1. School of Civil Engineering and Built Environment, Queensland University of Technology, Brisbane, Australia
2. Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, United States
3. School of Civil Engineering, University of Newcastle, Callaghan, New South Wales, Australia
4. French Institute of Science and Technology for Transport (IFSTTAR), Laboratorie Seismes et Vibrations, Champs-sur-Marne, France