薄壁式桥台竖向裂缝成因分析及对策

Cause Analysis and Countermeasures of Vertical Crack in Thin Wall Bridge Abutment

通过对薄壁式桥台出现的竖向裂缝特征进行分析总结,并结合当地的气候环境、桥梁特征等因素展开研究,排除了裂缝产生的多种可能性,最终得出结论:薄壁式桥台普遍产生竖向裂缝的现象是由浇筑桥面时混凝土水化热没有得到有效的处理所导致。针对此提出解决方案,可抑制竖向裂缝的产生。

The characteristics of vertical crack in thin wall bridge abutment are analyzed.Studies are carried out combined with factors like local climatic environment and bridge characteristics to rule out the multiple possibilities of cracks.It is ultimately concluded that the reason resulting in vertical crack in thin wall bridge abutment is the uneffective treatment of concrete hydration heat when it was poured.The solutions are put forward for this to control vertical crack.