1. Associate Member, ASCE
2. Member, ASCE
3. PhD, Asst. Prof., Dept. Engrg. Technol., Texas Tech Univ., Box 43107, Lubbock, TX 79409-3107. E-mail: Yong.Bai@coe.ttu.edu
4. PhD, Assoc. Prof., Dept. of Civ. Engrg., North Carolina State Univ., Raleigh, NC 27695.