TY - JOUR
T1 - A numerical model for predicting the fire resistance of reinforced concrete beams
AU - Kodur, V. K.R.
AU - Dwaikat, M.
PY - 2008/5
Y1 - 2008/5
N2 - A numerical model, in the form of a computer program, for tracing the behavior of reinforced concrete (RC) beams exposed to fire is presented. The three stages associated with the numerical procedure for evaluating fire resistance of RC beams; namely, fire temperature calculation, thermal analysis and strength analysis, are explained. A simplified approach to account for spalling under fire conditions is incorporated into the model. The use of the computer program for tracing the response of RC beams from the initial pre-loading stage to collapse stage, due to the combined effect of fire and loading, is demonstrated. The validity of the numerical model is established by comparing the predictions from the computer program with results from full-scale fire resistance tests. Through the results of numerical study, it is shown that the type of failure criterion has significant influence on predicting the fire resistance of RC beams.
AB - A numerical model, in the form of a computer program, for tracing the behavior of reinforced concrete (RC) beams exposed to fire is presented. The three stages associated with the numerical procedure for evaluating fire resistance of RC beams; namely, fire temperature calculation, thermal analysis and strength analysis, are explained. A simplified approach to account for spalling under fire conditions is incorporated into the model. The use of the computer program for tracing the response of RC beams from the initial pre-loading stage to collapse stage, due to the combined effect of fire and loading, is demonstrated. The validity of the numerical model is established by comparing the predictions from the computer program with results from full-scale fire resistance tests. Through the results of numerical study, it is shown that the type of failure criterion has significant influence on predicting the fire resistance of RC beams.
KW - Fire resistance
KW - High strength concrete
KW - High temperature
KW - Numerical model
KW - Reinforced concrete beams
KW - Spalling
UR - http://www.scopus.com/inward/record.url?scp=41149145541&partnerID=8YFLogxK
U2 - 10.1016/j.cemconcomp.2007.08.012
DO - 10.1016/j.cemconcomp.2007.08.012
M3 - Article
AN - SCOPUS:41149145541
SN - 0958-9465
VL - 30
SP - 431
EP - 443
JO - Cement and Concrete Composites
JF - Cement and Concrete Composites
IS - 5
ER -