某公路桥病害分析及加固技术

Disease Analysis and Reinforcement of Some Highway Bridge

依据某南疆公路桥梁检测数据,对其病害特征进行了归纳和总结,分析其病害产生原因,从设计、施工、使用3方面提出影响桥梁健康的因素。根据不同病害特征,评定其健康状况,给出评定等级,并提出相应的维修加固处理措施,重点介绍了主梁腹板加固方法和体外预应力加固技术。该桥梁加固工程验证了加固方法的有效性和可行性。

Based on the test data of some highway bridge in South Xinjiang, disease problem is generalized, and the reason is analyzed in this paper. The factor that effects the bridge health is provided from the design, construction and application. According to different diseases, the health state is evaluated, and evaluation grade is given, then the corresponding maintenance and reinforcement method are provided, at last, the main girder reinforcement method and the external prestressing technique are introduced. The bridge maintenance project verifies the effectivity and feasibility of the method.