EN 13146-2:2012
(Main)Railway applications - Track - Test methods for fastening systems - Part 2: Determination of torsional resistance
General Information
- Abstract
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.
- Status
- Published
- Publication Date
- 03-Apr-2012
- Technical Committee
- CEN/TC 256 - Railway applications
- Drafting Committee
- CEN/TC 256/SC 1/WG 17 - Fastening systems
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 05-Jun-2023
- Completion Date
- 17-Sep-2026
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.
Relations
- Effective Date
- 08-Jun-2022
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
EN 13232-5:2005+A1:2011 - Railway applications - Track - Switches and crossings - Part 5: Switches - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
EN 13146-2:2012 is a standard published by the European Committee for Standardization (CEN). Its full title is "Railway applications - Track - Test methods for fastening systems - Part 2: Determination of torsional resistance". This standard covers: 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.
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.
EN 13146-2:2012 is classified under the following ICS (International Classification for Standards) categories: 93.100 - Construction of railways. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 13146-2:2012 has the following relationships with other standards: It is inter standard links to EN 13146-2:2002, EN ISO 9513:2002, EN ISO 7500-1:2004, EN 13481-1:2012, EN 13481-2:2022, EN 13481-7:2012, EN 13232-5:2005+A1:2011, EN 13232-7:2006+A1:2011, EN 13481-2:2012, EN 13481-4:2012, EN 13481-3:2022, EN 13232-6:2005+A1:2011, EN 13481-4:2022, EN 13481-2:2012+A1:2017, EN 13481-3:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 13146-2:2012 is associated with the following European legislation: EU Directives/Regulations: 2008/57/EC; Standardization Mandates: M/275, M/334, M/483. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 13146-2:2012 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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.
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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
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