1. Professor, Dept. of Civil Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India (corresponding author).
2. Professor, Dept. of Civil and Materials Engineering, Univ. of Illinois at Chicago, Chicago 60607.
3. Assistant Professor, Dept. of Civil Engineering, Jaypee Univ. of Engineering & Technology, Raghogarh, Guna, MP 473226, India.