1. Research Fellow, Structural Engineering, Dept. of Civil and Environmental Engineering, Imperial College London, Kensington, London SW7 2BB, U.K.
2. Senior Lecturer, Structural Engineering, School of Civil Engineering and Surveying, Centre for Future Materials, Univ. of Southern Queensland, Toowoomba, QLD 4350, Australia (corresponding author).
3. Formerly, Professor, Structural Engineering, Univ. of Southern Queensland, Toowoomba, QLD 4350, Australia.
4. Professor, Structural Engineering, School of Civil Engineering and Surveying, Centre for Future Materials, Univ. of Southern Queensland, Toowoomba, QLD 4350, Australia.
5. Senior Lecturer, Civil Engineering, School of Engineering, Deakin Univ., Burwood, VIC 3216, Australia; Adjunct Senior Lecturer, Univ. of Southern Queensland, Darling Heights, QLD 4350, Australia.