EP1582644B1 - Système de construction pour planchers mixtes en bois et béton - Google Patents

Système de construction pour planchers mixtes en bois et béton Download PDF

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Publication number
EP1582644B1
EP1582644B1 EP05004976A EP05004976A EP1582644B1 EP 1582644 B1 EP1582644 B1 EP 1582644B1 EP 05004976 A EP05004976 A EP 05004976A EP 05004976 A EP05004976 A EP 05004976A EP 1582644 B1 EP1582644 B1 EP 1582644B1
Authority
EP
European Patent Office
Prior art keywords
concrete
connectors
seatings
construction
walls
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
EP05004976A
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German (de)
English (en)
Other versions
EP1582644A1 (fr
Inventor
Martino Martinotta
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.)
Sintesi Srl
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Sintesi Srl
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Publication date
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Priority to SI200530240T priority Critical patent/SI1582644T1/sl
Publication of EP1582644A1 publication Critical patent/EP1582644A1/fr
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Publication of EP1582644B1 publication Critical patent/EP1582644B1/fr
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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
    • E04B5/17—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

  • This invention relates to a system for the construction of mixed floors, of the type in which a concrete slab is supported by wooden beams.
  • the invention relates- to the system of connecting the two materials; a plurality of seatings with undercuts, in particular seatings with a dovetailed cross-section, are formed in the beams, and connectors with wings that project upwards, so that they are embedded in the subsequent concrete casting that completes the slab, are inserted like a spring into said seatings.
  • the concrete also penetrates into said connectors, locking them in position.
  • the known technology involves laying the beams on the supporting structure of the building, inserting suitable partition elements, such as panels or the like, between the beams, laying reinforcement, and completing the floor by casting a concrete slab.
  • steel mesh is inserted into a groove in the beam and secured with resins to ensure the necessary adherence to the concrete.
  • metal connectors are secured to the beams; the threaded section of said connectors is screwed into the wood, while the remainder projects from the top of the beam and is embedded in the concrete slab.
  • connection elements may cause bearing stress, with consequent loss of the rigidity of the structure and the associated drawbacks.
  • Italian patent no. 1,278,262 describes composite products made of wood and concrete of the type comprising small wooden beams joined to complementary structural concrete elements by means of metal connectors, wherein said connectors are applied dry, each connector being constituted by a lag screw and a substantially two-dimensional element applied to the beam at the point of application of the lag screw, in order to counteract the bearing stress on the wood.
  • the connectors illustrated in this patent consist of a threaded stem which is screwed into the wood and a plate, integral with said stem, which compresses the wood at the point where the lag screw is inserted.
  • DE-C-673.556 discloses a system for making mixed wood and concrete floors, in which, for improving adherence between the two materials, a series of metal connectors are provided.
  • These connectors are inserted into seatings with undercuts provided in the wooden beams, and project from them for a certain distance, so that the projecting part can be embedded in the concrete.
  • US-A-6.186.698 discloses connecting elements apt to connect a wooden beam and another structural element.
  • the connecting element is formed as a rail section and includes at least two elastic legs cooperating as a pair having a free outer end.
  • the legs are bendable to one another into a compressed condition.
  • the outer sides of said legs are mutually divergent towards the free outer end, and are received in a groove where they resiliently engage the planar side wall portions of the groove of the construction member for holding the connecting element in the groove by friction.
  • the connecting element also has one or more wings that project from the top of the beam.
  • connection element is locked by means of metallic elements inserted into the connectors.
  • the present invention which falls into this sector, offers a system for the construction of floors with a mixed wood and concrete structure, wherein the two materials are joined by connectors applied to the beam by inserting them by means of elastic deformation into dovetailed seatings, without the aid of tools or instruments.
  • the construction system according to the invention involves joining wooden beams 1 to a concrete slab 2 by means of connectors 3.
  • a set of grooves 4, having a dovetailed cross-section or another cross-section that presents an undercut, each of which said grooves is designed to house a connector 3, is cut into the beam, for example by milling with machine tools.
  • Seatings 4 are orthogonal to beam 1, and are spaced sufficiently far apart to ensure that the intermediate section of beam is large enough to guarantee that the wood will withstand sliding stresses.
  • the connectors are made of sheet metal such as steel or another suitable material, and have the shape more clearly shown in figures 1-3 .
  • each of said connectors has a base wall 5 and two side walls 6, which converge slightly upwards and are connected to a pair of divergent wings 7.
  • base 5 and side walls 6 are substantially equal to the dimensions of the groove into which the connector is inserted, with wings 7 projecting above the beam.
  • the inclination of walls 6 is slightly less than that of the corresponding walls of the groove, so that when the connector has been inserted, the elastic force that tends to reopen walls 6 locks the connector into its seating.
  • Wings 7 are designed to be embedded in the subsequent concrete casting. On the upper edge of wings 7 there is a cavity 8 which can act as a seating for the floor reinforcement mesh or rods, which are thus retained at a certain height, ensuring a sufficiently thick covering.
  • Connectors located close to the headpieces of the beams may present a wing 13 which is long enough to be anchored in the concrete edge, as illustrated in figure 10 .
  • brackets 14 may be fitted, as shown in figures 11 and 12 ; said brackets 14 hook onto the connector of the beam headpiece on one side and are embedded in the concrete edge on the other.
  • the connectors can be attached to the wood without the use of the mechanical or chemical fixing elements required by the systems according to the prior art.
  • the panels or partition elements of the ceiling shown as no. 15 in figures 7 , 8 and 9 , are rested on the edge of the beams, the reinforcement of the slab is positioned by resting steel rods and/or mesh 16 on the upper edge of connector wings 7, and the slab is completed with a concrete casting. If steel rods are used, they can be rested in cavities 8 in the edge upper of the wings, which will thus keep them raised by a few centimetres, ensuring that they are sufficiently covered with concrete.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Road Paving Structures (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Floor Finish (AREA)

Claims (5)

  1. Système constructif pour la réalisation de planchers mixtes en bois et béton où, pour unir durablement le bois et le béton, on pratique, dans des poutres en bois (1), plusieurs logements (4) présentant des contre dépouilles et, dans lesdits logements (4), on insère une série d'éléments d'interconnexion (3) qui dépassent en partie de ces derniers de façon à être noyés dans le béton qui parachève la dalle, caractérisé par le fait que lesdits logements (4) réalisés dans les poutres de bois présentent une section en queue d'aronde, et que lesdits éléments d'interconnexion sont constitués d'éléments à ressort dotés d'une paroi de fond (5), et de deux parois latérales (6) qui, dans un premier tronçon à partir de ladite paroi de fond (5) convergent et, dans un deuxième tronçon terminal (7), divergent, les dimensions de la paroi de fond (5) et dudit premier tronçon desdites parois (6) étant pratiquement identiques aux dimensions des parois du logement en queue d'aronde (4).
  2. Système constructif pour la réalisation de planchers mixtes en bois et béton selon la revendication n° 1, caractérisé par le fait que l'inclinaison du premier tronçon (6) des parois desdits éléments de connexion (3) est moins importante que l'inclinaison des parois du logement (4), de façon que les parois desdits éléments de connexion à ressort (3) exercent une pression contre les parois de leur logement respectif.
  3. Système constructif selon la revendication n° 1 ou 2, caractérisé par le fait que lesdits éléments de connexion (3) sont ouverts dans la partie supérieure pour permettre au béton de pénétrer à l'intérieur, l'espace entre leurs parois latérales étant suffisamment important pour permettre au béton de pénétrer à l'intérieur de l'élément de connexion.
  4. Système constructif selon une quelconque des revendications précédentes, caractérisé par le fait qu'il prévoit des éléments de connexion à placer à hauteur des extrémités des poutres, lesdits éléments de connexion ayant au moins une aile (15) qui se prolonge vers l'extérieur pour être noyée dans le béton de la bordure et, quoi qu'il en soit, pour s'engager dans une armature de ladite bordure.
  5. Système constructif selon une quelconque des revendications précédentes, caractérisé par le fait que le bord libre desdits éléments de connexion (3) présente une cavité (8) constituant le siège d'un rond à béton lui-même destiné à être noyé dans le béton.
EP05004976A 2004-03-31 2005-03-08 Système de construction pour planchers mixtes en bois et béton Active EP1582644B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200530240T SI1582644T1 (sl) 2004-03-31 2005-03-08 Sistem za gradnjo meĺ anih stropov iz lesa in betona

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPC20040010 2004-03-31
IT000010A ITPC20040010A1 (it) 2004-03-31 2004-03-31 Sistema costruttivo per la realizzazione di solai misti in legno e calcestruzzo e relativi componenti per la solidarizzazione dei due materiali

Publications (2)

Publication Number Publication Date
EP1582644A1 EP1582644A1 (fr) 2005-10-05
EP1582644B1 true EP1582644B1 (fr) 2008-03-12

Family

ID=34878859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05004976A Active EP1582644B1 (fr) 2004-03-31 2005-03-08 Système de construction pour planchers mixtes en bois et béton

Country Status (5)

Country Link
EP (1) EP1582644B1 (fr)
AT (1) ATE389071T1 (fr)
DE (1) DE602005005237T2 (fr)
IT (1) ITPC20040010A1 (fr)
SI (1) SI1582644T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2636809A1 (fr) 2012-03-07 2013-09-11 Balteschwiler AG Dalle consitent d'un panoi de bois et une couche de beton

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20070084A1 (it) 2007-03-23 2008-09-24 Tecnaria S P A Connettore per il collegamento di un elemento metallico con un elemento in calcestruzzo
AT505265B1 (de) * 2007-05-15 2010-11-15 Univ Innsbruck Holz-beton-verbundelement
DE102013106918B3 (de) * 2013-07-02 2014-05-28 Bs Ingenieure Ag Holz-Beton-Verbundkonstruktion
US10156068B2 (en) 2014-09-30 2018-12-18 UNIVERSITé LAVAL Built-up system, connector thereof, and method of making same
EP3556958B1 (fr) * 2018-04-18 2020-06-03 Schmid Baugruppe Holding GmbH Elément destiné à la production d'une dalle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH147365A (de) * 1930-07-04 1931-06-15 Schaub Otto Holzbetonverbundkörper.
DE673556C (de) * 1936-09-20 1939-03-24 Otto Schaub Verbunddecke aus Holzrippen und Betonplatte
FR2702236B1 (fr) * 1993-03-03 1995-08-04 Gauthier Daniel Element de construction composite bois-beton.
DE9404642U1 (de) * 1994-03-18 1994-05-19 Friedrich Knapp GmbH, 85591 Vaterstetten Verbindungselement
IT1278262B1 (it) 1994-08-02 1997-11-17 Franco Laner Manufatti compositi in legno e calcestruzzo con dispositivi di ancoraggio puntuali, applicati a secco e relativo sistema costruttivo
DE19602400A1 (de) * 1996-01-24 1997-07-31 Heinz Wieland Holz/Beton-Verbund
DE19640880A1 (de) * 1996-10-03 1998-04-16 Wolfram Prof Dr Ing Klingsch Verbunddecke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2636809A1 (fr) 2012-03-07 2013-09-11 Balteschwiler AG Dalle consitent d'un panoi de bois et une couche de beton

Also Published As

Publication number Publication date
DE602005005237D1 (de) 2008-04-24
ATE389071T1 (de) 2008-03-15
DE602005005237T2 (de) 2009-03-12
SI1582644T1 (sl) 2008-08-31
EP1582644A1 (fr) 2005-10-05
ITPC20040010A1 (it) 2004-06-30

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