1. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Missouri, E2503 Lafferre Hall, Columbia, MO 65211 (corresponding author).
2. Associate Professor, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907.
3. Dept. of Civil and Environmental Engineering, Univ. of Missouri, E2509 Lafferre Hall, Columbia, MO 65211.
4. Structural Engineer, Staff I–Structures, Engineering of Structures and Building Enclosures, Simpson Gumpertz and Heger, 150 S. Wacker Dr., Suite 2400, Chicago, IL 60606.