先张法预应力混凝土空心板裂缝的产生及预控

The appearance of surface crack in pre-tensioned pre-stressed concrete hollow slab and its preventive measures

结合工程实践,介绍了普通先张法预应力混凝土空心板的技术参数,分析了先张法预应力混凝土空心板表面裂缝产生的原因,提出了裂缝的预防措施,以确保空心板的预制质量。

Combined with practical engineering, the author introduces technical parameters of common pre-tensioned pre-stressed concrete hollow slab, analyzes the cause.~ of the appearance of surface crack in the slab, and proposes preventive measures, in order to ensure the quality of prefabricated hollow slab.