ISO TR 21136-2017 Timber structures - Vibration performance criteria for timber floors《木结构 木质地板的振动性能标准》.pdf
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1、 ISO 2017 Timber structures Vibration performance criteria for timber floors Structures en bois Critres de performance vibratoire pour les planchers en bois TECHNICAL REPORT ISO/TR 21136 Reference number ISO/TR 21136:2017(E) First edition 2017-04 ISO/TR 21136:2017(E)ii ISO 2017 All rights reserved C
2、OPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Switzerland All rights reserved. Unless otherwise specified, 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 the internet or an intranet
3、, without prior written permission. Permission can be requested from either ISO at the address below or ISOs 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 copyrightiso.org w
4、ww.iso.org ISO/TR 21136:2017(E)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 foo
5、tstep 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 . 8 6 Comprehensive procedure using a large database . 8 6.1 General . 8 6.2 Subjective evaluation procedure and questionnaire for
6、 laboratory floors . 9 6.3 Subjective evaluation procedure and questionnaire for field timber floors .10 6.4 Statistical analysis to derive human acceptability criterion from timber floor vibration database 10 6.5 Verification of the criterion derived using a new database .11 7 Simplified procedure
7、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
8、.14 Annex C (informative) Example of application of the simplified procedure to establish acceptability criterion (design criterion) for cross laminated timber (CL T) floors in Canada .19 Annex D (informative) EC5 design criteria and calculation methods for criterion parameters .24 Annex E (informat
9、ive) Hamm et al. design criteria and calculation methods for criterion parameters .26 Bibliography .28 ISO 2017 All rights reserved iii Contents Page ISO/TR 21136:2017(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO mem
10、ber bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmen
11、tal and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance
12、 are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives). Attenti
13、on is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction a
14、nd/or on the ISO list of patent declarations received (see www .iso .org/ patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the voluntary nature of standards, the meaning of ISO specific term
15、s and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: w w w . i s o .org/ iso/ foreword .html This document was prepared by Technical Committee I
16、SO/TC 165, Timber structures.iv ISO 2017 All rights reserved ISO/TR 21136:2017(E) Introduction Timber floors are known to be prone to producing high level of vibration caused by human activities due to the light-weight nature of these systems. Given that human tolerance to floor vibration is rather
17、subjective and could be influenced by a number of vibration response parameters, such as frequency content, peak vibration level (e.g. displacement, velocity and acceleration), mean vibration level and damping, there has not been any general agreement among researchers and code writers on the human
18、acceptability criteria for design against objectionable floor vibration. With the advent of engineered timber floor products, it is necessary to provide generic guidelines on the establishment of human acceptability criteria for specific floor construction product. With the appropriate calculation p
19、rocedures for response parameters, such human acceptability criteria can then be used by designers to predict floor vibration performance at the design stage. Such human acceptability criteria can also be used to evaluate floor vibration performance in the field or laboratory testing according to th
20、e test procedures given in ISO 18324. 1To differentiate between these two types of human acceptability criteria, in this report, the criterion uses the measured parameters is called “Performance criterion”, and that uses the calculated parameters is called “Design criterion”. Given that human tolera
21、nce levels to floor vibration may vary between countries due to cultural differences, floor construction products, and construction practices, it is felt that floor vibration performance criterion developed in one region may not be directly applicable to the others. Consequently it is the view of th
22、e ISO/TC 165 that a more fruitful approach is to provide guideline methods to individual countries and regions to develop their own human acceptability criterion. This is the main purpose of this document. The methods reviewed in this document are intended to be used for establishing human acceptabi
23、lity criteria using the parameters that have been found to correlate well with human acceptability of timber floor systems. Generally a study is required that includes measurement or calculation of these parameters and a human subjective evaluation rating of the vibration performance of a number of
24、floor systems in the field or in the laboratory, and subsequent statistical analyses to determine the best human acceptability criterion function. The proposed methods have been published in numerous research reports and peer-reviewed papers based on significant research efforts over the last four d
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