1. Ph.D. Candidate, Dept. of Structural Engineering, Tongji Univ., Shanghai 200092, China (corresponding author).
2. Professor, Doctoral Supervisor, College of Civil Engineering, Qingdao Technological Univ., Qingdao 266033, China.
3. Master, College of Civil Engineering, Qingdao Technological Univ., Qingdao 266033, China.