EP0361227B1 - Eisenbahnschwelle aus Spannbeton - Google Patents

Eisenbahnschwelle aus Spannbeton Download PDF

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Publication number
EP0361227B1
EP0361227B1 EP89117094A EP89117094A EP0361227B1 EP 0361227 B1 EP0361227 B1 EP 0361227B1 EP 89117094 A EP89117094 A EP 89117094A EP 89117094 A EP89117094 A EP 89117094A EP 0361227 B1 EP0361227 B1 EP 0361227B1
Authority
EP
European Patent Office
Prior art keywords
sleeper
prestressed concrete
tensioning elements
centre
cross
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
EP89117094A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0361227A3 (en
EP0361227A2 (de
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.)
Walter Bau AG
Original Assignee
Dyckerhoff and Widmann AG
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 Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Priority to AT89117094T priority Critical patent/ATE81691T1/de
Publication of EP0361227A2 publication Critical patent/EP0361227A2/de
Publication of EP0361227A3 publication Critical patent/EP0361227A3/de
Application granted granted Critical
Publication of EP0361227B1 publication Critical patent/EP0361227B1/de
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
    • 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

Definitions

  • the invention relates to a railway sleeper made of prestressed concrete with a monolithic sleeper body consisting of two support bodies supporting the fastening parts for the rails and a middle part connecting them, which has a smaller cross section than the support body.
  • the position of the individual tension elements in the sleeper body is predetermined by distributing their end anchorages in the cross-sectional areas of the sleeper ends as evenly as possible and by guiding the tension elements in a straight line between the end anchorages in order to achieve a central prestress.
  • the sleeper body therefore mostly has a prismatic shape. This results in higher bending moments compared to a sleeper body with a slim middle section; however, these are accepted in favor of a simple linear guidance of the tensioning elements.
  • the end anchors of the tensioning elements can either be formed by anchor bodies or, when the sleepers are manufactured in the tensioning bed, by an adhesive bond. It is also known to form the end anchorages of two tensioning elements in each case on a sleeper end in the form of a loop.
  • the invention has for its object to allow a reduction in the cross-sectional width in the middle part of the sleeper body in favor of the support body in a prestressed concrete sleeper of the type specified while maintaining the uniform distribution of the end anchorages of the tensioning elements on the cross-sectional areas of the sleeper ends, even in the case of a prestressed concrete sleeper more favorable distribution of the bending moments and, if possible, a saving of prestressing steel.
  • the threshold end including the deflection points of the wire loops, is no longer pre-tensioned after the anchor bolts have been pulled, since the tension wires curved in the region of the bolts are no longer held, but stretch and lose their tension.
  • the crossed guidance of the tensioning elements in the middle of the sleeper enables the use of a sleeper body with a high, narrow middle web and wide sleeper ends, even for prestressed concrete sleepers .
  • a sufficiently high central web with a correspondingly large moment of inertia is available, the rigidity of which is sufficient to prevent any bending of the sleeper body in the longitudinal direction, which could lead to an inclined position of the rails.
  • the measures proposed according to the invention lead overall to a considerable reduction in the steel requirement for a prestressed concrete sleeper.
  • the amount of prestressing steel customary in known sleepers decreases from approx. 5 kg per sleeper according to the invention by up to 40% to approx. 3 kg per sleeper.
  • the sleeper body 1 consists of two comparatively wide lateral support bodies 2, 2 ', which - for the sake of clarity - not shown - rail fastening, and a central part 3 with a comparatively narrow, high cross-section.
  • the sleeper body 1 is reinforced with four straight clamping elements 4, which are anchored at the sleeper ends 5, 5 'by means of end anchors 6.
  • the tensioning elements 4 consist of individual steel rods, wires or strands, which are guided so that they lie one above the other in a vertical plane V-V in the middle of the threshold (FIG. 4) and spread out radially towards the threshold ends 5, 5 '.
  • Your end anchorages 6 are evenly distributed over the surface of the preferably trapezoidal cross-section at the threshold ends 5, 5 '(Fig. 3). This arrangement allows the formation of a very slim middle part 3 while maintaining sufficient concrete coverage (Fig. 4).
  • FIG. 2 and 3 show the combination of two clamping elements 4a, 4b and 4c, 4d to form a pair of clamping elements.
  • the tensioning elements 4a, 4b and 4c, 4d of each pair of tensioning elements each have an inclination of the same size but in opposite directions with respect to the longitudinal axis L-L (FIG. 1) and run in horizontal planes parallel to one another (FIGS. 2 and 3).
  • the inclinations to one another and the distances between the clamping elements 4a, 4b and 4c, 4d, which form a pair, are selected such that no torsional moments occur.
  • the end anchors 6 are arranged on both threshold ends 5, 5 'in the same way.
  • FIG. 5 it is also indicated in FIG. 5 how the clamping elements 4c and 4d forming a pair can also be arranged between the clamping elements 4a and 4b forming the other pair in order to avoid the generation of torsional moments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Bridges Or Land Bridges (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP89117094A 1988-09-24 1989-09-15 Eisenbahnschwelle aus Spannbeton Expired - Lifetime EP0361227B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89117094T ATE81691T1 (de) 1988-09-24 1989-09-15 Eisenbahnschwelle aus spannbeton.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832504 1988-09-24
DE3832504A DE3832504A1 (de) 1988-09-24 1988-09-24 Eisenbahnschwelle aus spannbeton

Publications (3)

Publication Number Publication Date
EP0361227A2 EP0361227A2 (de) 1990-04-04
EP0361227A3 EP0361227A3 (en) 1990-06-20
EP0361227B1 true EP0361227B1 (de) 1992-10-21

Family

ID=6363648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117094A Expired - Lifetime EP0361227B1 (de) 1988-09-24 1989-09-15 Eisenbahnschwelle aus Spannbeton

Country Status (5)

Country Link
EP (1) EP0361227B1 (ja)
AT (1) ATE81691T1 (ja)
DE (1) DE3832504A1 (ja)
ES (1) ES2036011T3 (ja)
MX (1) MX172187B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9238891B1 (en) 2014-07-01 2016-01-19 Sumacano Real Estate Llc High strength, integrally pre-stressed monoblock concrete crosstie with optimal geometry for use in ballasted railways

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135164A (en) * 1990-09-07 1992-08-04 Dyckerhoff & Widmann Aktiengesellschaft Prestressed concrete railroad tie
DE4203895C2 (de) * 1992-02-11 1996-08-29 Dyckerhoff & Widmann Ag Einrichtung zum Herstellen von Fertigbauteilen aus Spannbeton mit sofortigem Verbund, insbesondere von Spannbetonschwellen
DE4344253A1 (de) * 1993-12-23 1995-06-29 Butzbacher Weichenbau Gmbh Schwelle
DE9411341U1 (de) * 1994-07-13 1994-09-15 Pfleiderer Verkehrstechnik Gmbh & Co Kg, 92318 Neumarkt Monoblock-Schwelle
CN103334350B (zh) * 2013-07-16 2015-08-12 中国铁道科学研究院铁道建筑研究所 一种预应力混凝土轨枕、轨道板用搓丝定尺螺旋肋钢丝
CN111231105B (zh) * 2020-03-24 2024-09-20 北京智创赋能技术开发中心(有限合伙) 一种预应力轨枕钢筋自动穿丝机构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR960117A (ja) * 1950-04-13
CH37979A (de) * 1907-04-15 1907-10-15 Gottlieb Strahm Eisenbahnquerschwelle aus eisenarmiertem Beton
FR680547A (fr) * 1928-10-02 1930-05-01 Procédé de fabrication de pièces en béton armé
CH213850A (de) * 1940-01-18 1941-03-31 Rueping Max Eisenbeton-Querschwelle.
DE803728C (de) * 1950-01-18 1951-04-09 Ludwig Jubitz Dipl Ing Verfahren zum Vorspannen von Stahlbeton-Umschnuerungen
DE937827C (de) * 1954-03-28 1956-01-19 Dyckerhoff & Widmann Ag Eisenbahnschwelle aus Stahlbeton
DE1247188B (de) * 1962-03-16 1967-08-10 Emch & Berger Ingenieurbuero G Verfahren zum Herstellen von Spannbetonschwellen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9238891B1 (en) 2014-07-01 2016-01-19 Sumacano Real Estate Llc High strength, integrally pre-stressed monoblock concrete crosstie with optimal geometry for use in ballasted railways
US9890503B2 (en) 2014-07-01 2018-02-13 Gutanna Innovative Concrete And Technologies, Llc High strength, integrally pre-stressed monoblock concrete crosstie with optimal geometry for use in ballasted railways

Also Published As

Publication number Publication date
EP0361227A3 (en) 1990-06-20
ES2036011T3 (es) 1993-05-01
MX172187B (es) 1993-12-07
EP0361227A2 (de) 1990-04-04
ATE81691T1 (de) 1992-11-15
DE3832504A1 (de) 1990-04-05
DE3832504C2 (ja) 1991-12-12

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