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EP0280228B1 - Holz-Beton-Verbunddecke - Google Patents

Holz-Beton-Verbunddecke Download PDF

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Publication number
EP0280228B1
EP0280228B1 EP88102559A EP88102559A EP0280228B1 EP 0280228 B1 EP0280228 B1 EP 0280228B1 EP 88102559 A EP88102559 A EP 88102559A EP 88102559 A EP88102559 A EP 88102559A EP 0280228 B1 EP0280228 B1 EP 0280228B1
Authority
EP
European Patent Office
Prior art keywords
tube
floor
beams
concrete
wood
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.)
Expired - Lifetime
Application number
EP88102559A
Other languages
English (en)
French (fr)
Other versions
EP0280228A1 (de
Inventor
Alain Grimaud
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.)
ENTREPRISE PARIS OUEST
Original Assignee
ENTREPRISE PARIS OUEST
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ENTREPRISE PARIS OUEST filed Critical ENTREPRISE PARIS OUEST
Priority to AT88102559T priority Critical patent/ATE65100T1/de
Publication of EP0280228A1 publication Critical patent/EP0280228A1/de
Application granted granted Critical
Publication of EP0280228B1 publication Critical patent/EP0280228B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04B5/16—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
    • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
    • E04B5/261—Monolithic filling members
    • E04B5/263—Monolithic filling members with a flat lower surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • 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
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0248—Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements

Definitions

  • the present invention relates to the production or reinforcement of floors formed on wooden beams. It applies in particular when such beams can be brought to the site of an existing construction to renovate, transform, or consolidate, such constructions can be for example residential buildings, workshops, walkways or bridges.
  • Its resistant profile is a T-profile, the lower part of which is a wooden beam and the upper part of a concrete slab, generally of compression. This slab was cast on a formwork lost or not, placed on the beams or between them.
  • a distribution trellis made of steel and embedded in the concrete ensures the resistance of the slab to punctures and transverse bending.
  • the composite beams formed by this T-shaped profile are most often simply supported on their ends.
  • This case is the simplest and will be considered below by way of example, it being understood that, if the beams are locally embedded or bear on intermediate supports, the forces are locally reversed.
  • the composite beams work in simple bending.
  • Their neutral fiber is preferably located in the vicinity of the lost formwork, the dimensions of the wood and the concrete being chosen accordingly.
  • the concrete works in compression, the wood in tension, in the longitudinal direction, and the connectors support the internal shearing forces which are exerted between wood and concrete in the same direction.
  • the connectors are formed by vertical nails partially driven into the upper faces of the joists through the formwork before the slab is poured. The head and the upper part of each of these nails is embedded in the concrete during this pouring.
  • a floor is described in an article by Godycki et al. "Verbunddecke aus Holzrippen und Betonplatte” (Bauingenieur 59 (1984) 477-483, Springer-Verlag, German Federal Republic).
  • Such connectors have the disadvantage that their middle and lower sections flex easily under the internal longitudinal forces mentioned above. They then tilt in the wood. This bending of the connectors results in deformation of the floor and a reduction in its resistance.
  • the connectors are also metallic and they are rigid. They are formed by connection plates made of sheet metal and extending vertically and longitudinally in contact with the two sides of each beam. Pointed transverse horizontal nailing teeth can be formed by cutting and bending horizontally certain areas of each such plate. They penetrate into the side of the beams to fix the plate during an operation which can be called "nailing". This operation can however also be carried out using ordinary horizontal transverse nails passing through the plate.
  • the upper part of the plate protrudes above the beam and is cut to form pointed vertical connection teeth which pass through the formwork when it is placed on these beams and which are then embedded in the concrete of the slab.
  • the object of the present invention is to economically produce a wood-concrete collaboration floor of increased strength. It aims more particularly to produce connectors and to put them into service in such a floor in a simple and effective manner which avoids the drawbacks indicated above.
  • each of said connectors has the form of a tube, said lower section of this tube occupying a housing hollowed out in the wood of the upper face of a so-called beam so that this section constitutes, with respect to said internal longitudinal forces, an extended bearing surface of this tube on the wall of this housing and that the stiffness of this tube distributes these forces over this entire bearing surface.
  • This tube will hereinafter be called connector tube.
  • said beams When producing such a floor, said beams are placed in said longitudinal direction which is horizontal.
  • said connector tubes which are for example metallic. Their lower sections are driven into grooves provided for this purpose in the upper faces of the beams, their axes being vertical. Their upper sections are then embedded in the concrete when the slab is poured. Their role is to prevent the relative horizontal displacement of the wooden beams and the concrete slab when the floor is subjected to bending forces.
  • Figure 1 shows a view of a floor according to the invention in partial section through a longitudinal vertical plane.
  • FIG. 2 represents a partial view of the same floor in section through a transverse vertical plane II-II of FIG. 1.
  • FIG. 3 represents a perspective view of a connector tube of this floor, before the incorporation of this connector tube into this floor.
  • the floor given by way of example comprises wooden beams or joists such as 2 which can be solid or laminated, and which extend longitudinally as well as their fibers.
  • a lost formwork 4 of known type rests on these beams.
  • a layer of sound and thermal insulation 6 is placed on this formwork, it being understood that this layer can be omitted without loss of the specific advantages of the present invention.
  • a concrete slab 8 is poured on this layer. It is reinforced in a known manner by a metallic distribution trellis which comprises transverse reinforcements such as 10 and longitudinal reinforcements such as 12.
  • the center line between beams can be from 0.6 to 1.2 m approximately, for example 0 , 7m.
  • Connector tubes 14 extend vertically and each have a lower section 14B embedded in a beam 2, and an upper section 14A embedded in the slab 8, for example 2 cm from the upper face thereof.
  • the trellis 10, 12 is placed on these connector tubes which makes it possible to maintain its altitude before and during the pouring of this slab.
  • Such connector tubes could also have a non-embedded intermediate section at the level of the formwork 4 and of the insulation layer 6.
  • the formwork 4 and the insulation layer 6 have been drilled with holes 5 which are wider than the connector tubes so that, when the slab is poured, the concrete fills them without segregation on either side of the walls of the connectors 14.
  • the diameter of each hole in the formwork 4 is however sufficiently limited so that the edge of the latter rests on the beam 2 all around the hole.
  • the connector tubes 14 have a circular section of 40 to 100 mm in diameter depending on the span of the beams and a height of 8 to 12 cm.
  • the thickness of the sheet which constitutes them is for example 2mm.
  • the depth of the groove 15 is for example 4 cm.
  • outside and inside diameters of this tool are for example chosen exactly equal to those of the connector tubes, which then requires the application of a moderate vertical force to drive these tubes.
  • the connector tubes are made of structural steel. They could be made of other materials with high and homogeneous mechanical resistance, such as resins reinforced with glass fibers, for example.
  • a vertical slip between the concrete slab and the connector could occur for example in the presence of high frequency alternating loads. It is prevented by simply leaving the saw burrs of the tubes on the upper edge for example. It could also be by welding the reinforcements.
  • cylindrical connector tubes of circular section could be produced in the form of tubes split along a generator so as to be able to easily adapt to housings of slightly different diameters.

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  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)

Claims (10)

  1. Holz-Beton-Verbundboden, mit:
    - Holzbalken (2), die sich in einer Längsrichtung erstrecken und die in einer Querrichtung aufeinander in einer im wesentlichen waagrechten Balkenwerkebene folgen, wobei die Balken auf Stützen zum Tragen des Bodens ruhen und jeder Balken eine Oberseite, eine Unterseite und zwei Seitenflanken besitzt,
    - einer Betonplatte (8), die auf den Balken zur Bildung der Bodenfläche und zur Unterstützung der Plattenfestigkeit angebracht ist,
    - und Verbindern, die jeweils mit einem unteren Abschnitt in einen der Balken und mit einem oberen Abschnitt (14A) in die Platte eingebettet sind, wobei die Verbinder eine Steifigkeit besitzen, die es ihnen ermöglicht, ohne spürbare Verformung zwischen dem Beton der Platte und dem Holz der Balken die inneren Längskräfte zu übertragen, welche sich aus den auf den Boden wirkenden Biegekräften ergeben,
    - wobei der Boden dadurch gekennzeichnet ist, daß jeder Verbinder die Gestalt eines Rohrs (14) besitzt und der untere Abschnitt (14B) dieses Rohrs in einer Ausnehmung (15) sitzt, die in der Oberseite eines Balkens (2) vorgesehen ist, derart, daß dieser Abschnitt gegenüber den inneren Längskräften eine ausgedehnte Stützfläche des Rohrs auf der Wandung dieser Ausnehmung bildet und daß die Steifigkeit dieses Rohrs diese Kräfte über die gesamte Stützfläche verteilt, wobei das Rohr ein Verbindungsrohr ist.
  2. Boden nach Anspruch 1, dadurch gekennzeichnet, daß die Ausnehmung (15) und der untere Abschnitt (14B) des Verbindungsrohrs in der Weise hergestellt sind, daß die äußere Wand dieses Abschnitts mit im wesentlichen ihrer gesamten Oberfläche ständig gegen die Wand dieser Ausnehmung anliegt.
  3. Boden nach Anspruch 1, dadurch gekennzeichnet, daß das Verbindungsrohr (14) und die Ausnehmung (15) einen kreisförmigen Querschnitt besitzen, um eine einfache Fabrikation und leichte Herstellung der Ausnehmung im Holzbalken zu ermöglichen.
  4. Boden nach Anspruch 3, dadurch gekennzeichnet, daß die Ausnehmung in Gestalt einer Nut (15) ausgebildet ist, die einen Kern des Holzes des Balkens stehenläßt.
  5. Boden nach Anspruch 1, dadurch gekennzeichnet, daß der Durchmesser des Verbindungsrohrs (14) ausreicht, um dem Beton das Eindringen in den Innenraum des oberen Abschnitts (14A) des Rohrs beim Gießen der Betondecke (8) ohne merkliche Entmischung ermöglicht, derart, daß die Einbettung dieses Abschnitts in den Beton nach der Aushärtung des Betons verstärkt wird.
  6. Boden nach Anspruch 1, dadurch gekennzeichnet, daß das Verbindungsrohr (14) aus einem Material besteht, das eine höhere und/oder homogenere mechanische Festigkeit als diejenigen des Holzes der Balken (2) und des Betons der Platte (8) besitzt.
  7. Boden nach Anspruch 3, dadurch gekennzeichnet, daß der Durchmesser des Verbindungsrohrs (14) ungefähr zwischen 30 und 130 mm liegt.
  8. Boden nach Anspruch 1, dadurch gekennzeichnet, daß die Höhe des Verbindungsrohrs (14) ungefähr zwischen 6 und 15 cm liegt.
  9. Boden nach Anspruch 1, dadurch gekennzeichnet, daß der untere Abschnitt (14B) des Verbindungsrohrs (14) in die Oberseite des Holzbalkens (2) in einer Länge eindringt, die geringer als die Hälfte der Höhe dieses Balkens ist.
  10. Boden nach Anspruch 1, dadurch gekennzeichnet, daß das Verbindungsrohr (14) einen Durchmesser besitzt, der kleiner als die Breite des Holzbalkens (2) in Querrichtung ist, und daß sein unterer Abschnitt (14B) auf Abstand zu den Flanken des Balkens gehalten ist, unter Belassung einer gewissen Holzdicke zu den Flanken, um gegen die Wärme und/oder die Korrosion geschützt zu sein.
EP88102559A 1987-02-26 1988-02-22 Holz-Beton-Verbunddecke Expired - Lifetime EP0280228B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102559T ATE65100T1 (de) 1987-02-26 1988-02-22 Holz-beton-verbunddecke.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702559 1987-02-26
FR8702559A FR2611778B1 (fr) 1987-02-26 1987-02-26 Plancher a collaboration bois-beton

Publications (2)

Publication Number Publication Date
EP0280228A1 EP0280228A1 (de) 1988-08-31
EP0280228B1 true EP0280228B1 (de) 1991-07-10

Family

ID=9348349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102559A Expired - Lifetime EP0280228B1 (de) 1987-02-26 1988-02-22 Holz-Beton-Verbunddecke

Country Status (7)

Country Link
US (1) US4841703A (de)
EP (1) EP0280228B1 (de)
AT (1) ATE65100T1 (de)
CA (1) CA1322668C (de)
DE (1) DE3863556D1 (de)
ES (1) ES2025226B3 (de)
FR (1) FR2611778B1 (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP2636809A1 (de) 2012-03-07 2013-09-11 Balteschwiler AG Deckenplatte bestehend aus einer Holzplatte und einer Betonschicht

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FR2702236B1 (fr) * 1993-03-03 1995-08-04 Gauthier Daniel Element de construction composite bois-beton.
FR2706802A1 (en) * 1993-06-24 1994-12-30 Weisrock Ets Robert Joining device for wooden beams
DE4415906A1 (de) * 1994-05-06 1995-11-23 Michael Schellheimer Fachwerkhaus
FR2727993A1 (fr) * 1994-12-13 1996-06-14 Soprese Structure mixte bois-beton destinee notamment a la realisation de tabliers d'ouvrages d'art
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FR2774112B1 (fr) 1998-01-27 2000-03-17 Archipente Element de paroi composite bois-beton
FR2776723B1 (fr) * 1998-03-30 2000-06-09 Hilti France Dispositif de fixation dans le bois
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ATE215159T1 (de) * 1998-12-23 2002-04-15 Habitat Legno Spa Verbindungsmittel für holz-beton konstruktionen
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ITCO20050010A1 (it) * 2005-03-14 2006-09-15 Giovanni Cenci Procedimento applicabile sia per la produzione in stabilimento sia per la costruzione in opera di elementi strutturali compositi ottenuti dall'unione incollata del legno o dei suoi derivati con il calcestruzzo allo stato di impasto fresco
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ITTO20070802A1 (it) * 2007-11-12 2008-02-11 Uni Degli Studi Di Bergamo Connettore tubolare per il collegamento di travi miste legno calcestruzzo.
DE102009029900A1 (de) * 2009-06-19 2011-01-05 Kronen-Hansa-Werk Gmbh & Co. Kg Bauwerk, zum Beispiel Gebäude
US8429876B2 (en) * 2009-08-27 2013-04-30 Eugenio Santiago Aburto Concrete rib construction method
AT511220B1 (de) * 2011-04-08 2013-01-15 Cree Gmbh Deckenelement zur ausbildung von gebäudedecken
US8661768B2 (en) * 2011-04-11 2014-03-04 Structural Technologies, Llc Reinforced balcony and method of reinforcing a balcony
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
RU2496957C1 (ru) * 2012-04-26 2013-10-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Способ усиления деревянных балок междуэтажных перекрытий
CN103726669B (zh) * 2013-12-31 2016-03-02 江苏建筑职业技术学院 采用钢筋混凝土板在原有建筑物上增加隔层的方法
PL3201405T3 (pl) * 2014-09-30 2023-07-17 UNIVERSITé LAVAL Układ zintegrowany, jego element złączny i sposób jego wytwarzania
JP6943581B2 (ja) * 2017-03-06 2021-10-06 大成ユーレック株式会社 壁梁接合構造
CN110344530B (zh) * 2019-06-20 2021-03-02 浙江大东吴建筑科技有限公司 一种局部叠合板连接节点及其施工方法
CN111173128B (zh) * 2020-02-25 2020-09-04 江苏丰阳建设工程有限公司 一种应用于分段浇筑法的混凝土结构
FR3113293B1 (fr) 2020-08-10 2022-12-16 Gn Invest Bâtiment à ossature bois et plancher béton
EP4416344A1 (de) 2021-10-17 2024-08-21 Implenia Schweiz AG Holz-beton-verbunddecke mit flächigem holzelement, verfahren zu ihrer herstellung sowie baute mit einer solchen holz-beton-verbunddecke

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2636809A1 (de) 2012-03-07 2013-09-11 Balteschwiler AG Deckenplatte bestehend aus einer Holzplatte und einer Betonschicht

Also Published As

Publication number Publication date
EP0280228A1 (de) 1988-08-31
ES2025226B3 (es) 1992-03-16
FR2611778A1 (fr) 1988-09-09
ATE65100T1 (de) 1991-07-15
CA1322668C (fr) 1993-10-05
US4841703A (en) 1989-06-27
FR2611778B1 (fr) 1992-04-24
DE3863556D1 (de) 1991-08-14

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