1. Ph.D. Candidate, Dept. of Civil Engineering, Monash Univ., Building 60, Melbourne, VIC 3800, Australia.
2. Adjunct Research Associate, Dept. of Civil Engineering, Monash Univ., Building 60, Melbourne, VIC 3800, Australia.
3. Professor, Dept. of Civil Engineering, Monash Univ., Building 60, Melbourne, VIC 3800, Australia (corresponding author).