Calculation of the fire resistance of steel hollow structural section columns filled with plain concrete

Experimental studies were conducted to determine the fire resistance of circular and square hollow structural section columns filled with plain concrete. Mathematical models were developed and used to investigate the influence of important parameters that determine the fire resistance of these columns. The experimental and parametric studies provide information for the development of formulas for the calculation of the fire resistance of circular and square concentrically loaded columns filled with plain carbonate or siliceous aggregate concrete. Such formulas are suitable for incorporation into building codes.On a r\ue9alis\ue9 des \ue9tudes exp\ue9rimentales afin de d\ue9terminer la r\ue9sistance au feu de poteaux structuraux creux, de section circulaire et de section carr\ue9e, remplis de b\ue9ton ordinaire. Des mod\ue8les math\ue9matique ont \ue9t\ue9 mis au point et utilis\ue9s aux fins de l'investigation de l'incidence de param\ue8tres majeurs d\ue9terminant la r\ue9sistance au feu de ces poteaux. Les \ue9tudes exp\ue9rimentales et param\ue9triques g\ue9n\ue8rent de l'information servant \ue0 d\ue9velopper des formules pour le calcul de la tenue au feu des poteaux de sections circulaire et carr\ue9e, remplis de b\ue9ton ordinaire \ue0 granulats siliceux ou carbonat\ue9s, \ue0 charge concentrique. De telles formules conviennent pour fin d'incorporation aux codes de construction.Peer reviewed: YesNRC publication: Ye