1. Professor, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310058, P.R. China (corresponding author).
2. Master Student, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310058, P.R. China. Email: 21812079@zju.edu.cn
3. Ph.D. Student, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310058, P.R. China. Email: hwxiang@zju.edu.cn
4. Ph.D. Student, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310058, P.R. China.