EP2094913B1 - Palier lisse pour plaques en béton, procédé de fabrication d'une plaque en béton et construction présentant un palier lisse - Google Patents

Palier lisse pour plaques en béton, procédé de fabrication d'une plaque en béton et construction présentant un palier lisse Download PDF

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Publication number
EP2094913B1
EP2094913B1 EP07855363A EP07855363A EP2094913B1 EP 2094913 B1 EP2094913 B1 EP 2094913B1 EP 07855363 A EP07855363 A EP 07855363A EP 07855363 A EP07855363 A EP 07855363A EP 2094913 B1 EP2094913 B1 EP 2094913B1
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EP
European Patent Office
Prior art keywords
concrete
film
slab
concrete slab
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP07855363A
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German (de)
English (en)
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EP2094913A1 (fr
Inventor
Johann Kollegger
Anton Schweighofer
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Technische Universitaet Wien
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Technische Universitaet Wien
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Publication of EP2094913A1 publication Critical patent/EP2094913A1/fr
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
    • E01C7/14—Concrete paving
    • E01C7/145—Sliding coverings, underlayers or intermediate layers ; Isolating or separating intermediate layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions, by inlays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24025—Superposed movable attached layers or components

Definitions

  • the invention relates to a slide bearing for concrete slabs and a method for producing a concrete slab, wherein the sliding bearing comprises a first foil and a second foil, the first foil can be brought into contact with a substructure of the concrete slab and the second foil by pouring concrete onto the second Foil can be brought into contact with an underside of the concrete slab and which foils are tightly connected at edges.
  • joints In the manufacture of concrete slabs, especially concrete or fiber concrete floor slabs, joints shall be provided at a distance of 5m to 8m in order to accommodate shortening due to heat of hydration flow, shrinkage and temperature drop in the joints, and cracking of the slab fields avoid.
  • the joints have the disadvantage of being maintenance-intensive and prone to damage.
  • This slipperiness counteracts frictional forces which depend on the weight of the concrete slab, the coefficient of friction between the concrete slab and the substructure, and the distance between the slack and a movement rest of the concrete slab.
  • the biasing force acting on the concrete slab decreases with increasing distance from the clamping point and is zero at a certain distance and thus ineffective.
  • a disadvantage of the latter arrangement is only insufficient improvement of the sliding friction caused by the escape of air from the air cushions, after which the concrete slab rests with high surface pressure forces on small contact surfaces, and the great effort in the preparation of such an arrangement.
  • a storage of the type mentioned is for example from the DE 1 153 788 A which discloses a slide bearing film in the form of a thin-walled tube, which is arranged between two concrete slabs or between a concrete slab and the substrate.
  • the disadvantage here is in particular that the films by interleaves of sand or similar. can be damaged that the sliding friction properties are insufficient, as well as that between the films or between film and concrete penetrating water, the sliding properties are influenced uncontrollably.
  • the object is achieved by a sliding bearing of the type described above in that at least one gas and liquid permeable layer formed by a nonwoven and / or a fabric, woven, knitted or knitted fabric is provided between the films.
  • the at least one gas and / or liquid-permeable layer ensures a low-friction storage of the concrete slab, which allows a uniform, tension-free curing of the concrete slab after the casting process. As a result, even large areas without compensating joints can be concreted out in such a way that there are no permanent stress cracks.
  • a method for producing a concrete slab, preferably a concrete floor slab, using a plain bearing comprises the following steps: laying a first foil preferably on the substructure of a concrete floor slab, laying at least one gas and liquid permeable layer formed of a nonwoven and / or a textile fabric , Woven, knitted or knitted fabric, onto the first film, covering the at least one layer with the second film, hermetically bonding the films together at their edges, concreting the concrete slab on the slide bearing, introducing a liquid or gaseous medium having a predetermined minimum pressure into the Slide bearing, and maintaining the minimum pressure in the plain bearing until the concrete slab hardens.
  • the process is characterized by a simple and highly efficient way to produce even large concrete slabs without stress cracks.
  • a building comprising a substructure, a slide bearing and a concrete floor slab is characterized in that the slide bearing comprises a first film and a second film, which films are tightly interconnected at edges and between which films at least one gas- and liquid-permeable layer formed by a Nonwoven and / or a textile fabric, woven, knitted or knitted fabric is formed, wherein the first film is applied to the base of the concrete floor slab and the second foil is applied by pouring concrete onto the second foil on a lower side of the concrete slab, advantageously a hardened medium being present between the foils.
  • Fig. 1 is a highly schematic slide bearing 1 between a concrete floor slab 2 and a substructure 3 shown.
  • the substructure 3 may for example consist of concrete or other suitable material, as shown in the figures, or even only of consolidated soil.
  • the sliding bearing 1 which comprises a first film 4, a second film 5 and at least one arranged between the films 4, 5 layer 6, which is permeable to gases and / or liquids.
  • the permeable layer 6 may be formed in the form of a fabric, in particular a nonwoven, or another suitable textile fabric of individual fibers. Also, woven, knitted and knitted fabrics of yarns with corresponding gas and / or liquid-permeable properties can be used for the at least one permeable layer 6.
  • the first and the second film 4, 5 are connected at their edges 7 all around, for example, plastic-welded, so that an airtight space between the two sheets 4, 5 is formed.
  • a weld 8 is exemplified in FIG Fig. 2 shown.
  • the slide bearing 1 can also, as from Fig. 2 can be seen bent up in their edge regions and by a Randum charged 9, which, for example, in Form of an L-shaped angle profile can be supported, be supported, wherein the Randum charged 9 may be connected to the base 3. This further ensures that the concrete floor slab 2 is reliably supported during the curing process.
  • the formation of cracks in the concrete floor slab 2 by a divergence of the concrete can be avoided by the Randum charged 9.
  • the production of the sliding bearing 1 can also be simplified by folding back the first film 4 onto itself or onto the at least one permeable layer 6, so that the first film 4 and the second film 5 two at an edge 10 represent interconnected layers of the same plastic sheet.
  • the weld 8 can be omitted at one of the edges 7, whereby manufacturing costs and costs can be reduced.
  • the plain bearing 1 is produced in the manner described below:
  • the first film 4 is placed on the substructure 3 or on the substrate, then covered with the at least one permeable layer 6 and covered with the second film 5. It is also possible for a plurality of layers 6 or foil layers 4, 5 to be provided. Also, a sandwich construction is conceivable, wherein the air spaces formed between the sheets 4, 5 are in communication with each other or may be completed against each other.
  • the films 4, 5 are connected at their edges 7 airtight with each other, as described above. Thereafter, the concrete floor slab 2 can be concreted on the plain bearing 1.
  • a liquid or gaseous medium 14 a gas or a fluid is introduced into the at least one permeable layer 6 between the two foils 4, 5 and in this way generates a minimum pressure which supports the concrete floor slab 2 and thereby assisting during deformation processes during solidification of the concrete floor slab 2.
  • the minimum pressure is maintained at least until a part of the shrinkage reduction of the concrete floor slab 2 has occurred until the heat of hydration has flowed off or until the concrete slab plate 2 has again reached ambient temperature.
  • the plain bearing 1 can also be designed as a prefabricated product on the substructure 3, so that the films 4, 5 are supplied with the at least one intermediate layer 6, for example as endless and then cut and welded in situ only.
  • the pressure in the sliding bearing 1 can also be combined with a bias of the concrete floor slab 2, in which case the plain bearing 1 is subjected to a pressure before the concrete bottom slab 2 is subjected to a bias.
  • a centric bias can additionally take place, so that the distortion caused by the shrinkage and the temperature reduction is less than the compression of the concrete floor slab 2 by the bias.
  • the average pressure in the layer 6 should correspond to 0.3 to 1.1 times, preferably 0.8 to 1.0 times the weight of the concrete floor slab 2.
  • suitable materials such as cement mortar or tixotropic liquids or also a suction system for the extraction of the medium 14 present in the layer 6 can be used.
  • the remaining of the medium 14 in the sliding bearing 1 with curing to an elastic damping layer is possible.
  • one or more filling points 11 may be provided, which may be formed for example in the form of a filling valve 12 in the film 4.
  • the at least one filling valve 12 extends at least partially into at least one recess 13 passing through the concrete base plate 2 in the concrete base plate 2, through which connection to a filling device on the filling valve 12 can be made.
  • the concrete floor plate 2 thus has only one or more small recesses 13, which can also be made closable in a simple manner, so that a very homogeneous formation of the surface of the concrete floor slab 2 is possible.
  • the foils 4, 5 are preferably made of polyethylene, polypropylene or polyvinyl chloride and have a tear strength of at least 5 N / cm in the longitudinal and transverse direction per foil layer.
  • the tear strength per film layer should be at least 2000 N / cm 2 in the longitudinal and transverse directions.
  • the elongation at break can be set up to 400% in the longitudinal and transverse direction per film layer.
  • the layer 6 is preferably made of polypropylene or polyester at a weight of 100 to 500 g / m 2 per layer 6.
  • the thickness of each individual layer 6 is preferably between 1 mm and 4 mm.
  • the maximum tensile forces per layer 6 are preferably between 9.5 to 30 kN / m.
  • the water permeability of the layer 6 is to be set at a value of about 3 ⁇ 10 -3 .
  • the gas and / or liquid-permeable layer 6 has a modulus of elasticity normal to the median plane of the layer 6. If the weight of the concrete slab 2 compensated by an air or water pressure in the layer 6, the layer 6, which was compressed by the weight of the concrete slab 2, reach their original thickness extent again, if linear elastic material behavior in the layer 6 normal to the median plane the layer 6 is assumed. This effect may be beneficial if, due to a sufficient thickness of the layer 6, e.g. by the use of several layers of non-woven fabric, to compensate for unevenness of the substrate during the deformations of the concrete slab 2 (for example during tempering, as a result of the heat of hydration flowing away, cutting or temperature).
  • the at least one layer 6 prevents any adhesion of the two foils 4, 5, e.g. by moisture; in the at least one layer 6, the air can spread slowly and evenly.
  • the invention is not limited to the illustrated embodiments, but also includes the production of a concrete slab, which is lifted after curing on the sliding bearing of this and is used for structures of any kind.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Bridges Or Land Bridges (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Claims (26)

  1. Palier lisse (1) pour une plaque en béton, de préférence une plaque de sol en béton (2), le palier lisse (1) comportant une première feuille (4) et une seconde feuille (5), la première feuille (4) pouvant être mise en appui sur une fondation (3) de la plaque de sol en béton (2) et la seconde feuille (5) pouvant être mise en appui sur la face inférieure de la plaque de sol en béton (2) en faisant couler du béton sur la seconde feuille (5), et lesquelles feuilles (4, 5) étant reliées entre elles de manière étanche par leurs bords (7), caractérisé en ce qu'entre les feuilles (4, 5) est prévue au moins une couche, perméable à des gaz ou à des liquides, formée par un textile non tissé (6) et/ou une structure plane textile, un tissu, un tricot ou un tricot tricoté double.
  2. Palier lisse selon la revendication 1 caractérisé en ce qu'au moins une couche perméable à des gaz et à des liquides (6) est formée en polypropylène ou en polyester.
  3. Palier lisse selon les revendications 1 ou 2 caractérisé en ce que la première feuille (4) et/ou la seconde feuille (5) sont formées de plusieurs couches.
  4. Palier lisse selon l'une des revendications 1 à 3 caractérisé en ce que les feuilles (4, 5) sont formées en polyéthylène, en polypropylène ou en chlorure de polyvinyle.
  5. Palier lisse selon l'une des revendications de 1 à 4 caractérisé en ce qu'après le bétonnage de la plaque en béton (2), un milieu (14), liquide ou sous forme de gaz traversant la couche (6), peut être introduit dans le palier lisse (1) par au moins un endroit de remplissage (11).
  6. Palier lisse selon la revendication 5 caractérisé en ce qu'au moins un endroit de remplissage (11) dans la feuille (4), orientée vers la plaque en béton (2), est muni d'une vanne de remplissage (12).
  7. Palier lisse selon la revendication 6 caractérisé en ce qu'au moins un évidement (13) traversant la plaque en béton (2) et correspondant au moins à une vanne de remplissage (12) est prévu dans la plaque en béton (2).
  8. Palier lisse selon les revendications 6 ou 7 caractérisé en ce qu'au moins une vanne de remplissage (12) peut être raccordée à un dispositif de remplissage.
  9. Palier lisse selon l'une des revendications de 1 à 8 caractérisée en ce que le palier lisse (1) s'aligne parfaitement avec la plaque en béton (2).
  10. Palier lisse selon l'une des revendications de 1 à 9 caractérisé en ce que de préférence une ceinture (9) présentant un profil en L est prévue sur l'ensemble du périmètre de la plaque en béton (2) à construire.
  11. Palier lisse selon la revendication 10 caractérisé en ce que le palier lisse (1) se poursuit entre la plaque en béton (2) et la ceinture (9).
  12. Procédé de fabrication d'une plaque en béton, de préférence d'une plaque de sol en béton (2) moyennant l'utilisation d'un palier lisse (1) selon l'une des revendications de 1 à 11 caractérisé en ce que le procédé comprend les étapes suivantes :
    - dépôt d'une première feuille (4) de préférence sur la fondation d'une plaque de sol en béton (2),
    - dépôt d'au moins une couche (6), perméable à des gaz et à des liquides, formée par un textile non tissé et/ou une structure plane textile, un tissu, un tricot ou un tricot tricoté double, sur la première feuille (4),
    - recouvrement d'au moins une couche (6) avec une seconde feuille (5),
    - création d'une liaison étanche à l'air pour les feuilles (4, 5), ensemble, au niveau de leurs bords (7),
    - bétonnage de la plaque en béton (2) sur le palier lisse (1),
    - introduction dans le palier lisse (1) d'un milieu (14), liquide ou sous forme de gaz, avec une pression minimale prédéterminée, et
    - maintien de la pression minimale dans le palier lisse (1) jusqu'au durcissement de la plaque en béton (2).
  13. Procédé selon la revendication 12 caractérisé en ce que le milieu (14) dans la couche (6) est laissé tel quel pendant le durcissement du milieu (14).
  14. Procédé selon la revendication 12 caractérisé en ce qu'en tant qu'une autre étape de procédé pour exprimer ou faire sortir le milieu (14) présent dans au moins une couche (6) se poursuit, de préférence après au moins un durcissement partiel du béton.
  15. Procédé selon la revendication 12 caractérisé en ce qu'une nouvelle étape de procédé s'ajoute, dans laquelle au moins un milieu (14), présent dans une couche (6), est au moins partiellement remplacé par un autre milieu (14).
  16. Procédé de fabrication d'une plaque en béton, de préférence d'une plaque de sol en béton (2) moyennant l'utilisation d'un palier lisse (1) selon l'une des revendications de 1 à 11, caractérisé en ce que le procédé comprend les étapes suivantes :
    - dépôt d'une feuille (4) sur la base,
    - dépôt d'au moins une couche (6), perméable à des gaz et à des liquides, formée par un textile non tissé et/ou une structure plane textile, un tissu ou un tricot tricoté double, sur une première feuille (4),
    - recouvrement d'au moins une couche (6) avec une seconde feuille (5),
    - établissement d'une liaison étanche à l'air entre les feuilles (4, 5) au niveau de leurs bords,
    - ensuite, dépôt d'un composite formé par les deux feuilles (4, 5) et la couche (6) comprises entre elles sur une fondation de la plaque en béton à fabriquer,
    - bétonnage de la plaque en béton (2) sur le composite,
    - introduction dans le composite d'un milieu (14), liquide ou sous forme de gaz, avec une pression minimale prédéterminée, et
    - maintien de la pression minimale dans le composite jusqu'au durcissement de la plaque en béton (2).
  17. Procédé selon l'une des revendications de 12 à 16 caractérisé en ce que le milieu (14) est introduit dans le palier lisse (1) sous une pression qui correspond à 0,3 et 1,1 fois, de préférence à 0,8 et 1,0 fois le poids net de la plaque en béton (2).
  18. Procédé selon l'une des revendications de 12 à 17 caractérisé en ce que l'établissement de la pression dans la couche (6) est effectué avant que la dissipation de la chaleur d'hydratation de la plaque en béton (2) ne se produise.
  19. Procédé selon la revendication 18 caractérisé en ce que la pression dans la couche (6) est maintenue constante jusqu'à ce que la plaque en béton (2) est à la température environnante.
  20. Procédé selon l'une des revendications de 12 à 19 caractérisé en ce que l'établissement de la pression dans la couche (6) s'effectue avant la mise en place d'une précontrainte dans la plaque de béton (2).
  21. Procédé selon l'une des revendications de 13 à 20 caractérisé en ce que le milieu (14) subit une modification de ses propriétés physiques par une réaction chimique pendant ou après la dissipation de la chaleur d'hydratation et pendant ou après le retrait dans la plaque en béton (2).
  22. Procédé selon l'une des revendications de 13 à 21 caractérisé en ce que le milieu (14) est d'abord présent à l'état liquide et forme une structure durable, de préférence une structure élastique, après le déroulement d'une réaction de polymérisation.
  23. Procédé selon l'une des revendications de 13 à 21 caractérisé en ce que la modification du milieu (14) peut être influencée par l'influence de la chaleur " en particulier par l'utilisation de la chaleur d'hydratation ou par un échauffement forcé après le durcissement de la plaque en béton (2).
  24. Procédé selon l'une des revendications de 13 à 23 caractérisé en ce que le milieu (14) est un gel thixotrope.
  25. Construction comprenant une fondation (3), un palier lisse (1) et une plaque de sol en béton (2) caractérisée en ce que le palier lisse (1) comporte une première feuille (4) et une seconde feuille (5), lesquelles feuilles (4, 5) sont reliées ensemble de manière étanche au niveau des bords (7), et entre lesquelles feuilles (4, 5) est formée une couche (6), perméable à des gaz et à des liquides, formée par un textile non tissé et/ou une structure plane textile, un tissu, un tricot ou un tricot tricoté double, la première feuille (4) prenant appui sur la fondation (3) de la plaque de sol en béton (2) et la seconde feuille (5) prenant appui sur la face inférieure de la plaque de sol en béton (2) par le coulage du béton sur la seconde feuille (5).
  26. Construction selon la revendication 25 caractérisée en ce qu'un milieu (14) durci, de préférence de nature élastique, est présent entre les feuilles (4, 5).
EP07855363A 2006-12-22 2007-12-20 Palier lisse pour plaques en béton, procédé de fabrication d'une plaque en béton et construction présentant un palier lisse Not-in-force EP2094913B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0213106A AT504483B1 (de) 2006-12-22 2006-12-22 Gleitlagerung für betonplatten, verfahren zur herstellung einer betonplatte und bauwerk mit einer gleitlagerung
PCT/AT2007/000578 WO2008077167A1 (fr) 2006-12-22 2007-12-20 Palier lisse pour plaques en béton, procédé de fabrication d'une plaque en béton et construction présentant une plaque en béton

Publications (2)

Publication Number Publication Date
EP2094913A1 EP2094913A1 (fr) 2009-09-02
EP2094913B1 true EP2094913B1 (fr) 2013-02-20

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EP07855363A Not-in-force EP2094913B1 (fr) 2006-12-22 2007-12-20 Palier lisse pour plaques en béton, procédé de fabrication d'une plaque en béton et construction présentant un palier lisse

Country Status (7)

Country Link
US (1) US8297003B2 (fr)
EP (1) EP2094913B1 (fr)
CN (1) CN101611197B (fr)
AT (1) AT504483B1 (fr)
AU (1) AU2007336687B2 (fr)
RU (1) RU2450097C2 (fr)
WO (1) WO2008077167A1 (fr)

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AT504483B1 (de) 2008-06-15
US8297003B2 (en) 2012-10-30
RU2009128210A (ru) 2011-01-27
CN101611197A (zh) 2009-12-23
AT504483A4 (de) 2008-06-15
RU2450097C2 (ru) 2012-05-10
CN101611197B (zh) 2012-05-23
US20100015388A1 (en) 2010-01-21
EP2094913A1 (fr) 2009-09-02
WO2008077167A1 (fr) 2008-07-03
AU2007336687A1 (en) 2008-07-03
AU2007336687B2 (en) 2013-08-22

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