1. Assistant Professor, Dept. of Civil Engineering, Kuwait Univ., P.O. Box 5969, Safat 13060, Kuwait; presently, on leave, Assistant Professor, Dept. of Civil Engineering, Cairo Univ., Cairo 12613, Egypt (corresponding author). ORCID: .
2. Professor, Dept. of Civil Engineering, Hashemite Univ., P.O. Box 330127, Zarqa 13133, Jordan.