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Application of duplex stainless steel for welded bridge construction in aggressive environment

Ziel

Maintenance costs are a significant item in life cycle of steel bridges in general, of paramount importance in aggressive environments. The use of duplex stainless steels for bridge decks would be a major step forward in providing durable, low maintenance structures, exploiting both their corrosion resistance and high mechanical properties, capable of meeting in full the required structural safety performances.

Together with the high cost, a major barrier to the use of duplex steels in welded bridge construction is the lack of experimental data on fatigue strength and technological feasibility, to be assessed in comparison with the vast know how available for traditional steels. As a consequence, Eurocode 3 for bridge design (ENV 1993-2) does not include stainless steel bridges.

The objective of the proposed project is to explore the field of the use of duplex stainless steel in welded bridge construction via mechanical testing and numerical analyses, so as to provide indications suitable to form the basis for an upgrade of Eurocode 3 and to allow a reliable Life Cycle Cost analysis for this kind of structures so as to address the best material choice for the future long span suspension bridges.

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CENTRO SVILUPPO MATERIALI SPA
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Via di Castel Romano 100/102
ROMA
Italien

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Letzte Aktualisierung: 24 November 2006

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Permalink: https://cordis.europa.eu/project/id/RFSR-CT-2004-00040/de

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