Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/26346
Title: Measurement of cracks in concrete beams using a brillouin optical time domain analysis sensing technology
Authors: Hong, CY
Yin, JH 
Pei, HF
Huang, D
Keywords: BOTDA
Large tensile cracks
Loop installation method
Small scale concrete beam
Issue Date: 2010
Source: Proceedings of the 2nd International Postgraduate Conference on Infrastructure and Environment, IPCIE 2010, 2010, v. SUPPL., p. 22-28 How to cite?
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.
Description: 2nd International Postgraduate Conference on Infrastructure and Environment, IPCIE 2010, Hong Kong, 1-2 June 2010
URI: http://hdl.handle.net/10397/26346
ISBN: 9789881731135
Appears in Collections:Conference Paper

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