1. Professorate Senior Engineer, Research Center, Shenzhen Municipal Engineering Design and Research Institute Co. Ltd, No. 3007 West Sungang Rd., Shenzhen 518029, China (corresponding author).
2. Professor, Dept. of Civil Engineering, Univ. of Hong Kong, Pokfulam Rd., Hong Kong, China.
3. Engineer, Research Center, Shenzhen Municipal Engineering Design and Research Institute Co. Ltd, No. 3007 West Sungang Rd., Shenzhen 518029, China.