Combined with the construction experience,the paper analyzed the cause of blow-up cracks for post-tensioned concrete beam slab,and proposed relative treatment measures for reference.

• 结合相关工程的经验,对在严寒地区已交付使用或正在施工过程中的后张法预应力混凝土梁板产生的纵向冻胀裂缝的原因进行分析,提出预防和处治措施,供有关设计和施工单位参考。