1. Associate Professor, Dept. of Civil Engineering, Univ. of Engineering and Technology, Taxila, Pakistan (corresponding author).
2. Research Scholar, Dept. of Civil Engineering, Univ. of Engineering and Technology, Taxila, Pakistan. E-mail: hiddensnipper@gmail.com
3. Professor, Dept. of Civil Engineering, Univ. of Engineering and Technology, Taxila, Pakistan. E-mail: drmakamal@yahoo.com
4. Assistant Professor, Dept. of Civil Engineering, Univ. of Engineering and Technology, Taxila, Pakistan. E-mail: mjawadhuassain@uettaxila.edu.pk