ISO/TR TECHNICAL REPORT 19623 First edition 2019-06 TimberstructuresGluedlaminated timberAssignmentofglued laminatedtimbercharacteristicvalues from laminate properties Structuresenbois-Bois lamelle-colle-Valeurscaracteristiquesdu boislamelle-collesurlabasedesproprietesdeslamelles Referencenumber IS0/TR19623:2019(E) OS @IS02019 IS0/TR19623:2019(E) COPYRIGHTPROTECTEDDOCUMENT IS02019 All rights reserved. Unless otherwise specified, or required in the context ofits implementation, no part of this publication may below or Iso's memberbody in thecountry ofthe requester. ISO copyright office CP 40i: Ch.de Blandonnet8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax: +4122 749 09 47 Email:copyright@iso.org Website: www.iso.org Published in Switzerland ii IS0 2019-All rights reserved IS0/TR19623:2019(E) Contents Page Foreword .V Introduction .vi 1 Scope .1 2 Normativereferences ..1 3 Terms and definitions .1 4 Europeanmethodologies .1 General. 4.1 .1 .1 4.1.1 Timber 4.1.2 Relatedmaterial properties .2 4.2 Verificationfrom classificationofstandardisedbeamlay-ups andlamination propertiesofgluedlaminatedtimber. .2 4.2.1 Properties of the boards .2 4.2.2 Strength offinger joints 3 4.2.3 Beamlay-upandstrengthclass 4 4.3 Classification,verificationaccordingtomethodBfromcrosssectional layupand properties of boards and finger joints. .6 4.3.1 Propertiesoftheboards 6 4.3.2 .7 Strengthoffingerjoints 4.3.3 Determinationofcharacteristicvaluesforgluedlaminatedtimber 4.4 Verificationsfromfull scaletestswithglulam .8 4.4.1 Propertiesoftheboards .8 4.4.2 Strengthof finger joints .8 Strength, stiffness and density properties of glulam derived from testing 4.4.3 8 4.5 Resawnglulam .8 5 US methodologies. .9 5.1 General. 9 5.2 ASTMD3737 .9 5.2.1 General 9 5.2.2 Ik/lcanalysis 10 5.3 Tensionlaminations 14 5.4 Volumefactor .15 5.5 Otherglulamproperties. 15 5.6 ANSIA190.1. .16 5.7 Performance-based standard .16 Australian/NewZealandmethodologies .17 6 6.1 Directmethod .17 Tensiontestsofbondedlaminationpairs .17 6.1.1 6.1.2 Majoraxisbendingstrengthofglulamassemblies 18 6.1.3 Ratioofglulambeambendingtobondedlaminationpairtensionstrength .19 6.1.4 ComparisonofglulamassemblybendingstrengthbetweenEN14080and .19 Formula (27) values.. 6.1.5 Depthandvolumeeffects .20 6.1.6 Minoraxisproperties inbendingalsoknownasverticalglulam .20 6.1.7 Tension strength 21 6.1.8 Shearstrength 21 6.1.9 FrameworkofAS/NZS1328 21 6.2 AS/NZS1328 21 6.2.1 Standardlaminationrequirements 21 6.2.2 Customlaminationrequirements 23 6.2.3 Standard glulamand glued structuraltimber .24 6.2.4 Customglulamandgluedstructural timber 25 6.3 AS/NZS1328:2017,AppendixB .25 IS0 2019-All rights reserved ili