1. Associate Professor, School of Civil Engineering and Architecture, Central South Univ., 22 Shaoshannan Rd., Changsha 410075, China; formerly, JSPS Postdoctoral Research Fellow, Dept. of Architecture, Kanagawa Univ., 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan.
2. Professor, Dept. of Architecture and Building Engineering, Kanagawa Univ., 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan (corresponding author).