Analysis of pile load transfer using optical fiber sensor

Jeong Ho Oh, Won Jae Lee, Sang Bae Lee, Woojin Lee

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)

Abstract

Distribution of axial strain in model piles was measured by Fiber Bragg Grating (FBG) sensor to investigate a possibility of measuring and analyzing the load transfer mechanism of pile foundation by Fiber Optic Sensor (FOS) system. Since FBG of different wave lengths can be multiplexed in an optical fiber, the installation of sensor system and the measurement of strains are relatively simple compared with the system consisted of strain gages. In this study, FBG sensors and electric strain gages were embedded in the piles and the distributions of load transfer measured by two sensor systems were compared. It was observed from the test results that the magnitudes of axial load measured by both systems showed insignificant difference and that the distributions of axial load by FBG were smoother than those by strain gage. Under the environments of laboratory testing, survival rate of embedded FBG system was higher than that of strain gage. Therefore, it was concluded that the use of FBG sensor has a great potential for the measurement of pile load transfer with accuracy.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages349-358
Number of pages10
Volume3988
Publication statusPublished - 2000
EventSmart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways - Newport Beach, CA, USA
Duration: 2000 Mar 62000 Mar 7

Other

OtherSmart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways
CityNewport Beach, CA, USA
Period00/3/600/3/7

Fingerprint

Fiber optic sensors
Fiber Bragg gratings
piles
Bragg gratings
Piles
Loads (forces)
optical fibers
strain gages
Strain gages
fibers
sensors
Sensors
axial loads
Axial loads
pile foundations
Pile foundations
axial strain
installing
Optical fibers
fiber optics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Oh, J. H., Lee, W. J., Lee, S. B., & Lee, W. (2000). Analysis of pile load transfer using optical fiber sensor. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3988, pp. 349-358). Society of Photo-Optical Instrumentation Engineers.

Analysis of pile load transfer using optical fiber sensor. / Oh, Jeong Ho; Lee, Won Jae; Lee, Sang Bae; Lee, Woojin.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3988 Society of Photo-Optical Instrumentation Engineers, 2000. p. 349-358.

Research output: Chapter in Book/Report/Conference proceedingChapter

Oh, JH, Lee, WJ, Lee, SB & Lee, W 2000, Analysis of pile load transfer using optical fiber sensor. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3988, Society of Photo-Optical Instrumentation Engineers, pp. 349-358, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, Newport Beach, CA, USA, 00/3/6.
Oh JH, Lee WJ, Lee SB, Lee W. Analysis of pile load transfer using optical fiber sensor. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3988. Society of Photo-Optical Instrumentation Engineers. 2000. p. 349-358
Oh, Jeong Ho ; Lee, Won Jae ; Lee, Sang Bae ; Lee, Woojin. / Analysis of pile load transfer using optical fiber sensor. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3988 Society of Photo-Optical Instrumentation Engineers, 2000. pp. 349-358
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