1. Assistant Professor, Dept. of Civil Engineering, Fujian Univ. of Technology, Fuzhou 350007, China.
2. Dean, College of Civil Engineering, Fuzhou Univ., Fuzhou 350108, China.
3. Visiting Research Fellow, College of Civil Engineering, Fuzhou Univ., Fuzhou 350108, China.
4. Associate Professor, Dept. of Civil Engineering, Utah State Univ., Logan, UT 84322-4110 (corresponding author).
5. Associate Professor, Dept. of Civil Engineering, Utah State Univ., Logan, UT 84322-4110.