1. Members, ASCE
2. PhD, Des. Engr., Obayashi Corp., 2-15-2 Konan, Minato ku, Tokyo 108-8502, Japan; formerly, Grad. Student, Dept. of Civ. Engrg., Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan.
3. PhD, Assoc. Prof., Dept. of Civ. Engrg., Univ. of Tokyo, Bunkyo-ku, Tokyo 113, Japan.
4. PhD Prof., Dept. of Civ. Engrg., Univ. of Tokyo, Bunkyo-ku, Tokyo 113, Japan.
5. PhD Candidate, Dept. of Civ. Engrg., Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan.