Computational Analysis Of Thermo-chemical And Mechanical Behaviour Of Tunnels During Fire

Computational analysis of thermo-chemical and mechanical behaviour of tunnels during fire C.E. Majorana1, F. Pesavento1, P. Brunello2 1Dipartimento di Costruzioni e Trasporti, Universita di Padova, Italy. 2Dipartimento di Costruzione dell 'Architettura, Universita IUAV, Italy Abstract In this p...

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Bibliographic Details
Published in:WIT Transactions on Engineering Sciences 2002-01, Vol.37
Main Authors: Majorana, C E, Pesavento, F, Brunello, P
Format: Article
Language:English
Subjects:
Computation
Computer simulation
Concrete structures
Fluxes
Mechanical properties
Organic chemistry
Porous materials
Tunnel construction
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Summary:Computational analysis of thermo-chemical and mechanical behaviour of tunnels during fire C.E. Majorana1, F. Pesavento1, P. Brunello2 1Dipartimento di Costruzioni e Trasporti, Universita di Padova, Italy. 2Dipartimento di Costruzione dell 'Architettura, Universita IUAV, Italy Abstract In this paper a new procedure for structural assessment of tunnel construction 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 the 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.
ISSN:1746-4471
1743-3533
DOI:10.2495/DM020361