ISO/TR TECHNICAL REPORT 12910 First edition 2010-04-01 Light-frame timber construction - Comparison of four national design documents Construction a ossature légere de bois- Comparaison de quatre documents nationaux pour la conception Reference number ISO/TR 12910:2010(E) @ ISO 2010 IHS unde Not for Resale ISO/TR 12910:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2010 - All rights reserved I without license from IHS Not for Resale ISO/TR 12910:2010(E) Contents Page Foreword Introduction.. .vi 1 Scope.. 2 Document design principles 2.1 2.2 Compliance through pre-engineered solutions . 2.3 Design requirements matched to risk level... 2.4 Relationship to engineering design ...... 2.5 Evolving understanding of ioad-resistance interaction ... 3 Coverage and limitations... 3.1 General. 3.2 Definition of light-frame construction .... 3.3 Prescriptive and performance-based approaches...... 3.4 Integration of national code provisions..... 3.5 Scope of structural design .... 3.6 Beyond structural requirements, such as durability. 4 Loads and load factors .... 4.1 4.2 Basic design framework and philosophy .... 4.3 Load comparisons.... 5 Material specifications.. 5.1 5.2 Product standards.. 5.3 Proprietary wood products... 6 Member design 6.1 General . 6.2 Member vs. system design... 8 6.3 Roofs..... 6.4 Walls 6.5 Floors... .9 Lateral load systems design .. 7.1 .9 7.2 Linking lateral design to analysis models 7.3 Load action assumptions ...... 10 7.4 10 7.5 7.6 Building plan irregularities .... 11 7.7 Wall openings ... 7.8 Elevation irregularities.. 12 8 Connection design 12 8.1 8.2 Fastener schedules. 12 8.3 Proprietary connections 13 9 Other 13 9.1 Miscellaneous.... 9.2 Definitions of terminology .13 Copyrght International OrganizaionforStandardizalonghtsreserved ili se from IHS Not for Resale