论文信息 - Consideration of Transient Creep in the Eurocode Constitutive Model for Concrete in the Fire situation

Consideration of Transient Creep in the Eurocode Constitutive Model for Concrete in the Fire situation

•No distinction between heating under stress and loading at elevated T Simulation with the FE software SAFIR of an axially restrained concrete cylinder heated uniformly to 500°C and then cooled down to 20°C This numerical calculation highlights the importance of considering the actual elastic modulus, i.e. not treating the transient creep strain as reversible The influence of the explicit consideration of transient creep strain is particularly visible during the cooling phase: the strains are mostly permanent so the stresses rapidly decrease when the element is cooled down RESTRAINED ELEMENT SUBMITTED TO HEATING-COOLING SEQUENCE

Jean-Marc Franssen | Thomas Gernay

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