1. School of Civil Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
2. Department of Civil and Environmental Engineering, National University of Singapore, Singapore
3. Anhui Engineering Laboratory for Infrastructural Safety Inspection and Monitoring, Hefei 230009, Anhui, China
4. Engineering Research Center of Safety-Critical Industrial Measurement and Control Technology of the Ministry of Education, Hefei 230009, Anhui, China