摘要
对连续刚构桥底板预应力筋进行受力分析,从设计、施工两大方面探究了连续刚构桥箱梁底板裂缝的发生原因。同时根据裂缝不同的形成原因,分别给出了对应的预防手段,主要包括优化设计、材料选择、严格控制施工质量等。
The present study investigated the damage causes of box girder bottom plate crack, performed force analysis on the bottom plate prestressing tendon of continuous rigid frame bridge, and analyzed the causes of box girder bottom plate crack in continuous rigid frame bridge from the perspectives of design and construction. Meanwhile, acc - ording to different causes of crack form -ation, the present study provided corresponding preve - ntion measures, mainly including design optimization, material selection, strict control of construction qua - lity, etc.
关键词
连续刚构桥
底板裂缝
预应力筋
防范
continuous rigid frame bridge
crack floor
tendon prestressing
guard against
