Performance analysis of slab track structures on long-span high-speed railway bridge

  • Yu Ding School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Tao Xin School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China Beijing Key Laboratory of Track Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Pengsong Wang School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Hailong Huo School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Peng Chen Beijing Urban Construction Design & Development Group Co., Ltd., Beijing 100037, China
Keywords: Long-span bridg, slab track, stress analysis, rubber mat, design, maintenance

Abstract

Long-span railway bridges tend to bear large deformation under complex loads. The performance of slab track structures on the long-span bridge is not clear. To research the performance, a FE model is established. The most unfavourable upward and downward deformation of the bridge under complex loads are considered. The stresses of the slab, self-compacting concrete, and base slab are calculated and analysed. Curvature of bridge deformation under the most unfavourable condition is calculated. The relationship of track stress and bridge deformation curvature is discussed. To reduce the stress of the slab track
structure, a rubber mat is designed to be installed between track structures. The results can be used as a reference for railway track design and maintenance workers.

References

N. Hu, G.-L. Dai, B. Yan, and K. Liu, (2014), Recent

development of design and construction of medium and long span

high-speed railway bridges in China. Engineering Structures, Vol.

, 233-241.

S. Qin and Z. Gao, (2017), Developments and Prospects of Long-

Span High-Speed Railway Bridge Technologies in China.

Engineering, Vol. 3, issue 6, 787-794.

K. Serdelov√° and J. Vi..an, (2015), Analysis and Design of Steel

Bridges with Ballastless Track. Procedia Engineering, Vol. 111,

-708.

Published
2019-08-27
Section
Articles