1. Graduate Research Assistant, Center for Infrastructure Engineering Studies, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Missouri-Rolla, Rolla, MO 65409.
2. Research Engineer, Center for Infrastructure Engineering Studies, Univ. of Missouri-Rolla, Rolla, MO 65409.
3. Professor and Chair, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami, Coral Gables, FL; and, Professor, Dept. of Structural Analysis and Design, Univ. of Naples Federico II, Naples, Italy.