1. Project Officer, Dept. of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
2. Graduate Student, Dept. of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
3. Assistant Professor, Dept. of Civil Engineering, Birla Institute of Technology and Science, Pilani 333031, India.
4. Professor, Dept. of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India (corresponding author).