1. Structural Engineer, Ebmeier Engineering, LLC, 58187 250th St., Glenwood, IA 51534; and Assistant Professor, Assiut Univ., Assuit, Egypt 71515.
2. Associate Professor, Durham School of Architectural Engineering and Construction, Univ. of Nebraska–Lincoln, Omaha, NE 68182 (corresponding author).
3. Principal, e-construct, LLC, 11823 Arbor St., Omaha, NE 68144; and Emeritus Professor of Civil Engineering, Univ. of Nebraska–Lincoln, Omaha, NE 68182.