1. Associate Professor, Key Laboratory for Wind and Bridge Engineering of Hunan Province, College of Civil Engineering, Hunan Univ., Changsha 410082, China.
2. Ph.D. Candidate, Dept. of Bridge Engineering, Hunan Univ., Changsha 410082, China; Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO 65401 (corresponding author).
3. Professor, Key Laboratory for Wind and Bridge Engineering of Hunan Province, College of Civil Engineering, Hunan Univ., Changsha 410082, China.
4. Graduate Student, Dept. of Bridge Engineering, Hunan Univ., Changsha 410082, China.