1. Associate Professor, Dept. of Civil and Environmental Engineering, George Washington Univ., Washington, DC, 801 22nd St., Washington, DC 20052 (corresponding author).
2. Senior Design Engineer, e.construct USA-LLC, Omaha, NE 68106.
3. Leslie D. Martin Professor, Dept. of Civil Engineering, Univ. of Nebraska-Lincoln, Lincoln, NE 68588.
4. Vice-Rector, Ho Chi Minh City Univ. of Architecture, 196 Pasteur St., Ho Chi Minh City, Vietnam.