1. Lecturer, School of Civil Engineering, Southwest Jiaotong Univ., Chengdu 610031, China; and Institute for Rehabilitation of Buildings and Structures, Univ. of Braunschweig, 38106 Braunschweig, Germany (corresponding author).
2. Ph.D. Student, Institute for Rehabilitation of Buildings and Structures, Univ. of Braunschweig, 38106 Braunschweig, Germany.
3. Professor, Research Center for Steel, Timber and Masonry, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany.
4. Professor, School of Civil Engineering, Southwest Jiaotong Univ., Chengdu 610031, China.