Reliability based design of timber in fire

• Unité de recherche: COST
• Numéro de projet: C15.0064
• Titre du projet anglais: Reliability based design of timber in fire

Mots-clé (Anglais)

Timber; fire; resistance; safety; structural reliability; design

Programme de recherche (Anglais)

COST-Action FP1404 - Fire Safe Use of Bio-based building products

Description succincte (Anglais)

For the design of structural timber members at normal temperature according to Eurocode 5 (EN 1995-1-1), 5% fractile values are used for the material properties (e.g. stiffness or strength). For the fire design of structural timber members, Eurocode 5 (EN 1995-1-2) gives conversion factors to enable design with 20% fractile values which reflects the results of traditional fire codes in Europe. However, other materials like concrete still use 5% fractile values in the fire situation. This contradiction has been recognised in the scientific community, however a scientific background to explain the validity of the use of 20% fractile values for the fire design of timber members is lacking. The objective of the project is the detailed analysis of the current approach for the fire design of timber members based on Eurocode 5 and the determination of the required safety factors in case of fire based on reliability analysis. An extensive numerical investigation will be performed for timber members in fire and subjected to different loads. The numerical model will be validated with fire tests. The probabilistic calibration of the safety factors in case of fire will be realised by reviewing the existing knowledge as well as additional experiments in combination with the results of the numerical simulations performed.

Autres indications (Anglais)

Full name of research-institution/enterprise: ETH Zürich Institut für Baustatik und Konstruktion HIL D37.1

Partenaires et organisations internationales (Anglais)

AT; BE; HR; CZ; DK; EE; FI; FR; MK; DE; EL; IE; IT; LV; NL; NO; PL; PT; SK; SI; ES; SE; TR; UK; BG; MN;

Résumé des résultats (Abstract) (Anglais)

See short description

Références bases de données (Anglais)

Swiss Database: COST-DB of the State Secretariat for Education and Research Hallwylstrasse 4 CH-3003 Berne, Switzerland Tel. [phone] Swiss Project-Number: C15.0064