Notice – Fire resistance of unprotected concrete filled hollow steel columns
The fire design of steel-concrete composite columns using concrete filled tubes to EN 1994-1-2:2005+A1:2014 (Eurocode 4) is seemingly a simple task, assuming that the temperature distribution of the cross-section is conservatively known. Reading the rules in the section that deals with the structural behaviour and evaluation of the resistance to axial compression, one gets the…