Advances in concrete construction

  • 제2권2호
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  • Pages.91-108
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  • 2014
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  • 2287-5301(pISSN)
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  • 2287-531X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Three-dimensional finite element analysis of reinforced concrete slabs strengthened with epoxy-bonded steel plates

  • Metwally, Ibrahim M. (Reinforced Concrete Department, Housing & Building Research Centre)
  • 투고 : 2014.01.31
  • 심사 : 2014.05.13
  • 발행 : 2014.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents a nonlinear finite element analysis (FEA) in order to investigate the flexural performance of one-way slabs strengthened by epoxy-bonded steel plates. Four point loading scheme is selectively chosen. A model is developed to implement the material constitutive relationships and non-linearity. Five Slabs were modeled in FEM software using ABAQUS. One slab was unstrengthened control slab and the others were strengthened with steel plates with varying the plate thickness and configuration. In order to verify the accuracy of the numerical model, a comparison was done between the experimental results available in the literature and the proposed equations by ACI 318-11 for the calculation of ultimate load capacities of strengthened slabs, the agreement has proven to be good and FEA attained accurate results compared with ACI code. A parametric study was also carried out to investigate the influence of thickness of steel plate, strength of epoxy layer and type of strengthening plate on the performance of plated slabs. Also, the practical and technical feasibility of splitting the steel plate in strengthening process has been taken into account. For practical use, the author recommended to use bonded steel plate as one unit rather than splitting it to parts, because this saves more effort and reduces the risk of execution errors as in the case of multiple bonded parts. Both techniques have nearly the same effect upon the performance of strengthened slabs.

키워드

참고문헌

  1. ABAQUS (2013), Standard Version 6.13, and ABAQUS standard user's manual, The Abaqus Software is a product of Dassault Systemes Simulia Corp., Hibbitt Karlsson & Sorensen Inc.; USA.
  2. Afefy, H. and Fawzy, T. (2013), "Strengthening of RC one-way slabs including cut-out using different techniques", Eng. Struct., 57, 23-36. https://doi.org/10.1016/j.engstruct.2013.09.013
  3. Arslan, G., Sevuk, F. and Ekiz, I. (2008), "Steel plate contribution to load-carrying capacity of retrofitted RC beams", Construct. Build. Mater., 22(3), 143-153. https://doi.org/10.1016/j.conbuildmat.2006.10.009
  4. Chen, W.F. and Raleeb, A.F. (1982), Constitutive Equations for Engineering Materials, John Wiley and Sons, New York, USA.
  5. Chiang, M. and Chai, H. (1994), "Plastic deformation analysis of cracked adhesive bonds loaded in shear", Int. J. Solids Struct., 31, 2477-2490. https://doi.org/10.1016/0020-7683(94)90032-9
  6. Design Code (2011), ACI Committee 318, Building Code Requirements for Reinforced Concrete and Commentary, American Concrete Institute, USA.
  7. Design Code (2006), "FIB, Retrofitting of concrete structures by externally bonded FRPs", International federation for structural concrete, bulletin 35, Lausanne, Switzerland.
  8. Gholami, M., Mohd, A., Yatim, J. and Tahir, M. (2013), "A review on steel/CFRP strengthening systems focusing environmental performance", Construct. Build. Mater., 47, 301-310. https://doi.org/10.1016/j.conbuildmat.2013.04.049
  9. Hwang, K., Lee, K., Yang, H. and Kim, W. (2013), "An experimental study on the flexural and shear behavior of steel plate concrete-reinforced concrete connected structures", Nuclear Eng. Des., 257, 88-99. https://doi.org/10.1016/j.nucengdes.2012.12.020
  10. Jansze, W. (1997), "Strengthening of reinforced concrete members in bending by externally bonded steel plates", Ph.D Dissertation, Delft University of Technology, Netherlands.
  11. Lesmana, C., Hu, H., Lin, F. and Huang, N. (2013), "Numerical analysis of square reinforced concrete plates strengthened by fiber-reinforced plastics with various patterns", Compos. Part B: Eng., 55, 247-262. https://doi.org/10.1016/j.compositesb.2013.06.021
  12. Oehlers, J. and Seracino, R. (2004), Design of FRP and Steel Plated RC Structures, El-Sevier Publishing, UK.
  13. Osman, M., Marzouk, H. and Helmy, S. (2000), "Behavior of high-strength lightweight concrete slabs under punching loads", ACI Struct. J., 97(3), 492-498.
  14. Rasheed, l. and al-azawi, T. (2013), "Experimental analysis of reinforced concrete slabs strengthened with steel plates", Iraqi J. Mech. Mater. Eng., 13(1), 1-12.
  15. Sena-Cruz, J., Barros, J., Coelho, M. and Silva, M. (2012), "Efficiency of different techniques in flexural strengthening of RC beams under monotonic and fatigue loading", Construct. Build. Mater., 29, 175-182. https://doi.org/10.1016/j.conbuildmat.2011.10.044
  16. Zhao, G. and Alex, L. (2008), "Numerical study of a bonded steel and concrete composite beam", Comput. Struct. J., 86(19-20), 1830-1838. https://doi.org/10.1016/j.compstruc.2008.04.002

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