1. Research Engineer, Institute of Technology, Shimizu Corporation, 3-4-17 Etchujima, Koto-Ku, Tokyo 135-8530, Japan.
2. Research Head, Engineering Research Institute, Sato Kogyo Company, Limited, 47-3 Sanda, Atsugi-shi, Kanagawa 243-0211, Japan.
3. Associate Professor, Dept. of Architecture, School of Science and Technology, Meiji Univ., 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan.
4. Research Engineer, Technical Research Institute, Nishimatsu Construction Company, Limited, 4054 Nakatsu, Aikawa-machi, Aiko-gun, Kanagawa 243-0303, Japan.
5. Professor, Dept. of Architecture, Tokyo Institute of Polytechnics, 1583 Iiyama, Atsugi-shi, Kanagawa 243-0297, Japan.