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Balanced summation model for the calculation of the buckling resistance of partially encased columns under fire: new improvements

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Resumo:The fire resistance of partially encased columns (HEB and IPE) depends on the temperature evolution under fire. This paper aims to assess de effect of the balanced summation model into the design of the axial buckling load of partially encased columns under fire, according to EN 1994-1-2. New improvements will be proposed to evaluate the fire resistance, based on new simple formulas to determine the flange temperature, the residual height and temperature of the web, the residual cross section and temperature of concrete, the reduced stiffness and strength of reinforcement. The new proposal is based on the validation of a numerical simulation using ANSYS.
Autores principais:Calió, Leonardo Jorge
Outros Autores:Piloto, P.A.G.; Rigobello, Ronaldo
Ano:2017
País:Portugal
Tipo de documento:comunicação em conferência
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB

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