1. Scientist, Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai-600 113, India (corresponding author).or
2. Retired, Professor and Head, Dept. of Civil Engineering, Malnad College of Engineering, Hassan-573 201, India.
3. Professor, Lehrstuhl für Ingenieurinformatik im Bauwesen, Ruhr-Univ. Bochum, 44780 Bochum, Germany.
4. Lecturer, Lehrstuhl für Ingenieurinformatik im Bauwesen, Ruhr-Univ. Bochum, 44780 Bochum, Germany.