DOI QR코드

DOI QR Code

Hysteretic behaviors of pile foundation for railway bridges in loess

  • Chen, Xingchong (School of Civil Engineering, Lanzhou Jiaotong University) ;
  • Zhang, Xiyin (School of Civil Engineering, Lanzhou Jiaotong University) ;
  • Zhang, Yongliang (School of Civil Engineering, Lanzhou Jiaotong University) ;
  • Ding, Mingbo (School of Civil Engineering, Lanzhou Jiaotong University) ;
  • Wang, Yi (School of Civil Engineering, Lanzhou Jiaotong University)
  • Received : 2019.09.18
  • Accepted : 2020.01.29
  • Published : 2020.02.25

Abstract

Pile foundation is widely used for railway bridges in loess throughout northwestern China. Modeling of the loess-pile interaction is an essential part for seismic analysis of bridge with pile foundation at seismically active regions. A quasi-static test is carried out to investigate the hysteretic behaviors of pile foundation in collapsible loess. The failure characteristics of the bridge pile-loess system under the cyclic lateral loading are summarized. From the test results, the energy dissipation, stiffness degradation and ductility of the pile foundation in loess are analyzed. Therefore, a bilinear model with stiffness degradation is recommended for the nonlinearity of the bridge pier-pile-loess system. It can be found that the stiffness of the bridge pier-pile-loess system decreases quickly in the initial stage, and then becomes more slowly with the increase of the displacement ductility. The equivalent viscous damping ratio is defined as the ratio of the dissipated energy in one cycle of hysteresis curves and increases with the lateral displacement.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, China Postdoctoral Science Foundation

This research was supported by the National Natural Science Foundation of China (Grant No. 51808273 and No.51768036), Project funded by China Postdoctoral Science Foundation (Grant No. 2018M643767, for Xiyin Zhang), Tianyou Youth Talent Lift Program of Lanzhou Jiaotong University (Xiyin Zhang), and lzjtu (201801) EP support. On behalf of all authors, the corresponding author states that there is no conflict of interest.

References

  1. Ahmadi, H.R., Namdari, N., Cao, M. and Bayat, M. (2019), "Seismic investigation of pushover methods for concrete piers of curved bridges in plan", Comput. Concrete 23(1), 1-10. https://doi.org/10.12989/cac.2019.23.1.001.
  2. Bhowmik, T., Tan, K.H. and Balendra, T. (2017), "Lateral load-displacement response of low strength CFRP-confined capsule-shaped columns", Eng. Struct., 150, 64-75. https://doi.org/10.1016/j.engstruct.2017.07.037.
  3. Biswas, S., Manna, B. and Choudhary, S.S. (2013), "Prediction of nonlinear characteristics of soil-pile system under vertical vibration", Geomech. Eng., 5(3), 223-240. https://doi.org/10.12989/gae.2013.5.3.223.
  4. Cai, Y.X., Gould, P.L. and Desai, C.S. (2000), "Nonlinear analysis of 3D seismic interaction of soil-pile-structure systems and application", Eng. Struct., 22(2), 191-199. https://doi.org/10.1016/S0141-0296(98)00108-4.
  5. Chanda, D., Saha, R. and Haldar, S. (2019), "Influence of inherent soil variability on seismic response of structure supported on pile foundation", Arab. J. Sci. Eng., 44(5), 5009-5025. https://doi.org/10.1007/s13369-018-03699-1.
  6. Dehghanpoor, A., Thambiratnam, D., Chan, T., Taciroglu, E., Kouretzis, G. and Li, Z. (2019), "Coupled horizontal and vertical component analysis of strong ground motions for soil-pile-superstructure systems: Application to a bridge pier with soil-structure interaction", J. Earthq. Eng., 1-29. https://doi.org/10.1080/13632469.2019.1625829.
  7. Gao, X.J., Wang, J.C. and Zhu, X.R. (2007), "Static load test and load transfer mechanism study of squeezed branch and plate pile in collapsible loess foundation", J. Zhejiang Univ. Sci. A, 8(7), 1110-1117. https://doi.org/10.1631/jzus.2007.A1110.
  8. Gazetas, G., Tazoh, T., Shimizu, K. and Fan, K. (1993), "Seismic response of the pile foundation of Ohba-Ohashi bridge", Proceedings of the 3rd International Conference on Case Histories in Geotechnical Engineering, St. Louis, Missouri, U.S.A., June.
  9. Gerolymos, N., Drosos, V. and Gazetas, G. (2009), "Seismic response of single-column bent on pile: Evidence of beneficial role of pile and soil inelasticity", Bull. Earthq. Eng., 7(2), 547. https://doi.org/10.1007/s10518-009-9111-z.
  10. Grigoryan, A.A. (1991), "Construction on loess soils", Soil Mech. Found. Eng., 28(1), 44-49. https://doi.org/10.1007/BF02304644.
  11. Han, Q., Du, X., Zhou, Y. and Lee, G.C. (2013), "Experimental study of hollow rectangular bridge column performance under vertical and cyclically bilateral loads", Earthq. Eng. Eng. Vib., 12(3), 433-445. https://doi.org/10.1007/s11803-013-0184-y.
  12. Hutchinson, T.C., Chai, Y.H., Boulanger, R.W. and Idriss, I.M. (2004), "Inelastic seismic response of extended pile-shaft-supported bridge structures", Earthq. Spect., 20(4), 1057-1080. https://doi.org/10.1193%2F1.1811614. https://doi.org/10.1193/1.1811614
  13. Ingham, T.J., Rodriguez, S., Donikian, R. and Chan, J. (1999), "Seismic analysis of bridges with pile foundations", Comput. Struct., 72(1-3), 49-62. https://doi.org/10.1016/S0045-7949(99)00021-8.
  14. Ju, S.H. (2013), "Determination of scoured bridge natural frequencies with soil-structure interaction", Soil Dyn. Earthq. Eng., 55, 247-254. https://doi.org/10.1016/j.soildyn.2013.09.015.
  15. Kaynia, A.M. and Mahzooni, S. (1996), "Forces in pile foundations under seismic loading", J. Eng. Mech., 122(1), 46-53. https://doi.org/10.1061/(ASCE)0733-9399(1996)122:1(46).
  16. Kim, Y. and Choi, J. (2017), "Nonlinear numerical analyses of a pile-soil system under sinusoidal bedrock loadings verifying centrifuge model test results", Geomech. Eng., 12(2), 239-255. https://doi.org/10.12989/gae.2017.12.2.239.
  17. Liyanapathirana, D.S. and Poulos, H.G. (2005), "Pseudostatic approach for seismic analysis of piles in liquefying soil", J. Geotech. Geoenviron. Eng., 131(12),1480-1487. https://doi.org/10.1061/(ASCE)1090-0241(2005)131:12(1480).
  18. Maheshwari, B.K., Truman, K.Z., El Naggar, M.H. and Gould, P.L. (2004), "Three-dimensional nonlinear analysis for seismic soil-pile-structure interaction", Soil Dyn. Earthq. Eng., 24(4), 343-356. https://doi.org/10.1016/j.soildyn.2004.01.001.
  19. Makris, N., Badoni, D., Delis, E. and Gazetas, G. (1994), "Prediction of observed bridge response with soil-pile-structure interaction", J. Struct. Eng., 120(10), 2992-3011. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:10(2992).
  20. Mei, Y., Hu, C., Yuan, Y., Wang, X. and Zhao, N. (2016), "Experimental study on deformation and strength property of compacted loess", Geomech. Eng., 11(1), 161-175. https://doi.org/10.12989/gae.2016.11.1.161.
  21. Mylonakis, G. and Nikolaou, A. (1997), "Soil-pile-bridge seismic interaction: Kinematic and inertial effects. Part I: Soft soil", Earthq. Eng. Struct. Dyn., 26, 337-359. https://doi.org/10.1002/(SICI)1096-9845(199703)26:3%3C337::AID-EQE646%3E3.0.CO;2-D.
  22. Shi, J., Zhang, Y., Chen, L. and Fu, Z. (2018), "Response of a laterally loaded pile group due to cyclic loading in clay", Geomech. Eng., 16(5), 463-469. https://doi.org/10.12989/gae.2018.16.5.463.
  23. Taheri, A., Moghadam, A.S. and Tasnimi, A.A. (2017), "Critical factors in displacement ductility assessment of high-strength concrete columns", Int. J. Adv. Struct. Eng., 9(4), 325-340. https://doi.org/10.1007/s40091-017-0169-6.
  24. Toma Sabbagh, T., Al-Salih, O. and Al-Abboodi, I. (2019), "Experimental investigation of batter pile groups behaviour subjected to lateral soil movement in sand", Int. J. Geotech. Eng., 1-12. https://doi.org/10.1080/19386362.2019.1585596.
  25. Wang, L., Wu, Z., Xia, K., Liu, K., Wang, P., Pu, X. and Li, L. (2018), "Amplification of thickness and topography of loess deposit on seismic ground motion and its seismic design methods", Soil Dyn. Earthq. Eng., 126. https://doi.org/10.1016/j.soildyn.2018.02.021.
  26. Wang, X., Ye, A., He, Z. and Shang, Y. (2016), "Quasi-static cyclic testing of elevated RC pile-cap foundation for bridge structures", J. Bridge Eng., 21(2), 04015042. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000797.
  27. Yang, Z. and Jeremic, B. (2002), "Numerical analysis of pile behaviour under lateral loads in layered elastic-plastic soils", Int. J. Numer. Anal. Meth. Geomech., 26(14), 1385-1406. https://doi.org/10.1002/nag.250.
  28. Yang, Z. and Jeremic, B. (2005), "Study of soil layering effects on lateral loading behavior of piles", J. Geotech. Geoenviron. Eng., 131(6), 762-770. https://doi.org/10.1061/(ASCE)1090-0241(2005)131:6(762).
  29. Zhang, X.R. and Yang, Z.J. (2018), "Numerical analyses of pile performance in laterally spreading frozen ground crust overlying liquefiable soils", Earthq. Eng. Eng. Vib., 17(3), 491-499. https://doi.org/10.1007/s11803-018-0457-6.

Cited by

  1. Study on lateral behavior of digging well foundation with consideration of soil-foundation interaction vol.24, pp.1, 2021, https://doi.org/10.12989/gae.2021.24.1.015
  2. Experimental Study on Subgrade Performance of Collapsible Loess Mixed with Concrete Gravel vol.781, pp.2, 2020, https://doi.org/10.1088/1755-1315/781/2/022050