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

fYear

2010

Firstpage

1

Lastpage

6

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICGPR.2010.5550194

Filename

5550194