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结构健康监测领域中损伤全历程信息捕捉一直未得到较好的解决,常常出现为兼顾结构大变形监测而导致微小、早期损伤不被识别的现象。为此,从集成角度,利用现有的测试技术,形成多种标距组装测试的方法,在合理的成本范围内实现结构整体变形和局部损伤高精度的全历程监测。具体内容为:利用不同标距长度的感知元件,如应变片,通过串联或并列方式构建损伤全历程监测的多标距测试探头。在方法及结构损伤的全历程特征陈述基础上,采用不同标距应变片对标准混凝土立方体试块的轴向受压变形进行了测试,实验结果说明了该方法能较好地实现结构损伤全历程信息的监测。
In the field of structural health monitoring, the trapping of trauma information throughout the history has not been well solved, and it is often found that minor and early traumatic injuries are not recognized due to the structural deformation monitoring. Therefore, from the integrated point of view, the existing test technology is used to form a variety of gauge assembly and testing methods to achieve high-precision whole-process monitoring of overall structural deformation and local damage within a reasonable cost. The concrete content is as follows: using the sensing elements with different gauge length, such as strain gauges, to build multi-gauge test probes for monitoring full-process monitoring through series or parallel methods. Based on the full-process characterization of the method and structural damage, the axial compression deformation of a standard concrete cube block was tested with different gauge strain gauges. The experimental results show that this method can achieve the full structural damage Information monitoring.