1. Research Fellow, School of Planning Architecture and Civil Engineering, Queen’s Univ. Belfast, David Keir Building, Belfast BT9 5AG, U.K. (corresponding author).
2. Chair of Structural Materials, School of Planning Architecture and Civil Engineering, Queen’s Univ. Belfast, David Keir Building, Belfast BT9 5AG, U.K.
3. Professor, School of Planning Architecture and Civil Engineering, Queen’s Univ. Belfast, David Keir Building, Belfast BT9 5AG, U.K.
4. Professor, School of Engineering and Mathematical Sciences, City Univ. London, Northampton Square, London EC1V 0HB, U.K.
5. Senior Lecturer, School of Engineering and Mathematical Sciences, City Univ., Northampton Square, London EC1V 0HB, U.K.