1. Grad. Student of Doctoral Course, Grad. School of Engrg., Hokkaido Univ., Nishi 8, Kita 13, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.
2. Mgr., Long-Span Bridge Engrg. Ctr., Honshu-Shikoku Bridge Authority, 4-1-22 Onoedori, Chuo-ku, Kobe, 651-0088, Japan.
3. Deputy Mgr., Tarumi Mgmt. Ofc., Honshu-Shikoku Bridge Authority, 549, Myodani-cho, Tarumi-ku, Kobe, 655-0852, Japan.
4. Proj. Mgr., Int. Div., Chodai Co., Ltd., 22-6, 3-chome, Kasuga, Tsukuba, Ibaraki, 305-0821, Japan.