Wideband subsurface radar for bridge structural health monitoring and nondestructive evaluation

Tzuyang Yu; Che-Fu Su; Chieh-Ping Lai; H. Felix Wu

doi:10.1117/12.2010120

16 April 2013 Wideband subsurface radar for bridge structural health monitoring and nondestructive evaluation

Tzuyang Yu, Che-Fu Su, Chieh-Ping Lai, H. Felix Wu

Proceedings Volume 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013; 86940I (2013) https://doi.org/10.1117/12.2010120
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

The nondestructive evaluation (NDE) inspection for building and bridge structures has attracted a lot of attentions for the fundamental research and the sensor system development. In this paper, development of a distant subsurface imaging radar is reported. Theoretical background of subsurface radar imaging is first provided. Experimental laboratory measurements using radar signals in the frequency range of 1-18 GHz were conducted. From the theoretical analysis and the initial experimental results on a laboratory reinforced concrete specimens, it is proved that the proposed subsurface imaging radar system can detect the location of steel reinforcement inside a concrete cylinder and identify the material property of panel specimens. Range-dependent attenuation of radar signals is experimentally studied using different materials. Findings are reported in the summary.

Citation Download Citation

Tzuyang Yu, Che-Fu Su, Chieh-Ping Lai, and H. Felix Wu "Wideband subsurface radar for bridge structural health monitoring and nondestructive evaluation", Proc. SPIE 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013, 86940I (16 April 2013); https://doi.org/10.1117/12.2010120

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