks of the groove and the connecting element resting on it.
  • the reinforcement elements are used in receiving grooves in the connecting elements.
  • the connection can be established in a simple manner, particularly on the construction site, in that the reinforcing elements, typically in the form of customary structural steel grids, are placed on the connecting elements and hammered into the grooves. It is helpful if the receiving grooves of adjacent connecting elements are aligned accordingly, so that only a minimal deformation of the structural steel mesh is required to establish the connection.
  • a particularly rigid structure of the composite ceiling can be achieved in that one reinforcement element is connected to several connecting elements.
  • one-piece solid wood beams as wooden elements
  • a completely flat underside of the ceiling can in particular be guaranteed by aligning the wooden elements in the height direction before fastening the connecting elements. This can be done, for example, in such a way that individual bars that protrude downwards are placed under in the middle in order to push them slightly upwards.
  • the connecting elements are glued to the wooden elements.
  • the wooden elements are preferably provided with a hydrophobic protective layer before the concrete layer is applied. This enables a significant reduction in the water absorption of the wooden elements during manufacture, which reduces the risk of undesirable deformations.
  • the composite ceiling largely on the construction site, i.e. first the wooden elements are placed on the supports, then the connecting elements are attached and then the reinforcing elements are connected to the connecting elements, after which the concrete layer is applied. It is, however, also possible to carry out some of these activities in a factory and to deliver the composite floor semi-finished or ready-made to the construction site. For example, several wooden elements can already be connected with connecting elements to form larger units when they are delivered to the construction site. If necessary, reinforcement elements or even the concrete layer can then also be applied. In this way, the work on the construction site can be simplified and accelerated.
  • a design variant of the invention that is particularly advantageous in terms of construction is characterized in that the wooden elements are beveled on their upper side, so that in each case two adjacent wooden elements form a V-shaped groove running in the longitudinal direction. As a result, a non-positive and positive connection with the connecting elements can be achieved. This is particularly advantageous when the connecting elements are designed as V-shaped profiles.
  • a statically particularly advantageous solution provides that the connecting elements are arranged parallel to the wooden elements. This allows shear forces to be transmitted to the concrete layer over the entire length of the wooden elements.
  • the connecting elements are designed as profiles which have webs running in the longitudinal direction in which receiving grooves are provided.
  • the necessary distance between the reinforcement elements and the boundary of the concrete layer can also be ensured in this way.
  • the webs running in the longitudinal direction have recesses between the receiving grooves. This also improves the frictional connection within the concrete.
  • the reinforcement elements are preferably designed as structural steel grids. As a result, the reinforcement can be produced easily and acting in all directions.
  • a particularly favorable embodiment variant of the invention provides that millings are provided in the wooden elements on a surface facing the concrete layer.
  • the shear forces between the wooden elements and the concrete layer are not only transmitted via the connecting elements, but also directly on the boundary surface, so that an additional increase in strength and flexural rigidity can be achieved.
  • the millings are wedge-shaped.
  • the wedges are especially provided in the end areas in such a way that the floor rises towards the center in the position of use and a support surface is provided on the side facing the end which absorbs the shear forces from the concrete layer when the composite ceiling is loaded. This enables, in particular, increased safety in the event of fire, if the connecting elements should fail due to excessive heating.
  • the millings explained above also provide additional security in the event of a fire, if the connecting elements begin to fail due to extreme heating after prolonged exposure to fire, since the shear forces can then still be transmitted.
  • a sealing element is preferably provided between two adjacent wooden elements. This can prevent concrete water from seeping through the space between two wooden elements during production and creating unsightly discolorations on the soffit.
  • a sealing element for example a bead of fire-retardant intumescent acrylic applied to the bottom of the V-shaped groove.
  • the fire resistance can in particular be increased in that a fire protection element is provided between two adjacent wooden elements.
  • This is especially designed to be intumescent, i.e. it foams up when heated and prevents fire from burning into the gap between two wooden elements and prematurely destroying the wooden beams or exposing the connecting elements to heating that leads to failure.
  • Fig. 1 shows a section of a composite ceiling according to the invention with partially omitted components.
  • the composite ceiling consists of several wooden elements 1, which are designed as wooden beams arranged parallel to one another.
  • a connecting element 2 is provided on the upper side, which is designed as a profile running parallel to the wooden elements 1.
  • Reinforcement elements 3 in the form of structural steel grids are connected to the connecting elements 2 in such a way that the reinforcement elements 3 run parallel to them just above the wooden elements 1.
  • a concrete layer 4 is provided above the wooden elements 1, which surrounds the reinforcement elements 3.
  • this is broken away at the front to show the other components.
  • the wooden elements 1 have an essentially rectangular cross-section, the two upper corners being bevelled so that two adjacent wooden elements 1 each form a V-shaped groove 5 with a triangular cross-section.
  • a web 7 is formed on each of the two ends of the profile, which has in the longitudinal direction alternately upwardly protruding sections 7a and horizontally protruding fastening sections 7b in between.
  • the connecting elements 2 are connected to the wooden elements 1 by nails 8, which are driven obliquely into the V-shaped groove 5 on the one hand and perpendicularly through the fastening sections 7b into the wooden elements 1 on the other hand. Alternatively, screws or clamps are also possible. In addition, the connecting elements 2 can be glued to the wooden elements 1.
  • a connecting element 2 can also be placed flat on the top of a wooden element 1 in order to ensure the intimate connection of the wooden element 1 with the concrete layer.
  • grooves 9 are provided on the upper side of the upwardly protruding sections 7a so that they are connected to the connecting elements 2 and thus to the wooden elements 1 without play even before the concrete is introduced. It is essential for the invention that the tight fit ensures that there is always a force fit and form fit between the reinforcement elements 3 and the connecting elements 2, so that a direct transmission of force is guaranteed.
  • the reinforcement elements are typically hammered into the receiving grooves 9 during manufacture.
  • the wooden elements 1 have millings 10 which are incorporated in the end regions 12 of the wooden elements 1 on the upper sides 11 facing the concrete layer 4.
  • the millings 10 are wedge-shaped and have a bottom 13 that rises towards the center of the wooden elements 1, so that a support surface 14 is formed in the direction of the ends 5, to which shear forces from the concrete layer 4 can be transmitted.
  • the concrete layer 4 can also extend over the sections protruding into the millings 10 on the wooden elements 1 and thus transfer additional shear forces. These shear forces act outwards so that the support surfaces 14 can effectively transfer them.
  • the composite ceiling according to the invention is at its ends on only in the Fig. 5 bearings 15 shown.
  • a fire protection element 17 in the form of a spring is inserted between two adjacent wooden elements 1, which prevents a fire from spreading rapidly upwards from the soffit 16 between the two wooden elements 1.
  • the fire protection element 17 is preferably designed to be intumescent.
  • a sealing element 18 can be provided in the area of the bottom of the groove 5, which prevents concrete water from seeping down between the two wooden elements 1 when the concrete is applied and impairing the underside 16 by discoloration.
  • This sealing element 18 can also have an intumescent section in order to offer additional fire protection.
  • the sealing element 18 can be arranged in the form of a bead of sealing material at the bottom of the groove 5.
  • the one in the Fig. 9 differs only in the design of the connecting elements 2, which is why only one such is shown. Only the upwardly protruding sections 7a are executed, but not horizontally protruding fastening sections. Thus, between the upwardly protruding sections 7a and thus also between the receiving grooves 9, there are recesses 19, which ensure a continuous frictional connection in the concrete also transversely to the connecting elements 2.
  • the composite ceiling can be produced by placing the wooden elements 1 individually on supports 15 and then applying the connecting elements 2 and the reinforcing elements 3, after which the concrete layer 4 is produced. However, prefabrication can also take place, so that several wooden elements 1 connected to one another are already placed on the supports 15 and then the connecting elements 2 and the reinforcing elements 3 have already been mounted.
  • the concrete layer 4 can also be applied and cured if necessary.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Floor Finish (AREA)

Claims (15)

  1. Procédé de fabrication de planchers composites selon lequel on dispose des éléments en bois (1), directement les uns des autres sur des supports et on les relie entre eux, et en appliquant une couche de béton (4) on réalise un plancher composite, les éléments de liaison (2) étant fixés aux éléments en bois (1) et ensuite les éléments d'armement (3) sont placés sur les éléments de liaison (2),
    procédé caractérisé en ce que
    les éléments d'armement (3) sont reliés sans jeu aux éléments de liaison (2) et,
    les éléments de liaison (2) sont utilisés pour relier respectivement, directement deux éléments en bois (1) voisins et,
    on place un élément de liaison (2) dans la rainure (5) entre deux éléments en bois (1) directement adjacents.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    on place les éléments d'armement (3) dans des rainures réceptrices (9) des éléments de liaison (2).
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    on aligne en hauteur les éléments en bois (1) avant de fixer les éléments de liaison (2).
  4. Procédé selon l'une des revendications 1 à 3,
    caractérisé en ce que
    on applique les éléments de liaison (2) sur les éléments en bois (1) après mise en place sur les supports (15).
  5. Procédé selon l'une des revendications 1 à 4,
    caractérisé en ce que
    on introduit un élément d'étanchéité entre les éléments en bois (1) et/ou un élément anti-incendie entre les éléments en bois (1).
  6. Plancher composite comportant plusieurs éléments en bois (1) directement juxtaposés, une couche en béton sur les éléments en bois (1) et muni d'éléments d'armement (3),
    des éléments de liaison (2) étant prévus sur les éléments en bois (1), plancher caractérisé en ce que
    les éléments d'armement (3) sont reliés aux éléments de liaison (2) indépendamment de la couche de béton (4), sans jeu, et,
    les éléments de liaison (2) sont utilisés respectivement pour relier deux éléments en bois (1) directement voisins et,
    un élément de liaison (2) se place dans une rainure (5) entre deux éléments en bois (1) directement voisins.
  7. Plancher composite selon la revendication 6,
    caractérisé en ce que
    les éléments en bois (1) sont des poutres en bois plein.
  8. Plancher composite selon la revendication 6 ou 7,
    caractérisé en ce que
    les éléments en bois (1) ont un côté supérieur en biais de façon que chaque fois deux éléments en bois (1) voisins forment une rainure (6) en V, orientée dans la direction longitudinale et de préférence les éléments de liaison (2) sont des profilés en forme de V.
  9. Plancher composite selon l'une des revendications 6 à 8,
    caractérisé en ce que
    les éléments de liaison (2) sont installés parallèlement aux éléments en bois (1).
  10. Plancher composite selon l'une des revendications 6 à 9,
    caractérisé en ce que
    les éléments de liaison (2) sont des profilés qui ont des branches (7) dans la direction longitudinale, munies d'encoches réceptrices (9) et de préférence les branches (7) ont des évidements (19) dans la direction longitudinale entre les encoches réceptrices (9).
  11. Plancher composite selon l'une des revendications 6 à 10,
    caractérisé en ce que
    des parties fraisées (10) sont réalisées dans les éléments en bois (1) dans la surface (11) tournée vers la couche de béton (4) et, de préférence, les parties fraisées (10) ont une forme de coin.
  12. Plancher composite selon la revendication 11,
    caractérisé en ce que
    les parties fraisées (10) sont prévues respectivement dans les zones d'extrémité (12) des éléments en bois (1).
  13. Plancher composite selon l'une des revendications 6 à 12,
    caractérisé en ce que
    les éléments de liaison (2) sont collés aux éléments en bois (1).
  14. Plancher composite selon l'une des revendications 6 à 13,
    caractérisé en ce que
    les éléments de liaison (2) sont reliés aux éléments en bois (1) avec des clous, des pinces ou des vis.
  15. Plancher composite selon l'une des revendications 6 à 14,
    caractérisé en ce que
    un élément d'étanchéité (18) est prévu entre deux éléments en bois (1) voisins.
EP19710573.7A 2018-02-13 2019-02-12 Procédé pour la fabrication de planchers composites et plancher composite Active EP3752688B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT600252018A AT520303B1 (de) 2018-02-13 2018-02-13 Verfahren zur herstellung von verbunddecken
PCT/AT2019/060051 WO2019157544A1 (fr) 2018-02-13 2019-02-12 Procédé pour la fabrication de planchers composites et plancher composite

Publications (2)

Publication Number Publication Date
EP3752688A1 EP3752688A1 (fr) 2020-12-23
EP3752688B1 true EP3752688B1 (fr) 2021-09-15

Family

ID=65686173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19710573.7A Active EP3752688B1 (fr) 2018-02-13 2019-02-12 Procédé pour la fabrication de planchers composites et plancher composite

Country Status (5)

Country Link
EP (1) EP3752688B1 (fr)
CN (1) CN111712606B (fr)
AT (1) AT520303B1 (fr)
CA (1) CA3091031A1 (fr)
WO (1) WO2019157544A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019200046B3 (de) 2019-01-04 2020-06-10 Veit Dennert Kg Baustoffbetriebe Spannbeton-Holz-Verbundplatte, insbesondere zum Einsatz als Gebäude-Decken- oder Wandplatte, und Verfahren zu deren Herstellung
DE102019215009A1 (de) * 2019-01-04 2020-07-09 Veit Dennert Kg Baustoffbetriebe Holz-Beton-Verbundplatte, insbesondere zum Einsatz als Gebäude-Decken- oder -Wandplatte und Verfahren zu deren Herstellung
AT524744B1 (de) * 2021-02-12 2022-11-15 Mmk Holz Beton Fertigteile Gmbh Verbunddecke

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714815C (de) * 1940-04-21 1941-12-08 Carl Pluta Holzbetondecke fuer Wohn- und Industriegebaeude
DE1899554U (de) * 1962-04-12 1964-08-27 Cloos Kommanditgesellschaft Ge Spanplatte fuer untersicht-betondecken.
FR2540161B1 (fr) * 1983-02-01 1985-10-25 Bouygues Sa Procede et elements pour la realisation d'un plancher de batiment en beton arme
CH677122A5 (fr) * 1988-07-28 1991-04-15 Robert Haldi
DE9105240U1 (de) * 1991-04-27 1991-07-11 Bayerl, Franz, 8441 Kirchroth Verbunddecke
FR2702236B1 (fr) * 1993-03-03 1995-08-04 Gauthier Daniel Element de construction composite bois-beton.
DE4420175A1 (de) * 1994-06-09 1995-12-14 Karl Moser Beton-Verbundplatte
DE19818525B4 (de) 1998-04-24 2004-11-25 Bauer, Werner, Dipl.-Ing. Holz-Beton-Verbundelement
CH694945A5 (it) * 2000-04-04 2005-09-30 Full Restore Ltd Solaio di travi e tavole lignee reso monolitico mediante mezzi di fissaggio.
DE10254043B4 (de) * 2002-11-20 2006-10-05 Universität Leipzig Verbundkonstruktion hoher Tragfähigkeit
ITBO20080361A1 (it) * 2008-06-09 2009-12-10 Cogefrin S P A Pannello prefabbricato per costruzioni edili e relativo metodo di messa in opera.
CN201660990U (zh) * 2010-03-12 2010-12-01 昆明理工大学 钢筋混凝土-木组合楼板
CN204387028U (zh) * 2014-12-08 2015-06-10 杭州国立工贸集团有限公司 板材与板材间连接钢带钉

Also Published As

Publication number Publication date
WO2019157544A1 (fr) 2019-08-22
AT520303B1 (de) 2019-03-15
CA3091031A1 (fr) 2019-08-22
CN111712606B (zh) 2022-05-27
CN111712606A (zh) 2020-09-25
EP3752688A1 (fr) 2020-12-23
AT520303A4 (de) 2019-03-15

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