1. Professor, Dept. of Architecture and Architectural Engineering, Seoul National Univ., Gwanak 599, Gwanak-ro, Kwanak-Gu, Seoul, Korea 151-744 (corresponding author).
2. Graduate Student, Dept. of Architecture and Architectural Engineering, Seoul National Univ., Gwanak 599, Gwanak-ro, Kwanak-Gu, Seoul, Korea 151-744.
3. Associate Professor, Dept. of Architecture, Chonnam National Univ., 300 Yongbong-dong, Buk-gu, Gwangju, Korea 500-757.
4. Researcher at Daelim Industrial Co., 146-12 Susong-Dong, Jongno-Gu, Seoul, Korea 110-732.