ABSTRACT
Fatigue assessment was conducted for damaged strands collected from corroded tendons to evaluate their structural safety and serviceability. Fatigue test was conducted for the nominal stress range of 190 MPa and maximum nominal stress of 1100 MPa. All corroded strand specimens could not satisfy two million stress cycles recommended by Eurocode. Five specimens were tested under 70 MPa stress range which was known to be actual stress range in tendons under live load. Except one specimen, all of them were fractured and had fatigue lives lower than seven million stress cycles. On the other hand, the specimen without defect did not developed fatigue crack. It was observed that remaining fatigue life of corroded strand does not have any correlation with the size of corroded section. The lowest fatigue life was found from the least corroded strand.
