1. Research Engineer, Charles E. Via Dept. of Civil and Environmental Engineering, Virginia Tech, 200 Patton Hall, Blacksburg, VA 24060 (corresponding author).
2. Associate Professor, Durham School of Architecture Engineering and Construction, Univ. of Nebraska–Lincoln, 1110 S. 67th St., Omaha, NE 68182.
3. Principal, e.construct.USA, LLC, 11823 Arbor St., Suite 200, Omaha, NE, 68144; and Professor Emeritus, Civil Engineering, Univ. of Nebraska–Lincoln, 1110 S. 67th St., Omaha, NE 68182.