1. Professor, School of Civil Engineering and Architecture, Wuhan Univ. of Technology, 122 Luoshi Rd., Wuhan 430070, P. R. China.
2. Graduate, School of Civil Engineering and Architecture, Wuhan Univ. of Technology, 122 Luoshi Rd., Wuhan 430070, P. R. China.
3. Lecture, College of Civil Engineering, Henan Univ. of Technology, 100 Lianhua Rd., Zhengzhou, 450000, P. R. China, formerly, Assistant Researcher, School of Civil Engineering and Architecture, Wuhan Univ. of Technology, 122 Luoshi Rd., Wuhan 430070, P. R. China (corresponding author).