大跨度连续刚构桥病害分析及加固研究

Disease Analysis and Reinforcement Study of Long-span Continuous Rigid Frame Bridge

连续刚构桥是预应力混凝土梁式桥的一种较为新颖的桥梁体系,有其独特的结构特征和受力特点,行车平顺,应用广泛。但在使用过程中也发现了梁体裂缝、露筋等缺陷。以乌溪特大桥为例,对其主要病害做了详细分析,并提出相应对策来减小病害的影响。

The continuous rigid frame bridge is a relatively new type of bridge system for prestressed concrete beam bridges.It has its unique structural features and force characteristics,and it has smooth application and wide application.However,defects such as cracks in the beam body and exposed ribs were also found during use.Taking Wuxi Bridge as an example,this paper makes a detailed analysis of its main diseases and proposes corresponding countermeasures to reduce the impact of diseases.