1. Professor, Dept. of Architecture, Waseda Univ., Okubo, Shinjuku, Tokyo 169-8555, Japan.
2. Research Associate, Dept. of Architecture, Waseda Univ., Okubo, Shinjuku, Tokyo 169-8555, Japan.
3. Senior Research Engineer, Kobori Research Complex, Kajima Corp., Akasaka, Minato, Tokyo 107-8502, Japan.