Measurement of cracks in concrete beams using a brillouin optical time domain analysis sensing technology

C. Y. Hong, Jianhua Yin, H. F. Pei, D. Huang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)

Abstract

Brillouin optical time domain analysis (BOTDA) is considered as an effective health monitoring (long distance distributed strain and temperature measurement) technique for different structures such as pavements, buildings and oil pipes. In this paper, the BOTDA sensing technology is used for measuring cracks on small scale concrete beam. It is found from the experimental results that the existence of large tensile cracks in concrete beam can be identified with the BOTDA sensing technology. The measured strain increases faster after the tensile crack occurs at the bottom of the concrete beam. Based on the experimental study, the advantages of the fiber optic BOTDA sensing technology are: (a) the loop installation method is effective for strain measurement, and (b) large tensile cracks in concrete beam can be identified.
Original languageEnglish
Title of host publicationProceedings of the 2nd International Postgraduate Conference on Infrastructure and Environment, IPCIE 2010
Pages22-28
Number of pages7
VolumeSUPPL.
Publication statusPublished - 1 Dec 2010
Event2nd International Postgraduate Conference on Infrastructure and Environment, IPCIE 2010 - Hong Kong, Hong Kong
Duration: 1 Jun 20102 Jun 2010

Conference

Conference2nd International Postgraduate Conference on Infrastructure and Environment, IPCIE 2010
Country/TerritoryHong Kong
CityHong Kong
Period1/06/102/06/10

Keywords

  • BOTDA
  • Large tensile cracks
  • Loop installation method
  • Small scale concrete beam

ASJC Scopus subject areas

  • Building and Construction
  • Environmental Science(all)

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