EP1310595A1 - Procédé pour renforcer la tenue d'un élément d'ancrage dans une dalle de béton - Google Patents

Procédé pour renforcer la tenue d'un élément d'ancrage dans une dalle de béton Download PDF

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Publication number
EP1310595A1
EP1310595A1 EP02292778A EP02292778A EP1310595A1 EP 1310595 A1 EP1310595 A1 EP 1310595A1 EP 02292778 A EP02292778 A EP 02292778A EP 02292778 A EP02292778 A EP 02292778A EP 1310595 A1 EP1310595 A1 EP 1310595A1
Authority
EP
European Patent Office
Prior art keywords
concrete slab
anchoring element
anchoring
concrete
mortar
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
EP02292778A
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German (de)
English (en)
Other versions
EP1310595B1 (fr
Inventor
Nicolas Rada
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP1310595A1 publication Critical patent/EP1310595A1/fr
Application granted granted Critical
Publication of EP1310595B1 publication Critical patent/EP1310595B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
    • E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
    • E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry

Definitions

  • the invention relates to a method for strengthening the holding of an anchoring element. drowned in a concrete slab.
  • the method according to the invention is used in particular for improve the strength of the anchoring elements for fixing the saddles supporting the rails of a railway track resting on a concrete slab.
  • Document FR 2 425 014 discloses anchoring elements which are directly embedded in a concrete slab which allows the fixing of a railroad track, these anchoring elements consisting of an anchoring sheath having an envelope external metal provided with multiple beads coming into contact with concrete and a a lag screw screwing into the anchor sheath.
  • Such anchors are usually embedded in the slab while sinking simply, by gravity, concrete around the anchor.
  • it is often difficult to obtain good contact between the concrete and the anchor element because for example the formation of air bubbles at the interface between the anchoring element and the concrete, or when the surface condition of the anchor element does not allow a good natural bonding of concrete, or even when a phenomenon of repulsion due to the texture and nature of the materials in contact like this this is particularly the case when the anchoring element is galvanized and passivated, which limits the holding of the anchoring element in the concrete slab.
  • an object of the present invention is to provide a method for strengthening the holding an anchor in a concrete slab that is simple and economical to achieve.
  • the invention relates to a method for reinforcing the holding of an element anchor embedded in a concrete slab, characterized in that, prior to the pouring the concrete slab around the anchor element, coating the element for anchoring a mortar made of a resin mixed with sand and cement.
  • the resin is an ethylene polymer acetate vinyl.
  • the anchoring element is consisting of an anchoring sheath receiving a lag screw and comprising an envelope galvanized metal exterior.
  • the anchoring element is used for fixing a railway track.
  • FIG. 1 represents an anchoring element embedded in a concrete slab 2 according to a particular embodiment of the method according to the invention.
  • the anchoring element 1 comprises an anchoring sheath 11, known per se, into which a lag screw 12 is screwed, this lag screw 12 serving to immobilize the base 5 of a saddle intended to support a non-railway track shown in the figure.
  • the anchoring sheath 11 has an outer casing galvanized and passivated metal.
  • the envelope of the anchoring sheath 11 is covered, prior to pouring the concrete slab 2, a mortar 3 made of a resin mixed with sand and cement.
  • the resin used is preferably a ethylene vinyl acetate polymer.
  • This mortar 3 is advantageously applied to the anchoring sheaths 11 in a independent operation carried out well before pouring the concrete slab 2 so that mortar 3 is perfectly dry when handling the anchor sheaths 11 and when pouring the concrete slab 2.
  • the concrete slab 2 is for example obtained by simple gravity casting in a formwork, the concrete flowing around the mortar 3 covering the anchoring sheath 11, the latter being maintained in a fixed position during this operation.
  • Such a method makes it possible to significantly improve the behavior of the anchoring sheath in the concrete slab thanks to the very good cohesion between the metal casing galvanized anchor sheath and mortar as well as between mortar and concrete.
  • the invention also applies to other types of anchoring elements and may in particular be used to strengthen the holding of an anchor rod substantially smooth intended to be embedded directly in a concrete slab and having a threaded upper part, projecting from the concrete slab, intended for receive fasteners from the railway and allow their immobilization at by means of a nut.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Piles And Underground Anchors (AREA)
  • Bridges Or Land Bridges (AREA)
  • Soil Working Implements (AREA)
  • Dowels (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Finger-Pressure Massage (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Foundations (AREA)

Abstract

Procédé pour renforcer la tenue d'un élément d'ancrage (1) noyé dans une dalle de béton (2), caractérisé en ce que, préalablement à la coulée de la dalle de béton (2) autour de l'élément d'ancrage (1), on enduit l'élément d'ancrage (1) d'un mortier (3) constitué d'une résine mélangée avec du sable et du ciment. <IMAGE>

Description

L'invention se rapporte à un procédé pour renforcer la tenue d'un élément d'ancrage noyé dans une dalle de béton. Le procédé selon l'invention sert notamment à améliorer la tenue des éléments d'ancrage pour la fixation des selles supportant les rails d'une voie ferrée reposant sur une dalle de béton.
Il est connu du document FR 2 425 014, des éléments d'ancrage noyés directement dans une dalle de béton qui permettent la fixation d'un rail de voie ferrée, ces éléments d'ancrage étant constitués d'une gaine d'ancrage présentant une enveloppe externe métallique munie de multiples bourrelets venant au contact du béton et d'un un tire-fond se vissant dans la gaine d'ancrage.
De tels éléments d'ancrage sont habituellement noyés dans la dalle en coulant simplement, par gravité, du béton autour de l'élément d'ancrage. Toutefois, il est souvent difficile d'obtenir un bon contact entre le béton et l'élément d'ancrage du fait par exemple de la formation de bulles d'air à l'interface entre l'élément d'ancrage et le béton, ou lorsque l'état de surface de l'élément d'ancrage ne permet pas un bon accrochage naturel du béton, ou bien encore lorsqu'il se produit un phénomène de répulsion en raison de la texture et de la nature des matériaux en contact comme cela est notamment le cas quand l'élément d'ancrage est galvanisé et passivé, ce qui limite la tenue de l'élément d'ancrage dans la dalle de béton. Or, il est important pour une voie ferrée que les éléments d'ancrage soient fermement tenus dans la dalle de béton afin d'assurer un excellent maintien des rails de la voie ferrée.
Aussi, un but de la présente invention est de proposer un procédé pour renforcer la tenue d'un élément d'ancrage dans une dalle de béton qui soit simple et économique à réaliser.
A cet effet, l'invention a pour objet un procédé pour renforcer la tenue d'un élément d'ancrage noyé dans une dalle de béton, caractérisé en ce que, préalablement à la coulée de la dalle de béton autour de l'élément d'ancrage, on enduit l'élément d'ancrage d'un mortier constitué d'une résine mélangée avec du sable et du ciment.
Selon une autre caractéristique de l'invention, la résine est un polymère éthylène vinyle acétate.
Selon encore une autre caractéristique de l'invention, l'élément d'ancrage est constitué d'une gaine d'ancrage recevant un tire-fond et comprenant une enveloppe extérieure métallique galvanisée.
Selon encore une autre caractéristique de l'invention, l'élément d'ancrage est utilisé pour la fixation d'une voie ferrée.
On comprendra mieux les buts, aspects et avantages de la présente invention, d'après la description donnée ci-après d'un mode particulier de réalisation de l'invention, présenté à titre d'exemple non limitatif, en se référant à la figure 1 annexée représentant une vue en coupe d'un élément d'ancrage noyé dans une dalle de béton suivant le procédé selon l'invention.
Pour faciliter la lecture de cette figure, seuls les éléments nécessaires à la compréhension de l'invention ont été représentés.
La figure 1 représente un élément d'ancrage noyé dans une dalle de béton 2 selon un mode de réalisation particulier du procédé selon l'invention.
Conformément à cette figure, l'élément d'ancrage 1 comporte une gaine d'ancrage 11, connue en soi, dans laquelle est vissé un tire-fond 12, ce tire-fond 12 servant à immobiliser l'embase 5 d'une selle destinée à supporter un rail de voie ferrée non représenté sur la figure. La gaine d'ancrage 11 possède une enveloppe extérieure métallique galvanisée et passivée.
Conformément à l'invention, l'enveloppe de la gaine d'ancrage 11 est recouverte, préalablement à la coulée de la dalle de béton 2, d'un mortier 3 constitué d'une résine mélangée avec du sable et du ciment. La résine utilisée est préférentiellement un polymère éthylène vinyle acétate.
Ce mortier 3 est avantageusement appliqué sur les gaines d'ancrage 11 dans une opération indépendante réalisée bien avant la coulée de 1a dalle de béton 2 afin que mortier 3 soit parfaitement sec lors de la manipulation des gaines d'ancrage 11 et lors de la coulée de la dalle de béton 2.
La dalle de béton 2 est par exemple obtenue par simple coulée par gravité dans un coffrage, le béton s'écoulant autour du mortier 3 recouvrant la gaine d'ancrage 11, cette dernière étant maintenue dans une position fixe lors de cette opération.
Un tel procédé permet d'améliorer notablement la tenue de la gaine d'ancrage dans la dalle de béton grâce à la très bonne cohésion qu'il y a entre l'enveloppe métallique galvanisée de la gaine d'ancrage et le mortier ainsi qu'entre le mortier et le béton.
Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.
Ainsi, l'invention s'applique également à d'autres types d'éléments d'ancrage et pourra notamment être utilisée pour renforcer la tenue d'une tige d'ancrage sensiblement lisse destinée à être noyée directement dans une dalle de béton et disposant d'une partie supérieure filetée, débordant de la dalle de béton, destinée à recevoir des pièces de fixation de la voie ferrée et à permettre leur immobilisation au moyen d'un écrou.

Claims (4)

  1. Procédé pour renforcer la tenue d'un élément d'ancrage (1) noyé dans une dalle de béton (2), caractérisé en ce que, préalablement à la coulée de la dalle de béton (2) autour de l'élément d'ancrage (1), on enduit l'élément d'ancrage (1) d'un mortier (3) constitué d'une résine mélangée avec du sable et du ciment.
  2. Procédé selon la revendication 1, caractérisé en ce que la résine est un polymère éthylène vinyle acétate.
  3. Procédé selon l'une quelconque des revendications 1 à 2, caractérisé en ledit élément d'ancrage (1) est constitué d'une gaine d'ancrage (11) recevant un tire-fond (12) et comprenant une enveloppe extérieure métallique galvanisée.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit élément d'ancrage (1) est utilisé pour la fixation d'une voie ferrée.
EP02292778A 2001-11-13 2002-11-07 Dispositif d'ancrage Expired - Lifetime EP1310595B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0114652A FR2832194B1 (fr) 2001-11-13 2001-11-13 Procede pour renforcer la tenue d'un element d'ancrage dans une dalle de beton
FR0114652 2001-11-13

Publications (2)

Publication Number Publication Date
EP1310595A1 true EP1310595A1 (fr) 2003-05-14
EP1310595B1 EP1310595B1 (fr) 2006-05-03

Family

ID=8869331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02292778A Expired - Lifetime EP1310595B1 (fr) 2001-11-13 2002-11-07 Dispositif d'ancrage

Country Status (15)

Country Link
US (1) US6804928B2 (fr)
EP (1) EP1310595B1 (fr)
JP (1) JP4102164B2 (fr)
KR (1) KR100916859B1 (fr)
AT (1) ATE325237T1 (fr)
AU (1) AU2002301953B2 (fr)
BR (1) BR0204640A (fr)
CA (1) CA2411686A1 (fr)
DE (1) DE60211099T2 (fr)
DK (1) DK1310595T3 (fr)
ES (1) ES2263752T3 (fr)
FR (1) FR2832194B1 (fr)
MX (1) MXPA02011141A (fr)
PT (1) PT1310595E (fr)
TW (1) TWI257444B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112049323A (zh) * 2019-06-05 2020-12-08 李志强 一种模块化蒸压加气混凝土板
CN113775078A (zh) * 2021-09-06 2021-12-10 中国建筑第四工程局有限公司 装配式剪力墙连接机构、剪力墙及剪力墙施工方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641451A (en) * 1947-09-16 1950-08-09 Christian Marie Gaston Nerincx Thread linings for railway sleeper screws
GB943090A (en) * 1960-03-31 1963-11-27 Formica Int Compositions for use as an adhesive cement
US4614781A (en) * 1983-11-07 1986-09-30 Takeda Chemical Industries, Ltd. Resin from saponified ethylene-vinyl acetate copolymers, production and use thereof
FR2687706A1 (fr) * 1992-02-24 1993-08-27 Vangensten Oue Pietro Procede de scellement par du mortier de tirants dans les plafonds ou les parois verticales des structures en pierre, beton, rochers.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB609485A (en) * 1943-01-27 1948-10-01 Maurice Vaes Improvements in locking devices to immobilise coach-screws, sleeper-screws and the like
FR2425014A2 (fr) 1975-06-25 1979-11-30 Vape Sa Ets Dispositif de fixation a vis dans un element de construction en matiere agglomeree
FR2315568A1 (fr) * 1975-06-25 1977-01-21 Vape Sa Ets Dispositif de fixation a vis dans un element de construction en matiere agglomeree
US4564315A (en) * 1983-07-05 1986-01-14 Rozanc Richard C Method for anchoring a bolt in a rock-like structure
AU555809B2 (en) * 1983-12-09 1986-10-09 Onoda Corp. Method for repairing and restoring deteriorated cement- containing inorganic material
US6200678B1 (en) * 1986-02-19 2001-03-13 Florida Wire & Cable, Inc. Corrosion resistant coated metal strand
JPS63223216A (ja) * 1987-03-12 1988-09-16 Kensetsu Kiso Eng Kk アンカ−体定着部
JPH07106955B2 (ja) * 1990-04-03 1995-11-15 明星工業株式会社 コンクリート構造物の劣化防止方法
US5965635A (en) * 1995-06-07 1999-10-12 Illinois Tool Works Inc. Alkylacrylate ester composition for anchoring materials in or to concrete or masonry
US5944823A (en) 1996-10-21 1999-08-31 International Business Machines Corporations Outside access to computer resources through a firewall
JP3525020B2 (ja) * 1996-11-26 2004-05-10 財団法人鉄道総合技術研究所 鉄道レール用磁性複合型制振材、鉄道レール制振装置、及び鉄道レールの制振工法
KR200245224Y1 (ko) * 2001-04-12 2001-10-11 최봉림 부식방지 처리된 볼트
KR200244893Y1 (ko) * 2001-06-12 2001-10-17 현기종 전주용 스텝볼트
KR200252800Y1 (ko) * 2001-07-09 2001-11-17 박양원 도로의 중앙분리구

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641451A (en) * 1947-09-16 1950-08-09 Christian Marie Gaston Nerincx Thread linings for railway sleeper screws
GB943090A (en) * 1960-03-31 1963-11-27 Formica Int Compositions for use as an adhesive cement
US4614781A (en) * 1983-11-07 1986-09-30 Takeda Chemical Industries, Ltd. Resin from saponified ethylene-vinyl acetate copolymers, production and use thereof
FR2687706A1 (fr) * 1992-02-24 1993-08-27 Vangensten Oue Pietro Procede de scellement par du mortier de tirants dans les plafonds ou les parois verticales des structures en pierre, beton, rochers.

Also Published As

Publication number Publication date
ES2263752T3 (es) 2006-12-16
BR0204640A (pt) 2003-09-16
EP1310595B1 (fr) 2006-05-03
CA2411686A1 (fr) 2003-05-13
DE60211099T2 (de) 2007-05-03
DK1310595T3 (da) 2006-08-21
US6804928B2 (en) 2004-10-19
MXPA02011141A (es) 2004-10-15
FR2832194B1 (fr) 2004-10-01
KR20030040092A (ko) 2003-05-22
JP2003160901A (ja) 2003-06-06
JP4102164B2 (ja) 2008-06-18
KR100916859B1 (ko) 2009-09-09
AU2002301953B2 (en) 2008-08-21
HK1057770A1 (en) 2004-04-16
US20030089048A1 (en) 2003-05-15
FR2832194A1 (fr) 2003-05-16
TW200300195A (en) 2003-05-16
TWI257444B (en) 2006-07-01
ATE325237T1 (de) 2006-06-15
PT1310595E (pt) 2006-06-30
DE60211099D1 (de) 2006-06-08

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