Computers and Concrete

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Computer aided failure prediction of reinforced concrete beam

  • Islam, A.B.M. Saiful (Department of Civil & Construction Engineering, Imam Abdulrahman Bin Faisal University)
  • Received : 2019.05.17
  • Accepted : 2020.01.10
  • Published : 2020.01.25
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Abstract

Traditionally used analytical approach to predict the fatigue failure of reinforced concrete (RC) structure is generally conservative and has certain limitations. The nonlinear finite element method (FEM) offers less expensive solution for fatigue analysis with sufficient accuracy. However, the conventional implicit dynamic analysis is very expensive for high level computation. Whereas, an explicit dynamic analysis approach offers a computationally operative modelling to predict true responses of a structural element under periodic loading and might be perfectly matched to accomplish long life fatigue computations. Hence, this study simulates the fatigue behaviour of RC beams with finite element (FE) assemblage presenting a simplified explicit dynamic numerical solution to show computer aided fatigue behaviour of RC beam. A commercial FEM package, ABAQUS has been chosen for this complex modelling. The concrete has been modelled as a 8-node solid element providing competent compression hardening and tension stiffening. The steel reinforcements are simulated as two-node truss elements comprising elasto-plastic stress-strain behaviour. All the possible nonlinearities are duly incorporated. Time domain analysis has been adopted through an automatic Newmark-β time incremental technique. The program consists of twelve RC beams to visualize the real behaviour during fatigue process and to obtain the reliability of the study. Both the numerical and experimental results indicate a redistribution of stresses along the time and damage accumulation of beam which severely affect the serviceability and ultimate capacity of RC beam. The output of the FEM analysis demonstrates good match with the experimental consequences which affirm the efficacy of the computer aided model. The controlled fatigue damage evolution at service fatigue load limits makes the FE model an efficient tool in predicting high cycle fatigue behaviour of RC structures.

Keywords

References

  1. A615M-14, A.A. (2014), Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement.
  2. ACI. (1992), Considerations for design of concrete structures subjected to fatigue loading. ACI Committee 215R-92(Detroit).
  3. Al-Rousan, R. and Issa, M. (2011), "Fatigue performance of reinforced concrete beams strengthened with CFRP sheets", Constr. Build. Mater., 25(8), 3520-3529. https://doi.org/10.1016/j.conbuildmat.2011.03.045.
  4. Aslani, F. and Jowkarmeimandi, R. (2012), "Stress-strain model for concrete under cyclic loading", Mag. Concrete Res., 64(8), 673-685. http://dx.doi.org/10.1680/macr.11.00120.
  5. ASTM. (2014), "Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens ASTM C39/C39M-14", American Society for Testing and Materials (ASTM) International, USA.
  6. Badawi, M. and Soudki, K. (2009), "Fatigue behavior of RC beams strengthened with NSM CFRP rods", J. Compos. Constr., 13(5), 415-421. https://doi.org/10.1061/(ASCE)1090-0268(2009)13:5(415).
  7. Barros, J.A., Baghi, H., Dias, S.J. and Ventura-Gouveia, A. (2013), "A FEM-based model to predict the behaviour of RC beams shear strengthened according to the NSM technique", Eng. Struct., 56, 1192-1206. https://doi.org/10.1016/j.engstruct.2013.06.034.
  8. Committee, A. (2011), Building Code Requirements for Structural Concrete (318-11) and Commentary-(318R-11), Detroit Mich. Am. Concr. Inst.
  9. Desayi, P. and Krishnan, S. (1964), "Equation for the stress-strain curve of concrete", ACI J. Proc., 61(3), 345-350.
  10. EN, B. (2009), 12390-3: 2009 Testing Hardened Concrete. Making and Curing Specimens for Strength Tests, ISBN, 940137696.
  11. EN, B. (2009), 12390-5:2009, Flexural Strength of Test Specimens, Testing Hardened Concrete, 1-14.
  12. Hawileh, R.A. (2012), "Nonlinear finite element modeling of RC beams strengthened with NSM FRP rods", Constr. Build. Mater., 27(1), 461-471. https://doi.org/10.1016/j.conbuildmat.2011.07.018.
  13. Helagson, T. and Hanson, J.M. (1974), "Investigation of design factors affecting fatigue strength of reinforcing bars-statistical analysis", ACI Spec. Publ., 41, 107-138.
  14. Hibbitt, K. (2007), ABAQUS Version 6. 7: Theory Manual, Users' Manual, Verification Manual and Example Problems Manual: Hibbitt, Karlson and Sorenson Inc.
  15. Hu, H.T., Lin, F.M. and Jan, Y.Y. (2004), "Nonlinear finite element analysis of reinforced concrete beams strengthened by fiber-reinforced plastics", Compos. Struct., 63(3), 271-281. https://doi.org/10.1016/S0263-8223(03)00174-0.
  16. Hu, H.T. and Schnobrich, W.C. (1989), "Constitutive modeling of concrete by using nonassociated plasticity", J. Mater. Civil Eng., 1(4), 199-216. https://doi.org/10.1061/(ASCE)0899-1561(1989)1:4(199).
  17. Huda, M.N., Jumat, M.Z.B., Islam, A.B.M.S., Darain, K.M., Obaydullah, M. and Hosen, M.A. (2017), "Palm oil industry's bi-products as coarse aggregate in structural lightweight concrete", Comput. Concrete, 19(5), 515-526. https://doi.org/10.12989/cac.2017.19.5.515.
  18. Islam, A.B.M.S., Hussain, R.R., Jumaat, M.Z. and Darain, K.M. (2014), "Implication of rubber-steel bearing nonlinear models on soft storey structures", Comput. Concrete, 13(5), 603-619. http://dx.doi.org/10.12989/cac.2014.13.5.603.
  19. Islam, A.B.M.S., Jumaat, M.Z., Hussain, R.R., Hosen, M.A. and Huda, M.N. (2015), "Incorporation preference for rubber-steel bearing isolation in retrofitting existing multi storied building", Comput. Concrete, 16(4), 503-529. http://dx.doi.org/10.12989/cac.2015.16.4.503.
  20. Kupfer, H., Hilsdorf, H. K. and Rusch, H. (1969), "Behavior of concrete under biaxial stresses", ACI J. Proc., 66(8), 656-666.
  21. Maekawa, K., Okamura, H. and Pimanmas, A. (2003), Non-linear Mechanics of Reinforced Concrete, CRC Press.
  22. Moss, D.S. (1982). Bending Fatigue of High-yield Reinforcing Bars in Concrete, TRRL Supplementary Rep. No. 748.
  23. Nilson, A.H. (1982), "State-of-the-art report on finite element analysis of reinforced concrete", American Society of Civil Engineers: Task Committee on Finite Element Analysis of Reinforced Concrete Structures of the Structural Division Committee on Concrete and Masonry Structures, ASCE, New York, NY.
  24. Omran, H.Y. and El-Hacha, R. (2012), "Nonlinear 3D finite element modeling of RC beams strengthened with prestressed NSM-CFRP strips", Constr. Build. Mater., 31, 74-85. https://doi.org/10.1016/j.conbuildmat.2011.12.054.
  25. Rahman, M.M., Jumaat, M.Z. and Islam, A.B.M.S. (2017). Weight minimum design of concrete beam strengthened with glass fiber reinforced polymer bar using genetic algorithm", Comput. Concrete, 19(2), 127-131. https://doi.org/10.12989/cac.2017.19.2.127.
  26. Sarkani, Michaelov, G., Kihl, D.P. and Bonanni, D.L. (2001), "Comparative study of nonlinear damage accumulation models in stochastic fatigue of FRP laminates", J. Struct. Eng., 127(3), 314-322. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:3(314).
  27. Sasaki, K.K., Paret, T., Araiza, J.C. and Hals, P. (2010), "Failure of concrete T-beam and box-girder highway bridges subjected to cyclic loading from traffic", Eng. Struct., 32(7), 1838-1845. https://doi.org/10.1016/j.engstruct.2010.01.006.
  28. Sohel, K.M.A., Al-Jabri, K., Zhang, M.H. and Liew, J.Y.R. (2018), "Flexural fatigue behavior of ultra-lightweight cement composite and high strength lightweight aggregate concrete", Constr. Build. Mater., 173, 90-100. https://doi.org/10.1016/j.conbuildmat.2018.03.276.
  29. Suidan, M. and Schnobrich, W.C. (1973), "Finite element analysis of reinforced concrete", J. Struct. Div., 99(10), 2109-2122. https://doi.org/10.1061/JSDEAG.0003623
  30. Zhang, S. and Teng, J. (2014), "Finite element analysis of end cover separation in RC beams strengthened in flexure with FRP", Eng. Struct., 75, 550-560. https://doi.org/10.1016/j.engstruct.2014.06.031.

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