1. Osaka City University, Department of Urban Engineering, Graduate School of Engineering, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka-shi, 558-8585, Japan
2. Kyoto University, Department of Architecture and Architectural Engineering, Graduate, School of Engineering, 4 Kyoto University Katsura Campus, Nishikyo-ku, Kyoto-shi, 615-8540, Japan