混合结构现浇混凝土楼板45°斜裂缝控制研究

Research on controlling 45° oblique cracks of cast-in-situ concret floor-slab of masonry buildings

针对目前混合结构房屋现浇混凝土楼板中大量出现的45°斜裂缝进行了理论分析和有限元分析,证实了斜裂缝分布在45°区域的主要原因除了温差之外,还有混凝土的收缩,并提出有效的控制建议.

Through theoretic and finite clement analyses on 45 degree oblique cracks of cast-in-situ floor-slab of masonry buildings, we were convinced that the main factors of oblique cracks situated in 45 degree location are temperature difference and concrete shrinkage also. Furthermore, some effective suggestions are put farward.