EP2094913A1 - Palier lisse pour plaques en béton, procédé de fabrication d'une plaque en béton et construction présentant une plaque en béton - Google Patents

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

Info

Publication number
EP2094913A1
EP2094913A1 EP07855363A EP07855363A EP2094913A1 EP 2094913 A1 EP2094913 A1 EP 2094913A1 EP 07855363 A EP07855363 A EP 07855363A EP 07855363 A EP07855363 A EP 07855363A EP 2094913 A1 EP2094913 A1 EP 2094913A1
Authority
EP
European Patent Office
Prior art keywords
concrete
slab
concrete slab
film
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.)
Granted
Application number
EP07855363A
Other languages
German (de)
English (en)
Other versions
EP2094913B1 (fr
Inventor
Johann Kollegger
Anton Schweighofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technische Universitaet Wien
Original Assignee
Technische Universitaet Wien
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technische Universitaet Wien filed Critical Technische Universitaet Wien
Publication of EP2094913A1 publication Critical patent/EP2094913A1/fr
Application granted granted Critical
Publication of EP2094913B1 publication Critical patent/EP2094913B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 bearing of the type mentioned at the outset can be seen, for example, from DE 1 153 788 A, which discloses a plain bearing foil 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 o.a. 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 by a nonwoven and / or a textile fabric , Woven, knitted or knitted fabric, on the first film, covering the at least one layer with the second film, hermetically bonding the films together at their edges, concreting the concrete plate on the sliding 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 sectional view through an embodiment of an inventively designed sliding bearing for a concrete floor slab
  • Fig. 2 is a highly schematic representation of the edge design of the embodiment of a sliding bearing according to the invention shown in FIG. 1, and
  • Fig. 3 is a highly schematic representation of a filling point for the sliding bearing according to the invention.
  • a highly schematic plain bearing 1 between a concrete floor slab 2 and a substructure 3 is 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 shown by way of example in FIG.
  • the sliding bearing 1 can also, as shown in Fig. 2, bent up in their edge regions and by an edge surround 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 in that the first film 4 is folded back on itself or on the laid at least one permeable layer 6, so that the first film 4 and the second film. 5 represent two at one edge 10 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 in the film 4, for example in the form of a filling valve 12.
  • 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 films 4, 5 are preferably made of polyethylene, polypropylene or polyvinyl chloride and have per foil layer a tensile strength of at least 5N / cm in the longitudinal and transverse directions.
  • the tear strength per film layer should be at least 2000 N / cm 2 in the longitudinal and transverse directions.
  • the elongation at break per film layer can be set up to 400% in the longitudinal and transverse directions.
  • 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.
  • 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 can be favorable if, due to a sufficient thickness of the layer 6, for example by using a plurality of nonwoven layers, unevennesses in the substrate are to be compensated during the deformations of the concrete slab 2 (eg during prestressing 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.

Landscapes

  • 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)

Abstract

L'invention concerne un palier lisse (1) pour une plaque en béton (2) comprenant une première feuille (4) et une seconde feuille (5), la première feuille (4) pouvant être appliquée sur une base (3) de la plaque de plancher en béton (2) et la seconde feuille (5) pouvant être appliquée, par coulage de béton sur la seconde feuille (5), sur la face inférieure de la plaque en béton (2), ces feuilles (4, 5) étant reliées l'une à l'autre de manière étanche en leurs bords (7). L'invention vise à réduire au minimum tout frottement entre la plaque en béton (2) et la base (3). A cet effet, on prévoit au moins une couche qui est perméable aux fluides et aux gaz entre les feuilles (4, 5) et est constituée d'un non-tissé (6) et/ou d'une étoffe, d'un tissu, tricot ou maillage.
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 true EP2094913A1 (fr) 2009-09-02
EP2094913B1 EP2094913B1 (fr) 2013-02-20

Family

ID=39311004

Family Applications (1)

Application Number Title Priority Date Filing Date
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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US9234381B2 (en) 2013-01-07 2016-01-12 WexEnergy LLC Supplemental window for fenestration
US10883303B2 (en) 2013-01-07 2021-01-05 WexEnergy LLC Frameless supplemental window for fenestration
US9845636B2 (en) 2013-01-07 2017-12-19 WexEnergy LLC Frameless supplemental window for fenestration
US9691163B2 (en) 2013-01-07 2017-06-27 Wexenergy Innovations Llc System and method of measuring distances related to an object utilizing ancillary objects
US10196850B2 (en) 2013-01-07 2019-02-05 WexEnergy LLC Frameless supplemental window for fenestration
US9663983B2 (en) 2013-01-07 2017-05-30 WexEnergy LLC Frameless supplemental window for fenestration incorporating infiltration blockers
CN105862545B (zh) * 2016-05-30 2018-06-08 皇玉彬 一种混凝土地面的施工工具和施工方法
US10313756B2 (en) * 2017-03-03 2019-06-04 Rovi Guides, Inc. System and methods for recommending a media asset relating to a character unknown to a user
IL271006B2 (en) 2017-05-30 2024-09-01 WexEnergy LLC Complementary window without a frame for window design
CN113529511A (zh) * 2021-07-01 2021-10-22 南昌工程学院 一种复合式路面结构设计方法、装置、设备和制作方法

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Also Published As

Publication number Publication date
RU2009128210A (ru) 2011-01-27
US8297003B2 (en) 2012-10-30
AT504483B1 (de) 2008-06-15
CN101611197A (zh) 2009-12-23
US20100015388A1 (en) 2010-01-21
WO2008077167A1 (fr) 2008-07-03
RU2450097C2 (ru) 2012-05-10
AU2007336687A1 (en) 2008-07-03
AT504483A4 (de) 2008-06-15
CN101611197B (zh) 2012-05-23
EP2094913B1 (fr) 2013-02-20
AU2007336687B2 (en) 2013-08-22

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