1. Faculty of Civil and Water Resources Engineering, Bahir Dar University, Bahir Dar, Ethiopia
2. The Durham School of Architectural Engineering and Construction, University of Nebraska-Lincoln, the Peter Kiewit Institute, Omaha, NE, USA
3. College of Architecture, Art and Design, Mississippi State University, Starkville, MS, USA
4. Department of Civil Engineering, University of Minho, Guimaraes, Portugal