1. Research Scholar, Dept. of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
2. Civil Engineer, Larsen and Toubro Construction Division, Manapakkam, Chennai 600 089, India.
3. Graduate Student, Dept. of Civil Engineering, SRM Univ., Chennai 603203, India.
4. Professor, Dept. of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India (corresponding author).