1. Professor, Dept. of Architecture and Architectural Systems, Kyoto Univ., Katsura, Kyoto 615-8504, Japan.
2. Associate Professor, Disaster Prevention Research Institute, Kyoto Univ., Uji, Kyoto 611-0011, Japan (corresponding author).
3. Senior Researcher, Steel Structure Research and Development Center, Nippon Steel Corp., Futtsu, Chiba 293-0011, Japan.
4. Postdoctoral Fellow, Disaster Prevention Research Institute, Kyoto Univ., Uji, Kyoto 611-0011, Japan.
5. Professor, Disaster Prevention Research Institute, Kyoto Univ., Uji, Kyoto 611-0011, Japan.