1. PhD Research Scholar, Dept. of Civil Engineering, Indian Institute of Technology, Kanpur 208016, India.
2. Professor and Head, Dept. of Civil Engineering, Indian Institute of Technology, Kanpur 208016, India. E-mail: bithin@iitk.ac.in
3. Assistant Professor, Dept. of Civil Engineering, Indian Institute of Tchnology, Kanpur 208016, India.