Title

Novel Cable Sensors for Crack Detection of Reinforced Concrete Structures

Abstract

In this paper, the development and validation 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 has a unique memory feature, capable of recording damage that has occurred during a recent event.

Meeting Name

NDE/NDT for Highway and Bridges: Structural Materials Technology (2004: Sep. 14-17, Buffalo, NY)

Department(s)

Civil, Architectural and Environmental Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2004 American Society for Nondestructive Testing, Inc., All rights reserved.

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