FD ISO/TR 15657

FD ISO/TR 15657

August 2013
Published document Current

Fire resistance tests - Guidelines for computational structural fire design

ISO/TR 15657:2013 provides an overview of the advances that have been made in understanding how structures respond to fire. This is reviewed in terms of heat transfer to the structural elements from primarily nominal (furnace) fires changes in the elevated temperature, physical and mechanical characteristics of structural materials, and how the information is used in the analysis of structural elements for the fire limit state. In reviewing the fire scenarios the report concentrates primarily on standardized heating curves but includes the basis of characteristic curves, which may at some time in the future be adopted in a standardized way. Reference is made to time equivalent as a recognized methodology in relating a natural or characteristic fire to an equivalent period of heating in the ISO 834 furnace test.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2013

Number of pages

92 p.

Reference

FD ISO/TR 15657

ICS Codes

13.220.01   Protection against fire in general

Classification index

P92-901

Print number

1 - 23/08/2013

International kinship

ISO/TR 15657:2013
Sumary
Fire resistance tests - Guidelines for computational structural fire design

ISO/TR 15657:2013 provides an overview of the advances that have been made in understanding how structures respond to fire. This is reviewed in terms of heat transfer to the structural elements from primarily nominal (furnace) fires changes in the elevated temperature, physical and mechanical characteristics of structural materials, and how the information is used in the analysis of structural elements for the fire limit state. In reviewing the fire scenarios the report concentrates primarily on standardized heating curves but includes the basis of characteristic curves, which may at some time in the future be adopted in a standardized way. Reference is made to time equivalent as a recognized methodology in relating a natural or characteristic fire to an equivalent period of heating in the ISO 834 furnace test.

Table of contents
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  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Principes fondamentaux
    1
  • 2.1 Principaux objectifs de la conception de la sécurité incendie
    1
  • 2.2 Critères de performances
    2
  • 3 Processus de conception
    5
  • 3.1 Modèle feu
    5
  • 3.2 Modèle de transfert thermique
    6
  • 3.3 Modèle structural
    7
  • 3.4 Modèles combinés
    7
  • 3.5 Propriétés des matériaux
    9
  • 4 Modèles feu
    13
  • 4.1 Feux normalisés (nominaux)
    14
  • 4.2 Feux naturels
    15
  • 4.3 Simulation numérique de feux naturels - Modèles de zones
    18
  • 4.4 Flux de chaleur reçu par la structure
    20
  • 5 Modèles de transferts thermiques pour les calculs des températures
    22
  • 5.1 Température uniforme
    23
  • 5.2 Échauffement non uniforme
    31
  • 5.3 Équivalent temps
    35
  • 6 Calcul des structures
    39
  • 6.1 Propriétés mécaniques
    39
  • 6.2 Propriétés thermophysiques
    56
  • 6.3 Propriétés thermiques des matériaux de protection contre les feux de structures
    74
  • 6.4 Méthodes de calcul du comportement aux feux de structures
    75
  • Annexe A (informative) Codes nationaux d'ingénierie de sécurité incendiepour le calcul de structures
    81
  • Bibliographie
    82
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