1. Associate Professor, Dept. of Civil and Architectural Engineering, Sultan Qaboos Univ., PO Box 33, Al-Khoudh, PC 123, Oman (corresponding author).
2. Associate Professor, Dept. of Civil and Architectural Engineering, Sultan Qaboos Univ., PO Box 33, Al-Khoudh, PC 123, Oman.
3. Professor, Dept. of Civil and Architectural Engineering, Sultan Qaboos Univ., PO Box 33, Al-Khoudh, PC 123, Oman.
4. Assistant Professor, Dept. of Civil and Architectural Engineering, Sultan Qaboos Univ., PO Box 33, Al-Khoudh, PC 123, Oman.