Objective Recently, the re-assessment of the collapse of the Koror-Babeldaob Bridge (in 1996), a pre-stressed bridge built by the cantilever method, concluded that this was due to excessive deflections that appeared and grew non-linearly some years after construction. Interestingly, similar trends were found for a group of 56 similar bridge spans, raising the question whether such concerns could influence the maintenance and service life of a high number of pre-stressed bridges in Europe and beyond. Although individual material and structural factors have been researched, this problem can only be solved by integrating physical and probabilistic models and benefiting from the increasing use of monitoring data. This proposal aims to:1.Review existing models for shrinkage and creep at specimen level,2.Establish robust hybrid FE models for medium/long-term predictions,3.Develop a novel monitoring approach based on Digital Image Correlation (DIC),4.Formulate a time-dependent reliability assessment framework, addressing creep and shrinkage uncertainties,5.Produce representative performance-time profiles for pre-stressed bridges based on the proposed framework and models.The above will be demonstrated via a case study – the Lezíria Bridge – possessing a unique combination of factors: (i) available monitoring data, (ii) pre-existing analysis models and (iii) an intimate knowledge by Dr. Helder Sousa, the researcher, of its construction and behaviour. The findings will be directly relevant to the growing number of bridges with this problem, enhancing the European knowledge and competitiveness in the global infrastructure market. For this, an interdisciplinary research and training programme has been set out, building on the researcher’s strong track record, expanding/honing his knowledge/skills, so that he can reach the forefront of highly qualified professionals able to solve problems in a creative/integrative manner, contributing to European expertise and wealth creation. Fields of science social sciencesmedia and communicationsgraphic designengineering and technologycivil engineeringstructural engineeringstructural health monitoringnatural sciencescomputer and information sciencesdatabasesnatural sciencesmathematicspure mathematicsgeometry Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Topic(s) MSCA-IF-2014-EF - Marie Skłodowska-Curie Individual Fellowships (IF-EF) Call for proposal H2020-MSCA-IF-2014 See other projects for this call Funding Scheme MSCA-IF-EF-ST - Standard EF Coordinator UNIVERSITY OF SURREY Net EU contribution € 183 454,80 Address Stag Hill GU2 7XH Guildford United Kingdom See on map Region South East (England) Surrey, East and West Sussex West Surrey Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 183 454,80
