1. Associate Professor, College of Civil Engineering, Fuzhou Univ., No. 2, Wulong River North Rd., University Town, Fuzhou, Fujian 350108, China (corresponding author).
2. Professor, College of Civil Engineering, Fuzhou Univ., No. 2, Wulong River North Rd., University Town, Fuzhou, Fujian 350108, China.
3. Postdoctoral Student, College of Civil Engineering, Fuzhou Univ., No. 2, Wulong River North Rd., University Town, Fuzhou, Fujian 350108, China.
4. Ph.D. Student, College of Civil Engineering, Fuzhou Univ., No. 2, Wulong River North Rd., University Town, Fuzhou, Fujian 350108, China.
5. Professor, Dept. of Civil and Environmental Engineering, Nagasaki Univ., 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan.