Non-destructive and effective bridge monitoring through fast-falling weight deflectometer
Mario Lucio Puppio
(University of Cagliari, Cagliari, Italy)
Fausto Mistretta (University of Cagliari, Cagliari, Italy)
Mauro Coni (University of Cagliari, Cagliari, Italy)
Mauro Sassu (University of Cagliari, Cagliari, Italy)
|Conference:||IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021|
|Published in:||IABSE Congress Ghent 2021|
|Total no. of pages:||10|
Recent collapses due to hydrogeological soil instability caused by extreme climate events recall the attention on a large-scale monitoring of the road infrastructures, particularly bridges and viaducts. Several studies focus the attention on both hydraulic and structural issues. In-depth systematic investigations do not suit this purpose because of time and cost investments usually carried out from local authorities. Increasing needs of available fast, low cost and reliable methods to investigate the performance of the road and bridges pushed towards new applications. The use of Fast-Falling Weight Deflectometer, conceived for airport pavements, is here applied as a non-destructive test to evaluate the stiffness of the deck and embankment of a bridge. The- Fast Falling Weight Deflectometer can produce a broadband, constant and replicable dynamic force, providing data in real time. An experimental campaign is here described on a case study of single span bridge.
health monitoring aging structural response concrete degradation non-destructive test bridge vulnerability infrastructure monitoring Fast Falling Weight Deflectometer aging effect
|Copyright:||© 2021 International Association for Bridge and Structural Engineering (IABSE)|
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