Crack detection of a full-scale reinforced concrete girder with a distributed cable sensor

G. D. Chen*, S. S. Sun, D. Pommerenke, J. L. Drewniak, G. G. Greene, R. D. McDaniel, A. Belarbi, H. M. Mu

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikel

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.

Originalspracheenglisch
FachzeitschriftSmart Materials and Structures
Jahrgang14
Ausgabenummer3
DOIs
PublikationsstatusVeröffentlicht - 1 Jun 2005
Extern publiziertJa

ASJC Scopus subject areas

  • !!Signal Processing
  • !!Civil and Structural Engineering
  • !!Atomic and Molecular Physics, and Optics
  • !!Materials Science(all)
  • !!Condensed Matter Physics
  • !!Mechanics of Materials
  • !!Electrical and Electronic Engineering

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