EP0624697B1 - Armature tendue en acier pour traverses en béton précontraint avec ancrage injecté - Google Patents

Armature tendue en acier pour traverses en béton précontraint avec ancrage injecté Download PDF

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Publication number
EP0624697B1
EP0624697B1 EP94103556A EP94103556A EP0624697B1 EP 0624697 B1 EP0624697 B1 EP 0624697B1 EP 94103556 A EP94103556 A EP 94103556A EP 94103556 A EP94103556 A EP 94103556A EP 0624697 B1 EP0624697 B1 EP 0624697B1
Authority
EP
European Patent Office
Prior art keywords
steel reinforcement
prestressed concrete
anchoring
concrete sleepers
grouted
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.)
Expired - Lifetime
Application number
EP94103556A
Other languages
German (de)
English (en)
Other versions
EP0624697A1 (fr
Inventor
Frithjof Dipl.-Ing. Schimpff
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.)
Pfleiderer Infrastrukturtechnick GmbH and Co KG
Original Assignee
Pfleiderer Infrastrukturtechnick GmbH and Co KG
Pfleiderer Verkehrstechnik GmbH and Co KG
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 Pfleiderer Infrastrukturtechnick GmbH and Co KG, Pfleiderer Verkehrstechnik GmbH and Co KG filed Critical Pfleiderer Infrastrukturtechnick GmbH and Co KG
Publication of EP0624697A1 publication Critical patent/EP0624697A1/fr
Application granted granted Critical
Publication of EP0624697B1 publication Critical patent/EP0624697B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/046—Post treatment to obtain pre-stressed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/06—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed for the production of elongated articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • B28B7/303—Cores; Mandrels adjustable, collapsible, or expanding specially for making undercut recesses or continuous cavities the inner section of which is superior to the section of either of the mouths
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
    • E01B3/34—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement with pre-tensioned armouring or reinforcement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • E04C3/26—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members prestressed
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance, i.e. of essentially one-dimensional [1D] or two-dimensional [2D] extent
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance, i.e. of essentially one-dimensional [1D] or two-dimensional [2D] extent with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/10—Ducts

Definitions

  • the invention relates to a prestressed concrete threshold, as in The preamble of claim 1 is described.
  • the thresholds from economic and manufacturing reasons with two crosswise installed hairpin-shaped curved rods. This means that complex anchoring constructions fall on one End of the finished part gone. You will be there by the Rod arch replaced.
  • One with a hairpin bent Tension bars reinforced threshold is for example from DE A 10 58 909 known
  • the prestressing rods - because of the small cross-section of the sleepers - with one very small bending radius.
  • the small Bending radius limits the number of prestressing steels that can be used on.
  • the object of the invention is suitable hairpin-shaped to find bendable reinforcing bars with which one sufficient liability is achievable.
  • the object is achieved by the characterizing part of the claim, especially through targeted initiation of a Manufacture of profiled tension bars with cross sections with diameters> 8 mm, with which a production of Prestressed concrete sleepers with subsequent composite under The use of profiled tie rods is only possible.
  • FIGS. 1 and 2 show a threshold in longitudinal section (Fig.1) and cross section (Fig.2) with cross-shaped hairpin-shaped reinforcing bars.
  • a prestressed concrete sleeper 1 is in the formwork with the help inserted suitable shaped bars with the concrete 2 penetrating tension channels 3 provided in the Hairpin-shaped tie rods 4 made of profiled prestressing steel pulled in after the concrete has hardened and then be excited. Then the tensioning channels with suitable grout.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (1)

  1. Poutre en béton précontraint post-tendu dans laquelle est introduite et tendue, dans des gorges préfabriquées et après durcissement du béton, une armature de précontrainte en acier constituée de deux tiges en forme d'épingles à cheveux posées selon un schéma en croix,
    caractérisée en ce que des barres de précontrainte en acier profilé étiré à froid servent à former l'armature acier, une séquence de laminage ultérieure ayant conféré à la surface du corps desdites barres des creux en forme d'auges.
EP94103556A 1993-05-08 1994-03-09 Armature tendue en acier pour traverses en béton précontraint avec ancrage injecté Expired - Lifetime EP0624697B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4315402 1993-05-08
DE4315402 1993-05-08

Publications (2)

Publication Number Publication Date
EP0624697A1 EP0624697A1 (fr) 1994-11-17
EP0624697B1 true EP0624697B1 (fr) 2000-07-19

Family

ID=6487606

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93113953A Withdrawn EP0625414A1 (fr) 1993-05-08 1993-09-01 Procédé pour diminuer le manque d'adhésion dans des traverses ou dans des éléments similaires à haute résistance à la fatigue en béton précontraint avec ancrage injecté et dispositif de fabrication pour la mise en oevre du procédé
EP94103556A Expired - Lifetime EP0624697B1 (fr) 1993-05-08 1994-03-09 Armature tendue en acier pour traverses en béton précontraint avec ancrage injecté

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP93113953A Withdrawn EP0625414A1 (fr) 1993-05-08 1993-09-01 Procédé pour diminuer le manque d'adhésion dans des traverses ou dans des éléments similaires à haute résistance à la fatigue en béton précontraint avec ancrage injecté et dispositif de fabrication pour la mise en oevre du procédé

Country Status (5)

Country Link
EP (2) EP0625414A1 (fr)
AT (1) ATE194862T1 (fr)
DE (1) DE59409453D1 (fr)
ES (2) ES1026242Y (fr)
PT (1) PT624697E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018106169U1 (de) 2018-09-20 2018-11-08 Leonhard Moll Betonwerke Gmbh & Co Kg Einrichtung zur Stabilisierung der Stirnseiten von Betonfertigteilen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009006555U1 (de) * 2009-05-07 2009-07-16 Rail.One Gmbh Spannbetonschwelle
MX2014008112A (es) 2014-07-01 2016-01-01 Bienracon S De Rl De Cv Durmiente monolítico ultrarresistente de concreto presforzado de forma integral con geometría óptima para vías férreas balastradas.
CN107858873A (zh) * 2017-10-31 2018-03-30 天津银龙预应力材料股份有限公司 一种耐用型铁路轨枕

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE479679A (fr) *
BE445943A (fr) *
US2535100A (en) * 1949-01-17 1950-12-26 James A Sourwine Process for prestressing cement products
GB682320A (en) * 1949-02-07 1952-11-05 Armand Blaton Method of forming passages in concrete beams or the like
DE880645C (de) * 1951-07-12 1953-06-22 Wayss & Freytag A G Verfahren zum Herstellen von Kanaelen in Beton, insbesondere von Kanaelen fuer Vorspannglieder
DE1084464B (de) * 1953-09-03 1960-06-30 Moossche Eisenwerke Ag Bewehrungsdraht oder -stab, insbesondere fuer Spannbeton, sowie Verfahren und Vorrichtung zu seiner Herstellung
FR1194229A (fr) * 1957-04-20 1959-11-06
DE1058909B (de) * 1957-11-19 1959-06-04 Werner Karig Dr Ing Vorrichtung zum Herstellen von Eisenbahnschwellen aus Spannbeton
CA725390A (en) * 1960-06-21 1966-01-11 Gillberg Johannes Method and apparatus for the manufacture of reinforcing bars
NL135455C (fr) * 1967-01-03
AT279124B (de) * 1968-05-07 1970-02-25 Holzmann Philipp Ag Verfahren und Hüllrohr zur Herstellung von Spannbetonbauteilen
DE2717869B2 (de) * 1977-04-22 1979-05-31 Dyckerhoff & Widmann Ag, 8000 Muenchen Verfahren zum Aussteifen eines dünnwandigen Hüllrohrs und zum Einfädeln eines Spannglieds in das Hüllrohr
JPS6076216A (ja) * 1983-10-04 1985-04-30 Naniwa Seitei Kk 外周に塑性加工されたスパイラル溝を有する金属棒材の製造方法
AU587442B2 (en) * 1985-04-08 1989-08-17 Sumitomo Electric Industries, Ltd. Prestressing steel material
US4726163A (en) * 1985-06-10 1988-02-23 Jacobs William A Prestressed plastic bodies and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018106169U1 (de) 2018-09-20 2018-11-08 Leonhard Moll Betonwerke Gmbh & Co Kg Einrichtung zur Stabilisierung der Stirnseiten von Betonfertigteilen

Also Published As

Publication number Publication date
PT624697E (pt) 2000-12-29
ES2112216T1 (es) 1998-04-01
ATE194862T1 (de) 2000-08-15
ES2112216T3 (es) 2000-11-01
ES1026242U (es) 1994-04-01
EP0625414A1 (fr) 1994-11-23
EP0624697A1 (fr) 1994-11-17
DE59409453D1 (de) 2000-08-24
ES1026242Y (es) 1994-09-01

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