[1] College of Civil Engineering, Hunan University, Changsha,410082, China
[2] School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang,330013, China
[3] Key Laboratory for Damage Diagnosis of Engineering Structures of Hunan Province (Hunan University), Hunan, Changsha,410082, China
[4] Department of Bridge Engineering, Tongji University, 1239 Siping Rd, Shanghai,200092, China