1School of Civil Engineering, Qingdao University of Technology, Qingdao, China
2College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China
3Centre for Infrastructure Monitoring and Protection, School of Civil and Mechanical Engineering, Curtin University, Kent Street, Bentley, WA 6102, Australia
4Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada
5Department of Structural Engineering, University of California, San Diego, USA
6School of Civil Engineering, Harbin Institute of Technology, Harbin, China
7Earth Mechanics Inc., California, USA