1. Project Professional, Fugro Consultants, Inc., 6100 Hillcroft Ave., Houston, TX 77081; formerly, Postdoctoral Researcher, School of Civil Engineering, Purdue Univ., West Lafayette, IN 47907.
2. Professor Emeritus, School of Civil Engineering, Purdue Univ., West Lafayette, IN 47907 (corresponding author).
3. Assistant Professor, Dept. of Civil and Environmental Engineering, American Univ. of Beirut, Beirut, Lebanon 1107 2020.