EP2080845B1 - Elément préfabriqué en bois - Google Patents

Elément préfabriqué en bois Download PDF

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Publication number
EP2080845B1
EP2080845B1 EP09000773A EP09000773A EP2080845B1 EP 2080845 B1 EP2080845 B1 EP 2080845B1 EP 09000773 A EP09000773 A EP 09000773A EP 09000773 A EP09000773 A EP 09000773A EP 2080845 B1 EP2080845 B1 EP 2080845B1
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EP
European Patent Office
Prior art keywords
wood
solid wood
beams
screws
prefabricated
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.)
Not-in-force
Application number
EP09000773A
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German (de)
English (en)
Other versions
EP2080845A1 (fr
Inventor
Dieter Kazenwadel
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Individual
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Individual
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Publication of EP2080845A1 publication Critical patent/EP2080845A1/fr
Application granted granted Critical
Publication of EP2080845B1 publication Critical patent/EP2080845B1/fr
Not-in-force 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
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/12—Load-carrying floor structures formed substantially of prefabricated units with wooden beams
    • 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
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
    • 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

Definitions

  • the invention relates to a prefabricated building element for buildings, with a variety of edgewise arranged side by side, interconnected solid wood beams.
  • the prefabricated wooden building element can be used as a ceiling element or as a wall element in the construction of buildings.
  • CH 687398 A5 discloses a wood prefabricated element according to the preamble of claim 1.
  • Wooden ceilings are made of wood, if they are not poured from concrete or. Incorporated as concrete craft, as a wooden beam ceiling or Brettstapel- or Brett harshdecke. In the case of board stacked or glued laminated timber boards, individual boards are needled, stapled or glued together. The width and height of the boards are determined by the length of the boards and the load capacity of the ceiling.
  • the above ceilings are composed of industrially prefabricated ceiling elements, the thickness of the boards varies depending on the manufacturer.
  • the invention has for its object to provide a wood prefabricated element with high sound insulation, which can be used for a building ceiling without additional impact sound insulation.
  • the wood prefabricated element is made of wood with high load-bearing capacity and sound insulation, while avoiding foreign materials. It is characterized by the positional arrangement of solid beams made of solid construction timber and / or dried timber and pressure-resistant sound-absorbing wood fiber insulation panels alternately, wherein the layers are connected to each other by suitable measures that meet the static requirements.
  • the mechanical connection is carried out according to static calculations.
  • the prefabricated wooden building element has a typical length of 1 to 18 m and is preferably 2 to 13 m long. Its thickness is between 80 and 300 mm, preferably 10 to 240 mm.
  • the mechanical connection of the solid wood beams and the Holzfaserdämmplatten is carried out according to claim 1 on suitable rod-shaped screws, which are approved by the building authorities and which permanently withstand the occurring shear, tensile and compressive forces and can reliably transfer them.
  • the advantages achieved by the invention are in particular that the sound insulation, especially for impact and airborne sound, and the sound level of noise from the premises of the building is greatly reduced. This can be achieved with low Holzfertigbauelementdicke.
  • the vibration behavior of the wood prefabricated element is significantly improved by the layer structure with the pressure-resistant insulating material. Due to the insulation layers, the dead load of the wood prefabricated element decreases with increasing sound insulation. Furthermore, the load distribution is optimized, which is particularly advantageous when the wood prefabricated element is used as a ceiling element. In addition, the swelling and shrinkage behavior of the wood prefabricated element is largely compensated by the wood fiber insulation panels.
  • the wood fiber insulation panels at least on a flat side of the ceiling element on the solid wood beams before. This is particularly advantageous if the wood prefabricated element is installed as a ceiling and have the supernatants of the wood fiber insulation board facing upwards and form a support for a wooden floor. A further reduction of the still possible airborne sound transmission from the wooden floor to the solid wood beam can be achieved if the spaces between the supernatants are filled with a bed of insulating material. The gaps can also be used as an installation channel for electrical cables or for pipelines.
  • the solid wood beams protrude at least on a flat side over the wood fiber insulating panels. This is particularly useful when using the wood prefabricated element as a wall element.
  • the depressions formed between the projections of the solid wood beams on the one hand reduce the heat transfer and the sound transmission to the Holzfaserdämmplatten and on the other hand can also be used to cover the laying of cables, pipes or the like.
  • the upwardly facing flat side is ideally flat, while the flat side with the above solid wood beams usually facing down, so that the ceiling panel can be attached waiving a slatted frame directly to the solid wood beams.
  • the height of the solid wood beams and the wood fiber insulation panels is different from the use of the wood prefabricated element according to the invention as a ceiling element with at least one flat flat side of the wood prefabricated element.
  • the invention also includes embodiments in which the Holzfaserdämmplatten protrude on both flat sides of the wood prefabricated element on the solid wood beams or in which the solid wood beams on both flat sides of the wood prefabricated element project beyond the wood fiber insulation panels.
  • some of the solid wood beams of the wood prefabricated element are arranged offset from each other perpendicular to the longitudinal extent.
  • the above solid wood beams projecting solid wood beams can be when using the wood prefabricated element for a ceiling, for example for Supports of partitions can be used, so that a direct load transfer takes place in the bearing solid wood beams.
  • the raised solid wood beams form wide channels between them, which serve as ventilation ducts for such a ceiling or can be filled with concrete.
  • the above solid wood beams form a support for a screed or wooden floorboards with additional footfall sound insulation.
  • the solid beams are connected to each other by a number of steel screws running transversely to the longitudinal extent of the solid wood beams.
  • the screws also penetrate the wood fiber insulation boards and keep them stable between the solid wood beams, with the solid wood beams pressing the wood fiber insulation boards.
  • the screws have a typical diameter of 6 to 18 mm, preferably 6.5 to 14 mm and a screw length of 120 to 1500 mm, preferably 160 to 420 mm.
  • the screws used are characterized by the fact that they produce a statically calculated connection between the solid wood beams made of structural wood and the Hofzmaschinedämmplatte. Suitable screws with approval are, for example, the 2-9.1-665 Heco Topix CC. Instead of these screws equivalent other screws can be used.
  • the solid wood beams crosswise screwed together in at least one row, wherein at least one of the intersecting screws in the direction of the longitudinal extent of the solid wood beams is inclined
  • the screwing of the solid wood beams is not perpendicular, but obliquely to the wood fiber direction, the In The longitudinal direction of the solid wood beams runs
  • the inclination of the screws is between 30 and 70 °, preferably 45 °.
  • Prerequisite for the fulfillment of the static requirements of the prefabricated timber element is the large displacement module of the helical screw connection of the full-thread screws.
  • the sliding stiffness of the diagonal screw connection is several times greater than in a screw connection at right angles to the wood fiber direction. Depending on the loads, the stiffness can be due to the lateral spacing of adjacent pairs of screws and controlled by the screw diameter and the screw length.
  • the solid wood beams are partially screwed together in sections in at least one row, wherein the screws arranged in parallel are each inclined in sections in the opposite direction of the longitudinal extent of the solid wood beams.
  • the screws preferably extend into the two sections or halves of the solid wood beams, which are defined by the middle of the solid wood beams, in each case parallel to one another with opposite inclination, the screw tips of the respective nearest end faces of the wood prefabricated element preferably being further than the screw heads.
  • the screw connections are mirror-inverted.
  • the screws are arranged in spaced apart rows. At least one of the rows ideally contains intersecting pairs of screws, in which preferably both screws are inclined in the longitudinal direction of the solid wood beams. However, the direction of inclination of the two screws is different. Appropriately, it also appears to provide two rows with such opposing oppositely directed screw pairs with distance from each other. Alternatively, at least one of the rows ideally includes sections of screws arranged in parallel with each other, which have in the sections an equal inclination in the longitudinal direction of the solid wood beams, wherein the screws from section to section have an opposite inclinations to each other.
  • a row is arranged parallel to the row with the inclined arranged screws with mutually parallel screws, which extend preferably perpendicular to the longitudinal extent of the solid wood beams. It is particularly effective to arrange the row with the parallel extending screws between two rows of intersecting screw pairs and / or sections of oppositely inclined screws.
  • the inclined extending screws of the wood prefabricated element are arranged according to a latticework.
  • the screws of the latticework may have the same or a different distance from each other. In this case, depending on the distance, the length and the degree of inclination of the screws and depending on the width of the solid wood beams and the thickness of Holzfaserdämmplatten vortellhaft note more than two adjacent screws more or less.
  • Such a screw connection combines the solid wood beams against tensile, compressive and shear forces extremely stable.
  • the screws enforce several solid wood beams and the interposed Holzfaserdämmplatten, the screws may have different lengths.
  • An ideal embodiment is considered, in which the screws pass through at least three solid wood beams and two wood fiber insulating panels.
  • several of the wood prefabricated elements according to the invention can be arranged side by side to increase a wall or ceiling surface and be connected to one another longitudinally during the installation of the prefabricated wooden building elements.
  • the connection can be made by cross-bolting the butting solid wood beams along their longitudinal edge.
  • it can also be provided with one or more mutually associated grooves and springs a tongue and groove connection to connect the wood prefabricated elements form-fitting with each other.
  • the springs may be formed loosely or molded on the butting solid wood beams. It is also possible to perform the abutting longitudinal sides of the solid wood beams with mirror-image arranged overlapping steps and to connect the steps by means of parallel screwing together.
  • the wood prefabricated element according to the invention is designed to be load-bearing for use as a ceiling element or wall element for a building.
  • the figures of the drawings show the finished wood component in a horizontal position, as it is arranged as a ceiling element.
  • FIG. 1 shows a wood prefabricated element 1, with a number of solid wood beams 2, between each of which a wood fiber insulation board 3 is arranged.
  • This wood prefabricated element is not part of the invention.
  • the solid wood beams 2 and the wood fiber boards 3 are connected to each other by means of a number transverse to the longitudinal extent of the solid wood beams 3 screws 4.
  • the solid wood beams 2 and the wood fiber insulation panels 3 have a uniform length, an identical height, but different widths or thicknesses an identical height, but different widths or strengths and are arranged to each other so that a flat top flat side 5 results as a bottom side for a space above it and a flat lower flat side 6 as a ceiling side for a space below.
  • the illustrated ratio of the width of the solid wood beams 2 and the thickness of the Holzmaschinedämmplatten 3 is exemplary and can be set arbitrarily.
  • the in the Figures 2 . 3 illustrated embodiments of the wood prefabricated element 1 according to the invention differ from the wood prefabricated element in the FIG. 1 in that the heights of the solid wood cots 2 and the wood fiber insulation plates 3 are different.
  • the wood fiber insulation panels 3 are higher than the solid wood beams 2 formed and arranged to each other, that also results in a flat ceiling side 6. Due to the different height, the wood fiber insulation panels 3 are on the bottom side 5 on the solid wood beams 2 before.
  • the supernatants 7 of the wood fiber insulation panels 3 serve as a support for a bottom plate, not shown in the drawing, screed or planks. The laterally limited by the supernatants 7 spaces 8 can be used as Installadonskanäle or filled with loose insulation.
  • FIG. 3 shown secondpursbeisplel differs from the first embodiment FIG. 2 in that the wood fiber insulation panels 3 are formed lower than the solid wood beams 2.
  • the solid wood beams 2 and the wood fiber insulation panels 3 together form a flat upper flat side 5 as a bottom side for the cover element.
  • the solid wood beams 2 protrude beyond the wood fiber insulation panels 3 on the opposite side of the Oeckenseite 6.
  • the projections 9 of the Massilvholzbalken 2 can be fixed directly in the drawing, not shown ceiling panel.
  • the projections 9 channels 10 which can be used for laying cables or pipes.
  • FIG. 4 illustrated third embodiment of the wood prefabricated element 1 according to the invention substantially corresponds to that in the FIG. 1 pictured Wood finished component.
  • some, by several solid wood beams 2 and wood fiber insulation panels 3 separate solid wood beams 2 'relative to the other solid wood beams 2 and the wood fiber insulation panels 3 are arranged offset upwards.
  • the channels 10 'between the projections 9' of the solid wood beams 2 ' form space for ventilation ducts of the ceiling element, as soon as a continuous floor is placed on the projections 9'.
  • On the solid wood beams 2 'not shown in the drawing partitions can be placed.
  • FIG. 5a shows a plan view of the flat side 5, 6 of the wood prefabricated element 1
  • FIG. 5b a side view of an end face 11 of the wood prefabricated element 1.
  • the screws 4 are arranged in three superimposed rows 12, 12 ', 12 "The screws 4 pass through a plurality of solid wood beams 2 and the interposed wood fiber insulation panels 3.
  • the wood prefabricated elements 1 are in the upper row 12 and in the lower Row 12 "of the screws 4 screwed in parallel and in the middle row 12 'of the screws 4 in parallel.
  • crosswise is meant that the screws 4 in the rows 12 and 12 "in the illustration according to FIG.
  • FIG. 5a cross more or less.
  • FIG. 5a is a more borderline representation, as a crossing occurs only in the area of the screw tips. In principle, however, cross-over will be stronger, ie in the FIG. 5a In this presentation, there would be more an "X" than a "V” as shown here. As screws 4 self-tapping full threaded wood screws made of steel with different thread pitches are used.
  • FIGS. 6a to 6d show various ways to connect to the longitudinal sides 13 adjacent wooden prefabricated elements 1 along the longitudinal sides 13 together.
  • the connection of the wood prefabricated elements 1 is carried out depending on the design of each edge colliding solid wood beams.
  • FIG. 6a shows a cross fitting with screws 4 ', wherein the edge solid wood beams 2 corresponding to the internal solid wood beams 2 are executed.
  • FIG. 6b shows wood prefabricated elements 1 with edge solid wood beams 2, which are provided with complementary trained cross-step 14, the steps 14 by means of parallel screw with screws 4 'which are perpendicular to the surface 5 of the timber construction element 1, connected to each other.
  • the parallel and the Wienverschraubung takes place in each case along the edges 15 of the wood prefabricated elements. 1
  • FIGS. 6c, d show tongue and groove joints of the wood prefabricated elements 1, so that a screw is not mandatory.
  • grooves 16 and springs 17 are respectively provided along the longitudinal sides, which engage in one another after the preparation of the wood prefabricated elements 1.
  • FIG. 6c Pictured possibility a loose spring 17 is used, accordingly grooves 16 are provided on the abutting solid wood beams 2.
  • the spring 17 is integrally formed on a solid wood beam 2.
  • wood fiber insulation panels 3 can be inserted only after several solid wood beams 2. It is also possible that at low loadings the screws 4 are not arranged crosswise but only obliquely inclined to the longitudinal extent of the solid wood beams 2. The screws 4 are inclined from the middle of the solid wood beams 2 each of the end faces 11 away and extend in the two halves of the solid wood beams 2 each parallel to each other. This type of sectionally inclined parallel screw connection absorbs the pushing and pushing forces acting in these areas in a manner that is as good as a cross-threading over the length of the solid wood beams 2.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Building Environments (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (9)

  1. Elément préfabriqué en bois (1) pour des bâtiments, avec une multiplicité de poutres en bois massif (2) oblongues, disposées parallèlement les unes aux autres, placées de chant, qui sont raccordées les unes aux autres par le biais de vis s'étendant dans les poutres en bois massif (2) transversalement à une direction longitudinale des poutres en bois massif (2), caractérisé en ce que, entre les poutres en bois massif (2, 2') sont disposées des plaques isolantes en fibres de bois (3) oblongues, orientées de la même façon que les poutres en bois massif (2, 2'), qui appuient avec des côtés plats contre des côtés plats des poutres en bois massif (2, 2'), les poutres en bois massif (2, 2') et les plaques isolantes en fibres de bois (3) étant raccordées entre elles par un certain nombre de vis (4) placées transversalement à l'extension longitudinale des poutres en bois massif (2, 2') et des plaques isolantes en fibres de bois (3) de sorte que les vis (4) traversent respectivement plusieurs poutres en bois massif (2, 2') et la plaque isolante en fibres de bois (3) respectivement située entre elles, et
    les plaques isolantes en fibres de bois (3) dépassent des poutres en bois massif (2, 2') au moins sur un côté plat (5, 6) de l'élément préfabriqué en bois (1), ou
    les poutres en bois massif (2, 2') dépassent des plaques isolantes en fibres de bois (3) au moins sur un côté plat (5, 6) de l'élément préfabriqué en bois (1), ou
    certaines des poutres en bois massif (2, 2') de l'élément préfabriqué en bois (1) sont disposées de façon décalée entre elles perpendiculairement à l'extension longitudinale de sorte qu'elles dépassent des plaques isolantes en fibres de bois (3) et des autres poutres en bois massif (2, 2').
  2. Elément préfabriqué en bois selon la revendication 1, caractérisé en ce que les poutres en bois massif (2, 2') sont vissées les unes aux autres en croix en au moins une rangée (12, 12', 12"), au moins respectivement une des vis (4) se croisant étant inclinée en direction de l'extension longitudinale des poutres en bois massif (2, 2').
  3. Elément préfabriqué en bois selon la revendication 1 ou la revendication 2, caractérisé en ce que les poutres en bois massif (2, 2') sont vissées les unes aux autres partiellement de façon parallèle en au moins une rangée, les vis (4) disposées partiellement de façon parallèle étant inclinées respectivement partiellement en direction opposée à l'extension longitudinale des poutres en bois massif (2, 2').
  4. Elément préfabriqué en bois selon la revendication 1, caractérisé en ce que les vis sont disposées en rangées distantes les unes des autres.
  5. Elément préfabriqué en bois selon une des revendications 2 à 4, caractérisé en ce que, parallèlement à la rangée (12, 12") avec les vis (4) disposées de façon inclinée, il est disposé une rangée (12') avec des vis parallèles les unes aux autres qui s'étendent de préférence perpendiculairement à l'extension longitudinale des poutres en bois massif.
  6. Dispositif selon une des revendications 2 à 5, caractérisé en ce que les vis (4) sont disposées selon une grille.
  7. Dispositif selon une des revendications précédentes, caractérisé en ce que la vis (4) est une vis à bois à filet plein en acier qui présente de préférence différents pas de vis.
  8. Dispositif selon une des revendications précédentes, caractérisé en ce que les vis (4) présentent différentes longueurs.
  9. Elément préfabriqué en bois selon la revendication 1, caractérisé en ce que les vis (4) traversent respectivement trois poutres en bois massif (2, 2') et respectivement deux plaques isolantes en fibres de bois (3) situées entre elles.
EP09000773A 2008-01-21 2009-01-21 Elément préfabriqué en bois Not-in-force EP2080845B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202008000895U DE202008000895U1 (de) 2008-01-21 2008-01-21 Massiv-Holz-Decken-Element

Publications (2)

Publication Number Publication Date
EP2080845A1 EP2080845A1 (fr) 2009-07-22
EP2080845B1 true EP2080845B1 (fr) 2011-02-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000773A Not-in-force EP2080845B1 (fr) 2008-01-21 2009-01-21 Elément préfabriqué en bois

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EP (1) EP2080845B1 (fr)
AT (1) ATE499490T1 (fr)
DE (2) DE202008000895U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3336272A1 (fr) 2016-12-16 2018-06-20 Tschopp Holzbau AG Composant en bois préfabriquée et mur un système de parois et de plafonds acoustiques

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2316624A3 (fr) * 2009-10-30 2013-06-19 Sergey Evgenievic Dorozhkin Panneau en bois multicouche
DE202019001919U1 (de) 2019-05-02 2019-07-09 Vente-Holz-Gesellschaft mit beschränkter Haftung Trägerelement für Decken, Zwischendecken, Ständergewerke

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687398A5 (de) * 1994-03-22 1996-11-29 Alfred Zenger Massivholzbauelement fuer die Herstellung von flaechigen Konstruktionen.
FR2789102B1 (fr) * 1999-02-03 2001-04-13 Cbt Concept Bois Technologie S Dalle de construction et assemblage de telles dalles
DE20011080U1 (de) * 2000-06-23 2000-10-12 Adolf Muenchinger Holz Imp Exp Kantel
DE20119280U1 (de) * 2001-11-28 2002-04-11 Bauer Werner Brettstapelelement mit zug- und druckfesten Verbindungselementen
FR2848232A1 (fr) * 2002-12-10 2004-06-11 Jean Luc Sandoz Structure antibruit
ITBZ20050031A1 (it) * 2005-06-17 2006-12-18 Reinverbund S R L Elemento di parete per edificio e panello composito di strati di legno

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3336272A1 (fr) 2016-12-16 2018-06-20 Tschopp Holzbau AG Composant en bois préfabriquée et mur un système de parois et de plafonds acoustiques

Also Published As

Publication number Publication date
ATE499490T1 (de) 2011-03-15
DE202008000895U1 (de) 2008-05-08
EP2080845A1 (fr) 2009-07-22
DE502009000384D1 (de) 2011-04-07

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