Microdeformation measurement of concrete roadway slabs using fiber Bragg gratings

Ingeniería y Ciencia

Vélez-Hoyos, Francisco Javier¹  Gómez-Cardona, Nelson Darío²  Serpa-Imbet, Claudia Milena² 

[1] Universidad EAFIT, Medellín, Colombia;Instituto Tecnológico Metropolitano ITM, Medellín, Colombia

关键词: fiber optic sensors;    optical fiber Bragg gratings;    concrete roadway slabs;    finite element method;   

DOI  :  

学科分类：工程和技术（综合）

来源: Universidad E A F I T

【 摘 要 】

This work shows a non–invasive method for micro–deformation measurements of concrete structures using Bragg grating sensors in optical fibers adhered to the surface. Measurements on roadway slabs under a 10 kN static load are made, finding an approximated ratio of 2 : 1 between the deformation registered by the sensors and the values from a computational simulation with the finite element method. We propose the use of these sensors for slab structural monitoring in a road network employing distributed and wavelength multiplexed sensors. This is a first report in Colombia of roadway slabs microdeformation measurement using fiber optic sensors.

【 授权许可】

CC BY