建筑物遭受火灾后,从安全或经济的角度考虑,并不需要全都拆除重建,在经过适当的修复加固之后,多数房屋仍可安全地继续使用。本文综述了火灾的危害及其对建筑结构的影响,探讨了火灾后钢筋混凝土结构的损伤鉴定和修复加固技术,为建筑物火灾后结构的损伤鉴定与修复加固提供参考。 After a building has been subjected to a fire, it is not necessary to demolish and rebuild it from a safety or economic point of view. After proper restoration and reinforcement, most buildings can still be safely used. In this paper, the damage of fire and its influence on building structure are reviewed. The damage identification, repair and reinforcement technology of reinforced concrete structure after fire are discussed. It provides a reference for damage identification and repair and reinforcement of fire structure after fire.