Structural Engineering and Mechanics

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A comprehensively overall track-bridge interaction study on multi-span simply supported beam bridges with longitudinal continuous ballastless slab track

  • Su, Miao (School of Civil Engineering, Changsha University of Science and Technology) ;
  • Yang, Yiyun (School of Civil Engineering, Changsha University of Science and Technology) ;
  • Pan, Rensheng (School of Civil Engineering, Changsha University of Science and Technology)
  • Received : 2020.05.12
  • Accepted : 2021.02.04
  • Published : 2021.04.25
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Abstract

Track-bridge interaction has become an essential part in the design of bridges and rails in terms of modern railways. As a unique ballastless slab track, the longitudinal continuous slab track (LCST) or referred to as the China railway track system Type-II (CRTS II) slab track, demonstrates a complex force mechanism. Therefore, a comprehensive track-bridge interaction study between multi-span simply supported beam bridges and the LCST is presented in this work. In specific, we have developed an integrated finite element model to investigate the overall interaction effects of the LCST-bridge system subjected to the actions of temperature changes, traffic loads, and braking forces. In that place, the deformation patterns of the track and bridge, and the distributions of longitudinal forces and the interfacial shear stress are studied. Our results show that the additional rail stress has been reduced under various loads and the rail's deformation has become much smoother after the transition of the two continuous structural layers of the LCST. However, the influence of the temperature difference of bridges is significant and cannot be ignored as this action can bend the bridge like the traffic load. The uniform temperature change causes the tensile stress of the concrete track structure and further induce cracks in them. Additionally, the influences of the friction coefficient of the sliding layer and the interfacial bond characteristics on the LCST's performance are discussed. The systematic study presented in this work may have some potential impacts on the understanding of the overall mechanical behavior of the LCST-bridge system.

Keywords

References

  1. ANSYS Inc. (2013), ANSYS Mechanical APDL Structural Analysis Guide, 275 Technology Drive Canonsburg, PA 15317, USA.
  2. Chen, Z., Xiao, J.L., Liu, X.K., Liu, X.Y., Yang, R.S. and Ren, J.J. (2018), "Effects of initial up-warp deformation on the stability of the CRTS II slab track at high temperatures", J. Zhejiang Univ.-Sci. A, 19(12), 939-950. https://doi.org/10.1631/jzus.A1800162.
  3. China Academy of Railway Sciences (2008), Summary of Design Principles and Methods for CRTS II Ballastless Track of Beijing-Tianjin Intercity Railway, Beijing.
  4. China State Railway Group (2013), Code for Design of Railway Continuous Welded Rail, TB10015-2012, China Railway Publishing House, Beijing.
  5. Dai, G.L., Ge, H., Liu, W.S. and Chen, Y.F. (2017), "Interaction analysis of Continuous Slab Track (CST) on long-span continuous high-speed rail bridges", Struct. Eng. Mech., 63(6), 713-723. https://doi.org/10.12989/sem.2017.63.6.713.
  6. Dai, G.L. and Su, M. (2016), "Full-scale field experimental investigation on the interfacial shear capacity of continuous slab track structure", Arch. Civil Mech. Eng., 16(3), 485-493. https://doi.org/10.1016/j.acme.2016.03.005.
  7. Dai, G.L., Su, M. and Chen, Y.F. (2016), "Design and construction of simple beam bridges for high-speed rails in China: Standardization and industrialization", Balt. J. Road. Bridge. Eng., 11(4), 274-282. https://doi.org/10.3846/bjrbe.2016.32.
  8. Feng, Y.L., Jiang, L.Z., Zhou, W.B., Lai, Z.P. and Chai, X.L. (2019), "An analytical solution to the mapping relationship between bridge structures vertical deformation and rail deformation of high-speed railway", Steel Compos. Struct., 33(2), 209-224. https://doi.org/10.12989/scs.2019.33.2.209.
  9. Freudenstein, S. (2010), "RHEDA 2000 (R): ballastless track systems for high-speed rail applications", Int. J. Pavem. Eng., 11(4), 293-300. https://doi.org/10.1080/10298431003749774.
  10. Freystein, H. (2010), "Track/Bridge-Interaction - State of the art and examples", Stahlbau, 79(3), 220-231. https://doi.org/10.1002/stab.201001299.
  11. Fryba, L. (1996), Dynamics of Railway Bridges, Telford.
  12. International Union of Railways (2001), Track/bridge Interaction, Recommendations for Calculations, UIC774-3-R, Paris.
  13. Jin, S. and Feng, H.D. (2020), "Reliability assessment of a curved heavy-haul railway track-bridge system", Struct. Infrastr. Eng., 16(3), 465-480. https://doi.org/10.1080/15732479.2019.1668435.
  14. Kang, C., Wenner, M. and Marx, S. (2020), "Background investigation on the permissible additional rail stresses due to track/bridge interaction", Eng. Struct., 228, 111505.. https://doi.org/10.1016/j.engstruct.2020.111505
  15. Lee, K.C., Jang, S.Y. and Lee, J. (2018), "Development of sliding slab track to reduce track-bridge interaction", ICRT 2017: Railway Development, Operations, and Maintenance, American Society of Civil Engineers, Reston, VA.
  16. Li, D., Bilow, D. and Sussmann, T. (2010), "Slab track for shared freight and high speed passenger service", Joint Rail Conference, 49064, January.
  17. Liu, X.Y., Zhao, P.R. and Dai, F. (2011), "Advances in design theories of high-speed railway ballastless tracks", J. Modern Tran., 19(3), 154-162. https://doi.org/10.1007/bf03325753.
  18. National Railway Administration (2005), Fundamental Code for Design on Railway Bridge and Culvert, TB10002.1-2005, China Railway Publishing House, Beijing.
  19. National Railway Administration (2015), Code for Design of High Speed Railway, TB10621-2014, China Railway Publishing House, Beijing.
  20. Rust, W. and Schweizerhof, K. (2003), "Finite element limit load analysis of thin-walled structures by ANSYS (implicit), LS-DYNA (explicit) and in combination", Thin Wall. Struct., 41(2-3), 227-244. https://doi.org/10.1016/s0263-8231(02)00089-7.
  21. Ryjacek, P. and Vokac, M. (2014), "Long-term monitoring of steel railway bridge interaction with continuous welded rail", J. Constr. Steel Res., 99, 176-186. https://doi.org/10.1016/j.jcsr.2014.04.009.
  22. Sestakova, J. (2015), "Quality of slab track construction - track alignment design and track geometry", Civil Environ. Eng., 11(1), 2-9. https://doi.org/10.1515/cee-2015-0001.
  23. Setoodeh, A.R., Tahani, M. and Selahi, E. (2012), "Transient dynamic and free vibration analysis of functionally graded truncated conical shells with non-uniform thickness subjected to mechanical shock loading", Compos. Part B-Eng., 43(5), 2161-2171. https://doi.org/10.1016/j.compositesb.2012.02.031.
  24. Shi, Y.Y., Pan, P. and Ouyang, Y. (2013), Experimental Study on Stiffness and Strength of Ballastless Track Slabs, Trans Tech Publications Ltd., Durnten-Zurich.
  25. Su, M., Dai, G.L., Marx, S., Liu, W.S. and Zhang, S.S. (2019), "A brief review of developments and challenges for high-speed rail bridges in China and Germany", Struct. Eng. Int., 29(1), 160-166. https://doi.org/10.1080/10168664.2018.1456892.
  26. Su, M., Dai, G.L. and Peng, H. (2020), "Bond-slip constitutive model of concrete to cement-asphalt mortar interface for slab track structure", Struct. Eng. Mech., 74(5), 589-600. https://doi.org/10.12989/sem.2020.74.5.589.
  27. Su, M., Wang, J., Peng, H., Cai, C.S. and Dai, G. (2020), "State-of-the-art review of the development and application of bridge rotation construction methods in China", Sci. China Technol. Sci., 1-16. https://doi.org/10.1007/s11431-020-1704-1.
  28. Sun, L., Chen, L.L. and Zelelew, H.H. (2013), "Stress and deflection parametric study of high-speed railway CRTS-II ballastless track slab on elevated bridge foundations", J. Tran. Eng., 139(12), 1224-1234. https://doi.org/10.1061/(asce)te.1943-5436.0000577.
  29. Wenner, M., Lippert, P., Plica, S. and Marx, S. (2016), "Track-bridge-interaction - Part 1: historical development and model", Bautechnik, 93(2), 59-66. https://doi.org/10.1002/bate.201500107.
  30. Yan, B., Liu, S., Pu, H., Dai, G.L. and Cai, X.P. (2017), "Elastic-plastic seismic response of CRTS II slab ballastless track system on high-speed railway bridges", Sci. China-Technol. Sci., 60(6), 865-871. https://doi.org/10.1007/s11431-016-0222-6.
  31. Zeng, Z.P., He, X.F., Zhao, Y.G., Yu, Z.W., Chen, L.K., Xu, W.T. and Lou, P. (2015), "Random vibration analysis of train-slab track-bridge coupling system under earthquakes", Struct. Eng. Mech., 54(5), 1017-1044. https://doi.org/10.12989/sem.2015.54.5.1017.
  32. Zhang, J., Wu, D.J., Li, Q. and Zhang, Y. (2019), "Experimental and numerical investigation of track-bridge interaction for a long-span bridge", Struct. Eng. Mech., 70(6), 723-735. https://doi.org/10.12989/sem.2019.70.6.723.
  33. Zhang, N., Zhou, S., Xia, H. and Sun, L. (2014), "Evaluation of vehicle-track-bridge interacted system for the continuous CRTS-II non-ballast track slab", Sci. China-Technol. Sci., 57(10), 1895-1901. https://doi.org/10.1007/s11431-014-5637-7.
  34. Zhang, Y.R., Wu, K., Gao, L., Yan, S. and Cai, X.P. (2019), "Study on the interlayer debonding and its effects on the mechanical properties of CRTS II slab track based on viscoelastic theory", Constr. Build. Mater., 224, 387-407. https://doi.org/10.1016/j.conbuildmat.2019.07.089.
  35. Zhao, L. (2015), "Spatial refinement analysis method of high speed railway ballastless track and its application research", Beijing Jiaotong University.
  36. Zhou, L.Y., Yang, L.Q., Shan, Z., Peng, X.S. and Mahunon, A.D. (2019), "Investigation of the fatigue behaviour of a ballastless slab track-bridge structural system under train load", Appl. Sci.- Basel, 9(17). https://doi.org/10.3390/app9173625.