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受弯构件开裂后的结构性能研究
受弯构件开裂后的结构性能研究
李翀、凡俊、张建勇
（北京市建设工程质量第一检测所有限责任公司，北京100039）
[摘要] 很多混凝土结构在建设和使用过程中会出现不同程度、不同形式的裂缝，这是一个相当普遍的现象，而板、梁等受弯构件出现裂缝的情况更为突出。通过对裂缝出现的原因分析可知大部分均为非受力裂缝，那么裂缝的出现对于构件的结构性能造成的影响程度是本文的主要研究内容。本文将例举多个实验数据，并通过对结果的分析，得出大部分裂缝对受弯构件的结构性能不会造成较大影响的实验结论。
[关键词]受弯构件；结构性能；裂缝影响
Research on the structural performance of the flexural member with cracks
Li Chong，Fan Jun，Zhang Jian Yong
(Beijing Building Construction Research Institute,Beijing100039,China)
Abstract:It is a very common phenomenon that concrete structures cracks in different forms during construction and usages, especially cracks in plate and beam. After analyzing the cause of the cracks, it’s well known that most of them are non-stress fracture, but how serious influences of the cracks to a building structure are still questions in infrastructure testing domain.By analyzing various experimental data and real test results, this article concludes that most of the cracks would not result in a fetal influence on building structure.
Keywords: the flexural member ;the structural performance;the influence of cracks
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