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FDTD modelling in high‐resolution 2D and 3D GPR surveys on a reinforced concrete column in a double wall of hollow bricks
Author(s) -
De Domenico D.,
Campo D.,
Teramo A.
Publication year - 2013
Publication title -
near surface geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.639
H-Index - 39
eISSN - 1873-0604
pISSN - 1569-4445
DOI - 10.3997/1873-0604.2012047
Subject(s) - ground penetrating radar , brick , finite difference time domain method , column (typography) , geology , reflection (computer programming) , reinforced concrete , high resolution , characterization (materials science) , geotechnical engineering , structural engineering , computer science , materials science , engineering , optics , remote sensing , civil engineering , radar , programming language , nanotechnology , telecommunications , physics , connection (principal bundle)
A structural characterization of a reinforced concrete column in a double wall of hollow bricks, carried out within diagnostics testing through 2D and 3D high‐frequency GPR surveys and aimed at the evaluation of the seismic vulnerability of a building is proposed. It highlights how the use of FDTD simulation allows the limits of these surveys to be overcome, with reference to the difficulty of the processing and interpretation steps in order to identify rebars beyond the hollow bricks. Their reflection pattern, being complex, makes it very hard to recognize the rebars placed parallel to the brick hollow axis direction.