ISO/TR TECHNICAL REPORT 15656 First edition 2003-12-01 Fire resistance Guidelines for evaluating the predictive capability of calculation models for structural fire behaviour Résistance au feu Lignes directrices pour évaluer I'aptitude des modeles mathématiques a simuler le comportement des feux de structures Reference number ISO/TR 15656:2003(E) ISO @ISO2003 by IHS under lic itted without license from IHS Not for Resale ISO/TR15656:2003(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 trademarkof 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. ISO2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ationalgazaiSandardizato @Iso2003-All rightsreserved Not for Resale ISO/TR15656:2003(E) Contents Page Foreword. iv Introduction 1 Scope. 2 Normative references ... 3 Terms and definitions.. 4 Background information .. 4.1 4.2 Potential users and their needs... 4.3 Predictive model capabilities, uncertainties of design component (from ISO/TR 12471).. 5 Outline of methodology... 6 Definitionanddocumentationof modelandscenario... 6.1 Types of models .... 6.2 Documentation...... 9 6.3 Deterministic versus probabilistic . 10 7 Evaluation ... 7.1 Sources of errors in predictions 10 7.2 Model application and use ... 11 7.3 Model theoretical basis .... 12 7.4 Model solution... 12 7.5 Comparison of model results 14 7.6 Measurement uncertainty of data (from ISO/TR 13387-3) 17 7.7 .Model sensitivity........ 18 Bibliography Copyright International Organizaion for Standardization rights reserved ili Not for Resale ISO/TR 15656:2003(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.Eachmemberbodyinterestedina subjectforwhichatechnical committeehasbeen established has the right to be represented on that committee. International organizations, governmental 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 main task of technical committees is to prepare International Standards. 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 casting a vote. In exceptional circumstances, when a technical committee has collected data of a different kind from that which is normally published as an International Standard ("state of the art", for example), it may decide by a simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely informative in nature and does not have to be reviewed until the data it provides are considered to be no longer valid or useful. Attention is drawn to the possibility that some of the elements of this document may be the subject of pat