某钢管混凝土拱桥病害分析

Disease Analysis of Concrete-filled Steel Tube Arch Bridge

自1990年四川旺苍东河大桥——中国第一座钢管混凝土拱桥建成以来,该桥型因钢管混凝土复合材料的优越性受到广泛应用,但受制于当时的技术水平,早期建设的该类桥病害较多。本文结合洪州大桥实例进行结构分析,分析病害产生的主要原因,为后续选择加固方案提供依据,也为今后该类拱桥设计提供参考。

Since the construction of wangcangdong river bridge——china’s first steel tube concrete arch bridge in 1990,the bridge type has been widely used because of the superiority of steel tube concrete composite material,but it is restricted by the technical level at that time,and the early construction of this kind of bridge has more diseases.Based on the example of Hongzhou Bridge,this paper analyzes the main causes of the disease,provides the basis for the subsequent selection of reinforcement scheme,and also provides a reference for the future design of this kind of arch bridge.