Fire resistance of reinforced concrete columns: A systematic review

Abstract

There is wide variation in the determination of the fire resistance of Reinforced Concrete (RC) Columns experimentally throughout the world. The design criteria’s for determining the fire resistance are either too conservative or too unsafe for RC Columns due to the complexity in the nature of failure being dictated mostly by fire induced spalling. The theoretical methods of determining fire resistance are based on reduced cross-sections or extended analytical determinations but these are not in coherence with the experimental results. This review studies the equivalence of fire resistance of RC Columns from various analytical methods with the experimental results. The experimental results for determining fire resistance are co-related with each other to determine the deviation from general results. The reasons for variation in experimental results and indications for modification in theoretical methods are finally discussed. © 2018 Taylor & Francis Group, London.