FR2625240A1 - Prefabricated slabs particularly for producing floors - Google Patents

Prefabricated slabs particularly for producing floors Download PDF

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Publication number
FR2625240A1
FR2625240A1 FR8718067A FR8718067A FR2625240A1 FR 2625240 A1 FR2625240 A1 FR 2625240A1 FR 8718067 A FR8718067 A FR 8718067A FR 8718067 A FR8718067 A FR 8718067A FR 2625240 A1 FR2625240 A1 FR 2625240A1
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Prior art keywords
slabs
concrete
keying
prefabricated slab
slab according
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FR8718067A
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French (fr)
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FR2625240B1 (en
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Priority to FR8718067A priority Critical patent/FR2625240B1/en
Priority to IT68123/88A priority patent/IT1224005B/en
Priority to PT89292A priority patent/PT89292B/en
Priority to ES8803871A priority patent/ES2017116A6/en
Priority to GR880100855A priority patent/GR1002529B/en
Publication of FR2625240A1 publication Critical patent/FR2625240A1/en
Application granted granted Critical
Publication of FR2625240B1 publication Critical patent/FR2625240B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Floor Finish (AREA)
  • Road Paving Structures (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

Prefabricated slab, particularly in concrete, which can be used more especially for producing floors, characterised in that each of its side faces comprises: - at its low part, at least one longitudinal groove 12 into which bonding concrete 18 is poured to form a key between consecutive slabs; - at its upper part, hollows 14 which, when filled with the bonding concrete, hold in position and separate the horizontal ties across the bonding joints.

Description

La présente invention est relative à des perfectionnements apportés à des dalles préfabriquées, généralement en béton, selon des largeurs standards, et qui sont utilisées en vue de la réalisation, notamment, de planchers. The present invention relates to improvements made to prefabricated slabs, generally made of concrete, according to standard widths, and which are used for the production, in particular, of floors.

I1 est connu que dates des zones qui sont susceptibles d'être soumises à des secousses sismiques, il existe un certain nombre de contraintes concernant le b timent. La présente invention se propose de résoudre les problèmes posés par de telles contraintes en apportant une solution particulièrement simple et économique tant en ce qui concerne le prix de revient des dalles utilisées dans les bâtiments concernés que leur mode de montage plus particulièrement en vue de réaliser des planchers. C'est ainsi que, notamment, selon l'invention, il est possible de procéder au montage de dalles standards préfabriquées notamment par filage, sans utiliser de fers ou d'aciers de liaison. It is known that in the dates of the zones which are liable to be subjected to earthquakes, there are a certain number of constraints relating to the building. The present invention proposes to solve the problems posed by such constraints by providing a particularly simple and economical solution both with regard to the cost price of the slabs used in the buildings concerned and their method of mounting more particularly with a view to achieving floors. Thus, in particular, according to the invention, it is possible to mount standard prefabricated slabs in particular by spinning, without using irons or bonding steels.

En conséquence la présente invention a pour objet une dalle préfabriquée, notamment en béton, pouvant être utilisée plus particulièrement pour la réalisation de planchers, caractérisée en ce que chacune de ses rives latérales comporte
- en partie basse, au moins une rainure longitudinale qui constitue une clé après coulage d'un beton de clavetage entre deux dalles consécutives
- en partie haute, des empreintes qui, lors de leur remplissage par le béton de clavetage, mobilisent et répartissent les bielles horizontales au travers des joints de clavetage.Consequently, the present invention relates to a prefabricated slab, in particular made of concrete, which can be used more particularly for the production of floors, characterized in that each of its lateral edges comprises
- in the lower part, at least one longitudinal groove which constitutes a key after pouring a keying concrete between two consecutive slabs
- in the upper part, indentations which, when they are filled with the keying concrete, mobilize and distribute the horizontal connecting rods through the keying joints.

Ainsi qu'on le comprend, la présente invention permet de faire diffuser les contraintes, dues notamment aux efforts sismiques dans toute la masse de la dalle, par l'intermédiaire des empreintes et du béton de clavetage. As will be understood, the present invention makes it possible to diffuse the stresses, due in particular to seismic forces throughout the mass of the slab, by means of the imprints and of the keying concrete.

Selon une autre caractéristique de la présente invention, l'espacement entre deux dalles consécutives devant être assemblées par moulage du béton de clavetage, est ménagé à l'aide de talons qui font saillie sur les dalles, a leur partie inférieure, et qui délimitent la partie inferieure d'une enceinte de coffrage délimitée entre les deux dalles consécutives. According to another characteristic of the present invention, the spacing between two consecutive slabs to be assembled by molding the concrete of keying, is provided by means of heels which project on the slabs, at their lower part, and which delimit the lower part of a formwork enclosure delimited between the two consecutive slabs.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description faite ci-après en référence au dessin annexé qui en illustre un exemple de réalisation dépourvu de tout caractère limitatif. Sur le dessin
La figure 1 est une vue en perspective de l'une des rives latérales d'une dalle perfectionnée selon la présente invention
La figure 2 est une vue en coupe par un plan vertical montrant comment s'effectue l'assemblage de deux dalles consécutives selon la présente invention, par coulage d'un béton de clavetage entre les deux dalles
La figure 3 est une vue en plan à échelle agrandie illustrant la façon selon laquelle s'effectue la transmission des efforts dans un assemblage de dalles perfectionnées selon l'invention et
La figure 4 représente en coupe par un plan vertical le profil d'une rive d'un second exemple de réalisation d'une dalle selon l'invention.Other characteristics and advantages of the present invention will emerge from the description given below with reference to the appended drawing which illustrates an embodiment thereof devoid of any limiting character. On the drawing
Figure 1 is a perspective view of one of the side edges of an improved slab according to the present invention
Figure 2 is a sectional view through a vertical plane showing how the assembly of two consecutive slabs according to the present invention is carried out, by pouring a concrete of keying between the two slabs
FIG. 3 is a plan view on an enlarged scale illustrating the way in which the forces are transmitted in an assembly of improved slabs according to the invention and
Figure 4 shows in section through a vertical plane the profile of a bank of a second embodiment of a slab according to the invention.

En se référant aux figures 1 et 2, on voit qu'une dalle selon l'invention, généralement fabriquée en béton, selon un procédé connu de filage; se caractérise essentiellement par une conformation originale de ses rives latérales, cette conformation permettant de mobiliser les efforts verticaux et horizontaux sans utiliser d'acier de liaison. Referring to Figures 1 and 2, it can be seen that a slab according to the invention, generally made of concrete, according to a known spinning process; is essentially characterized by an original conformation of its lateral edges, this conformation making it possible to mobilize the vertical and horizontal forces without using connecting steel.

En consequence, chaque rive de la dalle 10 comporte au moins une rainure longitudinale 12 qui comporte un. bord oblique et qui permet d'assurer au moins une clé, après coulage d'un béton de clavetage 18 entre deux dalles consécutives, l'espacement entre ces deux dalles (figure 2) étant ménagé grace à la saillie d'un talon 16 dont la rive de la dalle est pourvue à sa partie inférieure, ce talon permettant ainsi qu'on le voit sur la figure 2, de délimiter une enceinte de coffrage dans laquelle est coulé le béton de clavetage 18 qui assure la liaison entre les deux dalles consécutives à assembler. Grace à cette disposition, la clé, ainsi réalisée après coulage du béton du clavetage 18, mobilise et répartit les bielles verticales différentielles entre les dalles et assure un comportement monolithique de l'assemblage obtenu par une pluralité de dalles juxtaposées. Consequently, each edge of the slab 10 has at least one longitudinal groove 12 which has one. oblique edge and which makes it possible to ensure at least one key, after pouring a concrete of keying 18 between two consecutive slabs, the spacing between these two slabs (FIG. 2) being made thanks to the projection of a heel 16 of which the edge of the slab is provided at its lower part, this heel thus making it possible, as can be seen in FIG. 2, to delimit a formwork enclosure in which the keying concrete 18 is poured which ensures the connection between the two consecutive slabs to assemble. Thanks to this arrangement, the key, thus produced after pouring the concrete of the keying 18, mobilizes and distributes the differential vertical connecting rods between the slabs and ensures a monolithic behavior of the assembly obtained by a plurality of juxtaposed slabs.

Dans l'exemple de réalisation représenté sur le dessin, la rainure longitudinale 12 comporte un bord oblique, permettant de diriger les efforts verticaux vers la masse de la dalle (voir la figure 2). In the embodiment shown in the drawing, the longitudinal groove 12 has an oblique edge, making it possible to direct the vertical forces towards the mass of the slab (see FIG. 2).

Le profil de chaque rive latérale de chaque dalle comporte, en outre, en partie haute, des empreintes 14 quii par l'intermédiaire du béton de clavetage 18, mobilisent et répartissent les bielles horizontales au travers des joints de clavetage lors des contraintes qui s'exercent sur l'assemblage des dalles ainsi réalisé, notamment en cas de secousse sismique. The profile of each lateral bank of each slab further comprises, in the upper part, indentations 14 which, by means of the keying concrete 18, mobilize and distribute the horizontal connecting rods through the keying joints during the stresses which occur. exert on the assembly of the slabs thus produced, in particular in the event of an earthquake.

Comme on le voit sur la figure 3, les efforts s'appuient dans les empreintes 14 qui les diffusent dans la masse de la dalle 10. Sur cette figure 3, la flèche P désigne le sens de poussée et les flèches P1 et P2 désignent la transmission des forces. De préférence, les empreintes 14 présentent une forme concave, ce qui permet d'obtenir une répartition multidirectionnelle des efforts selon un éventail couvrant un angle de 90 (figure 3). Par ailleurs, les empreintes 14 complètent les rainures longitudinales telles que 12, en reprenant une partie des bielles verticales qui viennent buter sur l'intrados et sur la base de la dalle en réalisant ainsi des clés verticales. As can be seen in FIG. 3, the forces are supported in the indentations 14 which diffuse them in the mass of the slab 10. In this FIG. 3, the arrow P designates the direction of thrust and the arrows P1 and P2 designate the transmission of forces. Preferably, the imprints 14 have a concave shape, which makes it possible to obtain a multidirectional distribution of the forces according to a fan covering an angle of 90 (FIG. 3). Furthermore, the indentations 14 complete the longitudinal grooves such as 12, by taking up part of the vertical connecting rods which abut on the lower surface and on the base of the slab, thus producing vertical keys.

Les empreintes 14, å elles seules, mobilisent ainsi qu'on l'a déjà précisé ci-dessus, à la fois les bielles horizontales et verticales d'un plancher, notamment soumis à des contraintes sismiques, sans qu'il soit nécessaire de prévoir des aciers de liaison. The footprints 14, by themselves, mobilize as has already been specified above, both the horizontal and vertical connecting rods of a floor, in particular subject to seismic stresses, without it being necessary to provide bonding steels.

Dans l'exemple de réalisation illustré par les figures, on prévoit sur la partie supérieure de chaque rive longitudinale de la dalle, une feuillure 20 qui permet d'araser parfaitement le béton de clavetage 18 et ainsi d'adoucir les éventuelles différences d'épaisseur entre dalles consécutives. In the embodiment illustrated by the figures, there is provided on the upper part of each longitudinal edge of the slab, a rebate 20 which makes it possible to level the keying concrete 18 perfectly and thus to soften any differences in thickness between consecutive slabs.

Enfin, on peut prévoir un chanfrein tel que 22 sur la rive inférieure longitudinale de chaque dalle, de manière à faciliter le traitement du joint entre dalles, particulièrement en vue de la réalisation d'un plafond platré ou directement peint, sans joint apparent. Finally, it is possible to provide a chamfer such as 22 on the longitudinal lower edge of each slab, so as to facilitate the treatment of the joint between slabs, particularly with a view to producing a flat or directly painted ceiling, with no visible joint.

Dans la variante de l'invention, illustrée par la figure 4, la rive latérale de la dalle 10 présente la même configuration que la rive latérale de la dalle représentée sur les figures 1 à 3, a l'exception toutefois de -la présence d'une seconde rainure longitudinale 12'. En effet, l'invention prévoit un nombre variable de rainures longitudinales telles que 12, 12', en fonction de l'épaisseur des dalles. On peut ainsi obtenir après coulage du béton de clavetage entre deux dalles, autant de clés de repartition des bielles verticales différentielles entre dalles qu'il existe de rainures longitudinales. In the variant of the invention, illustrated in FIG. 4, the lateral edge of the slab 10 has the same configuration as the lateral edge of the slab shown in FIGS. 1 to 3, with the exception, however, of the presence of 'a second longitudinal groove 12'. Indeed, the invention provides a variable number of longitudinal grooves such as 12, 12 ', depending on the thickness of the slabs. It is thus possible, after pouring the keying concrete between two slabs, as many keys for distributing the differential vertical connecting rods between slabs as there are longitudinal grooves.

Selon l'invention, (figure 4), on peut utiliser les rainures longitudinales 12, 12', pour la manutention des dalles 10 à l'aide de pinces auto-serrantes 24 dont les machoires 26 viennent se caler dans l'une des rainures afin d'éviter tout glissement lors du levage de la dalle. Ainsi'qu'on le voit sur la figure 4, le dégagement des machoires 26 est facilité par l'espace réservé entre deux dalles consécutives, accolées talon contre talon 16.  According to the invention (FIG. 4), the longitudinal grooves 12, 12 ′ can be used for handling the slabs 10 using self-tightening pliers 24 whose jaws 26 are wedged in one of the grooves to avoid slipping when lifting the slab. Thus as can be seen in FIG. 4, the release of the jaws 26 is facilitated by the space reserved between two consecutive slabs, joined heel against heel 16.

I1 demeure bien entendu que la présente invention n'est pas limitée aux exemples de réalisation décrits et représentés ci-dessus mais qu'elle en englobe toutes les variantes.  I1 of course remains that the present invention is not limited to the embodiments described and shown above but that it encompasses all variants.

Claims (8)

REVENDICATIONS 1- Dalle préfabriquée, notamment en béton, pouvant être utilisée plus particulièrement pour la réalisation de planchers, caractérisée en ce que chacune de ses rives latérales comporte 1- Prefabricated slab, in particular concrete, which can be used more particularly for the production of floors, characterized in that each of its lateral edges comprises - en partie basse, au moins une rainure longitudinale (12) qui constitue une clé après coulage d'un béton de clavetage (18) entre deux dalles consécutives - in the lower part, at least one longitudinal groove (12) which constitutes a key after pouring a keying concrete (18) between two consecutive slabs - en partie haute, des empreintes (14) qui, lors de leur remplissage par le béton de clavetage, mobilisent et répartissent les bielles horizontales au travers des joints de clavetage. - In the upper part, indentations (14) which, when they are filled with the keying concrete, mobilize and distribute the horizontal connecting rods through the keying joints. 2- Dalle préfabriquée selon la revendication 1, caractérisée en ce que l'espacement entre deux dalles consécutives devant être assemblées par moulage du béton de clavetage (18), est ménagé à l'aide de talons (16) qui font saillie sur les dalles, à leur partie inférieure, et qui délimitent la partie inférieure d'une enceinte de coffrage délimitée entre les deux dalles consécutives. 2- Prefabricated slab according to claim 1, characterized in that the spacing between two consecutive slabs to be assembled by molding of the concrete of keying (18), is provided by means of heels (16) which project on the slabs , at their lower part, and which delimit the lower part of a formwork enclosure delimited between the two consecutive slabs. 3- Dalle préfabriquée selon l'une quelconque des ' revendications précédentes caractérisée en ce que chaque rainure longitudinale (12) comporte au moins un bord oblique pour diriger les efforts vers la masse de la dalle (10). 3- Prefabricated slab according to any one of the preceding claims, characterized in that each longitudinal groove (12) has at least one oblique edge for directing the forces towards the mass of the slab (10). 4- Dalle préfabriquée selon l'une quelconque des revendications précédentes caractérisée en ce que les empreintes (14) ont une forme concave. 4- Prefabricated slab according to any one of the preceding claims, characterized in that the imprints (14) have a concave shape. 5- Dalle préfabriquée selon l'une quelconque des revendications précédentes caractérisée en ce que la rive supérieure longitudinale de la dalle comporte une feuillure (20) qui permet d'araser le béton de clavetage (18) et d'adoucir les éventuelles différences d'épaisseur entre les dalles. 5- Prefabricated slab according to any one of the preceding claims, characterized in that the upper longitudinal edge of the slab has a rebate (20) which makes it possible to level the concrete of keying (18) and to soften any differences in thickness between the tiles. 6- Dalle préfabriquée selon l'une quelconque des revendications précédentes caractérisée en ce que la rive inférieure longitudinale comporte un chanfrein (22) pour faciliter le traitement du joint entre ' deux dalles consécutives. 6- Prefabricated slab according to any one of the preceding claims, characterized in that the longitudinal lower edge comprises a chamfer (22) to facilitate the treatment of the joint between 'two consecutive slabs. 7- Dalle préfabriquée selon l'une quelconque des revendications précédentes caractérisée en ce que le nombre de rainures longitudinales (i2, 12') prévu en partie basse de chaque rive latérale de la daile (10) est fonction de l'épaisseur desdites dalles. 7- Prefabricated slab according to any one of the preceding claims, characterized in that the number of longitudinal grooves (i2, 12 ') provided in the lower part of each lateral bank of the wing (10) depends on the thickness of said slabs. 8- Dalle préfabriquée selon l'une quelconque des revendications precedentes caractérisée en ce que les rainures (12, 12') prévues dans les rives latérales peuvent être utilisées en outre pour la manutention des dalles a l'aide de pinces auto-serrantes (24) dont les mâchoires (26) viennent se caler dans une rainure pour éviter tout glissement au levage.  8- Prefabricated slab according to any one of the preceding claims, characterized in that the grooves (12, 12 ') provided in the lateral edges can also be used for handling the slabs using self-tightening clamps (24 ) whose jaws (26) are wedged in a groove to prevent slipping during lifting.
FR8718067A 1987-12-23 1987-12-23 PREFABRICATED TILES, PARTICULARLY FOR THE PRODUCTION OF FLOORS Expired - Lifetime FR2625240B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8718067A FR2625240B1 (en) 1987-12-23 1987-12-23 PREFABRICATED TILES, PARTICULARLY FOR THE PRODUCTION OF FLOORS
IT68123/88A IT1224005B (en) 1987-12-23 1988-12-19 PREFABRICATED SLABS IN PARTICULAR FOR THE REALIZATION OF FLOORS
PT89292A PT89292B (en) 1987-12-23 1988-12-21 LABS PRE-MANUFACTURED ESPECIALLY FOR THE REALIZATION OF FLOORS
ES8803871A ES2017116A6 (en) 1987-12-23 1988-12-21 Prefabricated slabs particularly for producing floors
GR880100855A GR1002529B (en) 1987-12-23 1988-12-22 Paving prefabricated flagstones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8718067A FR2625240B1 (en) 1987-12-23 1987-12-23 PREFABRICATED TILES, PARTICULARLY FOR THE PRODUCTION OF FLOORS

Publications (2)

Publication Number Publication Date
FR2625240A1 true FR2625240A1 (en) 1989-06-30
FR2625240B1 FR2625240B1 (en) 1991-06-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8718067A Expired - Lifetime FR2625240B1 (en) 1987-12-23 1987-12-23 PREFABRICATED TILES, PARTICULARLY FOR THE PRODUCTION OF FLOORS

Country Status (5)

Country Link
ES (1) ES2017116A6 (en)
FR (1) FR2625240B1 (en)
GR (1) GR1002529B (en)
IT (1) IT1224005B (en)
PT (1) PT89292B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007350B4 (en) * 2009-02-09 2014-08-14 Vbi Ontwikkeling B.V. Hollow plank, method for its transport and a lifting device
EP3486392A1 (en) 2018-03-12 2019-05-22 Elastic Potential S.L. Prefabricated floor element, structure comprising prefabricated floor elements and installation for obtaining the prefabricated floor element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813198C (en) * 1950-04-04 1951-09-10 Wilhelm Schaefer Slab ceiling made of large-format hollow slabs
FR1195429A (en) * 1958-04-25 1959-11-17 prefabricated element for floors and similar structures
FR1406608A (en) * 1964-06-10 1965-07-23 Standardized construction plate or slab
BE858167A (en) * 1977-08-26 1977-12-16 Cuyvers Edward G WELF ELEMENT AND DEVICE FOR MANUFACTURE OF SUCH WELF ELEMENTS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310482A1 (en) * 1983-03-23 1984-09-27 Heinrich Dr.-Ing. 7000 Stuttgart Bechert CONCRETE CARRIER, SUPPORT PLATE OD. DGL.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813198C (en) * 1950-04-04 1951-09-10 Wilhelm Schaefer Slab ceiling made of large-format hollow slabs
FR1195429A (en) * 1958-04-25 1959-11-17 prefabricated element for floors and similar structures
FR1406608A (en) * 1964-06-10 1965-07-23 Standardized construction plate or slab
BE858167A (en) * 1977-08-26 1977-12-16 Cuyvers Edward G WELF ELEMENT AND DEVICE FOR MANUFACTURE OF SUCH WELF ELEMENTS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007350B4 (en) * 2009-02-09 2014-08-14 Vbi Ontwikkeling B.V. Hollow plank, method for its transport and a lifting device
EP3486392A1 (en) 2018-03-12 2019-05-22 Elastic Potential S.L. Prefabricated floor element, structure comprising prefabricated floor elements and installation for obtaining the prefabricated floor element
WO2019175196A1 (en) 2018-03-12 2019-09-19 Elastic Potential, S.L. Prefabricated floor element, structure comprising prefabricated floor elements and installation for obtaining the prefabricated floor element

Also Published As

Publication number Publication date
PT89292A (en) 1989-09-14
GR880100855A (en) 1994-03-31
ES2017116A6 (en) 1991-01-01
IT1224005B (en) 1990-09-26
PT89292B (en) 1995-03-01
GR1002529B (en) 1997-01-27
FR2625240B1 (en) 1991-06-07
IT8868123A0 (en) 1988-12-19

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