1. Formerly, Graduate Student, Dept. of Civil, Structural, and Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland.
2. Associate Professor, Dept. of Civil, Structural, and Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland (corresponding author). E-mail: basub@tcd.ie
3. Senior Lecturer, Dept. of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland.