1. Ph.D. Candidate, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO 65409.
2. Assistant Professor, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO 65409.
3. Associate Professor, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou, Zhejiang 310058, China (corresponding author).