Computers and Concrete

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Evaluation of behavior and strength of prestressed concrete deep beams using nonlinear analysis

  • Kim, T.H. (Construction Technology R&D Center, Samsung C&T Corporation) ;
  • Cheon, J.H. (Department of Civil and Environmental Engineering, Sungkyunkwan University) ;
  • Shin, H.M. (Department of Civil and Environmental Engineering, Sungkyunkwan University)
  • Received : 2010.10.17
  • Accepted : 2011.06.28
  • Published : 2012.01.25
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Abstract

The purpose of this study is to evaluate the behavior and strength of prestressed concrete deep beams using nonlinear analysis. By using a sophisticated nonlinear finite element analysis program, the accuracy and objectivity of the assessment process can be enhanced. A computer program, the RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology), was used for the analysis of reinforced concrete structures. Tensile, compressive and shear models of cracked concrete and models of reinforcing and prestressing steel were used to account for the material nonlinearity of prestressed concrete. The smeared crack approach was incorporated. A bonded or unbonded prestressing bar element is used based on the finite element method, which can represent the interaction between the prestressing bars and concrete of a prestressed concrete member. The proposed numerical method for the evaluation of behavior and strength of prestressed concrete deep beams is verified by comparing its results with reliable experimental results.

Keywords

Acknowledgement

Supported by : Ministry of Land, Transport and Maritime Affairs

References

  1. Alshegeir, A. and Ramirez, J.A. (1992), "Strut-tie approach in prestensioned deep beams", ACI Struct. J., 89(3), 296-304.
  2. American Concrete Institute (2008), Building code requirements for structural concrete (ACI 318M-08) and commentary, Farmington Hills, Michigan, USA.
  3. Canadian Standards Association (1994), Design of concrete structures: structures (Design) - a national strandard of Canada (CANA23.3-94), Rexdale, Ontario, Canada.
  4. The International Federation for Structural Concrete (fib) (1999), Structural concrete; textbook on behavior, design and performance updated knowledge of the CEB/FIP model code 1990 Volume 3, The International Federation for Structural Concrete (fib), Lausanne, Switzerland.
  5. Kim, T.H., Hong, H.K., Chung, Y.S. and Shin, H.M. (2009), "Seismic performance assessment of reinforced concrete bridge columns with lap splices using shaking table tests", Mag. Concrete Res., 61(9), 705-719. https://doi.org/10.1680/macr.2008.61.9.705
  6. Kim, T.H., Kim, Y.J. and Shin, H.M. (2007), "Seismic performance assessment of reinforced concrete bridge columns under variable axial load", Mag. Concrete Res., 59(2), 87-96. https://doi.org/10.1680/macr.2007.59.2.87
  7. Kim, T.H., Lee, K.M., Chung, Y.S. and Shin, H.M. (2005), "Seismic damage assessment of reinforced concrete bridge columns", Eng. Struct., 27(4), 576-592. https://doi.org/10.1016/j.engstruct.2004.11.016
  8. Kim, T.H., Lee, K.M., Yoon, C.Y. and Shin, H.M. (2003), "Inelastic behavior and ductility capacity of reinforced concrete bridge piers under earthquake. I: theory and formulation", J. Struct. Eng. - ASCE, 129(9), 1199-1207. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:9(1199)
  9. Kim, T.H., Park, J.G., Kim, Y.J. and Shin, H.M. (2008), "A computational platform for seismic performance assessment of reinforced concrete bridge piers with unbonded reinforcing or prestressing bars", Comput. Concrete, 5(2), 135-154. https://doi.org/10.12989/cac.2008.5.2.135
  10. Kim, T.H. and Shin, H.M. (2001), "Analytical approach to evaluate the inelastic behaviors of reinforced concrete structures under seismic loads", J. Earthq. Eng. Soc. Korea, EESK, 5(2), 113-124.
  11. Li, B. and Maekawa, K. (1988), "Contact density model for stress transfer across cracks in concrete", Concrete Eng. JCI, 26(1), 123-137.
  12. Lu, W.Y., Hwang, S.J. and Lin, I.J. (2010), "Deflection prediction for reinforced concrete deep beams", Comput. Concrete, 7(1), 1-16. https://doi.org/10.12989/cac.2010.7.1.001
  13. Maekawa, K. and Okamura, H. (1983), "The deformational behavior and constitutive equation of concrete using elasto-plastic and fracture model", J. Fac. Eng., Univ. Tokyo, 37(2), 253-328.
  14. Maekawa, K., Pimanmas, A. and Okamura, H. (2001), Nonlinear mechanics of reinforced concrete, SPON Press.
  15. Ministry of Land, Transport, and Maritime Affairs (2007), Concrete structural design code, MLTM, Korea.
  16. Pimentel, M., Cachim, P. and Figueiras, J. (2008), "Deep-beams with indirect supports: numerical modeling and experimental assessment", Comput. Concrete, 5(2), 117-134. https://doi.org/10.12989/cac.2008.5.2.117
  17. Ramirez, J.A. (1994), "Strut-tie design of prestensioned concrete members", ACI Struct. J., 91(4), 572-578.
  18. Smith, K.N. and Vantsiotis, A.S. (1982), "Shear strength of deep beams", ACI Struct. J., 79(3), 201-213.
  19. Tan, K.H., Lu, H.Y. and Teng, S. (1999), "Size effect in large prestressed concrete deep beams", ACI Struct. J., 96(6), 937-946.
  20. Tan, K.H. and Mansur, M.A. (1992), "Partial prestressing in concrete corbels and deep beams", ACI Struct. J., 89(3), 251-262.
  21. Taylor, R.L. (2000), FEAP - a finite element analysis program, Version 7.2 Users Manual, Volume 1 and Volume 2.

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