TY - GEN
T1 - Computer model for predicting the fire response of reinforced concrete columns
AU - Raut, Nikhil
AU - Kodur, Venkatesh
PY - 2011
Y1 - 2011
N2 - A macroscopic finite element model for tracing the fire response of reinforced concrete (RC) columns is presented. The model accounts for critical factors such as fire induced spalling, various strain components, high temperature material properties, restraint effects, different fire scenarios and failure criteria, in evaluating fire resistance of RC columns. The validity of the model is established by comparing the predictions from the computer program with results from full-scale fire resistance tests. Parametric studies are performed to study the sensitivity of model predictions to different discrtization and meshing parameters and based on the results an optimum mesh size and time increment for fire resistance analysis of RC columns is recommended. Through case studies it is shown that macroscopic finite element models are capable of predicting the fire response of RC columns over a wide range of parameters as encountered in practical situations.
AB - A macroscopic finite element model for tracing the fire response of reinforced concrete (RC) columns is presented. The model accounts for critical factors such as fire induced spalling, various strain components, high temperature material properties, restraint effects, different fire scenarios and failure criteria, in evaluating fire resistance of RC columns. The validity of the model is established by comparing the predictions from the computer program with results from full-scale fire resistance tests. Parametric studies are performed to study the sensitivity of model predictions to different discrtization and meshing parameters and based on the results an optimum mesh size and time increment for fire resistance analysis of RC columns is recommended. Through case studies it is shown that macroscopic finite element models are capable of predicting the fire response of RC columns over a wide range of parameters as encountered in practical situations.
KW - 1-, 2-, 3-, 4 sided exposure
KW - Biaxial bending
KW - Computer program
KW - Fire resistance
KW - High strength concrete
KW - Numerical model
KW - Reinforced concrete columns
UR - http://www.scopus.com/inward/record.url?scp=84892371497&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84892371497
SN - 9781618392077
T3 - American Concrete Institute, ACI Special Publication
SP - 319
EP - 364
BT - Innovations in Fire Design of Concrete Structures - Papers Presented at the ACI Fall 2008 Convention
T2 - ACI Fall 2008 Convention
Y2 - 2 November 2008 through 6 November 2008
ER -