1. Professor and Brahmaputra, Dept. of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, West Bengal, India (corresponding author).
2. Doctoral Research Fellow, Dept. of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, West Bengal, India.
3. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Florence, via S. Marta 3, Firenze 50139, Italy.