Static testing of a bridge using an interferometric radar: the case study of "Ponte degli Alpini," Belluno, Italy

ScientificWorldJournal. 2013 Oct 9:2013:504958. doi: 10.1155/2013/504958. eCollection 2013.

Abstract

Ground-based radar interferometry is an increasingly popular technique for monitoring civil infrastructures. In this paper, the static testing of a bridge is reported. It was an 8-span bridge, 297 m long, named "Ponte degli Alpini," crossing the valley of the Ardo River. The radar has been used for testing a lateral span and a central span. The obtained results present elements of novelty not previously reported in the literature. In fact, some displacement measurements of the lateral span have been affected by a horizontal shift that has to be taken into account for a correct interpretation of the measured data. Furthermore, the measurements of the central span have been carried out with the radar positioned transversally with respect to the bridge deck; this unusual arrangement has allowed for obtaining displacement maps less geometrically distorted with respect to other cases reported in the literature.

MeSH terms

  • Facility Design and Construction / methods
  • Interferometry / methods*
  • Radar*
  • Structure Collapse / prevention & control