1. Assistant Researcher, Dept. of Bridge Engineering, Southwest Jiaotong Univ., 111 Section of the Northbound 1, Second Ring Rd., Chengdu 610031, China (corresponding author).
2. Professor, Dept. of Bridge Engineering, Southwest Jiaotong Univ., 111 Section of the Northbound 1, Second Ring Rd., Chengdu 610031, China.
3. Professor, Zhejiang Provincial Institute of Communications Planning Design & Research, 89 Huanchengxi Rd., Hangzhou 310006, China.
4. Assistant Researcher, Dept. of Bridge Engineering, Southwest Jiaotong Univ., 111 Section of the Northbound 1, Second Ring Rd., Chengdu 610031, China.