1. Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., Raleigh, NC 27695-7908. E-mail: gabr@eos.ncsu.edu
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Texas at Arlington, 404 Nedderman Hall, Arlington, TX 76019-0308. E-mail: hossain@uta.edu
3. Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., Raleigh, NC 27695-7908. E-mail: barlaz@eos.ncsu.edu