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Article
Distributed Cable Sensors for Structural Damage Detection: Implementation Issues
Proceedings of the 2006 Structures Congress
  • Zachary Royer
  • Genda Chen, Missouri University of Science and Technology
  • David C. Van Aken, Missouri University of Science and Technology
  • David Pommerenke, Missouri University of Science and Technology
  • Michael A. Brower
Abstract

A new concept for the design of coaxial cables was recently proposed and developed by the research team by introducing the change in topology of the cable structure when the cable is subjected to strain effects. In this study, three implementation issues are discussed to further advance the emerging technology towards its commercialization and implementation for crack monitoring and detection of reinforced concrete (RC) structures. They include plasma sprayed coating of a coaxial cable sensor, correlation between the reflection coefficient and the width of a crack, and interference of steel reinforcing bars with the electromagnetic field used for time-domain reflectometry measurements. Test results have shown that the sprayed coating can significantly enhance the uniformity of coaxial cable sensors and thus the quality of measured data. With controlled cracking tests, the peak reflection coefficient was found linearly related to the width of a crack. Furthermore, the interference by the adjacent steel bars is negligible even when a coaxial sensor is nearly in contact with a reinforcing bar.

Department(s)
Civil, Architectural and Environmental Engineering
Second Department
Electrical and Computer Engineering
Third Department
Materials Science and Engineering
Keywords and Phrases
  • Structural Safety
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2006 American Society of Civil Engineers (ASCE), All rights reserved.
Publication Date
1-1-2006
Citation Information
Zachary Royer, Genda Chen, David C. Van Aken, David Pommerenke, et al.. "Distributed Cable Sensors for Structural Damage Detection: Implementation Issues" Proceedings of the 2006 Structures Congress (2006)
Available at: http://works.bepress.com/david-pommerenke/80/