Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Numerical investigation of continuous composite girders strengthened with CFRP

  • Samaaneh, Mohammad A. (An-Najah National University) ;
  • Sharif, Alfarabi M. (Department of Civil & Environmental Engineering, King Fahd University of Petroleum and Minerals) ;
  • Baluch, Mohammed H. (Department of Civil & Environmental Engineering, King Fahd University of Petroleum and Minerals) ;
  • Azad, Abul K. (Department of Civil & Environmental Engineering, King Fahd University of Petroleum and Minerals)
  • Received : 2016.02.18
  • Accepted : 2016.08.14
  • Published : 2016.08.30
⟨ Previous Next ⟩

Abstract

Nonlinear behavior of two-span, continuous composite steel-concrete girders strengthened with Carbon Fiber Reinforced Polymers (CFRP) bonded to the top of concrete slab over the negative moment region was evaluated using a non-linear Finite Element (FE) model in this paper. A three-dimensional FE model of continuous composite girder using commercial software ABAQUS simulated and validated with experimental results. The interfacial regions of the composite girder components were modeled using suitable interface elements. Validation of the proposed numerical model with experimental data confirmed the applicability of this model to predict the loading history, strain level for the different components and concrete-steel relative slip. The FE model captured the different modes of failure for the continuous composite girder either in the concrete slab or at the interfacial region between CFRP sheet and concrete slab. Through a parametric study, the thickness of CFRP sheet and shear connection required to develop full capacity of the continuous composite girder at negative moment zone have been investigated. The FE results showed that the proper thickness of CFRP sheet at negative moment region is a function of the adhesive strength and the positive moment capacity of the composite section. The shear connection required at the negative moment zone depends on CFRP sheet's tensile stress level at ultimate load.

Keywords

Acknowledgement

Supported by : King Fahd University of Petroleum and Minerals

References

  1. ACI Committee (2008), American Concrete Institute, and International Organization for Standardization. "Building code requirements for structural concrete (ACI 318-08) and commentary", American Concrete Institute.
  2. Ashour, A.F., El-Refaie, S.A. and Garrity, S.W. (2004), "Flexural strengthening of RC continuous beams using CFRP laminates", Cement Concrete Compos., 26(7), 765-775. https://doi.org/10.1016/j.cemconcomp.2003.07.002
  3. Basu, P.K., Sharif, A.M. and Ahmed, N.U. (1987a), "Partially pre-stressed continuous composite beams. I", J. Struct. Eng., 113(9), 1909-1925. https://doi.org/10.1061/(ASCE)0733-9445(1987)113:9(1909)
  4. Basu, P.K., Sharif, A.M. and Ahmed, N.U. (1987b), "Partially pre-stressed composite beams. II", J. Struct. Eng., 113(9), 1926-1938. https://doi.org/10.1061/(ASCE)0733-9445(1987)113:9(1926)
  5. Bilotta, A. (2010), "Behavior of FRP-to-concrete interface: Theoretical models and experimental results", Doctoral Dissertation; Universitadegli Studi di Napoli Federico II, Italy.
  6. Chen, S., Wang, X. and Jia, Y. (2009), "A comparative study of continuous steel-concrete composite beams pre-stressed with external tendons: Experimental investigation", J. Construct. Steel Res., 65(7), 1480-1489. https://doi.org/10.1016/j.jcsr.2009.03.005
  7. Dai, J.G., Gao, W.Y. and Teng, J.G. (2014), "Finite element modeling of insulated FRP strengthening RC beams exposed to fire", J. Compos. Construct., 19(2), 04014046. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000509
  8. Dundar, C., Tanrikulu, A.K. and Frosch, R.J. (2015), "Prediction of load-deflection behavior of multi-span FRP and steel reinforced beams", Compos. Struct., 132, 680-693. https://doi.org/10.1016/j.compstruct.2015.06.018
  9. Fang, G., Wang, J., Li, S. and Zhang, S. (2016), "Dynamic characteristics analysis of partial-interaction composite continuous beams", Steel Compos. Struct., Int. J., 21(1), 195-216. https://doi.org/10.12989/scs.2016.21.1.195
  10. Grace, N.F., Soliman, A.K., Abdel-Sayed, G. and Saleh, K.R. (1999), "Strengthening of continuous beams using fiber reinforced polymer laminates", ACI Special Publication, p. 188.
  11. Hawileh, R.A., Naser, M.Z. and Abdalla, J.A. (2013), "Finite element simulation of reinforced concrete beams externally strengthened with short-length CFRP plates", Compos. Part B: Eng., 45(1), 1722-1730. https://doi.org/10.1016/j.compositesb.2012.09.032
  12. Joo, H.S., Moon, J., Sung, I.H. and Lee, H.E. (2015), "Moment redistribution of continuous composite Igirder with high strength steel", Steel Compos. Struct., Int. J., 18(4), 873-887. https://doi.org/10.12989/scs.2015.18.4.873
  13. Lee, J. and Fenves, G.L. (1998), "Plastic-damage model for cyclic loading of concrete structures", J. Eng. Mech., 124(8), 892-900. https://doi.org/10.1061/(ASCE)0733-9399(1998)124:8(892)
  14. Lou, T., Lopes, S.M. and Lopes, A.V. (2015), "Neutral axis depth and moment redistribution in FRP and steel reinforced concrete continuous beams", Compos. Part B: Eng., 70, 44-52. https://doi.org/10.1016/j.compositesb.2014.10.044
  15. Lou, T., Lopes, S.M. and Lopes, A.V. (2015), "A comparative study of continuous beams prestressed with bonded FRP and steel tendons", Compos. Struct., 124, 100-110. https://doi.org/10.1016/j.compstruct.2015.01.009
  16. Lubliner, J., Oliver, J., Oller, S. and Onate, E. (1989), "A plastic-damage model for concrete", Int. J. Solid. Struct., 25(3), 299-326. https://doi.org/10.1016/0020-7683(89)90050-4
  17. Malik,,P.K. (1993), Fiber-Reinforced Composites. Materials, Manufacturing and Design, (2nd Ed.), CRC.
  18. Nie, J., Tao, M., Cai, C.S. and Li, S. (2011), "Analytical and numerical modeling of pre-stressed continuous steel-concrete composite beams", J. Struct. Eng., 137(12), 1405-1418. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000409
  19. Sharif, A., Samaaneh, M., Azad, A. and Baluch, M. (2015), "Use of CFRP to maintain composite action for continuous steel-concrete composite girders", J. Compos. Construct., DOI: 10.1061/ (ASCE)CC.1943-5614.0000645,040150881-10.
  20. Topkaya, C., Yura, J.A. and Williamson, E.B. (2004), "Composite shear stud strength at early concrete ages", J. Struct. Eng., 130(6), 952-960. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:6(952)
  21. Tauris, M.J. (2009), "Stress analysis of a fiber reinforced-polymer matrix orthotropic plate with an elliptical hole", Doctoral Dissertation; Resselaer Polytechnic Institute.
  22. URL (2016), http://www.fosroc.com/
  23. Version, A.B.A.Q.U.S. 6.13-1 (2013), User's Manual, ABAQUS.

Cited by

  1. Anticipated and actual performance of composite girder with pre-stressed concrete beam and RCC top flange vol.61, pp.1, 2016, https://doi.org/10.12989/sem.2017.61.1.117
  2. Mechanical behavior of FRP confined steel tubular columns under impact vol.27, pp.6, 2016, https://doi.org/10.12989/scs.2018.27.6.691
  3. Effects of deficiency location on CFRP strengthening of steel CHS short columns vol.28, pp.3, 2018, https://doi.org/10.12989/scs.2018.28.3.267
  4. A Semi-Empirical Deflection-Based Method for Crack Width Prediction in Accelerated Construction of Steel Fibrous High-Performance Composite Small Box Girder vol.12, pp.6, 2016, https://doi.org/10.3390/ma12060964
  5. Use of UHPC slab for continuous composite steel-concrete girders vol.34, pp.3, 2016, https://doi.org/10.12989/scs.2020.34.3.321
  6. Experimental and analytical study on continuous GFRP-concrete decks with steel bars vol.76, pp.6, 2016, https://doi.org/10.12989/sem.2020.76.6.737