1. Department of Civil and Environmental Engineering, Beirut Arab University, P.O. Box 11-5020, Riad El Solh, Beirut 1107, Lebanon
2. Department of Civil and Environmental Engineering, University of Balamand, P.O. Box 100, Al Koura 1304, Lebanon
3. Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton DY3 3PX, UK
4. Department of Civil and Environmental Engineering, Faculty of Engineering, University of Maryland, College Park, MD 20742, USA
5. Department of Civil and Environmental Engineering, Faculty of Engineering, Alexandria University, Alexandria 21511, Egypt