关键词: 桥梁检测, 病害原因, 模型计算, 加固方法

Abstract: Taking the process of the reinforcement and protection of a duplicate arch bridge as an example, it is super-posited by Guojiaolong old arch bridge in Shizhu in Chongqing and one modern arch bridge. Common damages and causes are found through investigating and computer model discussion. The reasons of protection are analyzed and methods of bridge reinforcement are provided.

Key words: detection of bridge, causes of damage, model calculation, methods of reinforcement