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Smart FBG-based steel tie rod with self-monitoring functionality

  • He Jianping*
  • , Zhou Zhi
  • , Chen Genda
  • , Ou Jinping
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Currently, it is difficult to measure the internal forces of steel tie rods under construction and in long-term service. A novel high-durable smart steel tie rod with functionality of self-monitoring was developed by utilizing fiber Bragg grating (FBG) and installation techniques combined with glass fiber reinforced polymer (GFRP). The sensing features for the smart steel tie rod were investigated. The strain obtained from FBG strain sensors shows very good linearity and repeatability when the steel tie rod is under 85% of its ultimate load. The force calculated from the strain data obtained during the control loading supports those findings, within a 4% error. This type of smart steel tie rod easily reveals any stage of stress and can be regarded as a potential strain-based load cell for adjacent structures in a harsh environment.

Original languageEnglish
Title of host publicationSmart Sensor Phenomena, Technology, Networks, and Systems 2009
DOIs
StatePublished - 2009
Externally publishedYes
EventSmart Sensor Phenomena, Technology, Networks, and Systems 2009 - San Diego, CA, United States
Duration: 9 Mar 200911 Mar 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7293
ISSN (Print)0277-786X

Conference

ConferenceSmart Sensor Phenomena, Technology, Networks, and Systems 2009
Country/TerritoryUnited States
CitySan Diego, CA
Period9/03/0911/03/09

Keywords

  • Absolute measurement
  • Glass fiber reinforced polymer
  • High durability
  • Optical fiber Bragg grating
  • Steel tie rod

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