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Fretting fatigue test of prestressing strands 19S15.2 covering with resin in the curved layout at external tendons of prestressed concrete bridege was carried out. It was shown from the test result that a cable covering with resin was effective in suppressing fretting fatigue.Furthemore, three dimensional FE analysis were performed when prestressing and load carrying.From the FE results, we show that displacement, contact and stress state of the prestressing strands were simulated.