TY - GEN
T1 - Application of FBG strain sensors in the measurement of three-directional strains within asphalt pavement
AU - Zejiao, D.
AU - Yiqiu, T.
AU - Fengchen, C.
AU - Hao, L.
PY - 2009
Y1 - 2009
N2 - Fiber Bragg Grating (FBG) sensor is a relatively new tool to directly acquire dynamic strain responses of pavements subjected to traffic loading. Three-directional strain sensors jointed with a nylon junction are introduced here. At first, a four-point bending beam with FBG sensor embedded was designed to evaluate the coordinated working performance between sensor and pavement material in laboratory. Then, detailed instrumentation scheme on site is introduced followed with a preliminary analysis of different strain response histories. The results show that three-directional strains measurement put forward here gives fine responses for different loading conditions at different depths within the pavement structure. The pavement material is alternatively submitted to compressive and tensile strains, and observable residual vertical strain exists after single loading passes.
AB - Fiber Bragg Grating (FBG) sensor is a relatively new tool to directly acquire dynamic strain responses of pavements subjected to traffic loading. Three-directional strain sensors jointed with a nylon junction are introduced here. At first, a four-point bending beam with FBG sensor embedded was designed to evaluate the coordinated working performance between sensor and pavement material in laboratory. Then, detailed instrumentation scheme on site is introduced followed with a preliminary analysis of different strain response histories. The results show that three-directional strains measurement put forward here gives fine responses for different loading conditions at different depths within the pavement structure. The pavement material is alternatively submitted to compressive and tensile strains, and observable residual vertical strain exists after single loading passes.
UR - https://www.scopus.com/pages/publications/84859924858
M3 - 会议稿件
AN - SCOPUS:84859924858
SN - 9780415804325
T3 - Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields
SP - 427
EP - 434
BT - Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields
T2 - 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCR2A'09
Y2 - 29 June 2009 through 2 July 2009
ER -