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Assessment of Scour Risk in Hydraulic Infrastructures. A Bridge Case Study

Assessment of Scour Risk in Hydraulic Infrastructures. A Bridge Case Study
Autor(en): , , , ,
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Beitrag für IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022, veröffentlicht in , S. 1366-1373
DOI: 10.2749/prague.2022.1366
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The scouring phenomenon can pose a serious threaten to bridge serviceability and users' safety, as well. In extreme circumstances, it can lead to the bridge's structural collapse. Despite efforts t...
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Bibliografische Angaben

Autor(en): (Water Resources and Hydraulic Structures Division, Hydraulics and Environment Department, National Laboratory of Civil Engineering, 1700-066 Lisboa, Portugal)
(Water Resources and Hydraulic Structures Division, Hydraulics and Environment Department, National Laboratory of Civil Engineering, 1700-066 Lisboa, Portugal)
(Water Resources and Hydraulic Structures Division, Hydraulics and Environment Department, National Laboratory of Civil Engineering, 1700-066 Lisboa, Portugal)
(Water Resources and Hydraulic Structures Division, Hydraulics and Environment Department, National Laboratory of Civil Engineering, 1700-066 Lisboa, Portugal)
(Hydraulics, Water Resources and Environmental Division, Civil Engineering Department, Faculty of Engineering of the University of Porto, 4200-465 Porto, Portugal)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022
Veröffentlicht in:
Seite(n): 1366-1373 Anzahl der Seiten (im PDF): 8
Seite(n): 1366-1373
Anzahl der Seiten (im PDF): 8
DOI: 10.2749/prague.2022.1366
Abstrakt:

The scouring phenomenon can pose a serious threaten to bridge serviceability and users' safety, as well. In extreme circumstances, it can lead to the bridge's structural collapse. Despite efforts to reduce the scour's unfavorable effects in the vicinity of bridge foundations, this issue remains a significant challenge. Many uncertainties affect the design process of bridge foundations, namely the associated hydrological and hydraulic parameters. Past and recent flood records strengthen bridges' vulnerability by reducing scouring estimation uncertainties. Therefore, the present study applies a semi-quantitative methodology of scour risk assessmentto a Portuguese bridge case study, accounting for those uncertainties. The risk-based methodology comprises three main steps towards the assignment of the bridge's scour risk rating. The methodology constitutes a potential key tool for risk management activities, assisting bridge's owners and managers in decision-making.
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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