Concrete structures subject to high temperature

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A mathematical model to analyse the hygro-thermal behaviour of concrete as a multi-phase porous material at high temperatures, accounting for material deterioration, is presented. Full development of the model equations, starting from the macroscopic balances of mass, energy and linear momentum of the single constituents is presented. Constitutive relationships of concrete at high temperature, including those concerning material damage, are discussed. The classical isotropic non-local damage theory is modified to take into account the mechanical- and the thermo-chemical concrete damage at high temperature. The final form of the governing equations, their discretised FE form, and their numerical solution are presented. The results of a numerical example, concerning fire performance of a 2-D HPC structure, is presented and discussed.

Original languageEnglish
Title of host publicationInternational Conference on Computational Structures Technology - Proceedings
EditorsB.H.V. Topping, Z. Bittnar
Pages63-91
Number of pages29
StatePublished - Dec 1 2001
EventThe Sixth International Conference on Computational Structures Technology (CST 2002) - Prague, Czech Republic
Duration: Sep 4 2002Sep 6 2002

Other

OtherThe Sixth International Conference on Computational Structures Technology (CST 2002)
CountryCzech Republic
CityPrague
Period9/4/029/6/02

Keywords

  • Concrete
  • Heat
  • Mass
  • Mechanical damage
  • Thermo-chemical damage

ASJC Scopus subject areas

  • Chemical Health and Safety
  • Safety, Risk, Reliability and Quality
  • Architecture

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