1. Associate Professor, Dept. of Civil Engineering, Jordan Univ. of Science and Technology (JUST), P.O. Box 3030, Irbid 22110, Jordan (corresponding author).
2. Professor, Dept. of Civil Engineering, Jordan Univ. of Science and Technology (JUST), P.O. Box 3030, Irbid 22110, Jordan.
3. Associate Professor, Dept. of Civil Engineering, Philadelphia Univ., Amman 19392, Jordan.
4. Student, Dept. of Civil Engineering, Jordan Univ. of Science and Technology (JUST), P.O. Box 3030, Irbid 22110, Jordan.