Simultaneous monitoring of strain and temperature in concrete structures with embedded fiber Bragg gratings

Yong Wang; Chuan Swee Tjin; Xiaoming Sun; Tuan-Kay Lim; Pilate Moyo; James M. W. Brownjohn

doi:10.1117/12.429635

13 June 2001 Simultaneous monitoring of strain and temperature in concrete structures with embedded fiber Bragg gratings

Yong Wang, Chuan Swee Tjin, Xiaoming Sun, Tuan-Kay Lim, Pilate Moyo, James M. W. Brownjohn

Author Affiliations +

Proceedings Volume 4317, Second International Conference on Experimental Mechanics; (2001) https://doi.org/10.1117/12.429635
Event: Second International Conference on Experimental Mechanics, 2000, Singapore, Singapore

Abstract

Fiber Bragg grating (FBG)-based strain and temperature sensor array were embedded into the concrete structure in order to provide real-time information on its strain and temperature distribution. The sensors were wavelength- multiplexed along a single fiber. The temperature and strain sensors were specially designed and optimized for their measurands. The calibration experiments of those FBG sensors, and parameter monitoring during the structural curing processes were also presented in this paper. These fiber optic strain and temperature sensor show many advantages over the traditional electrical strain gauges and thermocouples.

Citation Download Citation

Yong Wang, Chuan Swee Tjin, Xiaoming Sun, Tuan-Kay Lim, Pilate Moyo, and James M. W. Brownjohn "Simultaneous monitoring of strain and temperature in concrete structures with embedded fiber Bragg gratings", Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); https://doi.org/10.1117/12.429635

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