1. Professor, College of Civil Engineering and Architecture, Key Laboratory of Civil Engineering Structures and Disaster Prevention and Mitigation Technology of Zhejiang Province, Zhejiang Univ. of Technology, Hangzhou, Zhejiang 310014, P. R. China.
2. Master Student, College of Civil Engineering and Architecture, Zhejiang Univ. of Technology, Hangzhou, Zhejiang 310014, P. R. China.
3. Associate Professor, College of Civil Engineering and Architecture, Zhejiang Univ. of Technology, Hangzhou, Zhejiang 310014, P. R. China.
4. Research Assistant, College of Civil Engineering and Architecture, Zhejiang Univ. of Technology, Hangzhou, Zhejiang 310014, P. R. China (corresponding author).