Concrete at high temperature with application to tunnel fire

B. A. Schrefler, P. Brunello, D. Gawin, C. E. Majorana, F. Pesavento

Research output: Contribution to journalArticle

73 Scopus citations

Abstract

In this paper a new procedure for structural assessment of tunnel constructions during fire is presented. In particular, it consists of two steps: the first one deals with a realistic evaluation of thermal fluxes, both convective and radiative, for the whole tunnel. In the fires recently occurred in some European tunnels, the duration of the fire was longer than expected and the produced temperature fields were much more severe than those considered in standard codes. Therefore, such a kind of evaluation is of great importance. As second step, a simulation of the hygro-thermo-mechanical behaviour of concrete structure will be carried out using thermal fluxes previously calculated as thermal input for a fully coupled code, which considers concrete as a multiphase porous material.

Original languageEnglish (US)
Pages (from-to)43-51
Number of pages9
JournalComputational Mechanics
Volume29
Issue number1
DOIs
StatePublished - Jan 1 2002

Keywords

  • Concrete
  • FE simulation
  • Heat exchange
  • High temperature
  • Hygro-thermo-mechanical modelling
  • Tunnel fire

ASJC Scopus subject areas

  • Mechanics of Materials
  • Computational Mechanics
  • Applied Mathematics
  • Safety, Risk, Reliability and Quality

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