1. Associate Professor, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, National Prestress Engineering Research Center, Southeast Univ., Nanjing 211189, China.
2. Graduate Student, School of Civil Engineering, Southeast Univ., Nanjing 211189, China.
3. Director, Creative Design Engineering Lab, Div. of Industrial Design, School of Engineering, Univ. of Liverpool, London EC2A 1AG, UK.
4. Professor, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, National Prestress Engineering Research Center, Southeast Univ., Nanjing 211189, China (corresponding author).