Title :
Masonry arch bridges evaluation by means of GPR
Author :
Solla, Mercedes ; Lorenzo, Henrique ; Rial, Fernando Israel ; Novo, Alexandre ; Riveiro, Belén
Author_Institution :
Escola Univ. de Enxeneria Tec. Forestal, Univ. of Vigo, Pontevedra, Spain
Abstract :
Some masonry arch bridges in Galicia (NW Spain) were surveyed with GPR using 250 and 500 MHz antennas. The main goal of this work was to perform an analysis of historical bridges, obtaining information about filling material homogeneity, detecting inclusions of different materials, defining structural faults -such as internal voids or cracks- and detecting ancient features -as hidden arches or previous profiles of the bridge-. Geometric 3D models of the surveyed bridges obtained with Laser Scanning methods, were used as inputs to create synthetic radargrams through FDTD simulations in order to help GPR data interpretation.
Keywords :
bridges (structures); cracks; finite difference time-domain analysis; ground penetrating radar; voids (solid); FDTD simulation; GPR; cracks; filling material homogeneity; geometric 3D models; historical bridges; inclusions; internal voids; laser scanning method; masonry arch bridges evaluation; structural faults; synthetic radargrams; Bridges; Computer vision; Fault detection; Filling; Ground penetrating radar; Information analysis; Optical materials; Performance analysis; Radar detection; Solid modeling; FDTD modelling; GPR; Historical bridges; Laser Scanning;
Conference_Titel :
Ground Penetrating Radar (GPR), 2010 13th International Conference on
Conference_Location :
Lecce
Print_ISBN :
978-1-4244-4604-9
Electronic_ISBN :
978-1-4244-4605-6
DOI :
10.1109/ICGPR.2010.5550194
