1. Director and Research Professor, Bridge Engineering Software and Technology (BEST) Center, Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742 (corresponding author). E-mail: ccfu@umd.edu
2. Professor and Chairman, Dept. of Bridge Engineering, College of Civil Engineering, Nanjing Univ. of Technology, Nanjing 210009, China; formerly, Visiting Professor, BEST Center, Univ. of Maryland, College Park, MD 20742.