预应力装配楼板顺板裂缝机理模型研究

Reseach on mechanism model of cracking along the prestressed assembling concrete slab

装配楼板顺板裂缝是预制装配式楼板结构特别是住宅工程中普遍存在的通病 ,通过分析研究楼板之间协同工作及变形 ,建立了楼板之间的混凝土铰接模型 ,探讨了顺板裂缝机理 ,提出解决顺板裂缝的建议方法。

Cracking along the prestressed concrete slab is a common problem in pre assembly floor construction, especially in residential strucure. Through the analysing and reseaching of conformed working and distortion between slabs, A model of the slab joined each other with concrete pin was established. Also, A rational method solving the cracking along prestressed slab was suggested by means of discussing the cracking mechanism.