1. Professor, School of Civil Engineering and Architecture, Changsha Univ. of Science and Technology, Changsha 410114, China (corresponding author).
2. Master Student, School of Civil Engineering and Architecture, Changsha Univ. of Science and Technology, Changsha 410114, China.
3. Professor and Head, Institute for Risk and Reliability, Leibniz Universität Hannover, 30167 Hannover, Germany; Professor, Univ. of Liverpool, Liverpool L69 7ZF, U.K.
4. Professor, School of Civil Engineering and Architecture, Changsha Univ. of Science and Technology, Changsha 410114, China.