Abstract

In this study, a self-sensing smart structure was developed with a novel approach. Electromagnetic wave based self-sensing structure designed by sending waves to the reinforced concrete structure through the reinforcement by using a coaxial cable. EM measurements were based on estimating the reflected EM waves through the reinforced concrete. Correlations between reflected EM wave, damage in reinforced concrete and strength development in concrete was estimated. According to test results, it was seen that with increasing crack width of reinforced concrete by applying monotonic load, reflection of EM wave through the reinforced concrete decreased. It was also seen that with strength development of the concrete, reflection of EM through the reinforced concrete increased. In the light of the findings of this study it can be said that, damage assessment and monitoring strength development of the reinforced concrete is possible in real time with applying the proposed novel technique.

摘要

在这项研究中，采用一种新颖的方法开发了一种自感应智能结构。基于电磁波的自感应结构，利用同轴电缆通过钢筋向钢筋混凝土结构发送波。EM 测量基于估计通过钢筋混凝土反射的 EM 波。估计了反射电磁波、钢筋混凝土损伤和混凝土强度发展之间的相关性。根据测试结果可以看出，随着施加单调荷载的钢筋混凝土裂缝宽度的增加，通过钢筋混凝土的电磁波反射减少。还可以看出，随着混凝土强度的发展，通过钢筋混凝土的电磁反射增加。根据这项研究的结果，可以说，