1. Ph.D. Candidate, Research Center for Wind Engineering, School of Civil Engineering, Southwest Jiaotong Univ., Chengdu, Sichuan 610031, China.
2. Professor, Research Center for Wind Engineering, School of Civil Engineering, Southwest Jiaotong Univ., Chengdu, Sichuan 610031, China (corresponding author).
3. Professor, National Wind Institute, Dept. of Civil, Environmental, and Construction Engineering, Texas Tech Univ., Lubbock, TX 79409.
4. Professor, NatHaz Modeling Laboratory, Dept. of Civil and Environmental Engineering and Earth Sciences, Univ. of Notre Dame, Notre Dame, IN 46556.