Abstract

In this paper, the development of a fundamentally new, topology-based cable sensor design concept is summarized for crack detection in reinforced concrete (RC) structures. The sensitivity, spatial resolution, and signal loss of sensors are investigated both numerically and experimentally. Two sensors were fabricated and validated with small- and large-scale laboratory tests under different loads. Both were proven sensitive to crack of various sizes from visually undetectable to excessive, giving the location and severity of damage simultaneously. One sensor has been installed on a three-span bridge for its long-term monitoring. It is capable of recording damage that has occurred during a recent event.

Meeting Name

Review of Progress in Quantitative Nondestructive (2005: Jul. 31-Aug. 5, Brunswick, ME)

Department(s)

Civil, Architectural and Environmental Engineering

Second Department

Electrical and Computer Engineering

Keywords and Phrases

Coaxial Cable; Concrete Structure; Crack Detection; Distributed Sensor; TDR Measurements

International Standard Book Number (ISBN)

0735403120; 9780735403123

International Standard Serial Number (ISSN)

0094-243X

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2006 American Institute of Physics (AIP), All rights reserved.

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