1. Dept. of Architectural Engineering, Hanyang Univ., 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, KR, e-mail: dyyoo@hanyang.ac.kr
2. Dept. of Civil Engineering, The Univ. of British Columbia, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, CA, e-mail: banthia@civil.ubc.ca
3. School of Civil, Environmental and Architectural Engineering, Korea Univ., 145 Anam-ro, Seongbuk-gu, Seoul 02841, KR (Corresponding author), e-mail: ysyoon@korea.ac.kr