1. Professor, School of Civil Engineering, Tianjin Univ., Tianjin 300072, China.
2. Ph.D. Candidate, School of Civil Engineering, Tianjin Univ., Tianjin 300072, China.
3. Professor, School of Civil Engineering, Tianjin Univ., Tianjin 300072, China (corresponding author).
4. Assistant Chief Engineer, Shanghai Key Laboratory of Engineering Structure Safety, Shanghai Research Institute of Building Sciences, Shanghai 200032, China.