1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China
2. Engineering Research Center of Concrete Technology under Marine Environment, Ministry of Education, Qingdao 266520, China
3. Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
4. Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanjing 530004, China
5. Department of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taipei City 106, Taiwan