1. Ph.D. Student, Dept. of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
2. Professor, Dept. of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
3. Professor, Dept. of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India (corresponding author).