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Sensors 2016, 16(12), 2149; doi:10.3390/s16122149

Tapered Polymer Fiber Sensors for Reinforced Concrete Beam Vibration Detection

1
School of Human Settlements and Civil Engineering, Xi’an JiaoTong University, Xi’an 710049, China
2
Department of Civil Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
3
Director of Trenchless Technology Center (TTC), Louisiana Tech University, 599 Dan Reneau Dr., Engineering Annex, Ruston, LA 71272, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Manuel Lopez-Amo, Jose Miguel Lopez-Higuera and Jose Luis Santos
Received: 6 September 2016 / Revised: 22 November 2016 / Accepted: 23 November 2016 / Published: 16 December 2016
(This article belongs to the Special Issue Optical Fiber Sensors 2016)
View Full-Text   |   Download PDF [4749 KB, uploaded 16 December 2016]   |  

Abstract

In this study, tapered polymer fiber sensors (TPFSs) have been employed to detect the vibration of a reinforced concrete beam (RC beam). The sensing principle was based on transmission modes theory. The natural frequency of an RC beam was theoretically analyzed. Experiments were carried out with sensors mounted on the surface or embedded in the RC beam. Vibration detection results agreed well with Kistler accelerometers. The experimental results found that both the accelerometer and TPFS detected the natural frequency function of a vibrated RC beam well. The mode shapes of the RC beam were also found by using the TPFSs. The proposed vibration detection method provides a cost-comparable solution for a structural health monitoring (SHM) system in civil engineering. View Full-Text
Keywords: tapered polymer fiber sensor; accelerometers; vibration; natural frequency function; mode shape; concrete beam tapered polymer fiber sensor; accelerometers; vibration; natural frequency function; mode shape; concrete beam
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Luo, D.; Ibrahim, Z.; Ma, J.; Ismail, Z.; Iseley, D.T. Tapered Polymer Fiber Sensors for Reinforced Concrete Beam Vibration Detection. Sensors 2016, 16, 2149.

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