1. Associate Professor, School of Civil Engineering, Southwest Jiaotong Univ., Chengdu 610031, China (corresponding author).
2. Associate Professor, School of Civil Engineering, Southwest Jiaotong Univ., Chengdu 610031, China.
3. Assistant Professor, Dept. of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80403.
4. Professor, Research Center for Steel, Timber and Masonry, Karlsruher Institut für Technologie, Karlsruhe, D-76128, Germany.
5. Master’s Student, School of Civil Engineering, Southwest Jiaotong Univ., Chengdu 610031, China.