1. Associate Professor, State Key Laboratory of Coastal and Offshore Engineering School of Civil Engineering, Dalian Univ. of Technology, Dalian, Liaoning 116024, PR China.
2. Ph.D. Candidate, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO 65401.
3. Professor and Abbett Distinguished Chair, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO 65401.
4. Ph.D. Candidate, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, Pine Building 205, 1201 N. Pine St., Rolla, MO, 65401 (corresponding author).