1. Research Structural Engineer, Structural Mechanics Branch, Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, 3909 Halls Ferry Rd., CEERD-GS-M, Bldg 5008, Vicksburg, MS 39180 (corresponding author).
2. Structural Engineer, U.S. Air Force Civil Engineering Center, 139 Barnes Dr., Suite 1, Tyndall Air Force Base, FL 32403; formerly, Senior Research Engineer, Air Force Civil Engineering Support Agency, 139 Barnes Dr., Suite 1, Tyndall AFB, FL 32403.
3. Associate Professor, Dept. of Civil Engineering, Auburn Univ., Auburn, AL 36849.