DECOMAR

Intitulé du projet de recherche : Integrated Design Concept of Marine Steel Structures with special Consideration of Corrosion Impact

Référence : F1R-ING-PUL-07DECO

Chef de projet : M. Christoph Odenbreit

Equipe des chercheurs : Paulo Osorio (Doctorand), Arno Zürbes, Michael Scheuern

Domaine de recherche : Engineering / Génie Civil

Durée du projet : 01.01.2007 – 31.12.2009

Partenaires : Prof. Dr. T. Vrouwenvelder (Technical University (TU DELFT / The Netherlands), Dr. Alex Schmitt (Arcelor /Profil ARBED
Esch sur Alzette / Luxembourg)

Objectifs : The objective of this research is to set up a combination of methods. Special consideration lies on the identification and mathematical description and prediction of the corrosion process.
The determination of the characteristic values for safety factors, combination coefficients, actions and resistances must be in full accordance with the probabilistic concept of EC0, EC3 and EC7.
The results (to corrosion prediction and analyzing method) must be prepared in a practice oriented manner.

Résultats: In order to achieve the final objective, the entire project is breakdown in work packages.
In the Initial Work package (current in progress), all the design methods, strategies and design philosophy of 4 Countries (Netherland, Germany, UK, France) is been compared in reference to their respective National Standards used.
In order to get a comparative view of the structural resistance of various sheet pile cross sections used widely across the European continent, the initial approach to this will be by carrying out a Structural analysis of all the sheet pile as it is done respectively in 4 chosen countries.
Study of Parameters affecting the various different displacements obtained of the sheet pile wall due to various sub grade reaction models used is done.
The corroded section modulus is then determined using respective corrosion allowance and the impact of structural parameters will be studied in the outcome.
The impact of this corroded section modulus on the design is then verified and checked if it fits into the existing experiences (data from the port authorities). The final aim is to be able to determine a semi-probabilistic approach for consideration of corrosion allowance according to EC7.