1. Graduate Student, Univ. of Engineering and Technology, Peshawar 25000, Pakistan.
2. Associate Professor, Dept. of Civil Engineering, Univ. of Engineering and Technology, Peshawar 25000, Pakistan.
3. Assistant Professor, Sonny Astani Dept. of Civil and Environmental Engineering, Univ. of Southern California, 3620 S. Vermont Ave., KAP 210, Los Angeles, CA 90089-2531 (corresponding author).
4. Assistant Professor, Dept. of Civil Engineering, Nazarbayev Univ., Astana 010000, Kazakhstan.