1. Associate Professor, Dept. of Perceptual Sciences and Design Engineering, Faculty of Engineering, Yamaguchi Univ., Tokiwadai 2-16-1, Ube, Yamaguchi 755-8611, Japan; formerly, Senior Research Engineer, Technical Research Institute, Hazama Corporation, Tsukuba, Japan.
2. Advanced Research Engineer, Structural Engineering Dept., Building Research Institute, Tachihara 1, Tsukuba, Ibaraki 305-0802, Japan.
3. Senior Research Engineer, Section of Building Engineering, Technical Research Institute, Matsumura-Gumi Corporation, Minami-machi 5-2-2, Kanokodai, Kita-ku, Kobe, Hyougo 651-1514, Japan.
4. Chief Research Engineer, Structural Engineering Dept., Technical Research Institute, Obayashi Corporation, Shimokiyoto 4-640, Kiyose, Tokyo 204-8558, Japan.
5. Chief Research Engineer, Building Structural Dept., Kajima Technical Research Institute, Kajima Corporation, Tobitakyu 2-19-1, Chofu, Tokyo 182-0036, Japan.
6. Research Engineer, Technical Research Institute, Asanuma Corporation, Otsuka-cho 3-24-1, Takatsuki, Osaka 569-0034, Japan.