Fire performance of concrete-filled hollow steel columns

Results from experimental and theoretical studies indicate that fire resistance, in the practical region, can be obtained for hollow structural steel columns filled with three types of concrete-filling: plain concrete, bar-reinforced concrete and steel fibre-reinforced concrete. Case studies illustrating the use of concrete-filling, as a means of providing fire protection, to hollow steel columns are presented for the Museum of Flight in Seattle, Washington, and a school building in Hamilton, Ontario.