Concrete pipe strain measurement using optical fiber sensor

This paper describes a load carrying test for a concrete pipe designed to s tudy the effectiveness of distributed strain measurement using an optical f iber sensor. We performed a load carrying test on a concrete pipe and attem pted to detect the distributed strain inside it using an optical fiber sens or 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 cr ack 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.