1. M. Tech. Graduate, Dept. of Civil Engineering, National Institute of Technology, Tiruchirappalli, Thuvakudi, Tamil Nadu 620 015, India.
2. Assistant Professor, Dept. of Civil Engineering, National Institute of Technology, Tiruchirappalli, Thuvakudi, Tamil Nadu 620 015, India (corresponding author). E-mail: rgmathii@nitt.edu
3. Associate Professor, Dept. of Civil Engineering, National Institute of Technology, Tiruchirappalli, Thuvakudi, Tamil Nadu 620 015, India.
4. Associate Professor, Dept. of Civil Engineering, Vimal Jyothi, Engineering College, Chemperi, Kannur, Kerala 670 632, India; Adhoc Faculty, Dept. of Civil Engineering, National Institute of Technology, Calicut, Kerala 673 601, India.