1. Ph.D. Candidate, Dept. of Civil & Environmental Engineering, Tufts Univ., Medford, MA 02155.
2. Ph.D. Candidate, Dept. of Civil Engineering, The City College of CUNY, New York, NY, 10031.
3. Professor, Dept. of Civil & Environmental Engineering, Tufts Univ., Medford, MA 02155 (corresponding author).
4. Professor, Dept. of Civil Engineering, The City College of CUNY, New York, NY, 10031.
5. Research Structural Engineer, Federal Highway Administration, Office of Infrastructure R&D, McLean, VA 22101.