EP1674631A1 - Floor support assembly and production process for such a floor - Google Patents

Floor support assembly and production process for such a floor Download PDF

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Publication number
EP1674631A1
EP1674631A1 EP05292636A EP05292636A EP1674631A1 EP 1674631 A1 EP1674631 A1 EP 1674631A1 EP 05292636 A EP05292636 A EP 05292636A EP 05292636 A EP05292636 A EP 05292636A EP 1674631 A1 EP1674631 A1 EP 1674631A1
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EP
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Prior art keywords
beams
slab
reserves
plates
longitudinal
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Granted
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EP05292636A
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German (de)
French (fr)
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EP1674631B1 (en
Inventor
Yves Brugeaud
Renaud Montes
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Conseil Services Investissements
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Conseil Services Investissements
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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
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • 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
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement

Definitions

  • the present invention relates to a support assembly of a slab and a method of producing such a slab.
  • the columns and slabs are made of reinforced concrete either from prefabricated elements or pouring concrete into formwork directly on the site.
  • Reinforced concrete beams are generally arranged between the posts to support lost formwork plates on which concrete is poured to form the slab.
  • a floor can have a thickness of 1.10 m with a beam thickness of 0.90 m and a slab thickness of 0.20 m.
  • the minimum free height of a level being 2.20 m, it is found that the cumulative thickness of two floors corresponds to the height of a level.
  • An object of the invention is to provide a means for limiting the thickness of the floors, which can be implemented on most construction sites.
  • the individual beams can be lifted by conventional handling equipment such as tower cranes whose use is common on building construction sites. After filling the lateral reserves with concrete, the two beams form a single beam whose mechanical characteristics combine to support a slab.
  • At least one of the vertical supports is a post comprising two opposite crows arranged to support an indented end of each beam in such a way that the beams are contiguous by their protruding longitudinal portion.
  • the transverse hitches and the concrete placed in the reserves allow the recovery by the two beams of the forces exerted by the slab or the elements that it supports.
  • beams are abutted on the crows and the method comprises, prior to the filling of the reserves, the step of arranging the longitudinal coupling bars between the abutment beams.
  • the longitudinal hitch bars ensure the continuity of the reinforcement between the abutment beams.
  • the method comprises the step of arranging between the beams of the plates, and when filling the reserves, spreading concrete on the plates to form the slab.
  • the process is then particularly simple and economical.
  • the support assembly of a slab according to the invention comprises pairs of beams generally designated 1.
  • Each beam 1 is made of concrete and has a main section 2 and a sole 3 extending under the main section 2.
  • the sole 3 has a longitudinal portion 4 projecting laterally from one side of the main section 2.
  • the longitudinal portion 4 has a substantially planar and vertical lateral approach surface 5 and defines with the main section 2 a lateral reserve 6.
  • the longitudinal portion 4 stops at the ends of the main section 2 and the sole 3 to define a notch 10.
  • the main section 2 has an upper surface 15 along which a rabbet 16 extends opposite the protruding longitudinal portion 4.
  • Each beam 1 comprises prestressing elements 7 (visible only on one of the beams of FIG. 3) extending longitudinally in the portion of the beam 1 extending under the neutral fiber thereof (the position of the neutral fiber is determined in a way known in itself) for compressively compressing this portion of the beam 2.
  • the prestressing elements 7 are for example cables, bars or son adherent steel which are tensioned before being embedded in the concrete constituting the beam 1.
  • the prestressing part here comprises the sole 3 and the portion of the main section 2 adjacent to the sole 3. The distribution of the prestressing elements is determined so that the prestressing increases in a direction away from the neutral fiber.
  • the value of the preload to be exerted is calculated according to the bending forces that the beam 1 is intended to support.
  • Each beam 1 comprises a reinforcing reinforcement 8 (visible only on one of the beams of FIG. 3) embedded in the concrete constituting the beam 1.
  • the reinforcing reinforcement 8 is here designed to reinforce the main section 2, the sole 3 and the connection of these.
  • the reinforcing armature 8 is arranged and sized in a manner known per se according to the stresses that the beam 1 is intended to undergo.
  • the reinforcing reinforcement 8, made by assembling steel rods, comprises transverse hitching bars 9 which protrude into the lateral reserves 6 from the corresponding side of the main section 2.
  • the hitching irons transversely 9 extend projecting from the lateral side of docking 5.
  • the concrete constituting the beam 1 may incorporate, in substitution or in addition to the frame 8, fibers or particles of metal or other forming a structure of reinforcement of the beam in the same way as the reinforcing reinforcement 8.
  • the transverse hitch bars then have a part anchored in the concrete of the beam and preferably in the main section thereof and an opposite portion protruding from the lateral docking face 5.
  • the support assembly according to the invention also comprises posts 11 made of reinforced concrete having a rectangular cross section and having two opposite faces 12 provided with crows 13. Substantially at the crows 13, the posts 11 comprise ducts 14 which are extend parallel to the faces 12 and crows 13 to open into the side reserves 6 of the beams when they will be supported by crows as will be explained below.
  • the posts 11 are made conventionally of precast reinforced concrete or not.
  • the process begins with the step of erecting the posts 11 and arranging on the crows 13 thereof the ends of the beams 1 so that two beams 1 are contiguous by their longitudinal portion 6 projecting.
  • the beams 1 rest on the crows 13 by the soles 3.
  • each post 11 is then received in the notches 10 of the pair of beams 1.
  • the cross section of the posts 11 is received in the housing delimited by the notches 10 of the four beams 1 .
  • Plates 18 are arranged between the pairs of adjacent beams 1 such that the edges of the plates 18 are received in the rabbets 17 which thus ensure the lateral positioning of said plates 18.
  • the plates 18 may be lost formwork plates.
  • the plates 18 may also be made of reinforced concrete possibly prestressed or cellular concrete and arranged to contribute to the strength of the slab. In this case, the plates 18 (called predalles in the technical language) have a rough surface to present a relative cohesion with the slab and are said to be collaborating. The plates 18 are then an integral part of the slab 19.
  • a floor having a thickness of about 0.60 m can be obtained, with a thickness of 0.20 m for the slab.
  • the beam 1 has a thickness (or height) of the order of 0.40 m, a width of the order of 0.60 m and a range of about 16 m.
  • the reinforcing armature can be arranged differently and comprise, for example, transverse drawbars forming a complete loop instead of an open loop.
  • the reinforcing reinforcement preferably has irons projecting from the upper surface of the main section 2 to provide a connection with the concrete and the reinforcement of the slab and the longitudinal hitch irons. Longitudinal hitches can be arranged differently from those described: it is thus possible to use only irons 17 or irons 17 '.
  • Crows may also extend from the faces of posts perpendicular to the beams. It is possible to provide a threaded rod protruding from the crows to be received in an oblong slot formed longitudinally in the projecting portions to allow attachment of the beams to the crows by bolting. This is useful for maintaining the beams on the crows before pouring concrete which will ensure their final fixation.
  • the vertical supports of the beams may have a structure different from that of the poles described and include for example a wall.

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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)
  • Forging (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Body Structure For Vehicles (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The assembly has two longitudinal prestressed beams (1) between which floors are laid, and two columns (11) made of reinforced concrete. Each beam has a reinforcement armature with transversal coupling bars (9) extending in a reserve from a corresponding side of a main section. Each columns has a corbel (13) supporting an end of each beam so that the beams are placed side by side by their longitudinal projecting portion. An independent claim is also included for a method for manufacturing a slab using a slab support assembly.

Description

La présente invention concerne un ensemble de soutien d'une dalle et un procédé de réalisation d'une telle dalle.The present invention relates to a support assembly of a slab and a method of producing such a slab.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Les immeubles construits en béton, et notamment les immeubles résidentiels ou les immeubles de bureaux, ont généralement une structure comportant des planchers formés par des dalles et supportés par des poteaux. Les poteaux et les dalles sont réalisés en béton armé soit à partir d'éléments préfabriqués soit par coulage de béton en coffrage directement sur le site. Des poutres de béton armé sont généralement disposées entre les poteaux pour supporter des plaques de coffrage perdu sur lesquelles est coulé du béton pour former la dalle.Buildings constructed of concrete, including residential buildings or office buildings, typically have a structure with slab-supported floors supported by poles. The columns and slabs are made of reinforced concrete either from prefabricated elements or pouring concrete into formwork directly on the site. Reinforced concrete beams are generally arranged between the posts to support lost formwork plates on which concrete is poured to form the slab.

Il est désormais courant d'espacer au maximum les poteaux afin de limiter les contraintes liées à leur présence. Il en résulte une augmentation de la portée des poutres dont l'épaisseur augmente également afin d'avoir une inertie suffisante pour une telle portée. A titre d'exemple, compte tenu des charges prévues dans ces immeubles, un plancher peut avoir une épaisseur de 1,10 m avec une épaisseur de poutre de 0,90 m et une épaisseur de dalle de 0,20 m. La hauteur libre minimale d'un niveau étant de 2,20 m, on constate que l'épaisseur cumulée de deux planchers correspond à la hauteur d'un niveau.It is now common to space poles as much as possible in order to limit the constraints related to their presence. This results in an increase in the range of the beams whose thickness also increases in order to have sufficient inertia for such a range. For example, considering the expected loads in these buildings, a floor can have a thickness of 1.10 m with a beam thickness of 0.90 m and a slab thickness of 0.20 m. The minimum free height of a level being 2.20 m, it is found that the cumulative thickness of two floors corresponds to the height of a level.

Il serait donc intéressant de disposer d'un moyen permettant de limiter l'épaisseur des planchers de manière à pouvoir réaliser des niveaux de hauteur supérieure ou un plus grand nombre de niveaux pour une même hauteur d'immeuble.It would therefore be advantageous to have a means of limiting the thickness of the floors so as to achieve higher levels of height or a greater number of levels for the same building height.

On a pensé à utiliser des poutres ayant une structure identique à celle des longerons de ponts préfabriqués dont les portées sont généralement très importantes. Toutefois, de telles poutres auraient un poids relativement élevé, au point que cette solution se heurterait, notamment sur les chantiers de construction urbains, à l'absence d'engins de manutention ayant une capacité de levage suffisante pour déplacer ces poutres.It was thought to use beams having a structure identical to that of prefabricated bridge spars whose spans are generally very important. However, such beams would have a relatively high weight, to the point that this solution would collide, especially on urban construction sites, the absence of handling equipment having sufficient lifting capacity to move these beams.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Un but de l'invention est de proposer un moyen pour limiter l'épaisseur des planchers, qui puisse être mis en oeuvre sur la plupart des chantiers de construction.An object of the invention is to provide a means for limiting the thickness of the floors, which can be implemented on most construction sites.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

A cet effet, on prévoit, selon l'invention, un ensemble de soutien d'une dalle, comprenant au moins deux poutres précontraintes et deux supports verticaux en béton armé :

  • chaque poutre comportant une section principale et une semelle ayant une portion longitudinale en saillie d'un côté de la section principale pour définir une réserve avec la section principale, une structure de renfort noyée dans la poutre et des fers d'attelage ayant une partie noyée dans la poutre et une partie en saillie dans la réserve,
  • chaque support vertical comportant au moins un corbeau agencé pour soutenir une extrémité de chaque poutre de telle manière que les poutres soient accolées par leur portion longitudinale en saillie.
For this purpose, according to the invention, there is provided a support assembly for a slab, comprising at least two prestressed beams and two vertical supports made of reinforced concrete:
  • each beam having a main section and a flange having a longitudinal portion projecting from one side of the main section to define a reserve with the main section, a reinforcement structure embedded in the beam, and hitching irons having an embedded portion in the beam and a projecting part in the reserve,
  • each vertical support having at least one raven arranged to support one end of each beam so that the beams are contiguous by their longitudinal portion protruding.

Ainsi, les poutres prises individuellement peuvent être levées par des engins de manutention classiques comme les grues à tours dont l'usage est courant sur les chantiers de construction d'immeubles. Après remplissage des réserves latérales par du béton, les deux poutres forment une unique poutre dont les caractéristiques mécaniques se combinent pour supporter une dalle.Thus, the individual beams can be lifted by conventional handling equipment such as tower cranes whose use is common on building construction sites. After filling the lateral reserves with concrete, the two beams form a single beam whose mechanical characteristics combine to support a slab.

Selon un mode de réalisation particulier, au moins un des supports verticaux est un poteau comportant deux corbeaux opposés agencés pour soutenir une extrémité échancrée de chaque poutre de telle manière que les poutres soient accolées par leur portion longitudinale en saillie.According to a particular embodiment, at least one of the vertical supports is a post comprising two opposite crows arranged to support an indented end of each beam in such a way that the beams are contiguous by their protruding longitudinal portion.

Il est ainsi possible d'avoir une bonne liaison des poutres au poteau.It is thus possible to have a good connection of the beams to the post.

L'invention a également pour objet un procédé de réalisation d'une dalle au moyen d'ensembles de soutien du type précédent comprenant les étapes de :

  • ériger les supports verticaux,
  • disposer les paires de poutres entre les supports verticaux,
  • répandre du béton dans les réserves,
  • monter la dalle sur les poutres.
The subject of the invention is also a method for producing a slab by means of support assemblies of the preceding type, comprising the steps of:
  • erect the vertical supports,
  • arrange the pairs of beams between the vertical supports,
  • spread concrete on the reserves,
  • mount the slab on the beams.

Les fers d'attelage transversaux et le béton disposé dans les réserves permettent la reprise par les deux poutres des efforts exercés par la dalle ou les éléments que cette dernière supporte.The transverse hitches and the concrete placed in the reserves allow the recovery by the two beams of the forces exerted by the slab or the elements that it supports.

De préférence, des poutres sont aboutées sur les corbeaux et le procédé comprend, préalablement au remplissage des réserves, l'étape de disposer des fers d'attelage longitudinaux entre les poutres aboutées.Preferably, beams are abutted on the crows and the method comprises, prior to the filling of the reserves, the step of arranging the longitudinal coupling bars between the abutment beams.

Ainsi, lorsque des poutres sont aboutées, les fers d'attelage longitudinaux assurent la continuité du ferraillage entre les poutres aboutées.Thus, when beams are abutted, the longitudinal hitch bars ensure the continuity of the reinforcement between the abutment beams.

Avantageusement, préalablement au remplissage des réserves le procédé comprend l'étape de disposer entre les poutres des plaques, et lors du remplissage des réserves, répandre du béton sur les plaques pour former la dalle.Advantageously, prior to the filling of the reserves the method comprises the step of arranging between the beams of the plates, and when filling the reserves, spreading concrete on the plates to form the slab.

Le procédé est alors particulièrement simple et économique.The process is then particularly simple and economical.

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit d'un mode de mise en oeuvre particulier non limitatif de l'invention.Other characteristics and advantages of the invention will become apparent on reading the following description of a particular non-limiting embodiment of the invention.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Il sera fait référence aux dessins annexés, parmi lesquels :

  • la figure 1 est une représentation schématique partielle d'un plancher conforme à l'invention, vu de dessus avec écorché,
  • la figure 2 est une vue schématique partielle de ce plancher, en coupe selon la ligne II-II de la figure 1,
  • la figue 3 est une vue schématique partielle de ce plancher, en coupe selon la ligne III-III de la figure 1.
Reference will be made to the appended drawings, among which:
  • FIG. 1 is a partial schematic representation of a floor according to the invention, seen from above with skin,
  • FIG. 2 is a partial schematic view of this floor, in section along the line II - II of FIG. 1,
  • Fig 3 is a partial schematic view of this floor, in section along the line III-III of Figure 1.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence aux figures, l'ensemble de soutien d'une dalle conforme à l'invention comprend des paires de poutres généralement désignées en 1.With reference to the figures, the support assembly of a slab according to the invention comprises pairs of beams generally designated 1.

Chaque poutre 1 est réalisée en béton et comporte une section principale 2 et une semelle 3 s'étendant sous la section principale 2.Each beam 1 is made of concrete and has a main section 2 and a sole 3 extending under the main section 2.

La semelle 3 possède une portion longitudinale 4 en saillie latérale d'un côté de la section principale 2. La portion longitudinale 4 a une face latérale d'accostage 5 sensiblement plane et verticale et définit avec la section principale 2 une réserve latérale 6.The sole 3 has a longitudinal portion 4 projecting laterally from one side of the main section 2. The longitudinal portion 4 has a substantially planar and vertical lateral approach surface 5 and defines with the main section 2 a lateral reserve 6.

La portion longitudinale 4 s'interrompt en retrait des extrémités de la section principale 2 et de la semelle 3 pour définir une échancrure 10.The longitudinal portion 4 stops at the ends of the main section 2 and the sole 3 to define a notch 10.

La section principale 2 a une surface supérieure 15 le long de laquelle s'étend une feuillure 16 à l'opposé de la portion longitudinale 4 en saillie.The main section 2 has an upper surface 15 along which a rabbet 16 extends opposite the protruding longitudinal portion 4.

Chaque poutre 1 comprend des éléments de précontrainte 7 (visible seulement sur une des poutres de la figure 3) s'étendant longitudinalement dans la partie de la poutre 1 s'étendant sous la fibre neutre de celle-ci (la position de la fibre neutre est déterminée de manière connue en elle-même) pour contraindre en compression cette partie de la poutre 2. Les éléments de précontrainte 7 sont par exemple des câbles, des barres ou des fils adhérents en acier qui sont mis en tension avant d'être noyés dans le béton constituant la poutre 1. La partie précontrainte comprend ici la semelle 3 et la portion de la section principale 2 adjacente à la semelle 3. La répartition des éléments de précontrainte est déterminée de manière que la précontrainte croisse dans un sens d'éloignement par rapport à la fibre neutre. La valeur de la précontrainte à exercer est calculée en fonction des efforts de flexion que la poutre 1 est destinée à supporter.Each beam 1 comprises prestressing elements 7 (visible only on one of the beams of FIG. 3) extending longitudinally in the portion of the beam 1 extending under the neutral fiber thereof (the position of the neutral fiber is determined in a way known in itself) for compressively compressing this portion of the beam 2. The prestressing elements 7 are for example cables, bars or son adherent steel which are tensioned before being embedded in the concrete constituting the beam 1. The prestressing part here comprises the sole 3 and the portion of the main section 2 adjacent to the sole 3. The distribution of the prestressing elements is determined so that the prestressing increases in a direction away from the neutral fiber. The value of the preload to be exerted is calculated according to the bending forces that the beam 1 is intended to support.

Chaque poutre 1 comprend une armature de renfort 8 (visible seulement sur une des poutres de la figure 3) noyée dans le béton constituant la poutre 1. L'armature de renfort 8 est ici conçue pour renforcer la section principale 2, la semelle 3 et la liaison de celles-ci. L'armature de renfort 8 est agencée et dimensionnée de façon connue en elle-même en fonction des sollicitations que la poutre 1 est destinée à subir. L'armature de renfort 8, réalisée par assemblage de tiges d'acier, comporte des fers d'attelage transversaux 9 qui s'étendent en saillie dans les réserves latérales 6 depuis le côté correspondant de la section principale 2. Les fers d'attelage transversaux 9 se prolongent en saillie de la face latérale d'accostage 5. En variante, le béton constituant la poutre 1 peut incorporer, en substitution ou en supplément de l'armature 8, des fibres ou particules en métal ou autre formant une structure de renfort de la poutre au même titre que l'armature de renfort 8. Les fers d'attelage transversaux ont alors une partie ancrée dans le béton de la poutre et de préférence dans la section principale de celle-ci et une partie opposée en saillie de la face latérale d'accostage 5.Each beam 1 comprises a reinforcing reinforcement 8 (visible only on one of the beams of FIG. 3) embedded in the concrete constituting the beam 1. The reinforcing reinforcement 8 is here designed to reinforce the main section 2, the sole 3 and the connection of these. The reinforcing armature 8 is arranged and sized in a manner known per se according to the stresses that the beam 1 is intended to undergo. The reinforcing reinforcement 8, made by assembling steel rods, comprises transverse hitching bars 9 which protrude into the lateral reserves 6 from the corresponding side of the main section 2. The hitching irons transversely 9 extend projecting from the lateral side of docking 5. Alternatively, the concrete constituting the beam 1 may incorporate, in substitution or in addition to the frame 8, fibers or particles of metal or other forming a structure of reinforcement of the beam in the same way as the reinforcing reinforcement 8. The transverse hitch bars then have a part anchored in the concrete of the beam and preferably in the main section thereof and an opposite portion protruding from the lateral docking face 5.

L'ensemble de soutien conforme à l'invention comprend également des poteaux 11 en béton armé ayant une section transversale rectangulaire et ayant deux faces 12 opposées pourvues de corbeaux 13. Sensiblement au niveau des corbeaux 13, les poteaux 11 comprennent des conduits 14 qui s'étendent parallèlement aux faces 12 et aux corbeaux 13 pour déboucher dans les réserves latérales 6 des poutres lorsque celles-ci seront supportées par les corbeaux ainsi que cela sera expliqué ci-après. Les poteaux 11 sont réalisés de façon classique en béton armé préfabriqué ou non.The support assembly according to the invention also comprises posts 11 made of reinforced concrete having a rectangular cross section and having two opposite faces 12 provided with crows 13. Substantially at the crows 13, the posts 11 comprise ducts 14 which are extend parallel to the faces 12 and crows 13 to open into the side reserves 6 of the beams when they will be supported by crows as will be explained below. The posts 11 are made conventionally of precast reinforced concrete or not.

Le procédé de réalisation d'une dalle 19 au moyen d'ensembles de soutien conformes à l'invention va maintenant être décrit.The method of producing a slab 19 by means of support assemblies according to the invention will now be described.

Le procédé débute par l'étape d'ériger les poteaux 11 et de disposer sur les corbeaux 13 de ceux-ci les extrémités des poutres 1 de telle manière que deux poutres 1 soient accolées par leur portion longitudinale 6 en saillie. Les poutres 1 reposent sur les corbeaux 13 par les semelles 3.The process begins with the step of erecting the posts 11 and arranging on the crows 13 thereof the ends of the beams 1 so that two beams 1 are contiguous by their longitudinal portion 6 projecting. The beams 1 rest on the crows 13 by the soles 3.

La section transversale de chaque poteau 11 est alors reçue dans les échancrures 10 de la paire de poutres 1. Lorsque des paires de poutres 1 sont aboutées, la section transversale des poteaux 11 est reçue dans le logement que délimitent les échancrures 10 des quatre poutre 1.The cross section of each post 11 is then received in the notches 10 of the pair of beams 1. When pairs of beams 1 are abutted, the cross section of the posts 11 is received in the housing delimited by the notches 10 of the four beams 1 .

Des fers d'attelage longitudinaux 17, 17' sont ensuite disposés respectivement dans les réserves latérales 6 en passant par les conduits 14 et sur les faces supérieures 15 des sections principales 2 des poutres 1 aboutées afin d'assurer la continuité du ferraillage longitudinal entre les poutres 1 aboutées. La présence des fers d'attelage longitudinaux et en particulier des fers 17 renforce la liaison des poutres 1 aux poteaux 11.Longitudinal hitching bars 17, 17 'are then respectively placed in the lateral reserves 6 via the ducts 14 and on the upper faces 15 of the main sections 2 of the abutting beams 1 in order to ensure the continuity of the longitudinal reinforcement between the 1 butted beams. The presence of longitudinal hitching irons and in particular irons 17 strengthens the connection of the beams 1 to the posts 11.

Des plaques 18 sont disposées entre les paires de poutres 1 adjacentes de telle manière que les bords des plaques 18 soient reçus dans les feuillures 17 qui assurent de la sorte le positionnement latéral desdites plaques 18.Plates 18 are arranged between the pairs of adjacent beams 1 such that the edges of the plates 18 are received in the rabbets 17 which thus ensure the lateral positioning of said plates 18.

Après la mise en place d'armatures sur les plaques 18, le procédé se poursuit en répandant du béton dans les réserves latérales 6 et sur les plaques 18 pour former la dalle 19.After the setting of reinforcements on the plates 18, the process continues by spreading concrete in the lateral reserves 6 and on the plates 18 to form the slab 19.

Les plaques 18 peuvent être des plaques de coffrage perdu. Les plaques 18 peuvent également être réalisées en béton armé éventuellement précontraint ou en béton alvéolaire et agencées pour contribuer à la résistance mécanique de la dalle. Dans ce cas, les plaques 18 (appelées prédalles dans le langage technique) ont une surface rugueuse pour présenter une relative cohésion avec la dalle et sont dites collaborantes. Les plaques 18 font alors partie intégrante de la dalle 19.The plates 18 may be lost formwork plates. The plates 18 may also be made of reinforced concrete possibly prestressed or cellular concrete and arranged to contribute to the strength of the slab. In this case, the plates 18 (called predalles in the technical language) have a rough surface to present a relative cohesion with the slab and are said to be collaborating. The plates 18 are then an integral part of the slab 19.

A titre indicatif, avec une telle construction, un plancher ayant une épaisseur de l'ordre de 0,60 m peut être obtenue, avec une épaisseur de 0,20 m pour la dalle. La poutre 1 a une épaisseur (ou hauteur) de l'ordre de 0,40 m, une largeur de l'ordre de 0,60 m et une portée d'environ 16 m.As an indication, with such a construction, a floor having a thickness of about 0.60 m can be obtained, with a thickness of 0.20 m for the slab. The beam 1 has a thickness (or height) of the order of 0.40 m, a width of the order of 0.60 m and a range of about 16 m.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the embodiment described and variants may be provided without departing from the scope of the invention as defined by the claims.

En particulier, l'armature de renfort peut être agencée différemment et comprendre par exemple des fers d'attelage transversaux formant une boucle complète au lieu d'une boucle ouverte. L'armature de renfort a de préférence des fers en saillie de la surface supérieure de la section principale 2 pour assurer une liaison avec le béton et l'armature de la dalle et les fers d'attelage longitudinaux. Les fers d'attelage longitudinaux peuvent être agencés différemment de ceux décrits : il est ainsi possible de n'utiliser que les fers 17 ou les fers 17'.In particular, the reinforcing armature can be arranged differently and comprise, for example, transverse drawbars forming a complete loop instead of an open loop. The reinforcing reinforcement preferably has irons projecting from the upper surface of the main section 2 to provide a connection with the concrete and the reinforcement of the slab and the longitudinal hitch irons. Longitudinal hitches can be arranged differently from those described: it is thus possible to use only irons 17 or irons 17 '.

Les corbeaux peuvent également s'étendre depuis les faces des poteaux perpendiculaires aux poutres. Il est possible de prévoir qu'une tige filetée dépasse des corbeaux pour être reçue dans une lumière oblongue ménagée longitudinalement dans les portions en saillie afin de permettre la fixation des poutres sur les corbeaux par boulonnage. Ceci est utile pour maintenir les poutres sur les corbeaux avant la coulée du béton qui assurera leur fixation définitive.Crows may also extend from the faces of posts perpendicular to the beams. It is possible to provide a threaded rod protruding from the crows to be received in an oblong slot formed longitudinally in the projecting portions to allow attachment of the beams to the crows by bolting. This is useful for maintaining the beams on the crows before pouring concrete which will ensure their final fixation.

Les supports verticaux des poutres peuvent avoir une structure différente de celle des poteaux décrits et comprendre par exemple un mur.The vertical supports of the beams may have a structure different from that of the poles described and include for example a wall.

Claims (10)

Ensemble de soutien d'une dalle, comprenant au moins deux poutres (1) précontraintes longitudinalement et deux supports verticaux (11) en béton armé, caractérisé en ce que: - chaque poutre comporte une section principale (2) et une semelle (3) ayant une portion longitudinale (4) en saillie d'un côté de la section principale pour définir une réserve (6) avec la section principale, une structure de renfort (8) noyée dans la poutre et des fers d'attelage (9) ayant une partie noyée dans la poutre et une partie en saillie dans la réserve, - chaque support vertical comporte au moins un corbeau (13) agencé pour soutenir une extrémité de chaque poutre de telle manière que les poutres soient accolées par leur portion longitudinale en saillie. Slab supporting assembly, comprising at least two longitudinally prestressed beams (1) and two reinforced concrete vertical supports (11), characterized in that : - each beam has a main section (2) and a sole (3) having a longitudinal portion (4) projecting from one side of the main section to define a reserve (6) with the main section, a reinforcing structure ( 8) embedded in the beam and coupling irons (9) having a portion embedded in the beam and a projecting portion in the reserve, - Each vertical support comprises at least one raven (13) arranged to support one end of each beam so that the beams are contiguous by their longitudinal portion projecting. Ensemble de soutien selon la revendication 1, caractérisé en ce qu'au moins un des supports verticaux est un poteau (11) comportant deux corbeaux (19) opposés agencés pour soutenir une extrémité échancrée de chaque poutre de telle manière que les poutres soient accolées par leur portion longitudinale (4) en saillie.Support assembly according to Claim 1, characterized in that at least one of the vertical supports is a post (11) comprising two opposite crunches (19) arranged to support a notched end of each beam in such a way that the beams are contiguous with each other. their longitudinal portion (4) projecting. Ensemble de soutien selon la revendication 2, caractérisé en ce que le poteau (11) comporte au moins un conduit (14) transversal et parallèle aux corbeaux pour déboucher dans les réserves (6) et permettre le passage d'au moins un fer d'attelage longitudinal (17).Support assembly according to claim 2, characterized in that the post (11) comprises at least one duct (14) transverse and parallel to the crows to open into the reserves (6) and allow the passage of at least one iron of longitudinal coupling (17). Ensemble de soutien selon la revendication 1, caractérisé en ce que, le poteau (11) ayant une section rectangulaire, les corbeaux (13) s'étendent sur deux faces (12) opposées l'une à l'autre et parallèles à la direction longitudinale des poutres (1).Support assembly according to claim 1, characterized in that , the post (11) having a rectangular section, the crows (13) extend on two faces (12) opposite to each other and parallel to the direction longitudinal beams (1). Ensemble de soutien selon la revendication 1, caractérisé en ce que la section principale (2) a une surface supérieure (15) possédant une feuillure (16) à l'opposé de la portion longitudinale (4) en saillie.Support assembly according to claim 1, characterized in that the main section (2) has a upper surface (15) having a rebate (16) opposite the protruding longitudinal portion (4). Procédé de réalisation d'une dalle (19) au moyen d'ensembles de soutien conforme à la revendication 1, comprenant les étapes de : - ériger les supports verticaux (11), - disposer les paires de poutres (1) entre les supports verticaux, - répandre du béton dans les réserves (6), - monter la dalle sur les poutres (1). A method of making a slab (19) by means of support assemblies according to claim 1, comprising the steps of: - erect the vertical supports (11), - arrange the pairs of beams (1) between the vertical supports, - spreading concrete in the reserves (6), - mount the slab on the beams (1). Procédé selon la revendication 6, caractérisé en ce que des poutres (1) sont aboutées sur les corbeaux 13 et en ce que le procédé comprend, préalablement au remplissage des réserves (6), l'étape de disposer des fers d'attelage longitudinaux (17, 17') entre les poutres aboutées.Process according to Claim 6, characterized in that beams (1) abut on the crows 13 and in that the process comprises, prior to the filling of the reserves (6), the step of arranging the longitudinal hitching bars ( 17, 17 ') between the butted beams. Procédé selon la revendication 6, caractérisé en ce que, préalablement au remplissage des réserves, le procédé comprend l'étape de disposer entre les poutres des plaques (18), et lors du remplissage des réserves (6), répandre du béton sur les plaques pour former la dalle.Process according to Claim 6, characterized in that , prior to the filling of the reserves, the method comprises the step of arranging between the plates (18) and the filling of the reserves (6), spreading concrete on the plates to form the slab. Procédé selon la revendication 8, caractérisé en ce que les plaques (18) sont des plaques de coffrage perdu.Method according to claim 8, characterized in that the plates (18) are lost formwork plates. Procédé selon la revendication 8, caractérisé en ce que les plaques (18) sont agencées pour contribuer à la résistance mécanique de la dalle (19).Method according to claim 8, characterized in that the plates (18) are arranged to contribute to the mechanical strength of the slab (19).
EP05292636A 2004-12-21 2005-12-12 Floor support assembly and production process for such a floor Not-in-force EP1674631B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0413653A FR2879636B1 (en) 2004-12-21 2004-12-21 SUPPORT ASSEMBLY OF A SLAB AND METHOD OF MAKING SUCH SLAB

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EP1674631A1 true EP1674631A1 (en) 2006-06-28
EP1674631B1 EP1674631B1 (en) 2008-12-03

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AT (1) ATE416282T1 (en)
DE (1) DE602005011392D1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ306859B6 (en) * 2008-03-25 2017-08-16 Sicon S.R.O. A construction element for joining of load-bearing and carried structures
CN110499171A (en) * 2019-09-02 2019-11-26 河南好运祥耐材有限公司 A kind of dry quenched coke oven chute area liner quickly repairs structure

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE2324224A1 (en) * 1973-05-14 1974-12-05 Wilhelm Johannes Di Silberkuhl SKYSCRAPER
US3918222A (en) * 1974-06-03 1975-11-11 Bahram Bahramian Prefabricated modular flooring and roofing system
FR2359941A1 (en) * 1976-07-28 1978-02-24 Camazet Ag Tension joint between precast reinforced concrete units - has lateral U-bars projecting from each unit to encircle common transverse bar
US4282692A (en) * 1978-11-22 1981-08-11 Potthast Richard H Precast concrete building construction
WO2004057125A1 (en) * 2002-12-19 2004-07-08 D.L.C. S.R.L. A prefabricated multi-floor frame structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2324224A1 (en) * 1973-05-14 1974-12-05 Wilhelm Johannes Di Silberkuhl SKYSCRAPER
US3918222A (en) * 1974-06-03 1975-11-11 Bahram Bahramian Prefabricated modular flooring and roofing system
FR2359941A1 (en) * 1976-07-28 1978-02-24 Camazet Ag Tension joint between precast reinforced concrete units - has lateral U-bars projecting from each unit to encircle common transverse bar
US4282692A (en) * 1978-11-22 1981-08-11 Potthast Richard H Precast concrete building construction
WO2004057125A1 (en) * 2002-12-19 2004-07-08 D.L.C. S.R.L. A prefabricated multi-floor frame structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ306859B6 (en) * 2008-03-25 2017-08-16 Sicon S.R.O. A construction element for joining of load-bearing and carried structures
CN110499171A (en) * 2019-09-02 2019-11-26 河南好运祥耐材有限公司 A kind of dry quenched coke oven chute area liner quickly repairs structure

Also Published As

Publication number Publication date
FR2879636B1 (en) 2007-02-23
DE602005011392D1 (en) 2009-01-15
ATE416282T1 (en) 2008-12-15
FR2879636A1 (en) 2006-06-23
EP1674631B1 (en) 2008-12-03

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