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Low-cycle fatigue in steel H-piles of integral bridges; a comparative study of experimental testing and finite element simulation

  • Received : 2019.05.10
  • Accepted : 2019.10.15
  • Published : 2020.01.10
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Abstract

Integral abutment bridges (IABs) are those bridges without expansion joints. A single row of steel H-piles (SHPs) is commonly used at the thin and stub abutments of IABs to form a flexible support system at the bridge ends to accommodate thermal-induced displacement of the bridge. Consequently, as the IAB expands and contracts due to temperature variations, the SHPs supporting the abutments are subjected to cyclic lateral (longitudinal) displacements, which may eventually lead to low-cycle fatigue (LCF) failure of the piles. In this paper, the potential of using finite element (FE) modeling techniques to estimate the LCF life of SHPs commonly used in IABs is investigated. For this purpose, first, experimental tests are conducted on several SHP specimens to determine their LCF life under thermal-induced cyclic flexural strains. In the experimental tests, the specimens are subjected to longitudinal displacements (or flexural strain cycles) with various amplitudes in the absence and presence of a typical axial load. Next, nonlinear FE models of the tested SHP specimens are developed using the computer program ANSYS to investigate the possibility of using such numerical models to predict the LCF life of SHPs commonly used in IABs. The comparison of FE analysis results with the experimental test results revealed that the FE analysis results are in close agreement with the experimental test results. Thus, FE modeling techniques similar to that used in this research study may be used to predict the LCF life of SHP commonly used in IABs.

Keywords

References

  1. AASHTO (2017), LRFD Bridge Design Specification
  2. ANSYS (1998), ANSYS, Inc., Canonsburg, Pennsylvania.
  3. Arsoy, S., Duncan, J.M. and Barker, R.M. (2001), Experimental and Analytical Investigations of Piles and Abutments of Integral Bridges, Contract Report, Department of Civil and Environmental Engineering Virginia Polytechnic Institute and State University.
  4. ASTM (2005), Standard Test Methods for Tension Testing of Metallic Materials.
  5. Azamfar, M. and Moshrefifar, M. (2014), "Moshrefifar and Azamfar method, a new cycle counting method for evaluating fatigue life", Int. J. Fatigue; 69, 2-15. https://doi.org/10.1016/j.ijfatigue.2014.03.020.
  6. Chocichien Voraniti (2004), The Behavior and Design of Piles for Integral Abutment Bridges, Ph.D thesis.
  7. Coffin, L.F. (1954), "A study of the effects of cyclic thermal stresses on a ductile metal", T. Am. Soc. Mech. Eng., 931-950.
  8. Dicleli, M. (2000), "A rational design approach for prestressedconcrete-girder integral bridges", Eng. Struct., 22(3), 230-245. https://doi.org/10.1016/S0141-0296(98)00080-7.
  9. Dicleli, M. and Albhaisi, S.M. (2004), "Effect of cyclic thermal loading on the performance of steel H-Piles in integral bridges with stub-abutments", J. Constr. Steel Res.; 60(2):161-182. https://doi.org/10.1016/j.jcsr.2003.09.003.
  10. Dicleli, M. and Calik, E.E. (2008), "Physical theory hysteretic model for steel braces", J. Struct. Eng. ASCE, 134(7), 1215-1228. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:7(1215).
  11. French, C., Huang, J. and Shield, C. (2004), Behavior of Concrete Integral Abutment Bridges, Final Report.
  12. Frosch, R.J., Chovichien, V., Durbin, K. and Fedroff, D. (2006), Jointless and Smoother Bridges: Behavior and Design of Piles, Joint Transportation Research Program Technical Report Series.
  13. Haliburton, T.A. (1971), Soil structure interaction; numerical analysis of beams and beam columns, Technical Publication No. 14, School of Civil Engineering, Oklahoma State University, Stillwater, Oklahoma.
  14. Hallmark, R. (2006), Low Cycle Fatigue of Steel Piles in Integral Abutment Bridges, Master Thesis.
  15. Huang, J., French, C. and Shield, C. (2004), Behavior of concrete integral abutment bridges., Final Report. Minnesota Department of Transportation, Research Service Section.
  16. Kadhim, M.M.A. (2012), Factors effect on the effective length in a double strap joint between steel plates and CFRP, Vol.1, 11-18.
  17. Kamil, J.A. Khan, I.A. and Nath, Y. (2011), Numerical and Experimental Dynamic Contact of Rotating Spur Gear, Vol. 5, 254-263.
  18. Karalar, M. and Dicleli, M. (2016), "Effect of thermal induced flexural strain cycles on the low cycle fatigue performance of integral bridge steel H-piles", Eng. Struct., 124, 388-404. https://doi.org/10.1016/j.engstruct.2016.06.031.
  19. Karalar, M. and Dicleli, M. (in-print) "Fatigue in jointless bridge H-piles under axial load and thermal movements", J, Constr, Steel Res..
  20. Karthigeyan, S., Ramakrishna, T and Karpurapu, R. (2006), "Influence of vertical load on the lateral response of piles in sand", Comput. Geotechnics, 33(2), 121-131. https://doi.org/10.1016/j.compgeo.2005.12.002.
  21. Khodair, Y.A. and Hassiotis, S. (2005), "Analysis of soil-pile interaction in integral abutment", Comput. Geotechnics, 32(3), 201-209. https://doi.org/10.1016/j.compgeo.2005.01.005.
  22. Khodair, Y.A. and Hassiotis, S. (2013), "Numerical and experimental analyses of an integral bridge", Int. J. Adv. Struct. Eng., 5, 14. https://doi.org/10.1186/2008-6695-5-14
  23. Manson, S.S. (1954), Behavior of Materials Under Conditions of Thermal Stress. National Advisory Commission on Aeronautics: Report 1170, Cleveland, Lewis Flight Propulsion Laboratory.
  24. Razmia, J., Ladanib, L. and Aggoura, S.M. (2014), "Finite element simulation of pile behavior under thermo-mechanical loading in integral abutment bridges", Struct. Infrastruct. Eng., 10(5), 643-665. https://doi.org/10.1080/15732479.2012.757794
  25. SAP2000 (2016), Integrated finite element analysis and design of structures. Computers and Structures Inc., Berkeley, California.
  26. Stephens, R.I., Fatemi, A., Stephens, R.R. and Fuchs, H.O. (2000), Metal Fatigue in Engineering.
  27. Suresh, S. (2004), Fatigue of Materials, Cambridge University Press.
  28. Virdi, K.S., Matthews, R.S., Clarke, J.L. and Garas, F.K. (2000), Abnormal Loading on Structures: Experimental and Numerical Modelling, E & FN Spon, London.
  29. Wiss, J. (2002), Synthesis of Technical Information for Jointless Bridge Construction, Technical Report, Elstner Associates, Inc., State of Vermont Agency of Transportation, 25-36, June.
  30. Xiao, Y. and Chen, L. (2013), "Behavior of model steel H-pile-tocap connections", J. Constr. Steel Res., 80, 153-162. https://doi.org/10.1016/j.jcsr.2012.09.008.
  31. Xiao, Y., Wu, H., Yaprak, T.T., Martin, G.R. and Mander J.B. (2006), "Experimental studies on seismic behavior of steel pile to pile cap connections", J. Bridge Eng., 11(2), https://doi.org/10.1061/(ASCE)1084-0702(2006)11:2(151).