A Method To Predict the Fire Resistance of Circular Concrete Filled Hollow Steel Columns

Abstract

Experimental and theoretical studies have been carried out at the National Research Council of Canada to develop methods to predict the fire resistance of concrete filled hollow steel columns. A mathematical model that calculates temperatures, deformations and strength of columns in fire, and their fire resistance, is described in this paper. A comparison of results calculated using this model with the results of tests conducted on circular steel columns filled with non-reinforced concrete is discussed.