混凝土裂缝检测与监测技术研究进展

Research Progress of Concrete Crack Detection and Monitoring Technology

混凝土裂缝检测与监测是结构健康监测的重要内容之一,对混凝土结构损伤评估、后期养护管理具有重要的参考价值。为此,对混凝土裂缝诊断技术研究进展进行综述,分析总结几种传统检测方法原理并对其检测特点进行对比。其次介绍了一些新兴的监测技术,基于长标距光纤光栅监测范围达到米级别但成本达导电涂料2倍,柔性导电涂料传感元件生产施工存在缺少相关标准执行文件问题,而基于图像裂缝识技术最大干扰在于图像复杂背景的噪音。

Concrete crack detection and monitoring are one of the important contents of structural health monitoring,which has important reference value for damage assessment and maintenance management of concrete structures.And the research progress of concrete crack diagnosis technology is summarized,the principles of several traditional detection methods are analyzed and their detection characteristics are compared.Secondly,some emerging monitoring technologies are introduced.Based on the long distance fiber Bragg grating,the monitoring range is up to meter level,but the cost is twice as high as that of conductive coating.The production and construction of flexible conductive coating sensor components is lack of relevant standard execution documents,and the biggest interference from image crack detection technology lies in the noise of complex image background.