Concrete Pipe Strain Measurement Using Optical Fiber Sensor

Norifumi YASUE  Hiroshi NARUSE  Jun-ichi MASUDA  Hironori KINO  Toshio NAKAMURA  Taketoshi YAMAURA  

IEICE TRANSACTIONS on Electronics   Vol.E83-C   No.3   pp.468-474
Publication Date: 2000/03/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Optical Fiber Sensors)
Category: System Applications and Field Tests
tunnel,  optical fiber sensor,  strain measurement,  concrete pipe,  

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This paper describes a load carrying test for a concrete pipe designed to study the effectiveness of distributed strain measurement using an optical fiber sensor. We performed a load carrying test on a concrete pipe and attempted to detect the distributed strain inside it using an optical fiber sensor mounted inside the pipe. We confirmed that it was possible to detect the strain in a concrete structure by using an optical fiber sensor after a crack had occurred on the concrete surface. This paper shows that measurement using the optical fiber sensor was effective despite great changes in the strain conditions of the measured object over a short distance.