Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Interface slip of post-tensioned concrete beams with stage construction: Experimental and FE study

  • Received : 2019.03.15
  • Accepted : 2019.06.20
  • Published : 2019.08.25
⟨ Previous Next ⟩

Abstract

This study presents experimental and numerical results of prestressed concrete composite beams with different casting and stressing sequence. The beams were tested under three-point bending and it was found that prestressed concrete composite beams could not achieve monolith behavior due to interface slippage between two layers. The initial stress distribution due to different construction sequence has little effect on the maximum load of composite beams. The multi-step FE analyses could simulate different casting and stressing sequence thus correctly capturing the initial stress distribution induced by staged construction. Three contact algorithms were considered for interaction between concrete layers in the FE models namely tie constraint, cohesive contact and surface-to-surface contact. It was found that both cohesive contact and surface-to-surface contact could simulate the interface slip even though each algorithm considers different shear transfer mechanism. The use of surface-to-surface contact for beams with more than 2 layers of concrete is not recommended as it underestimates the maximum load in this study.

Keywords

References

  1. Abdelatif, A.O., Owen, J.S. and Hussein, M.F.M. (2015), "Modelling the prestress transfer in pre-tensioned concrete elements", Finite Elem. Anal. Des., 94, 47-63. https://doi.org/10.1016/j.finel.2014.09.007.
  2. Adawi, A., Youssef, M.A. and Meshaly, M.E. (2015), "Experimental investigation of the composite action between hollowcore slabs with machine-cast finish and concrete topping", Eng. Struct., 91, 1-15. https://doi.org/10.1016/j.engstruct.2015.02.018.
  3. Adawi, A., Youssef, M.A. and Meshaly, M.E. (2016), "Finite element modeling of the composite action between hollowcore slabs and the topping concrete", Eng. Struct., 124, 302-315. https://doi.org/10.1016/j.engstruct.2016.06.016.
  4. Baran, E. (2015), "Effects of cast-in-place concrete topping on flexural response of precast concrete hollow-core slabs", Eng. Struct., 98, 109-117. https://doi.org/10.1016/j.engstruct.2015.04.017.
  5. Costa, H., Carmo, R.N.F. and Julio, E. (2018), "Influence of lightweight aggregates concrete on the bond strength of concrete-to-concrete interfaces", Constr. Build. Mater., 180, 519-530. https://doi.org/10.1016/j.conbuildmat.2018.06.011.
  6. Dassault Systemes (2016), Abaqus User Manual.
  7. Dias-da-Costa, D., Alfaiate, J. and Julio, E.N.B.S. (2012), "FE modeling of the interfacial behaviour of composite concrete members", Constr. Build. Mater., 26(1), 233-243. https://doi.org/10.1016/j.conbuildmat.2011.06.015.
  8. Fang, Z., Jiang, H., Liu, A., Feng, J. and Chen Y. (2018), "Horizontal shear behaviors of normal weight and lightweight concrete composite T-beams", Int. J. Concrete Struct. Mater., 12(1), 55. https://doi.org/10.1186/s40069-018-0274-3.
  9. Fernandes, H., Lucio, V. and Ramos, A. (2017), "Strengthening of RC slabs with reinforced concrete overlay on the tensile face", Eng. Struct., 132, 540-550. https://doi.org/10.1016/j.engstruct.2016.10.011.
  10. fib (2013), fib Model Code for Concrete Structures 2010, federation internationale du beton.
  11. Halicka, A. (2011), "Influence new-to-old concrete interface qualities on the behaviour of support zones of composite concrete beams", Constr. Build. Mater., 25(10), 4072-4078. https://doi.org/10.1016/j.conbuildmat.2011.04.045.
  12. He, Y., Zhang, X., Hooton, R.D. and Zhang, X. (2017), "Effects of interface roughness and interface adhesion on new-to-old concrete bonding", Constr. Build. Mater., 151, 582-590. https://doi.org/10.1016/j.conbuildmat.2017.05.049.
  13. Jiang, H., Fang, Z., Liu, A., Li, Y. and Feng, J. (2016), "Interface shear behavior between high-strength precast girders and lightweight cast-in-place slabs", Constr. Build. Mater., 128, 449-460. https://doi.org/10.1016/j.conbuildmat.2016.10.088.
  14. Julio, E.N.B.S., Dias-da-Costa, D., Branco, F.A.B. and Alfaiate, J.M.V. (2010), "Accuracy of design code expressions for estimating longitudinal shear strength of strengthening concrete overlays", Eng. Struct., 32(8), 2387-2393. https://doi.org/10.1016/j.engstruct.2010.04.013.
  15. Kim, J.R. and Kwak, H.G. (2018), "FE analyses and prediction of bursting forces in post-tensioned anchorage zone", Comput. Concrete, 21(1), 75-85. https://doi.org/10.12989/cac.2018.21.1.075.
  16. Kim, U., Huang, Y., Chakrabarti, P.R. and Kang, T.H.K. (2014), "Modeling of post-tensioned one-way and two-way slabs with unbonded tendons", Comput. Concrete, 13(5), 587-601. https://doi.org/10.12989/cac.2014.13.5.587.
  17. Kwak, H.G. and Hwang, J.W. (2010), "FE model to simulate bond-slip behavior in composite concrete beam bridges", Comput. Struct., 88(17), 973-984. https://doi.org/10.1016/j.compstruc.2010.05.005.
  18. Kwak, H.G., Kim, J.H. and Kim, S.H. (2006), "Nonlinear analysis of prestressed concrete structures considering slip behavior of tendons", Comput. Concrete, 3(1), 43-64. http://dx.doi.org/10.12989/cac.2006.3.1.043.
  19. Lesley, H., Sneed, K.K., Samantha, W. and Donald, M. (2016), "Interface shear transfer of lightweight-aggregate concretes with different lightweight aggregates", PCI J., 61(2), 38-55. https://doi.org/10.15554/pcij.03012016.38.55
  20. Loov, R.E. and Patnaik, A.K. (1994), "Horizontal shear strength of composite concrete beams with a rough interface", PCI J., 39(1), 48-69. https://doi.org/10.15554/pcij.01011994.48.69
  21. Mohamad, M.E., Ibrahim, I.S., Abdullah, R., Rahman, A.B., Abd., Kueh, A.B.H. and Usman, J. (2015), "Friction and cohesion coefficients of composite concrete-to-concrete bond", Cement Concrete Compos., 56, 1-14. https://doi.org/10.1016/j.cemconcomp.2014.10.003.
  22. Mones, R.M. and Brena, S.F. (2013), "Hollow-core slabs with cast-in-place concrete toppings: A study of interfacial shear strength", PCI J., 58(3), 124-141. https://doi.org/10.15554/pcij.06012013.124.141
  23. Navarro, M., Ivorra, S. and Varona, F.B. (2018), "Parametric computational analysis for punching shear in RC slabs", Eng. Struct., 165, 254-263. https://doi.org/10.1016/j.engstruct.2018.03.035.
  24. Patnaik, A.K. (2001), "Behavior of composite concrete beams with smooth interface", J. Struct. Eng., 127(4), 359-366. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:4(359).
  25. Ren, W., Sneed, L.H., Yang, Y. and He, R. (2015), "Numerical simulation of prestressed precast concrete bridge deck panels using damage plasticity model", Int. J. Concrete Struct. Mater., 9(1), 45-54. https://doi.org/10.1007/s40069-014-0091-2.
  26. Seible, F. and Latham, C.T. (1990), "Horizontal load transfer in structural concrete bridge deck overlays", J. Struct. Eng., 116(10), 2691-2710. https://doi.org/10.1061/(ASCE)0733-9445(1990)116:10(2691).
  27. Standardization, E.C.F. (2005), Eurocode 2: Design of Concrete Structures.
  28. Tsioulou, O.T., Lampropoulos, A.P. and Dritsos, S.E. (2013), "Experimental investigation of interface behaviour of RC beams strengthened with concrete layers", Constr. Build. Mater., 40, 50-59. https://doi.org/10.1016/j.conbuildmat.2012.09.093.
  29. Wosatko, A., Pamin, J. and Polak M.A. (2015), "Application of damage-plasticity models in finite element analysis of punching shear", Comput. Struct., 151, 73-85. https://doi.org/10.1016/j.compstruc.2015.01.008.
  30. Yin, H., Teo, W. and Shirai, K. (2017), "Experimental investigation on the behaviour of reinforced concrete slabs strengthened with ultra-high performance concrete", Constr. Build. Mater., 155, 463-474. https://doi.org/10.1016/j.conbuildmat.2017.08.077.