1. Assistant Professor, School of Architecture and Civil Engineering, Jinggangshan Univ., Ji’an, Jiangxi 343009, China; Visiting Ph.D. Student, Dept. of Civil and Environmental Engineering, North Dakota State Univ., Fargo, ND 58105.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, North Dakota State Univ., Fargo, ND 58105 (corresponding author).
3. Professor, School of Architecture and Civil Engineering, Jinggangshan Univ., Ji’an, Jiangxi 343009, China.