Crack Detection of a Full-Scale Reinforced Concrete Girder with a Distributed Cable Sensor

Author

Genda Chen, Missouri University of Science and TechnologyFollow
Shishuang Sun
David Pommerenke, Missouri University of Science and TechnologyFollow
James L. Drewniak, Missouri University of Science and TechnologyFollow
Gary G. Greene
Ryan D. McDaniel
Abdeldjelil Belarbi, Missouri University of Science and Technology
Huimin Mu

Abstract

A new concept of designing cable sensors for health monitoring of large-scale civil infrastructure has recently been proposed by the present authors. The concept was developed based on the change in topology of the outer conductor of a coaxial cable sensor. One such sensor was fabricated with its outer conductor tightly wrapped with a commercial tin-plated steel spiral that was covered with solder. It was mounted near the surface of a 15 m long reinforced concrete (RC) girder with a 762 mm square hollow cross section and 152 mm thick walls. The girder was tested under a progressively increasing cyclic torsion creating 45° inclined cracks around and along the girder. The main objectives of this study were to implement the distributed cable sensor technology in large-scale reinforced concrete structures, to understand the performance of a sensor under cyclic loading for detecting and locating cracks, and, finally, to address implementation issues such as signal loss, non-uniformity in sensor construction, and recoverability.

Recommended Citation

G. Chen et al., "Crack Detection of a Full-Scale Reinforced Concrete Girder with a Distributed Cable Sensor," Smart Materials and Structures, vol. 14, no. 3, pp. S88 - S97, Institute of Physics - IOP Publishing, Jun 2005.

The definitive version is available at https://doi.org/10.1088/0964-1726/14/3/011

Department(s)

Civil, Architectural and Environmental Engineering

Second Department

Electrical and Computer Engineering

Keywords and Phrases

Beams and Girders; Coaxial Cables; Concrete Construction; Condition Monitoring; Cyclic Loads; Dielectric Materials; Reinforced Concrete; Sensors; Soldering Alloys; Strain; Topology; Crack Detection; Cyclic Torsion; Distributed Cable Sensors; Reinforcement Corrosion; Cracks

International Standard Serial Number (ISSN)

0964-1726

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2005 Institute of Physics - IOP Publishing, All rights reserved.

Publication Date

01 Jun 2005