(1 甘肃土木工程科学研究院，兰州 730020； 2 甘肃省建筑设计研究院，兰州 730000；3 甘肃省建设科技专家委员会，兰州 730000)

［摘要］结合实际工程，针对某大跨度预埋竹芯盒现浇密肋空心楼盖出现的裂缝，通过现状调查与检测，结构承载力验算，结合楼盖的受力特点，从设计、施工等方面对现浇楼盖产生裂缝的原因进行了综合分析，并提出了具体意见与建议，以便引起设计、施工人员的重视，避免类似事故发生。

［关键词］现浇密肋空心楼盖；受力裂缝；裂缝检测；竹芯盒

Analysis on crack of cast-in-place dense rib hollow ceiling of a concrete frame

Zheng Jianjun¹, Wang Dajun², Li Derong³(1 Gansu Civil Engineering Research Institute, Lanzhou 730020, China; 2 Institute of Gansu Architectural Design and Research, Lanzhou 730000, China; 3 Gansu Constructional Experts Commission, Lanzhou 730000, China)

Abstract:According to an actual project, the cracks of a large span cast-in-place dense rib hollow ceiling embedded bamboo core box were analyzed synthetically from the design and construction aspects, through the present situation investigation and detection, checking of bearing capacity, and the stress characteristics. Some detailed suggestions are given to the engineers to avoid the similar accident.

Keywords:cast-in-place dense rib hollow ceiling; stress crack; crack detection; bamboo core box

作者简介：郑建军，高级工程师，Email: zjj-555@163.com。

参考文献

［1］CECS175:2004现浇混凝土空心楼板楼盖结构