BS-EN-13146-4-2002.pdf

BRITISH STANDARD BS EN 13146-4:2002 Incorporating Amendment No. 1 Railway applications Track Test methods for fastening systems Part 4: Effect of repeated loading The European Standard EN 13146-4:2002, with the incorporation of amendment A1:2006, has the status of a British Standard ICS 93.100 ? BS EN 13146-4:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 28 November 2002 © BSI 2006 ISBN 0 580 40859 0 National foreword This British Standard is the official English language version of EN 13146-4:2002, including amendment A1:2006. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated in the text by !“. The UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway track components, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1658529 September 2006See national foreword EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 13146-4 November 2002 ICS 93.100 English version Railway applications - Track - Test methods for fastening systems - Part 4: Effect of repeated loading Applications ferroviaires - Voie - Méthodes d'essai pour les systèmes de fixation - Partie 4: Effets produits par des charges répétitives Bahnanwendungen - Oberbau - Prüfverfahren für Schienenbefestigungssysteme - Teil 4: Dauerschwingversuch This European Standard was approved by CEN on 2 October 2002. 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 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13146-4:2002 E + A1 August 2006 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions, symbols and abbreviations.4 3.1Terms and definitions4 3.2Symbols and abbreviations4 4Principle5 5Apparatus .6 5.1Rail.6 5.2Actuator 6 5.3Load application head.6 5.4Displacement measuring instruments.6 5.5Load measuring instruments6 5.6Verification of calibration6 6Test specimens6 6.1Sleeper or other rail support.6 6.2Fastening6 7Procedure for one rail seat .6 7.1General6 7.2Preparation for test7 7.2.1In line fastening7 7.2.2Offset fastening7 7.3Clamping force.7 7.4Longitudinal rail restraint7 7.5Vertical stiffness 7 7.6Cyclic loading.8 7.7Repeat tests8 7.8Final inspection8 8Alternative test procedure 10 8.1General10 8.2Apparatus .10 8.2.1General10 8.2.2Loading frame 10 8.3Procedure .12 8.3.1General12 8.3.2Preparation for test12 8.3.3Clamping force.12 8.3.4Longitudinal rail restraint12 8.3.5Vertical stiffness 13 8.3.6Cyclic loading.13 8.3.7Repeat tests13 8.3.8Final inspection13 9Test report 13 EN 13146-4:2002 3 Foreword This document (EN 13146-4:2002) has been prepared by Technical Committee CEN /TC 256 “Railway applications“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest by May 2003. This document has been prepared under mandates (M/0241), M/2752) given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). No existing European Standard is superseded. This European Standard is one of the series EN 13146 as listed below : Part 1 : Determination of longitudinal rail restraint Part 2 : Determination of torsional resistance Part 3 : Determination of attenuation of impact loads Part 4 : Effect of repeated loading Part 5 : Determination of electrical resistance Part 6 : Effect of severe environmental conditions Part 7 : Determination of clamping force Part 8 : In service testing These support the requirements in the series EN 13481 Railway applications Track Performance requirements for fastening systems Parts 1 to 7. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 1) Railway equipment. 2) Standardization in the field of Railway Equipment on the Interoperability of the Trans-European High-Speed Rail System. EN 13146-4:2002 blank EN 13146-4:2002 (E) 4 Foreword to amendment A1 This document (EN 13146-4:2002/A1:2006) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This Amendment to the European Standard EN 13146-4:2002 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, 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 and United Kingdom. EN 13146-4:2002 5 1 Scope This Part of this European Standard specifies a laboratory test procedure for applying repeated displacement cycles representative of the displacements caused by traffic on railway track. It is used for assessing the long term performance of direct fastening systems. This test procedure applies to a complete fastening assembly. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 13146-1, Railway applications Track Test methods for fastening systems Part 1: Determination of longitudinal rail restraint. EN 13146-7, Railway applications Track Test methods for fastening systems Part 7: Determination of clamping force. EN 13481-1:2002, Railway applications Track Performance requirements for fastening systems Part 1: Definitions. EN 13481-2, Railway applications Track Performance requirements for fastening systems Part 2: Fastening systems for concrete sleepers. EN 13481-3, Railway applications Track Performance requirements for fastening systems Part 3: Fastening systems for wood sleepers. EN 13481-4, Railway applications Track Performance requirements for fastening systems Part 4: Fastening systems for steel sleepers. EN 13481-5, Railway applications Track Performance requirements for fastening systems Part 5: Fastening systems for slab track. 3 Terms and definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 13481-1:2002 apply. 3.2 Symbols and abbreviations For the purposes of this European Standard, the following symbols apply. angle between the load line and a line normal to the base of the sleeper, in degrees; EN 13146-4:2002 ENV 13481-6, Railway applications Track Performance requirements for fastening systems Part 6: Special fastening systems for attenuation of vibration. !EN 13481-7“, Railway applications Track Performance requirements for fastening systems Part 7: Special fastening systems for switches and crossing and check rails. 6 dmean vertical displacement of rail during determination of vertical stiffness, in mm; Fmaximum axial longitudinal load on the rail without non-elastic displacement occurring, in kN; kvertical stiffness of fastening assembly measured between 5 kN and 80 kN, in MN/m; PLcomponent of load parallel to the base of the sleeper, in kN; PVcomponent of load normal to the base of the sleeper, in kN; L/V = PL/Pv = tan ; Rradius of curvature of the track, in m; X position of the line of application of PL below the centre of curvature of the gauge corner of the rail head as shown in Figure 1, in mm; Key 1centre of gauge corner radius 2line of load application NOTEThe angle of load application is shown in Figure 3. Figure 1 Position of load application 4 Principle A constant amplitude, cyclic force is applied by a single actuator at a predetermined load line and position on the rail head. The load, position and line of application to be used are determined from the vertical stiffness of the fastening assembly, axle loads and curve conditions of the track for which the fastening assembly is being tested. Curve conditions include radius and cant deficiency. Performance is determined by the change in clamping force, longitudinal rail restraint, vertical stiffness and rail position, and visual inspection of the components during test. EN 13146-4:2002 7 5 Apparatus 5.1 Rail Short lengths of rail (approximately 0,5 m per rail seat), of the section for which the fastening assembly under test is designed. The rail shall be unlaminated and have no loose rust on the surface nor be polished on the foot by repeated testing. The head of the rail may be modified to accommodate the load application head. In this case the dimension X, as shown in Figure 1, refers to the design rail section for the fastening assembly. NOTEThe rail should also be suitable for the determination of longitudinal rail restraint. 5.2 Actuator Actuator capable of generating a load of up to 150 kN in a cyclic manner at a frequency of (4±1) Hz. NOTEFor simultaneous loading of two and four rail seats the required capacity will be correspondingly greater. 5.3 Load application head A head in contact with the rail which is capable of transmitting the applied load to a rail at the required position relative to the rail head. 5.4 Displacement measuring instruments Instruments capable of measuring the displacement of the rail, relative to the sleeper, within ± 0,01 mm. 5.5 Load measuring instruments Instruments capable of measuring the applied load within ± 0,3 kN. 5.6 Verification of calibration The calibration of actuators and measuring instruments shall be verified using equipment having traceability to European or International Standards using the International System of Units (SI). 6 Test specimens 6.1 Sleeper or other rail support A sleeper, half sleeper, concrete block or other rail support with cast-in fastening components or holes, and rail seats, as made without modification for this test. It is recommended that two sleepers or half sleepers are used if the cast-in fastening components or holes are non-symmetrical about the longitudinal centre line of the sleeper. 6.2 Fastening All fastening components as used in track. 7 Procedure for one rail seat 7.1 General The following procedure is for the test when a rail is fixed to one end of the sleeper or half sleeper. When two rails are used the procedure in clause 8 shall be used. EN 13146-4:2002 8 The sequence of tests shall be 7.3, 7.4, 7.5, 7.6, 7.5 ,7.4, 7.3 performed on test specimens assembled in accordance with 7.2.1 or 7.2.2. At no time during the test sequence shall any part of the fastening assembly be adjusted, retightened or modified. 7.2 Preparation for test 7.2.1 In line fastening If the fastenings are in line fix a short length of rail to one rail seat using the fastening components as assembled in track. 7.2.2 Offset fastening If the fastenings are non-symmetrical fix a short length of rail to one rail seat on each of two adjacent sleepers or half sleepers as shown in Figure 2. 7.3 Clamping force Determine the clamping force of the assembly using the procedure in EN 13146-7. Figure 2 Arrangement of test sleepers for offset fastenings 7.4 Longitudinal rail restraint Determine the longitudinal rail restraint using the procedure in EN 13146-1. If the test is on two adjacent rail seats as described in 7.2.2 the result shall be expressed as : longitudinal rail restraint (F) = (measured value)/2 kN. The tensile load applied to the rail before and after the r