预应力混凝土连续箱梁伸缩缝损坏及加固技术

Damage of Expansion Joint of Prestressed Concrete Continuous Box Girder and Reinforcement Technology

针对预应力混凝土连续箱梁伸缩缝损坏及加固技术展开了探讨,通过具体的工程实例,系统分析了连续箱梁伸缩缝二次损坏原因,介绍了修复加固的过程,提出了伸缩缝的选型及施工过程质量控制建议,以期能为有关人员提供参考借鉴。

The discussion on the damage of expansion joint of prestressed concrete continuous box girder and reinforcement technology are performed. Through specific engineering project, the reason for secondary damage of expansion joint of continuous box girder is analyzed systematically, the process of repair and reinforcement is introduced, and the model selection of expansion joint and quality control suggestions during the construction are put forward, so as to provide reference for relevant personnel.