1. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
2. Department of Civil Engineering, Hangzhou City University, Hangzhou 310015, China
3. Faculty of Civil and Environmental Engineering, Ruhr Universität Bochum, Bochum 44780, Germany
4. College of Civil and Transportation Engineering, Hohai University, Nanjing 210024, China