ISO/TR TECHNICAL REPORT 21136 First edition 2017-04 Timber structures Vibration performance criteria for timber floors Structures en bois - Criteres de performance vibratoire pour les planchers en bois Reference number ISO/TR 21136:2017(E) so International Organization for Standardization see=ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02017 Not for Resale, 2017/6/28 00:56:35 No reproduction or networking permitted without license from IHS IS0/TR 21136:2017(E) COPYRIGHT PROTECTED DOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either Iso at the address below or Iso's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinir DrganizationforStandardization Licensee-ZHEJIANG INST OF STANDARDIZAISQ 017 - All rights reserVed Not for Resale, 2017/6/28 00:56:35 No reproduction or networking permited without license from IHS IS0/TR 21136:2017(E) Contents Page Foreword ..iv Introduction .V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions .1 4 Background ..1 5 Mechanism of timber floor vibration response to human normal walking actions .6 5.1 Characteristics of footstep force .6 5.2 Responses of timber floors to the footstep force .7 5.3 Parameters correlated to human acceptability of timber floor vibration. ..8 5.4 General forms of human acceptability criterion of timber floor vibration 6 Comprehensive procedure using a large database. .8 6.1 General .8 6.2 Subjective evaluation procedure and questionnaire for laboratory floors. 6.3 Subjective evaluation procedure and questionnaire for field timber floors ..10 6.4 Statisticalanalysistoderivehumanacceptabilitycriterionfromtimberfloor vibrationdatabase ..10 6.5 Verification of the criterion derived using a new database. .11 Simplified procedure using a small database .11 Annex A (informative) Subjective evaluation questionnaire for laboratory floors used by FPInnovations, Canada. .12 Annex B (informative) An example of the application of the comprehensive procedure to establish acceptability criterion for light frame timber floors in Canada 14 Annex C (informative) Example of application of the simplified procedure to establish acceptability criterion (design criterion) for cross laminated timber (CLT) floors in Canada 19 Annex D (informative) Ec5 design criteria and calculation methods for criterion parameters.. Annex E (informative) Hamm et al. design criteria and calculation methods for criterion parameters .26 Bibliography .28 ii =ZHEJIANG INST OF STANDARDIZATION C1 5956617 thout license from IHS