1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13146-4:2012Railway applications Track Test methods for fasteningsystemsPart 4: Effect of repeated loadingCopyright European Committee for Standardization Provided by IHS u
2、nder license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13146-4:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13146-4:2012.It supersedes BS EN 13146-4:2002 which is withdrawn.The UK participation in it
3、s preparation was entrusted to TechnicalCommittee RAE/2, Railway Applications - Track.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its
4、 correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 68149 3ICS 45.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strate
5、gy Committee on 30 April 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13146-4:2012EUROPEAN STANDARD NORME EUROP
6、ENNE EUROPISCHE NORM EN 13146-4 April 2012 ICS 93.100 Supersedes EN 13146-4:2002English Version Railway applications - Track - Test methods for fastening systems - Part 4: Effect of repeated loading Applications ferroviaires - Voie - Mthodes dessai pour les systmes de fixation - Partie 4: Effets pro
7、duits par des charges rptitives Bahnanwendungen - Oberbau - Prfverfahren fr Schienenbefestigungssysteme - Teil 4: Dauerschwingversuch 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 conditio
8、ns 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
9、 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 standard
10、s 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
11、and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR 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 1314
12、6-4:2012: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13146-4:2012EN 13146-4:2012 (E) 2 Contents Page Foreword 31 Scope. 42 Normative references 4 3 Terms and definiti
13、ons, symbols and abbreviations . 53.1 Terms and definitions 53.2 Symbols and abbreviations 54 Principle 65 Apparatus . 65.1 Rail . 65.2 Actuator 65.3 Load application head . 6 5.4 Displacement measuring instruments . 65.5 Force measuring instruments 65.6 Verification of calibration 66 Test specimens
14、 76.1 Sleeper or other rail support . 76.2 Fastening 77 Procedure for one rail 77.1 General 77.2 Preparation for test 77.2.1 In line fastening 77.2.2 Offset fastening 77.3 Clamping force . 87.4 Longitudinal rail restraint 87.5 Vertical static stiffness of fastening assembly . 87.6 Cyclic loading . 8
15、7.7 Repeat tests 137.8 Final inspection 138 Alternative test procedure. 138.1 General 138.2 Apparatus . 138.2.1 General 138.2.2 Loading frame 138.3 Procedure . 148.3.1 General 148.3.2 Preparation for test 148.3.3 Clamping force . 158.3.4 Longitudinal rail restraint 158.3.5 Vertical stiffness 158.3.6
16、 Cyclic loading . 158.3.7 Repeat tests 158.3.8 Final inspection 159 Test report 15Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13146-4:2012EN 13146-4:2012 (E) 3 Foreword
17、 This document (EN 13146-4:2012) 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 b
18、y October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such
19、patent rights. This document supersedes EN 13146-4:2002. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. In this revision of EN 13146-4:2002 the procedure has been modified for application to embedded rail. This Europea
20、n Standard is one of the series EN 13146 “Railway applications Track Test methods for fastening systems“ which consists of the following parts: Part 1: Determination of longitudinal rail restraint; Part 2: Determination of torsional resistance; Part 3: Determination of attenuation of impact loads; P
21、art 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; Part 9: Determination of stiffness. These support the requirements in the series EN 13481 “Railwa
22、y applications Track Performance requirements for fastening systems“. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark
23、, 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 the United Kingdom. Copyright European Committee for Standardization Provide
24、d by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13146-4:2012EN 13146-4:2012 (E) 4 1 Scope This European Standard specifies a laboratory test procedure for applying repeated displacement cycles representative of the displacements
25、 caused by traffic on railway track. It is used for assessing the long term performance of direct fastening systems. The procedure is applicable to surface mounted rail on sleepers, bearers and slab track, and embedded rail. This test procedure applies to a complete fastening assembly. 2 Normative r
26、eferences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applie
27、s. EN 13146-1:2012, Railway applications Track Test methods for fastening systems Part 1: Determination of longitudinal rail restraint EN 13146-7:2012, Railway applications Track Test methods for fastening systems Part 7: Determination of clamping force EN 13146-9:2009, Railway applications Track Te
28、st methods for fastening systems Part 9: Determination of stiffness EN 13481-1:2012, Railway applications Track Performance requirements for fastening systems Part 1: Definitions EN 13481-2:2012, Railway applications Track Performance requirements for fastening systems Part 2: Fastening systems for
29、concrete sleepers EN 13481-3:2012, Railway applications Track Performance requirements for fastening systems Part 3: Fastening systems for wood sleepers EN 13481-4:2012, Railway applications Track Performance requirements for fastening systems Part 4: Fastening systems for steel sleepers EN 13481-5:
30、2012, Railway applications Track Performance requirements for fastening systems Part 5: Fastening systems for slab track with rail on the surface or rail embedded in a channel EN 13481-7:2012, Railway applications Track Performance requirements for fastening systems Part 7: Special fastening systems
31、 for switches and crossings and check rails EN ISO 7500-1:2004, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system (ISO 7500-1:2004) EN ISO 9513:2002, Metallic materials Calibrati
32、on of extensometers used in uniaxial testing (ISO 9513:1999) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13146-4:2012EN 13146-4:2012 (E) 5 3 Terms and definitions, symb
33、ols and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13481-1:2012 apply. 3.2 Symbols and abbreviations For the purposes of this document, the following symbols apply. angle between the load line and a line normal to the running surf
34、ace of the rails, in degrees;F maximum axial longitudinal load on the rail without non-elastic displacement occurring, in kN; FSAmax force applied to assembly in measurement of static stiffness of assembly, in kN; L lateral component of force transmitted by the wheel to the rail head as shown in Fig
35、ure 1, in kN; PLcomponent of force parallel to the running surface of the rails in kN; PVcomponent of force normal to the running surface of the rails, in kN; V vertical component of load transmitted by the wheels to the running surface at the rail head as shown in Figure 1, in kN; X position of the
36、 line of application of PLbelow the centre of curvature of the gauge corner of the rail head as shown in Figure 1, in mm. NOTE 1 = tanVLPPVLNOTE 2 Running surface is defined in EN 13481-1:2012. VLX21Key 1 centre of gauge corner radius 2 line of load application Figure 1 Position of load application
37、Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13146-4:2012EN 13146-4:2012 (E) 6 4 Principle A constant amplitude, cyclic force is applied by a single actuator at a predet
38、ermined 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. Performance is determined by the
39、 change in clamping force, longitudinal rail restraint, vertical stiffness and rail position, and visual inspection of the components during test. 5 Apparatus 5.1 Rail Short lengths of rail (approximately 0,5 m per rail seat or longer if required), of the section for which the fastening assembly und
40、er test is designed. The rail shall be unlaminated and have neither 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 except when testing fastenings which support the web of the rail. In this case,
41、 the dimension X, as shown in Figure 1, refers to the design rail section for the fastening assembly. For embedded rail, the rail is part of the test specimen. 5.2 Actuator Actuator capable of applying a force of up to 150 kN in a cyclic manner at a frequency of (4 1) Hz. NOTE For simultaneous loadi
42、ng 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 force to a rail at the required position relative to the rail head. 5.4 Displacement measuring instruments Instr
43、uments conforming to EN ISO 9513:2002, Table 2, Class 2. The instruments shall be capable of measuring displacement of the rail, relative to the support, within 0,01 mm. Non-contact instruments may be used providing a procedure for verifying their calibration is used and recorded. NOTE Non-contact i
44、nstruments are outside the scope of EN ISO 9513. 5.5 Force measuring instruments Instruments conforming to EN ISO 7500-1:2004 and EN ISO 7500-1:2004/AC:2009, Class 1 and over the required range of force. 5.6 Verification of calibration The calibration of actuators shall be verified periodically in a
45、ccordance with EN ISO 7500-1 using equipment having traceability to European or International Standards using the International System of Units (SI). Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without l
46、icense from IHS-,-,-BS EN 13146-4:2012EN 13146-4:2012 (E) 7 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
47、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. For surface mounted rail on slab track, the fastening system shall be mounted in the centre of the top of a reinforced concrete block. The length
48、 of the block, normal to the rail, shall be 500 mm and the width 300 mm. If, for stability, it is necessary to test two rail seats, the width of the block shall be 2 the design fastening spacing in the track. The depth of the block shall be the depth of the slab or (200 10) mm, whichever is the smaller. For surface mounted fastening systems on slab track, with cont
