1. Professor, Dept. of Architecture, Seoul National Univ., 39-430, San 56-1 Shinlim-dong, Kwanak-gu, Seoul 151-742, Korea.
2. Associate Research Engineer, Construction Strategy and Research Institute of Hanmiparsons, Co., Ltd., 9th Fl., City Air Tower Bldg., 159-9, Samgsung-dong, Kangnam-gu, Seoul 135-973, Korea.
3. Associate Professor, Dept. of Architecture, Seoul National Univ., 39-433, San 56-1 Shinlim-dong, Kwanak-gu, Seoul 151-742, Korea (corresponding author).
4. Full-Time Lecturer, Changwon National Univ., 9 Sarim-dong, Changwon, Gyeongnam 641-773, Korea.