Distributed Coaxial Cable Crack Sensors for Crack Mapping in RC
New type of distributed coaxial cable sensors for health monitoring of large-scale civil infrastructure was recently proposed and developed by the authors. This paper shows the results and performance of such sensors mounted on near surface of two flexural beams and a large scale reinforced concrete box girder that was subjected to twenty cycles of combined shear and torsion. The main objectives of this health monitoring study was to correlate the sensor's response to strain in the member, and show that magnitude of the signal's reflection coefficient is related to increases in applied load, repeated cycles, cracking, crack mapping, and yielding. The effect of multiple adjacent cracks, and signal loss was also investigated.
G. G. Greene et al., "Distributed Coaxial Cable Crack Sensors for Crack Mapping in RC," Proceedings of the 2005 SPIE's International Symposium on Smart Structures and Materials, SPIE -- The International Society for Optical Engineering, May 2005.
The definitive version is available at http://dx.doi.org/10.1117/12.600143
2005 SPIE's International Symposium on Smart Structures and Materials
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Flexural Beams; Reinforced Concrete Box Girder; Sensors; Shear; Coaxial cables; Torsion
Article - Conference proceedings
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