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[I-59] Fatigue Strength Improvement of Upper Edge of Vertical Stiffener by High-Frequency Induction Heating

*Taisei Tomita¹, Takeshi Hanji¹, Kazuo Tateishi¹, Masaru Shimizu¹, Satoshi Maeda², Junji Sasajima² (1. NAGOYA University, 2. Yokogawa Bridge Holdings Corp.)

Keywords:high-frequency induction heating, post-thermal treatment, upper edge of vertical stiffener , fatigue strength improvement, residual stress