当城市桥梁发生火灾事故后,如何正确鉴定桥体受损程度并采取适当措施修复,直接关系人民生命财产安全。本文结合火灾事故特征,介绍现行规范的鉴定标准和加固修复技术,并建议在桥梁关键部位采取防火措施,为桥梁建设维护提供参考。 After the city bridge fire accident, how to correctly identify the degree of bridge damage and take appropriate measures to repair, directly related to people’s lives and property safety. Combining with the characteristics of fire accidents, this paper introduces the identification standards of the current norms and the reinforcement and restoration techniques. It also suggests that fire prevention measures should be taken in the key parts of bridges to provide reference for the construction and maintenance of bridges.