1. Assistant Professor, Dept. of Civil Engineering, Univ. of Khartoum, Khartoum 11111, Sudan (corresponding author). ORCID: .
2. Associate Professor, Dept. of Civil Engineering, Univ. of Nottingham, Nottingham NG7 2RD, U.K.
3. Associate Professor, Dept. of Civil and Architectural Engineering, Qatar Univ., P.O. Box 2713, Doha, 2713, Qatar.