This　paper　presents　the　residual　flexural　capacity　of　reinforced　concrete　beams　under　combined　actions　of　corrosion　and　elevated　temperatures.　17　concrete　beams　were　manufactured　and　accelerated　corrosion　tests　were　conducted　to　obtain　corrode　concrete　beams.　After　fire　tests　according　to　ISO　834　standard　fire,　each　specimen　was　subjected　to　a　four-point　bending　test.　The　results　showed　that　corrosion　led　to　premature　failure　of　concrete　beams.　During　fire　tests,　corrosion-induced　cracks　accelerated　heat　transfer　in　the　concrete.　Slight　corrosion　had　little　effect　on　the　yield　and　ultimate　load　of　concrete　beams.　One　hour　fire　exposure　had　little　effect　on　the　load　bearing　capacities　of　slightly　corroded　or　uncorroded　beams.　But　when　the　corrosion　degree　exceeded　0.1,　the　load　bearing　capacities　decreased　by　up　to　31%.　Increasing　the　concrete　cover　thickness　significantly　improved　the　load　bearing　capacity　of　corroded　concrete　beams.　When　the　degree　of　corrosion　of　tension　bars　exceeded　0.069,　energy　dissipation　capacities　decreased　significantly　as　much　as　21%.　The　longer　the　fire　exposure　time　was,　the　greater　the　decrease　in　energy　dissipation.　The　conclusions　obtained　in　this　paper　can　provide　a　theoretical　basis　for　the　evaluation　of　residual　performance　of　corroded　concrete　structures　after　exposure　to　fire.　©　2024　Institution　of　Structural　Engineers