1. Associate Professor, Dept. of Civil Engineering, Indian Institute of Technology, Kanpur-208 016, India (corresponding author). E-mail: ashujain@iitk.ac.in
2. Formerly, Research Scholar, Dept. of Civil Engineering, Indian Institute of Technology, Kanpur-208 016, India.
3. Professor, Dept. of Civil Engineering, Indian Institute of Technology, Kanpur-208 016, India.