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Risk Assessment and MOnitoring for BRIdges under Scour hazard

Description du projet

Nouvelle stratégie pour une détection et une prévention efficaces des risques d’affouillement des ponts

L’affouillement est un phénomène naturel et la cause la plus fréquente de défaillance des ponts. L’action érosive de l’eau qui s’écoule crée des trous d’affouillement lorsque les eaux rapides autour d’un pont emportent les sédiments de sa fondation. Les pratiques actuelles de gestion des risques d’affouillement des ponts sont relativement peu efficaces. Le projet RAMOBRIS, financé par l’UE, va développer une stratégie nouvelle et pluridisciplinaire pour évaluer le risque d’affouillement sur les ponts critiques. Il combinera des informations hydrologiques/hydrauliques et d’affouillement provenant à la fois de mesures et de prévisions pour évaluer la vulnérabilité structurelle. Basé sur une analyse structurelle non linéaire sous différentes charges hydrauliques et pour différentes typologies de ponts, ce nouveau cadre permettra d’estimer le risque actuel et futur, en tenant compte des effets du changement climatique.

Objectif

The RAMOBRIS project aims to develop a novel and multidisciplinary strategy for evaluating the risk of critical bridges against scour, combining hydrological/hydraulic and scour information deriving from both measurements and forecasting, and structural vulnerability assessments. Although scour is the leading cause of bridge failures in Europe and the rest of the world, current practices for bridge scour risk management are quite inefficient, being often based on expensive, potentially inaccurate, and time-consuming visual inspections. Moreover, current procedures do not allow an explicit quantification of the expected direct and indirect losses due to the occurrence of floods. The proposed project aims at overcoming the limitations of current procedures through a novel and multidisciplinary approach exploiting the experience of the fellow in hydraulic monitoring and analysis, with the one of the host and partner organisations in structural health monitoring, structural analysis, risk assessment, flood forecasting and scour analysis. The objectives of RAMOBRIS will be [1] to critically review monitoring techniques available for assessing bridge scour risk; [2] to define a cost-effective monitoring strategy for forecasting and measuring river flow, bridge scour, and bridge-performance; [3] to define an innovative probabilistic framework for real-time scour risk monitoring, using a Bayesian approach to combine the information from heterogeneous monitoring and forecasting systems; [4] to provide a framework for bridge vulnerability assessment based on nonlinear structural analysis under different hydraulic loads and for different bridge typologies, and to estimate current and future risk of bridge collapse due to scour, taking into account climate change effects. The research achievements will significantly contribute to the objectives of the European Programme for Critical Infrastructure Protection and to achievement of a resource efficient economy and society.

Coordinateur

UNIVERSITY OF STRATHCLYDE
Contribution nette de l'UE
€ 212 933,76
Adresse
Richmond Street 16
G1 1XQ Glasgow
Royaume-Uni

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Région
Scotland West Central Scotland Glasgow City
Type d’activité
Higher or Secondary Education Establishments
Liens
Coût total
€ 212 933,76