既有建筑安全鉴定中混凝土构件的裂缝分析  

Crack analysis of concrete components in existing buildings safety appraisal

作　　者：刘剑[1] 谭海亮 郭旭 刘立渠 LIU Jian;TAN Hailiang;GUO Xu;LIU Liqu(Beijing University of Technology,Beijing 100124,China;China Academy of Building Research,Beijing 100013,China)

机构地区：[1]北京工业大学,北京100124 [2]中国建筑科学研究院有限公司,北京100013

出　　处：《混凝土》2020年第8期135-137,142,共4页Concrete

摘　　要：裂缝是混凝土结构不可避免的,非受力细微裂缝对结构的使用无大的危害,但受力裂缝影响结构的承载能力,或间接裂缝影响结构的耐久性。结合某混凝土结构的安全鉴定实例对典型裂缝的性质、影响、成因进行了分析,并给出了现场裂缝检测的分析思路,并提出根据不同裂缝成因的相应处理方法,为保证建筑物的安全性、耐久性提供帮助。Cracks are unavoidable in concrete structures.Non-stressed micro-cracks do not do great harm to the safety of structures,but stress cracks affect the bearing capacity of structures,or indirect cracks affect the durability of structures.The characteristics,effects and causes of typical cracks are analyzed with an example of safety appraisal of a concrete structure,and the analysis ideas of crack detection in situ are given,and the corresponding treatment methods according to different causes of cracks are put forward to help ensure the safety and durability of buildings.

关 键 词：混凝土结构 受力裂缝 间接裂缝 

分 类 号：TU528.7[建筑科学—建筑技术科学]