1. Associate Professor, College of Civil Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, PR China (corresponding author).
2. Ph.D. Student, College of Civil Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, PR China.
3. Professor, College of Civil Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, PR China.
4. Associate Professor, College of Civil Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, PR China.