維持管理（耐荷性能）(2)

[I-289] Residual stress distribution of a steel truss bridge built-up member passing 115 years since the completion

〇Tsukasa Nakakita¹, Takao Miyoshi², Kaname Iwatubo³, Toshikazu Takai⁴, Ryouichi Satake⁵, Kazuya Tamada⁶ (1.National Institute of Technology, Akashi College, 2.National Institute of Technology, Akashi College, 3.National Institute of Technology, Kumamoto College, 4.Kyushu Institute of Technology, 5.Chuden Engineering Consultants, 6.National Institute of Technology, Maiduru College)

Keywords:aged steel, built-up member, channel shaped-steel, residual stress, magnetostriction stress measurement