International Journal of Concrete Structures and Materials

Korea Concrete Institute (한국콘크리트학회)
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First Diagonal Cracking and Ultimate Shear of I-Shaped Reinforced Girders of Ultra High Performance Fiber Reinforced Concrete without Stirrup

  • Wu, Xiangguo (School of Architecture Engineering, Harbin Engineering University) ;
  • Han, Sang-Mook (School of Civil Engineering, Kumoh National Institute of Technology)
  • Published : 2009.06.30
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Abstract

The first diagonal cracking and ultimate shear load of reinforced girder made of ultra high performance fiber reinforced concrete (UHPFRC) were investigated in this paper. Eleven girders were tested in which eight girders failed in shear. A simplified formulation for the first diagonal cracking load was proposed. An analytical model to predict the ultimate shear load was formulated based on the two bounds theory. A fiber reinforcing parameter was constituted based on the random assumption of steel fiber uniform distribution. The predicted values were compared with the conventional predictions and the test results. The proposed equation can be used for the first cracking status analysis, while the proposed equations for computing the ultimate shear strength can be used for the ultimate failure status analysis, which can also be utilized for numerical limit analysis of reinforced UHPFRC girder. The established fiber reinforcing theoretical model can also be a reference for micro-mechanics analysis of UHPFRC.

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References

  1. Cavill, B. and Chirgwin, G., “The Worlds First Ductal Road Bridge Sherpherds Gully Creek Bridge,” 21 st Biennial Conference of the Concrete Institute of Australia, Brisbane, 2003.
  2. Okuma, H., “The First Highway Bridge Applying Ultra High Strength Fiber Reinforced Concrete In Japan,” 7 th International Conference on Short and Medium Span Bridge, Montreal, Canada, 2006.
  3. Graybeal, B., Hartamann, J., and Perry, V., “Ultra High Performance Concrete for Highway Bridge,” FIB Symposium, Avignon-26-28, April 2004.
  4. Sorelli, L., Davila, R., Ulm, F. J., Perry, V., and Seibert, P.,“Risk Analysis of Early-Age Cracking in UHPC Structures,” Proceedings of the Second International Symposium on Ultra High Performance Concrete, Kassel, Germany, March 5-7, 2008, pp. 331-338.
  5. Nielsen, M. P., Limit Analysis and Concrete Plasticity, Prentice Hall, Inc. Englewood Cliffs, New jersey, 1984, pp. 1-28, 205-235.
  6. Ashour, A. F., “Upper Bound Analysis for Reinforced Concrete Deep Beams with Fixed End Supports,” ACI Struct. Journal, Vol. 96, No. 2, 1999, pp. 167-173.
  7. Imam, M., Vandewalle, L., Mortelmans, F., and Van Gemert, D., “Shear Domain of Fibre-Reinforced High Strength Concrete Beams,” Journal of Engineering Structures, Vol. 19, No. 9, 1997, pp. 738-747. https://doi.org/10.1016/S0141-0296(96)00150-2
  8. Kwak, Y. K., Eberhard, M. O., Kim, W. S., and Kim, J., “Shear Strength of Steel Fiber-Reinforced Concrete Beams without Stirrups,” ACI Structural Journal, Vol. 99, No. 4, 2002, pp. .
  9. Hoang, L. C., Shear Strength of Non-Shear Reinforced Concrete Elements, Part 2-T-Beams, Report No. 29, Technical University of Denmark, Department of Structural Engineering and Materials, Lyngby, 1997, 35 pp.
  10. Hoang, L. C., Shear Strength of Non Shear Reinforced Concrete Elements. Part 1-Statically Indeterminate Beams, Technical University of Denmark, Department of Structural Engineering and Materials, Report R No. 16, Lyngby, 1997.
  11. Zhang, J.P., Strength of Cracked Concrete. Part I-Shear Strength of Conventional Reinforced Concrete Beams, Deep Beams, Corbels and Prestressed Reinforced Concrete Beams without Shear Reinforcement, Technical University of Denmark, Department of Structural Engineering, Report R No. 311, Lyngby, 1994.
  12. Sharma, A. K., “Shear Strength of Steel Fiber Reinforced Concrete Beams,” ACI Journal, Vol. 83, No. 1, 1986, pp. 624-628.
  13. Beaudoin, J. J., Handbook of Fiber-Reinforced Concrete (Principles, Properties, Developments and Applications), Noyes Publications, New Jersey, USA, 1990, 22 pp.

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