[1] Univ Illinois, Dept Civil & Environm Engn, 3140 Newmark Civil Engn Bldg,205 N Mathews, Urbana, IL 61801 USA
[2] Univ Helwan, Fac Fine Arts, Dept Architecture, 4 Mohamed Thakeb St, Zamalek, Cairo, Egypt
[3] Univ Illinois, Dept Civil & Environm Engn, 3112 Newmark Civil Engn Bldg,205 N Mathews, Urbana, IL 61801 USA