1. Dept. of Civil and Environmental Engineering, Univ. of Tennessee Knoxville, 223 Perkins Hall, Knoxville, TN 37996-2010.
2. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Tennessee Knoxville, 223 Perkins Hall, Knoxville, TN 37996-2010 (corresponding author).
3. Senior Principal Structural Engineer, Structural Engineering and Mechanics, CTL Group, 5400 Old Orchard Rd., Skokie, IL 60077.