Earthquakes and foundation scour are the major causes of bridge failure worldwide. Many bridges in earthquake-prone countries have shallow foundations, whose stability and seismic vulnerability can be significantly undermined by flood-induced scour. This article provides the first results of the “DYMOBRIS” project (DYnamic identification and MOnitoring of scoured BRIdgeS under earthquake hazard), a H2020-SERA EU-funded project aiming at i) developing a methodology for non-invasive detection of scour in bridges with shallow foundations based on vibration monitoring, and ii) quantifying the effects of scour on the seismic vulnerability of these Soil-Foundation-Structure (SFS) systems. The experimental campaign involves various tests, from ambient vibration to force vibration, on the EuroProteas prototype under different scour conditions. The preliminary finite element models developed for defining the scour profile to be imposed in the in-field tests are presented here, together with some results concerning the effects of scour on the SFS dynamic properties.

Field tests on a soil-foundation-structure system subjected to scour / Tubaldi, Enrico; Lupo, Rosa; Mitoulis, Stergios; Argyroudis, Sotiris; Gara, Fabrizio; Ragni, Laura; Carbonari, Sandro; Dezi, Francesca. - ELETTRONICO. - (2019), pp. 1-5. (Intervento presentato al convegno XVIII Convegno ANIDIS L'ingegneria sismica in Italia tenutosi a Ascoli Piceno nel 15-19 Settembre 2019).

Field tests on a soil-foundation-structure system subjected to scour

Fabrizio Gara;Laura Ragni;Sandro Carbonari;
2019-01-01

Abstract

Earthquakes and foundation scour are the major causes of bridge failure worldwide. Many bridges in earthquake-prone countries have shallow foundations, whose stability and seismic vulnerability can be significantly undermined by flood-induced scour. This article provides the first results of the “DYMOBRIS” project (DYnamic identification and MOnitoring of scoured BRIdgeS under earthquake hazard), a H2020-SERA EU-funded project aiming at i) developing a methodology for non-invasive detection of scour in bridges with shallow foundations based on vibration monitoring, and ii) quantifying the effects of scour on the seismic vulnerability of these Soil-Foundation-Structure (SFS) systems. The experimental campaign involves various tests, from ambient vibration to force vibration, on the EuroProteas prototype under different scour conditions. The preliminary finite element models developed for defining the scour profile to be imposed in the in-field tests are presented here, together with some results concerning the effects of scour on the SFS dynamic properties.
2019
978-88-3339-256-1
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/269908
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