ISO INTERNATIONAL STANDARD 8375 Third edition 2017-06 Timber structures Glued laminated timber Test methods for determination of physical and mechanical properties Structures en bois -Bois lamellé-collé - Méthodes d'essai pour la détermination de certaines propriétés physiques et mécaniques Reference number IS0 8375:2017(E) International Organization for Standardization @ IS0 2017 e=ZHEJIANG INSTOF STANDARDIZATION C1 5956617 mitted without license from IHS IS0 8375:2017(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. ISOcopyrightoffice 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 STANDARDIZzRoISQ7 - All rights reserved Not for Resale, 2017/9/11 05:45:34 networking permited withoutlicense from IHS IS0 8375:2017(E) Contents Page Foreword ..V 1 Scope .1 2 Normative references ..1 3 Terms and definitions 4 Symbols and suffixes ..2 4.1 Symbols .2 4.2 Suffixes 5 Determination of dimensions of test specimens. ..3 6 Determination of moisture content of test specimens ..3 7 Determination of density of test specimens ..4 8 Conditioning of test specimens ..4 9 Determination of local (shear-free) modulus of elasticity of the beam in bending ..4 9.1 Test specimen. ..4 9.2 Procedure. .4 9.3 Expression of results ..5 10 Determination of global modulus of elasticity of the beam in bending. .6 10.1 Test specimen. .6 10.2 Procedure .6 10.3 Expression of results. ..7 11 Determination of shear modulus of the beam - Variable span method .7 11.1 General .7 11.2 Test piece .8 11.3 Procedure ..8 11.4 Expression of results 11.4.1 Determination of Ki and K2 .9 11.4.2 Shear modulus. ..9 12 Determination of bending strength of the beam ..10 12.1 Test specimen. .10 12.2 Procedure ..10 12.3 Expression of results ..1 13 Determination of the modulus of elasticity in tension parallel to the grain of the glued laminated timber. ..11 13.1 General. .11 13.2 Test specimen. .11 13.3 Procedure .11 13.4 Expression of results. ..12 14 Determination of the parallel to the grain tension strength of the glued .12 laminated timber 14.1 Test specimen. .12 14.2 Procedure 14.3 Expression of results. ..12 15 Determination of the modulus of elasticity in compression parallel to the grain of the glued laminated timber. .13 15.1 General .13 15.2 Test specimen. .13 15.3 Procedure .13 15.4 Expression of results ..13 ii icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 d without license from IHS Not for Resale, 2017/9/11 05:45:34