Computers and Concrete

  • 제22권2호
  • /
  • Pages.209-220
  • /
  • 2018
  • /
  • 1598-8198(pISSN)
  • /
  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effect of hybrid fibers on flexural performance of reinforced SCC symmetric inclination beams

  • Zhang, Cong (School of Environment and Civil Engineering, Jiangnan University) ;
  • Li, Zhihua (School of Environment and Civil Engineering, Jiangnan University) ;
  • Ding, Yining (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology)
  • 투고 : 2018.01.16
  • 심사 : 2018.06.15
  • 발행 : 2018.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

In order to evaluate the effect of hybrid fibers on the flexural performance of tunnel segment at room temperature, twelve reinforced self-consolidating concrete (SCC) symmetric inclination beams containing steel fiber, macro polypropylene fiber, micro polypropylene fiber, and their hybridizations were studied under combined loading of flexure and axial compression. The results indicate that the addition of mono steel fiber and hybrid fibers can enhance the ultimate bearing capacity and cracking behavior of tested beams. These improvements can be further enhanced along with increasing the content of steel fiber and macro PP fiber, but reduced with the increase of the reinforcement ratio of beams. The hybrid effect of steel fiber and macro PP fiber was the most obvious. However, the addition of micro PP fibers led to a degradation to the flexural performance of reinforced beams at room temperature. Meanwhile, the hybrid use of steel fiber and micro polypropylene fiber didn't present an obvious improvement to SCC beams. Compared to micro polypropylene fiber, the macro polypropylene fiber plays a more prominent role on affecting the structural behavior of SCC beams. A calculation method for ultimate bearing capacity of flexural SCC symmetric inclination beams at room temperature by taking appropriate effect of hybrid fibers into consideration was proposed. The prediction results using the proposed model are compared with the experimental data in this study and other literature. The results indicate that the proposed model can estimate the ultimate bearing capacity of SCC symmetric inclination beams containing hybrid fibers subjected to combined action of flexure and axial compression at room temperature.

키워드

과제정보

연구 과제 주관 기관 : The Natural Science Fund, Ministry of Education

참고문헌

  1. Alberti, M.G., Enfedaque, A. and Galvez, J.C. (2015), "Comparison between polyolefin fibre reinforced vibrated conventional concrete and self-compacting concrete", Constr. Build. Mater., 85, 182-194. https://doi.org/10.1016/j.conbuildmat.2015.03.007
  2. Bangi, M.R. and Horiguchi, T. (2011), "Pore pressure development in hybrid fibre-reinforced high strength concrete at elevated temperatures", Cement Concrete Res., 41, 1150-1156. https://doi.org/10.1016/j.cemconres.2011.07.001
  3. Bangi, M.R. and Horiguchi, T. (2012), "Effect of fiber type and geometry on maximum pore pressures in fiber-reinforced high strength concrete at elevated temperatures", Cement Concrete Res., 42, 459-466. https://doi.org/10.1016/j.cemconres.2011.11.014
  4. Bosnjak, J., Ozbolt, J. and Hahn, R. (2013), "Permeability measurement on high strength concrete without and with polypropylene fibers at elevated temperatures using a new test setup", Cement Concrete Res., 53, 104-111. https://doi.org/10.1016/j.cemconres.2013.06.005
  5. Campione, G. (2008), "Simplified flexural response of steel fiberreinforced concrete beams", J. Mater. Civil Eng., 20(4), 283-293. https://doi.org/10.1061/(ASCE)0899-1561(2008)20:4(283)
  6. Caratelli, A., Meda, A., Rinaldi, Z. and Romualdi, P. (2011), "Structural behaviour of precast tunnel segments in fiber reinforced concrete", Tunn. Undergr. Sp. Tech., 26(2), 284-291. https://doi.org/10.1016/j.tust.2010.10.003
  7. Cattaneo, S., Giussani, F. and Mola, F. (2012), "Flexural behaviour of reinforced, prestressed and composite self-consolidating concrete beams", Constr. Build. Mater., 36, 826-837. https://doi.org/10.1016/j.conbuildmat.2012.06.001
  8. Chen, X., Ge, L., Yuan, H. and Zhou, J. (2016), "Effect of prestatic loading on dynamic tensile strength of concrete under high strain rates", J. Mater. Civil Eng., 28(12), 1-7.
  9. Dancygier, A.N. and Savir, Z. (2006), "Flexural behavior of HSFRC with low reinforcement ratios", Eng. Struct., 28(11), 1503-1512. https://doi.org/10.1016/j.engstruct.2006.02.005
  10. De la Fuente, A., Pujadas, P., Blanco, A. and Aguado, A. (2012), "Experiences in Barcelona with the use of fibres in segmental linings", Tunn. Undergr. Sp. Tech., 27(1), 60-71. https://doi.org/10.1016/j.tust.2011.07.001
  11. Ding, Y., Liu, H., Pacheco-Torgal, F. and Jalali, S. (2011), "Experimental investigation on the mechanical behaviour of the fiber reinforced high-performance concrete tunnel segment", Compos. Struct., 93(4), 1284-1289. https://doi.org/10.1016/j.compstruct.2010.10.006
  12. Falkner, H. and Henke, V. (2004), "SFRC-shear load bearing capacity and tunnel linings", Proceedings of the 6th Rilem Symposium on Fiber-Reinforced Concrete, Varenna, Italy.
  13. Feyerabend, B. (1995), "Zum Einfluss verschiedener Stahlfasern auf das Verformungs und Rissverhalten von Stahlfaserbeton unter den Belastungsbdingungen einer Tunnelschale", No. 95-8, Ruhr Universitaet Bochum Institut fuer Konstruktiven Ingenieurbau, Ruhr, Germany.
  14. Hemmy, O. (2003), "Zum Gebrauchs-Und Tragverhalten von Tunnelschalen aus Stahlfaserbenton und Stahfaserverstaerktem Stahlbeton", Ph.D. Dissertation, Technischen Universitaet Braunschweig, Braunschweig, Germany.
  15. Ibrahimbegovic, A., Boulkertous, A., Davenne, L., Muhasilovic, M. and Pokrklic, A. (2010), "On modeling of fire resistance tests on concrete and reinforced-concrete structures", Comput. Concrete, 7(4), 285-301. https://doi.org/10.12989/cac.2010.7.4.285
  16. Kandasamy, S. and Akila, P. (2015), "Experimental analysis and modeling of steel fiber reinforced SCC using central composite design", Comput. Concrete, 15(2), 215-229. https://doi.org/10.12989/cac.2015.15.2.215
  17. Kim, H.J., Kim, H.Y., Kwon, I.K., Kwon, K.H., Min, B.Y. and Cho, B.Y. (2013), "A study on the fire performance and heat transfer of the HPC column with fiber-cocktail in ISO fire under loading condition", Comput. Concrete, 12(5), 717-737. https://doi.org/10.12989/cac.2013.12.5.717
  18. Lee, D.H., Hwang, J.H., Ju, H. and Kim, K.S. (2014), "Application of direct tension force transfer model with modified fixed-angle softened-truss model to finite element analysis of steel fiber-reinforced concrete members subjected to shear", Comput. Concrete, 13(1), 49-70. https://doi.org/10.12989/cac.2014.13.1.049
  19. Liu, X., Ye, G. and Schutter, G.D. (2008), "On the mechanism of Polypropylene fibers in preventing fire spalling in self-compacting and high-performance cement paste", Cement Concrete Res., 38, 487-499. https://doi.org/10.1016/j.cemconres.2007.11.010
  20. Ma, Q., Guo, R., Zhao, Z., Lin, Z. and He, K. (2015), "Mechanical properties of concrete at high temperature-A review", Constr. Build. Mater., 93, 371-383. https://doi.org/10.1016/j.conbuildmat.2015.05.131
  21. Meda, A., Minelli, F. and Plizzari, G.A. (2012), "Flexural behaviour of RC beams in fibre reinforced concrete", Compos. Part B-Eng., 43(8), 2930-2937. https://doi.org/10.1016/j.compositesb.2012.06.003
  22. Mitsuo, O., Shinya, U. and Toshiro, K. (2012), "Study of mechanisms of explosive spalling in high-strength concrete at high temperatures using acoustic emission", Constr. Build. Mater., 37, 621-628. https://doi.org/10.1016/j.conbuildmat.2012.06.070
  23. Nicola, B., Claudio, M. and Marco, S. (2011), "Post-cracking behaviour of steel and macro-synthetic fibre-reinforced concretes", Constr. Build. Mater., 25, 2713-2722. https://doi.org/10.1016/j.conbuildmat.2010.12.022
  24. Ning, X.L. (2015), "Bending capacity and cracking behavior of fiber reinforced self-consolidating concrete beams containing conventional reinforcement", Ph.D. Dissertation, Dalian University of Technology, Dalian, China.
  25. Oh, B.H., Kim, J.C. and Choi, Y.C. (2007), "Fracture behavior of concrete members reinforced with structural synthetic fibers", Eng. Fract. Mech., 74, 243-257. https://doi.org/10.1016/j.engfracmech.2006.01.032
  26. Plizzari, G.A. and Tiberti, G. (2006), "Steel fibers as reinforcement for precast tunnel segments", Tunn. Undergr. Sp. Tech., 21(3), 438-439. https://doi.org/10.1016/j.tust.2005.12.079
  27. Ponikiewski, T. and Katzer, J. (2014), "Properties of fresh SCC mix reinforced by different types of steel and polymer fibre", Constr. Build. Mater., 62, 96-101. https://doi.org/10.1016/j.conbuildmat.2014.03.037
  28. Pujadas, P., Blanco, A., Cavalaro, S. and Aguado, A. (2014), "Plastic fibres as the only reinforcement for flat suspended slabs: experimental investigation and numerical simulation", Constr. Build. Mater., 57, 92-104. https://doi.org/10.1016/j.conbuildmat.2014.01.082
  29. Pujadas, P., Blanco, A., Cavalaro, S., de la Fuente, A. and Aguado, A. (2014), "Fibre distribution in macro-plastic fibre reinforced concrete slab-panels", Constr. Build. Mater., 64, 496-503. https://doi.org/10.1016/j.conbuildmat.2014.04.067
  30. Pujadas, P., Blanco, A., Cavalaro, S.H.P., Aguado, A., Grunewald, S., Blom, K. and Walraven, J.C. (2014), "Plastic fibres as the only reinforcement for flat suspended slabs: Parametric study and design considerations", Constr. Build. Mater., 70, 88-96. https://doi.org/10.1016/j.conbuildmat.2014.07.091
  31. Pujadas, P., Blanco, A., Cavalaro, S.H.P., De La Fuente, A. and Aguado, A. (2014), "Multidirectional double punch test to assess the post-cracking behaviour and fibre orientation of FRC", Constr. Build. Mater., 58, 214-224. https://doi.org/10.1016/j.conbuildmat.2014.02.023
  32. Ramadoss, P. and Nagamani, K. (2012), "Statistical methods of investigation on the compressive strength of high-performance steel fiber reinforced concrete", Comput. Concrete, 9(2), 153-169. https://doi.org/10.12989/cac.2012.9.2.153
  33. Ramadoss, P. and Nagamani, K. (2013), "Stress-strain behavior and toughness of high-performance steel fiber reinforced concrete in compression", Comput. Concrete, 11(2), 149-167. https://doi.org/10.12989/cac.2013.11.2.149
  34. Salah, A., Ardavan, Y. and Rieder, K.A. (2009), "Shear behavior of macro-synthetic fiber-reinforced concrete beams without stirrups", ACI Mater. J., 106(4), 381-389.
  35. Soutsos, M.N., Le, T.T. and Lampropoulos, A.P. (2012), "Flexural performance of fibre reinforced concrete made with steel and synthetic fibres", Constr. Build. Mater., 36, 704-710. https://doi.org/10.1016/j.conbuildmat.2012.06.042
  36. Toropovs, N., Monte, F.L., Wyrzykowski, M., Weber, B., Sahmenko, G., Vontobel, P., ... and Lura, P. (2015), "Real-time measurements of temperature, pressure and moisture profiles in high-performance concrete exposed to high temperature during neutron radiography imaging", Cement Concrete Res., 68, 166-173. https://doi.org/10.1016/j.cemconres.2014.11.003
  37. Tuan, B.L.A., Tesfamariam, M.G., Hwang, C.L., Chen, C.T., Chen, Y.Y. and Lin, K.L. (2014), "Effect of fiber type and content on properties of high-strength fiber reinforced self-consolidating concrete", Comput. Concrete, 14(3), 299-313. https://doi.org/10.12989/cac.2014.14.3.299
  38. Voo, J. and Foster, S. (2003), "Variable engagement model for fibre reinforced concretein tension", UNICIV Report No. R-420, The University of New South Wales, Sydney, Australia.
  39. Won, J.P., Lim, D.H. and Park, C.G. (2006), "Bond behaviour and flexural performance of structural synthetic fiber-reinforced concrete", Mag. Concrete. Res., 58, 401-410. https://doi.org/10.1680/macr.2006.58.6.401
  40. Ye, G., Liu, X. and Schutter, G.D. (2007), "Phase distribution and microstructural changes of self-compacting cement paste at elevated temperature", Cement Concrete Res., 37, 978-987. https://doi.org/10.1016/j.cemconres.2007.02.011
  41. Yining, D., Hekai, L., Yulin, Z., Xiliang, N. and Azevedo, C.M. (2014), "Shear resistance and cracking behaviour of SFRC beams with and without axial load", Mag. Concrete. Res., 66(23), 1183-1193. https://doi.org/10.1680/macr.14.00043