1. Research Associate, Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia (corresponding author).
2. Associate Professor, Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia.
3. Applied Mechanics and Structures Research Unit, Dept. of Civil Engineering, Chulalongkorn Univ., Bangkok 10330, Thailand.