〇michio saitoh¹, ishii kiyoshi² (1.Japan Steel Bridge Association, 2.Nippon Engineering Consultants Co.,LTD.)

〇Yuta Masuda¹, Takeshi Hanji¹, Kazuo Tateishi¹, Masaru Shimizu¹ (1.Nagoya University)

〇Akiko Akimoto¹, Yoshihiro Yukizawa¹, Takeo Amitani¹ (1.East Japan Railway Company)

〇Atsuki Kaneshima¹, Kouhei Kamohara¹, Taro Inoue¹, Yusuke Kobayashi¹ (1.Railway Technical Research Institute)

〇Norifumi Yanagisawa¹, Shinji Hasegawa¹, Shigeyuki Matsui², Atsushi Mimura¹ (1.BRIDGE MAINTENANCE, INC., 2.OSAKA INSTITUTE OF TECHNOLOGY)

〇Shinji Hasegawa¹, Norifumi Yanagisawa¹, Shigeyuki Matsui², Atsushi Mimura¹ (1.BRIDGE MAINTENANCE, INC., 2. OSAKA INSTITUTE OF TECHNOLOGY)

〇Takashi Sato¹, Takahiro Terasawa¹, Satoshi Kasai¹, Takashi Imai² (1.Civil Engineering Research Institute for Cold Region, PWRI, 2.Rubber Bearing Association)

〇Shintaro Sawada¹, Kazutoshi Nagata¹ (1.Nagoya institute of technology)

〇Takahiro Terasawa¹, Hisashi Konno¹, Fumio Yamasawa¹, Takuro Nakamura¹, Masato Komuro² (1.CIVIL ENGINEERING RESEARCH INSTITUTE FOR COLD REGION, 2.MURORAN INSTITUTE OF TECHNOLOGY)

〇Chiharu Takaishi¹, Hiromichi Osima¹, Yuki Hasegawa¹, Kazuhiko Hayashi¹, Masayuki Matsumoto¹ (1.National Institute of Technology,Kagawa College)