International Journal of Concrete Structures and Materials

Korea Concrete Institute (한국콘크리트학회)
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Shear Deformation of Steel Fiber-Reinforced Prestressed Concrete Beams

  • Hwang, Jin-Ha (Department of Architectural Engineering, University of Seoul) ;
  • Lee, Deuck Hang (Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign) ;
  • Ju, Hyunjin (Department of Architectural Engineering, University of Seoul) ;
  • Kim, Kang Su (Department of Architectural Engineering, University of Seoul) ;
  • Kang, Thomas H.K. (Department of Architecture & Architectural Engineering, Seoul National University) ;
  • Pan, Zuanfeng (Department of Building Engineering, Tongji University)
  • Received : 2016.03.21
  • Accepted : 2016.06.20
  • Published : 2016.09.30
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Abstract

Steel fiber-reinforced prestressed concrete (SFRPSC) members typically have high shear strength and deformation capability, compared to conventional prestressed concrete (PSC) members, due to the resistance provided by steel fibers at the crack surface after the onset of diagonal cracking. In this study, shear tests were conducted on the SFRPSC members with the test variables of concrete compressive strength, fiber volume fraction, and prestressing force level. Their localized behavior around the critical shear cracks was measured by a non-contact image-based displacement measurement system, and thus their shear deformation was thoroughly investigated. The tested SFRPSC members showed higher shear strengths as the concrete compressive strength or the level of prestress increased, and their stiffnesses did not change significantly, even after diagonal cracking due to the resistance of steel fibers. As the level of prestress increased, the shear deformation was contributed by the crack opening displacement more than the slip displacement. In addition, the local displacements around the shear crack progressed toward directions that differ from those expected by the principal strain angles that can be typically obtained from the average strains of the concrete element. Thus, this localized deformation characteristics around the shear cracks should be considered when measuring the local deformation of concrete elements near discrete cracks or when calculating the local stresses.

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References

  1. Avendano, A. R., & Bayrak, O. (2011). Efficient shear reinforcement design limits for prestressed concrete beams. ACI Structural Journal, 108(6), 689-697.
  2. Batson, G., Jenkins, E., & Spatney, R. (1972). Steel fibers as shear reinforcement in beams. ACI Journal Proceedings, 69(10), 640-644.
  3. Campione, G. (2014). Flexural and shear resistance of steel fiber-reinforced lightweight concrete beams. Journal of Structural Engineering, 140(4), 04013103. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000887
  4. Colajanni, P., Recupero, A., & Spinella, N. (2012). Generalization of shear truss model to the case of SFRC beams with stirrups. Computers and Concrete, 9(3), 227-244. https://doi.org/10.12989/cac.2012.9.3.227
  5. Dinh, H. H., Parra-Montesinos, G. J., & Wight, J. K. (2010). Shear behavior of steel fiber-reinforced concrete beams without stirrup reinforcement. ACI Structural Journal, 107(5), 597-606.
  6. Furlan, S. Jr., & Hanai, J. B. (1999). Prestressed fiber reinforced concrete beams with reduced ratios of shear reinforcement. Cement & Concrete Composites, 21(3), 213-221. https://doi.org/10.1016/S0958-9465(98)00054-7
  7. Hwang, J.-H., Lee, D. H., Park, M.-K., Choi, S.-H., Kim, K. S., & Pan, J. (2015). Shear performance assessment of steel fiber reinforced prestressed concrete members. Computers and Concrete, 16(6), 825-846. https://doi.org/10.12989/cac.2015.16.6.825
  8. Hawkins, N. M., & Ghosh, S. K. (2006). Shear strength of hollow-core slabs. PCI Journal, 51(1), 110-115. https://doi.org/10.15554/pcij.09012006.110.130
  9. Islam, M. S., & Alam, S. (2013). Principal component and multiple regression analysis for steel fiber reinforced concrete (SFRC) beams. International Journal of Concrete Structures and Materials, 7(4), 303-317. https://doi.org/10.1007/s40069-013-0059-7
  10. Karl, K. W., Lee, D. H., Hwang, J. H., Kim, K. S., & Choi, I. S. (2011). Revision on material strength of steel fiber-reinforced concrete. International Journal of Concrete Structures and Materials, 5(2), 87-96. https://doi.org/10.4334/IJCSM.2011.5.2.87
  11. Li, B., Maekawa, K., & Okamura, H. (1989). Contact density model for stress transfer across cracks in concrete. Journal of the Faculty of Engineering, 40(1), 9-52.
  12. Liu, H., Xiang, T., & Zhao, R. (2009). Research on non-linear structural behaviors of prestressed concrete beams made of high strength and steel fiber reinforced concretes. Construction and Building Materials, 23(1), 85-95. https://doi.org/10.1016/j.conbuildmat.2008.01.016
  13. Narayanan, R., & Darwish, Y. (1987). Shear in prestressed concrete beams containing steel fibres. The International Journal of Cement Composites and Lightweight Concrete, 9(2), 81-90. https://doi.org/10.1016/0262-5075(87)90023-6
  14. Oh, B. H., & Kim, K. S. (2004). Shear behavior of full-scale post-tensioned prestressed concrete bridge girders. ACI Structural Journal, 101(2), 176-182.
  15. Padmarajaiah, S. K., & Ramaswamy, A. (2001). Behavior of fiber-reinforced prestressed and reinforced high-strength concrete beams subjected to shear. ACI Structural Journal, 98(5), 752-761.
  16. Padmarajaiah, S. K., & Ramaswamy, A. (2004). Flexural strength predictions of steel fiber reinforced high-strength concrete in fully-partially prestressed beam specimens. Cement & Concrete Composites, 26(4), 275-290. https://doi.org/10.1016/S0958-9465(02)00121-X
  17. Spinella, N., Colajanni, P., & La Mendola, L. (2012). Nonlinear analysis of beams reinforced in shear with stirrups and steel fibers. ACI Structural Journal, 109(1), 53-64.
  18. Thomas, J., & Ramaswamy, A. (2006). Shear strength of prestressed concrete T-beams with steel fibers over partial/full depth. ACI Structural Journal, 103(3), 427-435.
  19. Tan, K. H., Paramasivam, P., & Murugappan, K. (1996). Steel fibers as shear reinforcement in patially prestressed beams. ACI Structural Journal, 92(6), 643-651.
  20. Tadepalli, P. R., Dhonde, H. B., Mo, Y. L., & Hsu, T. T. (2015). Shear strength of prestressed steel fiber concrete I-beams. International Journal of Concrete Structures and Materials, 9(3), 267-281. https://doi.org/10.1007/s40069-015-0109-4
  21. Tadepalli, P. R., Hoffman, N., Hsu, T. T. C., & Mo, Y. L. (2011). Steel fiber replacement of mild steel in prestressed concrete beams. FHWA/TX-09/0-5255-2, Texas Department of Transportation, TX, USA, 177 p.
  22. Vecchio, F. J., & Collins, M. P. (1986). Modified compression field theory for reinforced concrete elements subjected to shear. ACI Journal Proceedings, 83(2), 219-231.
  23. Watanabe, F., & Lee, J. (1998). Theoretical prediction of shear strength and failure mode of reinforced concrete beas. ACI Structural Journal, 95(6), 749-757.
  24. Walraven, J. C. (1981). Fundamental analysis of aggregate interlock. Journal of Structural Engineering, 107(7), 2245-2270.

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