1. State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang 330013, China
2. Key Laboratory of Safety Control of Bridge Engineering, Ministry of Education, Changsha University of Science & Technology, Changsha 410114, China
3. CCCC Highway Consultants Co., Ltd., Beijing 100010, China
4. School of Civil Engineering, Hunan City University, Yiyang 413000, China