ISO/TR TECHNICAL REPORT 24679-2 First edition 2017-07 Fire safety engineering Performance of structure in fire Part 2: Example of an airport terminal Ingenierie de la seécurite incendie - Performance des structures en situation d'incendie - Partie 2: Exemple d'un terminal d'aeroport Reference number ISO/TR24679-2:2017(E) International Organization for Standardization @ IS0 2017 ee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 mitted without license from IHS IS0/TR 24679-2:2017(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 or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZAISQ 3017 - All rights reserved networking permited without license from IHS IS0/TR 24679-2:2017(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. ..1 2 Normative references ..1 3 Terms, definitions and symbols ..1 4 Design strategy for fire safety of structures. ..3 5 Quantification of the performance of structures in fire .3 5.1 Step 1: Scope of the project for fire safety of structures .3 5.1.1 Built environment characteristics. .3 5.1.2 Fuel loads 4 5.1.3 Mechanical actions... ..5 5.2 Step 2: Identify objectives, functional requirements and performance criteria for firesafetyofstructures .6 5.3 Step 3: Trial design plan for fire safety of structures 7 5.4 Step 4: Design fire scenarios and design fires. .9 5.4.1 Design fire scenarios .10 5.4.2 Design fires (thermal actions) ..11 5.5 Step 5: Thermal response of the structure .17 5.5.1 Smoke temperature from FDS simulation .17 5.5.2 Calculating steel temperature exposed to smoke 19 5.6 Step 6: Mechanical response of the structure 20 5.6.1 Deformation analysis of the structure. 21 5.6.2 Strength analysis of the main span under fire exposure 22 5.7 Step 7: Assessment against the fire safety objectives. 26 5.8 Step 8: Documentation of the design for fire safety of structures 27 5.9 Factors and influences to be considered in the quantification process .28 5.9.1 Material properties. .28 5.9.2 Effect of continuity and restraint (interaction between elements and materials) .30 5.9.3 Use of test results. 30 5.9.4 Fire spread routes. .30 6 Guidance on use of engineering methods. .31 Annex A (informative) Views and plans of the airport terminal ..32 Bibliography .34 ii without license from IHS