实体式混凝土桥墩裂缝成因分析及加固方法研究

Research on Structural Analysis Method of Solid Concrete Pier Strengthening

针对实体式混凝土桥墩开裂现象,采用有限元方法与撑杆-系杆理论分析裂缝成因。分析结果表明,开裂是由于设计方法不当,钢筋配置数量不足所致。本文还进一步讨论了桥墩的加固方法,建议采用体外预应力加固方案。

The article using finite - element method combines strut - tie theory analyzed the reason of solid pier crack. Analysis results show due to improper design method and short of steel bars induced cracks. Under discussion of pier strengthening measures external prestressed strengthening technique is adopted.