三腹板预应力混凝土连续箱梁底板纵向裂缝病害原因分析及对策

Cause Analysis and Countermeasures for Longitudinal Cracks in Bottom Slab of Prestressed Concrete Continuous Box Girder with Triple Webs

介绍了某运河大桥三腹板预应力混凝土连续箱梁底板纵向裂缝的病害情况,对该病害产生的原因进行了分析,并对该类型桥梁的设计及施工提出了改善建议。

The situations of longitudinal cracks in the bottom slab of prestressed concrete continuous box girder with triple webs of a canal bridge are described. The causes leading to the cracks are analyzed, and corresponding improvements for the design and construction of the type of the bridge are proposed as well.