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논문 기본 정보

자료유형
학술저널
저자정보
Hongye Gou (Southwest Jiaotong University) Longcheng Yang (Southwest Jiaotong University) Dan Leng (Southwest Jiaotong University) Yi Bao (University of Michigan) Qianhui Pu (Southwest Jiaotong University)
저널정보
국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.29 No.2
발행연도
2018.1
수록면
219 - 229 (11page)

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This paper presents an analytical model to analyze the mapping relationship between bridge lateral deformation and track geometry of high-speed railway. Based on the rail deformation mechanisms, the deformation of track slab and rail at the locations of fasteners are analyzed. Formulae of rail lateral deformation are derived and validated against a finite element model. Based on the analytical model, a rail deformation extension coefficient is presented, and effects of different lateral deformations on track geometry are evaluated. Parametric studies are conducted to evaluate the effects of the deformation amplitude, fastener stiffness and mortar layer stiffness on the rail deformation. The rail deformation increases with the deformation of the girder, and is dependent on the spacing of the fasteners, the elastic modulus of the rail's material, and the moment of inertia of the rail's section.

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