ISO INTERNATIONAL STANDARD 22480-2 First edition 2022-01 Railway applications Concrete sleepers and bearers for track - Part 2: Prestressed monoblock sleepers Applications ferroviaires-Traverses etsupports en béton pour la voie- Partie2:Traversesmonoblocsprécontraintes Referencenumber ISO 22480-2:2022(E) Tso IS0 2022 IS022480-2:2022(E) COPYRIGHTPROTECTEDDOCUMENT IS02022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on or IsO's member body in the country of the requester IsO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier,Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii IS02022-Allrightsreserved IS022480-2:2022(E) Contents Page Foreword iv 1 Scope 1 2 Normativereferences 1 3 Terms and definitions 1 4 Symbolsandabbreviatedterms. 1 5 Bending tests 2 5.1 General. 2 5.2 Test arrangements 3 5.2.1 Rail seat section 3 5.2.2 Centresection 4 5.3 Test procedures 5 5.3.1 General. 5 5.3.2 Initial reference test loads 6 5.3.3 Static tests 6 5.3.4 Cyclic test 12 5.3.5 Fatiguetest 13 5.4 Acceptance criteria 13 5.4.1 General 13 5.4.2 Statictest. 13 5.4.3 Cyclic test. 14 5.4.4 Fatigue test 14 5.5 Design approval tests 14 5.5.1 General 14 5.5.2Bendingmoment evaluation 15 5.6 Routinetests 15 5.6.1 General 15 5.6.2Positive static test at rail seat section 15 5.7 Test report. 15 Annex A (normative) Detailed drawings of the test arrangements .16 Bibliography .19 @IS0 2022-All rights reserved iii