1. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., 111 Patton Hall, Blacksburg, VA 24061.
2. Research Assistant Professor, Virginia Polytechnic Institute and State Univ., Dept. of Civil and Environmental Engineering, 111A Patton Hall, Blacksburg, VA 24061.
3. Professor, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., 22 Patton Hall, Blacksburg, VA 24061.
4. Vice-President of Engineering, Menard USA, 150 East Main St. Suite 500, Carnegie, PA 15106.