1、June 2012 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 93
2、.100!$|ts“1898180www.din.deDDIN EN 13146-2Railway applications Track Test methods for fastening systems Part 2: Determination of torsionalresistanceEnglish translation of DIN EN 13146-2:2012-06Bahnanwendungen Oberbau Prfverfahren fr Schienenbefestigungssysteme Teil 2: Ermittlung desVerdrehwiderstand
3、esEnglische bersetzung von DIN EN 13146-2:2012-06Applications ferroviaires Voie Mthodes dessai pour les systmes de fixation Partie 2: Dtermination du coupledencastrementTraduction anglaise de DIN EN 13146-2:2012-06SupersedesDIN EN 13146-2:2003-02www.beuth.deIn case of doubt, the German-language orig
4、inal shall be considered authoritative.Document comprises 10 pages05.12 DIN EN 13146-2:2012-06 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 256 “Railway applications” (Secretariat: DIN, Germany). The responsible German body
5、involved in its preparation was the Normenausschuss Fahrweg und Schienen-fahrzeuge (Railway Standards Committee), Working Committee NA 087-00-01-04 UA Schienenbefestigungs-systeme. Amendments This standard differs from DIN EN 13146-2:2003-02 as follows: a) in the foreword of the EN the standards ser
6、ies EN 13146, Railway applications Track Test methods for fastening systems, has been completed; b) the normative references have been updated; c) the standard has been editorially revised. Previous editions DIN EN 13146-2: 2003-02 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13146-2 April 2
7、012 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 - Mthodes dessai pour les systmes de fixation - Partie 2: Dtermination du couple dencastrement B
8、ahnanwendungen - Oberbau - Prfverfahren fr 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
9、 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 ve
10、rsions (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 Austri
11、a, 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
12、. 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: EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEN 13146-2
13、:2012 (E) 2 Contents Page Foreword 31 Scope. 42 Normative references 4 3 Terms and definitions 44 Principle 45 Apparatus . 45.1 Rail . 45.2 Actuator 45.3 Displacement measuring instruments . 55.4 Force measuring instruments 55.5 Verification of calibration 56 Test specimens 56.1 Rail support 56.2 Fa
14、stening 57 Procedure . 67.1 Preparation for test 67.2 Loading and measurement with fastenings in line 67.3 Loading and measurement when fastenings offset . 67.4 Moment of load-displacement graph . 78 Test report 7Annex A (informative) Moment of load-displacement graph 8DIN EN 13146-2:2012-06 EN 1314
15、6-2:2012 (E) 3 Foreword This document (EN 13146-2:2012) 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 endor
16、sement, at the latest by 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 ident
17、ifying any or all such patent rights. This document supersedes EN 13146-2:2002. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. Detailed changes only have been made in this revision of EN 13146-2:2002. The procedure is
18、not applicable to embedded rail. This European 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: De
19、termination 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; Part 9: Determination of stiffness. These support th
20、e requirements in the series EN 13481 “Railway 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, Bulga
21、ria, 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 the United Kingdom. DIN EN 1314
22、6-2:2012-06EN 13146-2:2012 (E) 4 1 Scope 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
23、stability calculations. The test is not applicable to embedded rails. This test procedure applies to a complete fastening assembly. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated re
24、ferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13481-1:2012, Railway applications Track Performance requirements for fastening systems Part 1: Definitions EN ISO 7500-1:2004, Metallic materials Ve
25、rification 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 Calibration of extensometers used in uniaxial testing (ISO 9513:1999) 3 Terms and definitions
26、For the purposes of this document, the terms and definitions given in EN 13481-1:2012 apply. 4 Principle A transverse load is applied to the foot of a rail fixed to a single rail seat of a sleeper whilst the sleeper is restrained. Movement of the rail relative to the sleeper is recorded and the load
27、 increased until the rail has rotated through a minimum of 1,5. The moment to cause a displacement of 1 is then determined from a plot of moment of load against displacement. 5 Apparatus 5.1 Rail A short length of rail of the section for which the fastening assembly under test is designed. The rail
28、shall be unlaminated and have neither loose rust on the surface nor be polished on the foot by repeated testing. 5.2 Actuator Actuator capable of applying a force, of at least 25 kN, to the edge of the foot of the rail, normal to the rail and parallel to the plane of the foot of the rail, at a contr
29、olled rate of (2 1) kN/min as shown in Figure 1. DIN EN 13146-2:2012-06EN 13146-2:2012 (E) 5 5.3 Displacement measuring instruments The instruments shall be capable of measuring the displacement of the rail relative to its support to 0,1. If linear measurement of displacement is used contact instrum
30、ents shall conform to EN ISO 9513:2002, Table 2, Class 2 and be capable of measuring displacement to 0,01 mm. 5.4 Force measuring instruments Instruments conforming to EN ISO 7500-1:2004, class 1 over the required range of force. 5.5 Verification of calibration The calibration of actuators and measu
31、ring instruments shall be verified periodically using equipment having certified traceability to European or International Standards using the International System of Units (SI). 6 Test specimens 6.1 Rail support A sleeper or half sleeper with cast-in fastening components or holes and rail seats, as
32、 made without modification for this test. 6.2 Fastening The complete fastening assembly including all components and baseplate, where appropriate. DIN EN 13146-2:2012-06 EN 13146-2:2012 (E) 6 300 mm1234Key 1 test rail support 2 fastening assembly including pad 3 rail as described in 5.1 4 displaceme
33、nt measuring instrument Figure 1 Test arrangement with in-line fastenings 7 Procedure 7.1 Preparation for test Fix the short length of rail to one rail seat of the rail support using the fastening components as assembled in track. Support the sleeper on a rigid horizontal base and restrain it from h
34、orizontal movement. 7.2 Loading and measurement with fastenings in line Using the arrangement shown in Figure 1, apply a load to the rail and push the rail to a position where the rail foot in the rail seat area diagonally contacts both fastening inserts or insulators or shoulders. Move the actuator
35、 to the opposite side of the rail. Apply an increasing load and continuously measure and record the moment of load to 0,03 kNm and the rail displacement relative to the sleeper to 0,01. When the rail has displaced by a minimum of 1,5, remove the load. After a minimum of 3 min apply the load to the o
36、pposite side of the rail and repeat the same loading cycle. Plot the moment of load against the angular displacement of the rail for each loading cycle. NOTE To avoid damage to the fastening assembly, loading should be stopped as soon as the rail contacts both fastening inserts or insulators or shou
37、lders. 7.3 Loading and measurement when fastenings offset If the fastenings are offset from the rail support centre line, perform two tests on the same assembly with each arrangement shown in Figure 2. Plot the moment of load against the angular displacement of the rail for each loading cycle. DIN E
38、N 13146-2:2012-06 EN 13146-2:2012 (E) 7 300 mm 300 mm11Key 1 load Figure 2 Test arrangement with offset fastenings 7.4 Moment of load-displacement graph A typical moment of load-displacement graph is shown in Annex A. The data for track stability can be extracted from such graphs. 8 Test report The
39、test report shall include at least the following information: a) number, title and date of issue of this European Standard; b) name and address of laboratory performing the test; c) date test performed; d) name, designation and description of fastening assembly, including individual components, test
40、ed; e) origin of test specimens; f) rail section used in test; g) test arrangement; h) graphs of moment of load versus rail angle for each direction of loading. DIN EN 13146-2:2012-06 EN 13146-2:2012 (E) 8 Annex A (informative) Moment of load-displacement graph Figure A.1 shows a typical graph of angular displacement of the rail against the moment of load. 2,01,51,00,50,0-0,5-1,0-1,5-2,01234Key 1 displacement degrees 2 moment of load (kNm) 3 1sttest 4 return test Figure A.1 Typical moment of load-displacement graph DIN EN 13146-2:2012-06
