ISO INTERNATIONAL STANDARD 22389-1 First edition 2010-05-15 Timber structures Bending strength of I-beams - Part 1: Testing, evaluation and characterization Structures en bois Résistance a la flexion des poutres en I - Partie 1: Essais, évaluation et caractérisation Reference number ISO 22389-1:2010(E) @ ISO 2010 HS under ed without license from IHS Not for Resale ISO 22389-1:2010(E) Contents Page Foreword Introductior 1 Scope 2 Normative references 3 Terms and definition: 4 Materials 4.1 Flangestock 4.2 Webmaterial 4.3 Adhesives 5 Product evaluation 5.1 General 5.2 Characteristic shear capacity 5.3 Characteristic bearing capacity .6 5.4 Characteristic bending capacity 12 5.5 Characteristic bending stiffness and creep.... 14 5.6 Web openings and other considerations. 15 5.7 Flangetensiontests..... 15 5.8 Endjointtensiontests 16 Annex A (informative) Analytical method for I-beam bending capacities, 17 Annex B (informative) Failure coding in tests of prefabricated wood-based I-beams .. 20 Bibliography.. 23 Copyright International Organization for Standardizalon ghts reserved ii nse from IHS Not for Resale ISO 22389-1:2010(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member 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 non-governmental, in liaison with isO, also take part in the work. sO collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3 Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies castingavote. Attention 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. ISQ 22389-1 was prepared by Technical Committee ISO/TC165, Timber structures. I-beams: Part 1:Testing, evaluation and characterization This part of ISO 22389 is based, with permission of AsTM International, on AsTM D 5055, Standard ASTM International. ational Organizationfor Standardization @ ISO 2010 - All rights reserved