1. Dept. of Civil and Environmental Engineering, Clarkson Univ., Potsdam, NY 13699.
2. Professor, Dept. of Civil and Environmental Engineering, Clarkson Univ., Potsdam, NY 13699 (corresponding author).
3. Assistant Professor, Civil Engineering School, Univ. of Costa Rica, San José 11501, Costa Rica.
4. Dept. of Civil and Environmental Engineering, Univ. of Connecticut, Storrs, CT 06269.
5. Professor, Dept. of Civil and Environmental Engineering, Univ. of Connecticut, Storrs, CT 06269.