This　paper　describes　a　series　of　new　compression　and　bending　tests　carried　out　on　concrete　filled　steel　tubes　(CFST)　after　exposure　to　the　ISO-834　standard　fire.　Previously　developed　theoretical　models　are　used　to　predict　the　post-fire　load　versus　deformation　relationships　of　CFST　stub　columns　and　beams.　The　predicted　curves　of　load　versus　deformation　are　in　good　agreement　with　the　new　test　results.　The　previously　developed　formulas　are　used　to　calculate　the　composite　section　residual　ultimate　strength　under　axial　compression　or　flexural　bending　and　the　composite　section　residual　flexural　stiffness.　In　these　formulas,　the　ambient　temperature　compression　resistance,　bending　moment　capacity　and　initial　flexural　stiffness　of　the　composite　section　should　be　calculated　using　an　existing　design　code.　In　this　paper,　these　formulas　are　applied　to　the　new　test　data　to　assess　the　suitability　of　using　one　of　the　following　design　codes:　AIJ-1997,　ATSC-LRFD-1999,　BS5400-1979,　DBJ13-51-2003　and　EC4-1994.