1. Structural Engineer, Carpenter Wright Engineers, P.L.L.C., 304 9th Ave. South, Nashville, TN 37203. E-mail: dhughes@carpenterwright.com
2. Professor, Dept. of Civil Engineering, Harbert Engineering Center, Auburn Univ., Auburn, AL 36849. E-mail: geramey@eng.auburn.edu
3. Assistant Professor, Dept. of Civil Engineering, Harbert Engineering Center, Auburn Univ., Auburn, AL 36849. E-mail: hughema@eng.auburn.edu