EP0952271A2 - Elément à structure mixte bois-béton - Google Patents

Elément à structure mixte bois-béton Download PDF

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Publication number
EP0952271A2
EP0952271A2 EP99108066A EP99108066A EP0952271A2 EP 0952271 A2 EP0952271 A2 EP 0952271A2 EP 99108066 A EP99108066 A EP 99108066A EP 99108066 A EP99108066 A EP 99108066A EP 0952271 A2 EP0952271 A2 EP 0952271A2
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EP
European Patent Office
Prior art keywords
composite
concrete
boards
wood
component
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.)
Withdrawn
Application number
EP99108066A
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German (de)
English (en)
Other versions
EP0952271A3 (fr
Inventor
Werner Bauer
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0952271A2 publication Critical patent/EP0952271A2/fr
Publication of EP0952271A3 publication Critical patent/EP0952271A3/fr
Withdrawn legal-status Critical Current

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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
    • E04B5/16—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
    • E04B5/16—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
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • 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 present invention relates to a wood-concrete composite element consisting of a wooden component, which consists of a plurality of boards assembled in a stacked construction, and a concrete component, the wooden component and the concrete component adjoining one another along a composite surface.
  • Wooden components that are made in board stack construction are used for example as wall or ceiling elements. Such board stacking elements have the advantage that extensive flat wooden components can be assembled from a large number of boards, whereby on the one hand a high strength of the wooden component is achieved and on the other hand relatively low manufacturing costs can be realized.
  • any number of boards or squared timbers are directly strung together and nailed together, screwed, glued, dowelled or otherwise suitably connected to one another.
  • the wooden component produced in this way has a thickness that corresponds to the width of the individual boards, a longitudinal extent that corresponds to the length of the boards, and a transverse extent that results from the number of rows of boards and their individual thickness.
  • a disadvantage of such wooden components made in board stack construction is that certain structural requirements cannot be met with these components. For example, the sound insulation values required in multi-family houses cannot be achieved with ceiling elements made of wooden components, or only at a disproportionately high cost. Likewise, fire protection requirements in apartment buildings can usually not be met with the conventional board stacking elements. For certain structures, burglar-resistant material strengths must also be proven, which are difficult to achieve with such wooden components.
  • Wood-concrete composite elements are also known from the prior art. Wood-concrete composite elements are used in particular in construction where the advantages of the building material wood are to be combined with the advantages of the building material concrete. Wood-concrete composite elements are therefore used differently, in which the individual components have a concrete component in addition to the wooden component.
  • WO 94/11589 shows a wood-concrete composite ceiling, in which the connection between the wooden beams and the concrete is made by metal plates which are fastened in the upper region of the wooden beams. A board stacking element is not used in this composite ceiling. The achievable strength of this composite construction is limited. In addition, the assembly of the composite panels, which can only be done manually on site, is time-consuming.
  • a wood-concrete composite element is also known from WO 96/25566.
  • Metallic composite elements are embedded between individual boards, which are embedded in the concrete component extend. Board stacking elements are not used.
  • the composite anchors used can only absorb relatively low shear forces and do not allow a fully biological construction.
  • a wood-concrete composite element is also in Wood-concrete composite ceiling in use ", GE Marchand, J. Natterer in Swiss engineer and architect, No. 36, 8/96 p. 754 f. And under the system name Hilti HBV ".
  • the complete hardening of the concrete has to be waited for (at least 4 weeks), as there is a loss of material during the drying process.
  • the connecting elements After the concrete has completely hardened, the connecting elements have to be re-tensioned individually in order to achieve a positive and positive fit Establish connection between the wooden component and the concrete component. Nevertheless, it cannot be ruled out that further material shrinkage (for example also in the case of wooden components) may occur later, as a result of which the static properties of the composite element deteriorate, so that the connecting elements provided can only absorb transverse forces that occur with difficulty.
  • An object of the present invention is therefore to avoid the disadvantages of the prior art and to provide a wood-concrete composite element in which there is a permanent connection between the wooden component and the concrete component, which can also easily absorb lateral forces.
  • the manufacturing process for a wood-concrete composite element is to be simplified by suitable design.
  • the wood-concrete composite element specified in claim 1 In the manufacture of the wooden component, the required composite webs can be inserted between the boards and attached to them in the normal process. The composite webs have a greater width than the other boards of the wooden component, the oversize later protruding into the concrete component, thereby enabling the connection between the wooden component and the concrete component.
  • a particularly advantageous embodiment of the wood-concrete composite element according to the invention is characterized in that the composite webs are composite boards, the width of which is greater than the width of the other boards, and that shear force anchors are arranged which are transverse to the longitudinal direction of the composite webs above the composite surface by recesses in the Composite webs run and are encompassed by the concrete component.
  • This embodiment offers the advantage that no foreign materials have to be integrated within the wooden component, with which the conventional manufacturing techniques of the board stack construction can continue to be used. It is no problem, for example, to provide every fourth board of the wooden component with a larger width in order to achieve the desired excess compared to the other boards.
  • composite webs made of other materials are used, it being possible for the thickness of the composite sheets to be relatively small, for example 0.5 to 2.0 mm.
  • These composite sheets can in turn be arranged between the boards during the manufacture of the wooden component and can be connected to the boards in a conventional manner, for example by nail connections.
  • the advantage of this embodiment is, above all, that particularly large transverse forces can be absorbed and, depending on the application, additional transverse force anchors can be dispensed with, since a non-positive connection is established directly between the composite sheets and the concrete component.
  • the composite sheets e.g. composite webs made of plastic, steel mesh or fabric mats can also be used. It is also possible to fix these modified composite webs in the board stack by gluing, screwing or the like.
  • shear force anchors are also provided, which in turn run transversely to the longitudinal direction of the composite sheets above the composite sheets through recesses in the composite sheets and are encompassed by the concrete component.
  • This configuration enables the construction of Wood-concrete composite elements that can absorb particularly high lateral forces.
  • the fire resistance is higher compared to other embodiments.
  • the transverse force anchors consist of metallic flat profiles, in particular flat strip steel, which are arranged in grooves of the composite boards, these grooves being introduced at an acute angle to the composite surface in the sections of the composite boards projecting beyond the composite surface.
  • the grooves can be made in the composite boards by a simple sawing process, for example.
  • the flat profile is hammered into this saw slot to form an interference fit.
  • This very simple form of the shear anchor can already absorb the shear forces occurring between the wooden component and the concrete component under bending stress, since due to the inclined position of the shear anchor there is no danger that it will be torn out of the grooves of the composite boards.
  • the exact angle at which the grooves are to be made depends on the materials used for the composite webs and the shear force anchors and on the loads to be absorbed.
  • modified shear force anchors are used.
  • the shear force anchors are round bars which extend through bores in the composite webs. It is possible that these round bars are loose in the recesses of the composite webs are inserted and the required force fit is only produced by the concrete penetrating into the recesses during further production. However, it can also be advantageous if the round bars are pressed into the recesses in a force-fitting manner, wherein both steel and wooden round bars can be used. The special selection of the shear anchor and its dimensioning depend on the forces to be absorbed.
  • the shear force anchors are formed by areas of the concrete component, the concrete extending into the recesses in the composite webs and thereby forming the shear force anchors. In this way, simplified production is possible since additional shear force anchors do not have to be attached. In addition, it can be advantageous for certain applications if the wood-concrete composite element can be produced without additional metallic connecting elements.
  • the wood-concrete composite element is designed in such a way that the concrete component has steel reinforcement or reinforcement. It is also possible that the shear anchors are part of this steel reinforcement.
  • the concrete component consists essentially of a material that is open to diffusion, which enables good water vapor diffusion. It can also be advantageous if the concrete component consists largely of lightweight concrete, aerated concrete or other suitable materials that provide the desired properties.
  • the object of the invention is also achieved by the wood-concrete composite element specified in claim 4, which differs from the embodiment according to claim 1 in that the forces between the board stack element and the concrete component are absorbed by a glass fiber armor fabric which is inserted between the boards of the wooden component and takes over the function of the composite webs.
  • a glass fiber armor fabric which is inserted between the boards of the wooden component and takes over the function of the composite webs.
  • the glass fiber armor fabric is fastened in a special lamella, an adhesive joint preferably being formed in this lamella in which the fabric is glued.
  • the wood-concrete composite element consists of two main components, namely a wooden component 2 and a concrete component 3.
  • the wooden component 2 comprises a plurality of boards 4, which are assembled in a board stack construction. Depending on the type of construction and the desired strength, two, three or more layers of board are connected to one another by nailing, screwing, gluing, dowelling or otherwise in the case of the board stack construction method, as a result of which wooden components of almost any expansion can be built up.
  • the wooden component 2 further comprises a plurality of composite boards 5 which are integrated in the lower area like the other boards 4 in the wooden component 2, but are wider than these other boards 4. Due to this construction, the wood-concrete composite element has a flat surface on a lower outside 6. On the upper inside of the wooden component 2, the composite boards 5 protrude beyond the other boards 4.
  • a composite surface 7 is defined between the upper inside of the boards 4 and the lower inside of the concrete component 3, along which one is perpendicular to the wood-concrete composite element acting force shear forces occur between the wooden component 2 and the concrete component 3.
  • the wood-concrete composite element 1 has a flat upper outside 8, which is formed by the concrete component 3.
  • the concrete component 3 consists essentially of a material adapted to the respective conditions of use, for example conventional concrete, asphalt concrete, lightweight concrete, aerated concrete or a material that is open to diffusion.
  • shear force anchors 10 are also arranged on the wood-concrete composite element 1, a large number of different structural variants of the shear force anchors being shown in FIG. 1.
  • shear force anchors 10 for the wood-concrete composite element, whereby several shear force anchors can be arranged along the wood-concrete composite element, preferably at the points of the highest shear force load, depending on the load situation.
  • a flat steel 10a can, for example, serve as a shear force anchor, which is hammered into grooves 11 which are formed in the sections of the composite boards 5 which protrude into the concrete component.
  • These grooves 11 can be produced, for example, by an oblique saw cut (for example at an angle of 80 ° to the composite surface 7).
  • the angle of these grooves is to be selected so that when a force acts on the wood-concrete composite element, the forces resulting on the flat steel 10a are at an angle to the groove such that the flat steel 10a is pressed against the wall of the grooves 11 and not out of it can slip out.
  • a round steel element 10b which runs in bores 12 in the composite boards 5, can also serve as the shear force anchor.
  • the bores 12 have a significantly larger diameter than the round steel element 10b.
  • the round steel element 10b is part of a reinforcement or reinforcement that extends essentially within the entire concrete component 3 (not shown). If, in order to create the concrete component 3, the concrete mass is applied to the composite surface 7 after the transverse force anchors have already been arranged in the wooden component 2, the concrete mass will fill the remaining free spaces between the round steel element 10b and the bores 12, so that a non-positive and positive connection is established becomes. In the same way, this also happens when other shear force anchors are used, provided that cavities remain between the composite boards 5 and the shear force anchors 10 in the region of the cutouts.
  • a third variant of the shear anchor is an angle profile 10c, the vertical leg of which has in turn been pressed into grooves 11. So that the angular profile 10c cannot slip out of the grooves 11 even under load, additional fastening elements 13 are provided with which the angular profile 10c is fastened directly to the composite boards 5. For example, screws can be used as fastening elements, which are screwed into the composite boards 5 through the cross leg of the angle profile 10c.
  • a T-profile 10d can also serve as the shear force anchor, which opens up the possibility of arranging several fastening elements.
  • Another embodiment of the shear anchor is a triangular profile 10e, which runs in a dovetail groove 14 in the composite boards 5.
  • the round steel 10b is used as a shear anchor, this round steel 10b being fitted into a hole milling groove, so that there is an interference fit between the round steel and the composite boards 5.
  • the shear anchor can also be formed directly by the material of the concrete component, in that no additional shear anchor elements are introduced into the holes 12 in the composite boards 5, so that the concrete can penetrate into these holes.
  • the side view of the wood-concrete composite element 1 shown in FIG. 2 clearly shows both the cross section of the different variants of the shear anchor 10 and the cross section of the respective recesses in the composite boards 5.
  • Fig. 3 shows a perspective view of a second embodiment of the wooden component 2, which is used for the construction of a wood-concrete composite element according to the invention.
  • the main difference from the embodiment described above is the design of the composite webs, which are arranged between the boards 4.
  • composite sheets 20 are inserted into the board stack forming the wooden component 2.
  • the composite sheets 20 are preferably thin steel sheets which have a thickness of about 0.5-2.5 mm and protrude beyond the boards 4 so that they extend into the concrete component when the wood-concrete composite element is finished.
  • the composite sheets 20 do not extend to the outside 6 of the wooden component 2, but only extend into the area of the nails (or screws) penetrating the boards 4.
  • the composite sheets 20 can have an angled region 21 on their upper edge, by means of which the introduction of force into the concrete component 3 is improved.
  • Bores 22 which are arranged in the composite sheets 20 can serve the same purpose. Additional shear force anchors can also be guided through these bores 22, as was described above in relation to the other embodiment. However, the use of composite sheets 20 is also possible without additional shear force anchors, since with a suitable choice of material a sufficiently stable connection between the composite sheets 20 and the wooden component 2 on the one hand and the composite sheets 20 and the concrete component 3 on the other hand is achieved.
  • FIG. 4 shows a perspective view of a wall element 30 which comprises two wooden components 2 in the embodiment shown in FIG. 3.
  • the two wooden components 2 are directed towards each other with the respective inner sides, so that the respective outer sides 6 are directed, for example, towards the adjacent interior spaces of a building when the wall element 30 is used as an inner wall in a building.
  • the remaining space in which the composite sheets 20 extend is filled with concrete when the wood-concrete composite element is built up.
  • round steel elements 10b can be guided through the bores 22, provided the two wooden components have been aligned accordingly.
  • the wall element 30 thus has two wooden components 2 and a common concrete component 3.
  • Fig. 5 shows a sectional view from above of the wall element 30.
  • the wooden components 2 consist of rows of boards 4 and composite sheets 20 bound between them.
  • the nails with which the boards 4 are connected also penetrate the composite sheets 20 and thus fasten them in the wooden component.
  • thicker sheets it may be necessary to provide holes in the composite sheets through which the nails are guided. Normally, however, it is possible to drive the nails through the composite sheets 20 with conventional machines that are used to produce board stacking elements, so that there is also no increased adjustment effort.
  • composite sheets it is also possible, for example, to use metallic fabric mats, steel grids or composite webs made of plastics, each of which is fastened in a suitable manner in the wooden component.
  • FIG. 6 shows a modified embodiment in which the composite webs are formed by a glass fiber armor fabric 40.
  • the glass fiber armor fabric 40 is in turn at different locations essentially over the entire length the wooden component 2 arranged. It is important that the connection between the fabric 40 and the wooden component 2 is sufficiently strong to absorb the forces that occur.
  • special slats 41 are integrated into the board stack element 2 between the individual boards 4.
  • Each special lamella 41 preferably has approximately the width of a board 4 and in turn consists of two thinner boards 42 and 43.
  • a glue joint 44 is provided in a thinner board 43, into which the armored fabric 40 is glued.
  • the other thinner board 42 is then attached, for example also by gluing, so that the tissue is also held in place by the clamping force.
  • the glass fiber armor fabric can be laid twice in the area of the glue joint.
  • the special lamella can be manufactured as a finished element in a separate manufacturing step and can be easily integrated into the board stack element when it is produced.
  • Cross ties can be threaded through the fabric in the manner described above if necessary, which enable an even stronger connection to the concrete component. Under normal circumstances, the resulting connection will also be sufficient without additional cross anchors, since the concrete penetrates between the individual fibers of the fabric and thus a very firm connection is established between the wooden component and the concrete component, the quality of which does not occur during drying out of the concrete due to shrinkage subsides.
  • a transverse reinforcement or reinforcement 45 can be inserted, which can also consist of a glass fiber armor fabric.
  • the wood-concrete composite element according to the invention can be used to produce prefabricated components which can be used as wall and / or ceiling components both indoors and outdoors.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Laminated Bodies (AREA)
EP99108066A 1998-04-24 1999-04-23 Elément à structure mixte bois-béton Withdrawn EP0952271A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998118525 DE19818525B4 (de) 1998-04-24 1998-04-24 Holz-Beton-Verbundelement
DE19818525 1998-04-24

Publications (2)

Publication Number Publication Date
EP0952271A2 true EP0952271A2 (fr) 1999-10-27
EP0952271A3 EP0952271A3 (fr) 2000-12-20

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EP99108066A Withdrawn EP0952271A3 (fr) 1998-04-24 1999-04-23 Elément à structure mixte bois-béton

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DE (1) DE19818525B4 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1528171A3 (fr) * 2003-10-23 2005-05-25 Bathon, Leander Système de construction composite bois-béton comportant des éléments de construction en bois, des couches intermédiaires et éléments de construction en béton
EP1992754A3 (fr) * 2007-05-15 2012-12-12 Universität Innsbruck Elément de raccord traction-pression
CZ304080B6 (cs) * 2012-01-24 2013-10-02 Ceské vysoké ucení technické v Praze, Fakulta stavební, Katedra ocelových a drevených konstrukcí Sprazení nosníku na bázi dreva spojených pomocí ocelových desticek s oboustranne prolisovanými trny se základní deskou
US8590239B2 (en) 2006-01-13 2013-11-26 Tobias Bathon Construction made of individual components
EP2055851A3 (fr) * 2007-11-03 2014-09-10 Hans Hundegger Elément de toit, de plafond ou de mur
EP2787140A1 (fr) 2013-04-04 2014-10-08 Ed. Züblin AG Plafond plat en structure composite bois-béton et procédé de fabrication d'un tel plafond plat
EP3130718A1 (fr) * 2015-08-14 2017-02-15 Zimmerei Walter Brunthaler Élement composite de construction
US9809979B2 (en) 2013-05-06 2017-11-07 University Of Canterbury Pre-stressed beams or panels
EP4707488A1 (fr) 2024-09-05 2026-03-11 Fritz Egger GmbH & Co. OG Demi-produit, élément de construction composite bois-béton, utilisation et procédé

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DE19950356C2 (de) * 1999-10-19 2001-12-06 Siegfried Burglechner Mehrschichtige Bauplatte, sowie Verfahren zu ihrer Herstellung
DE10110798C2 (de) * 2000-07-11 2003-09-25 Heinz Hartmann Holzbauelement zur Erstellung einer Holzklimawand sowie Holzklimawand unter Verwendung der Holzbauelemente
DE10227099B4 (de) * 2002-06-18 2005-12-22 Weinmann Holzbausystemtechnik Gmbh Bauelement, insbesondere Deckenelement
DE20210714U1 (de) 2002-07-10 2002-11-21 Bauer, Werner, 98673 Crock Holz-Beton-Verbundelement mit integriertem Klimaelement
EP3287570A1 (fr) * 2016-08-26 2018-02-28 Sebastian Wagner Élement composite en bois et beton a utiliser comme plafond, plancher ou paroi dans un batiment
CN107882242A (zh) * 2017-10-28 2018-04-06 湖南诚友绿色建材科技有限公司 一种预制轻质空心板芯模密肋夹心板
AT520303B1 (de) 2018-02-13 2019-03-15 Engelhart Klaus Dipl Ing Verfahren zur herstellung von verbunddecken
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
CN110374242A (zh) * 2019-07-17 2019-10-25 梁涛 一种装配式叠合楼板
CN111910754B (zh) * 2020-07-22 2021-06-25 广东定源建设工程有限公司 一种混凝土预制构件及安装方法

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1528171A3 (fr) * 2003-10-23 2005-05-25 Bathon, Leander Système de construction composite bois-béton comportant des éléments de construction en bois, des couches intermédiaires et éléments de construction en béton
US8245470B2 (en) 2003-10-23 2012-08-21 Tobias Bathon Wood-concrete-composite systems
US8590239B2 (en) 2006-01-13 2013-11-26 Tobias Bathon Construction made of individual components
EP1992754A3 (fr) * 2007-05-15 2012-12-12 Universität Innsbruck Elément de raccord traction-pression
EP2055851A3 (fr) * 2007-11-03 2014-09-10 Hans Hundegger Elément de toit, de plafond ou de mur
CZ304080B6 (cs) * 2012-01-24 2013-10-02 Ceské vysoké ucení technické v Praze, Fakulta stavební, Katedra ocelových a drevených konstrukcí Sprazení nosníku na bázi dreva spojených pomocí ocelových desticek s oboustranne prolisovanými trny se základní deskou
EP2787140A1 (fr) 2013-04-04 2014-10-08 Ed. Züblin AG Plafond plat en structure composite bois-béton et procédé de fabrication d'un tel plafond plat
US9809979B2 (en) 2013-05-06 2017-11-07 University Of Canterbury Pre-stressed beams or panels
US10125493B2 (en) 2013-05-06 2018-11-13 University Of Canterbury Pre-stressed beams or panels
EP3130718A1 (fr) * 2015-08-14 2017-02-15 Zimmerei Walter Brunthaler Élement composite de construction
EP4707488A1 (fr) 2024-09-05 2026-03-11 Fritz Egger GmbH & Co. OG Demi-produit, élément de construction composite bois-béton, utilisation et procédé
WO2026052710A1 (fr) 2024-09-05 2026-03-12 Fritz Egger Gmbh & Co. Og Composant semi-fini, élément structural composite bois-béton, utilisation et procédé

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DE19818525B4 (de) 2004-11-25
EP0952271A3 (fr) 2000-12-20
DE19818525A1 (de) 1999-11-11

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