Assess of residual mechanical resistance of reinforced concrete beams after fire

Abstract This paper presents an experimental program to determine the residual strength of simple supported reinforced concrete beams subject to bending after fire. Also presented is a three-dimensional, nonlinear finite element model capable of predicting the thermal and mechanical (residual) behavior of this type of structural element. The experimental results obtained with beams under up to 120 min. of fire exposure show that it did not have significant reduction in their residual resistance. The numerical model was accurate in predicting temperatures and residual strength when compared to the experimental results.

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Bibliographic Details
Main Authors: Pereira,R. G., Pires,T. A. C., Duarte,D., Silva,J. J. Rêgo
Format: Digital revista
Language:English
Published: Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción A.C. 2019
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S2007-68352019000100093
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