SIST EN 13146-2:2012

Railway applications - Track - Test methods for fastening systems - Part 2: Determination of torsional resistance

This European Standard specifies a laboratory test procedure to determine the moment necessary to rotate a rail, secured to a sleeper by a rail fastening assembly, through 1° in a plane parallel to the base of the rail. The value obtained can be used in track stability calculations.
The test is not applicable to embedded rails.
This test procedure applies to a complete fastening assembly.

Bahnanwendungen - Oberbau - Prüfverfahren für Schienenbefestigungssysteme - Teil 2: Ermittlung des Verdrehwiderstandes

Diese Europäische Norm legt ein Laborprüfverfahren zur Ermittlung des Verdrehwiderstandes fest, welcher erforderlich ist, um eine Schiene, welche mittels eines Schienenbefestigungssystems auf einer Schwelle befestigt ist, um 1° in einer Ebene parallel zum Schienenfuß zu drehen. Der ermittelte Wert lässt sich für Berechnungen der Gleisstabilität verwenden.
Die Prüfung ist nicht für eingebettete Schienen anwendbar.
Das Prüfverfahren gilt für ein komplettes Schienenbefestigungssystem.

Applications ferroviaires - Voie - Méthodes d'essai pour les systèmes de fixation - Partie 2: Détermination du couple d'encastrement

La présente partie de l’EN 13146 prescrit une méthode d'essai en laboratoire visant à déterminer le moment nécessaire pour faire subir à un rail, maintenu sur une traverse au moyen d'un système de fixation, une rotation de 1 degré dans un plan parallèle à la base du rail. La valeur obtenue peut être utilisée pour effectuer des calculs relatifs à la stabilité de la voie.
L’essai ne s’applique pas aux rails enrobés.
L'application de cette méthode d'essai est destinée à un ensemble de fixation complet.

Železniške naprave - Zgornji ustroj - Preskušanje pritrdilnih sistemov - 2. del: Ugotavljanje torzijskega odpora

Ta evropski standard določa laboratorijski preskusni postopek za ugotavljanje momenta, potrebnega za obračanje tirnice, pritrjene na prag s pritrdilnim sestavom za tirnice, prek 1° v ravnini, vzporedni z vznožjem tirnice. Pridobljeno vrednost je mogoče uporabiti v izračunih stabilnosti zgornjega ustroja. Preskus se ne uporablja za vgrajene tirnice. Ta preskusni postopek se uporablja za celoten pritrdilni sestav.

General Information

• Status: Published
• Public Enquiry End Date: 24-Mar-2010
• Publication Date: 14-May-2012
• ICS: 93.100 - Construction of railways
• Technical Committee: IŽNP - Reilway applications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 07-May-2012
• Due Date: 12-Jul-2012
• Completion Date: 15-May-2012
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• Mandate: M/275 - Mandate to CEN/CENELEC/ETSI for standardization in the field of railway equipment on the interoperability of the Trans-European high-speed rail system
• Mandate: M/334 - Mandate for programming and standardisation addressed to CEN, CENELEC and ETSI in the field of the Interoperability of the trans-european conventional rail system
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: EN 13146-2:2012 - Railway applications - Track - Test methods for fastening systems - Part 2: Determination of torsional resistance

Relations

• Replaces: SIST EN 13146-2:2004 - Railway applications - Track - Test methods for fastening systems - Part 2: Determination of torsional resistance
• Effective Date: 01-Jul-2012

Overview

EN 13146-2:2012 (CEN) defines a laboratory test method to determine the torsional resistance of rail fastening systems. The standard specifies how to establish the moment required to rotate a rail, secured to a sleeper by a complete fastening assembly, through 1° in a plane parallel to the rail base. The value is intended for use in track stability calculations and performance verification. The procedure is not applicable to embedded rails.

Key practical points:

• Applies to a complete fastening assembly (all components, baseplate and pad where appropriate).
• Test generates a moment-versus-angular-displacement curve from which the 1° moment is extracted.
• Typical use: design validation, quality control and track stability assessment.

Key Topics

• Test principle: A transverse load is applied to the rail foot while the sleeper is restrained; rail movement is recorded and load increased until a minimum angular rotation is achieved. The moment corresponding to 1° is determined from the moment/displacement graph.
• Apparatus highlights:
  • Rail: short unlaminated section of the intended rail profile.
  • Actuator: capable of applying at least 25 kN, at a controlled rate of (2 ± 1) kN/min.
  • Displacement measurement: angular accuracy to ±0.1° or linear devices compliant with EN ISO 9513; linear resolution may be ±0.01 mm when used.
  • Force measurement: instruments conforming to EN ISO 7500-1 class 1 over the required range.
  • Calibration: all measuring systems must have traceable calibration to SI units and be periodically verified.
• Procedure notes:
  • The rail is fixed to one rail seat on a sleeper or half-sleeper and the sleeper restrained on a rigid base.
  • Tests are performed with fastenings in line or, if offset, with two arrangements as specified.
  • The rail is rotated to at least 1.5° during loading; the moment for 1° is then interpolated from the plot of moment vs. angular displacement.
  • Load and displacement are recorded continuously; typical measurement tolerances are specified in the standard.

Applications

• Inputs to track stability and lateral-torsional resistance calculations.
• Verification of fastening system performance during design, acceptance testing and quality control.
• Comparative assessment of fastening concepts where torsional behaviour influences track performance under vehicle dynamics.

Related Standards

• EN 13146 series (other parts: Part 1 - longitudinal restraint; Part 3 - impact attenuation; Part 4 - repeated loading; Part 5 - electrical resistance; Part 6 - severe environments; Part 7 - clamping force; Part 8 - in service testing; Part 9 - stiffness)
• EN 13481-1:2012 (performance requirements and definitions)
• EN ISO 7500-1 and EN ISO 9513 (calibration and measurement guidance)

This summary highlights practical value and test constraints defined in EN 13146-2:2012 for engineers, test laboratories and specification authors working with rail fastening systems.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Zgornji ustroj - Preskušanje pritrdilnih sistemov - 2. del: Ugotavljanje torzijskega odporaBahnanwendungen - Oberbau - Prüfverfahren für Schienenbefestigungssysteme - Teil 2: Ermittlung des VerdrehwiderstandesApplications ferroviaires - Voie - Méthodes d'essai pour les systèmes de fixation - Partie 2: Détermination du couple d'encastrementRailway applications - Track - Test methods for fastening systems - Part 2: Determination of torsional resistance93.100Gradnja železnicConstruction of railwaysICS:Ta slovenski standard je istoveten z:EN 13146-2:2012SIST EN 13146-2:2012en,de01-julij-2012SIST EN 13146-2:2012SLOVENSKI
STANDARDSIST EN 13146-2:20041DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13146-2
April 2012 ICS 93.100 Supersedes EN 13146-2:2002English Version
Railway applications - Track - Test methods for fastening systems - Part 2: Determination of torsional resistance
Applications ferroviaires - Voie - Méthodes d'essai pour les systèmes de fixation - Partie 2: Détermination du couple d'encastrement
Bahnanwendungen - Oberbau - Prüfverfahren für Schienenbefestigungssysteme - Teil 2: Ermittlung des Verdrehwiderstandes This European Standard was approved by CEN on 26 November 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13146-2:2012: ESIST EN 13146-2:2012

Moment of load-displacement graph . 8 SIST EN 13146-2:2012
...