1. Professor, Dept. of Civil Engineering, Fuzhou Univ., Fuzhou, Fujian Province, People’s Republic of China; and Professor, Dept. of Civil Engineering, Central South Univ., Changsha, Hunan Province, People’s Republic of China.
2. Professor, Dept. of Civil Engineering, Univ. of Kentucky, Lexington, KY 40506-0281 (corresponding author).
3. Professor, Dept. of Civil Engineering, Univ. of Kentucky, Lexington, KY 40506-0281.
4. Structural Engineer, URS Corp., Cincinnati, OH 45221.
5. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Cincinnati, Cincinnati, OH 45221-0071.