An application of fiber bragg grating sensor to piles

Woojin Lee, Wonje Lee, Rodrigo Salgado

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


In order to evaluate the applicability of an optical-fiber sensor system in the instrumentation of piles, laboratory and field tests were conducted. A multiplexed sensor system, constructed by arranging several Fiber-Bragg-Grating (FBG) sensors along a single optical fiber line, is capable of measuring local axial strains as a function of wavelength shifts. From the strains measured by FBG sensors, the distributions of axial load in three model piles and a field test pile are found to be comparable, in terms of both magnitude and trend, to those obtained from conventional strain gauges. The result of an application suggests that the FBG sensor system is an effective tool for the analysis of the axial load transfer in piles. Copyright ASCE 2006.

Original languageEnglish
Title of host publicationGeoCongress 2006
Subtitle of host publicationGeotechnical Engineering in the Information Technology Age
Number of pages1
Publication statusPublished - 2006
EventGeoCongress 2006 - Atlanta, GA, United States
Duration: 2006 Feb 262006 Mar 1

Publication series

NameGeoCongress 2006: Geotechnical Engineering in the Information Technology Age


OtherGeoCongress 2006
Country/TerritoryUnited States
CityAtlanta, GA

ASJC Scopus subject areas

  • General Engineering


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