한국건설순환자원학회논문집 (Journal of the Korean Recycled Construction Resources Institute)

한국건설순환자원학회 (Korean Recycled Construction Resources Institute)
권호 표지
DOI QR코드

DOI QR Code

비정질 강섬유 보강 일방향 콘크리트 슬래브의 전단성능에 대한 실험적 연구

An Experimental Study of Shear Capacity for One-way Concrete Slabs Reinforced with Amorphous Micro Steel Fibers

  • 투고 : 2013.08.19
  • 심사 : 2013.09.12
  • 발행 : 2013.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구에서는 비정질 강섬유보강 콘크리트 슬래브의 전단성능을 분석하기 위하여 일면 전단 실험을 수행하였다. 주요 변수는 전단보강방법과 전단보강비이며, 1종류의 무전단보강실험체와 3종류의 전단보강실험체(전단철근, 0.25%, 0.5% 비정질 강섬유보강 실험체)의 일방향 슬래브 실험체를 제작하여 실험하였다. 실험결과, 0.25% 비정질 강섬유보강실험체는 전단 성능이 향상되었지만 0.5% 실험체는 0.25% 보강실험체에 비해 전단성능이 향상되지 않았다. 섬유 보강비에 따른 전단보강 효과를 파악하기 위한 추가적인 연구가 필요하다.

In this study, one-way shear tests were performed to investigate the shear capacity of amorphous steel fiber-reinforced concrete slabs. Primary test parameters were the shear reinforcing method(Stirrups or amorphous steel fibers) and shear reinforcement ratio(0.25 and 0.5%). A series of four one-way slab specimens including a specimen without shear reinforcement and three specimens with shear reinforcements(stirrup, 0.25%, and 0.5% amorphous steel fibers) were tested. The test results showed that 0.25% amorphous steel fibers improved the shear capacity, but 0.5% amorphous steel fibers did not improve the shear capacity compared to the specimen with conventional shear reinforcement of 0.25%. Additional study is needed to understand the variation of shear capacity according to fiber volume fraction.

키워드

참고문헌

  1. Design standards on structural Concrete. (2012). "Chapter.6 Slab," 285.
  2. ACI 318-11. (2011). "Building Code Reinforcements for Structural Concret and Commentary."
  3. A. P. Caldentey, P. P. Lavaselli, H. C. Peiretti and F. A. Fernadez. (2011). "Influence of stirrup detailing on punching shear strength of flat slabs," Engineering Structures, 49, 855-865.
  4. M. H. Harajli, D. Maalouf and H. Khatib. (1995). "effect of fibers on the punching shear strength of slab-column connections" Cement and Concrete Composites, 17(2), 161-170. https://doi.org/10.1016/0958-9465(94)00031-S
  5. C. X. Quan and P. Stroeven. (2000). "Fracture properties concrete reinforced with steel-polypropylene hybrid fibres," Cement Concrete Composites, 22(4), 343-353. https://doi.org/10.1016/S0958-9465(00)00033-0
  6. P. K. Mehta and P. J. Monteiro. (2006). "Concrete: Microstructure, properties and materials," 3rd edition, Mc Graw-Hill, Inc., New York.
  7. A. Benter and S. Mindess. (1990). "Fiber-reinforced cementitious composites," Elsevier Science, London, 1-4.
  8. P. N. Balaguru and S. P. Shah. (1992). "Fiber-reinforced cement composites," McGraw-Hill, Inc., New York, 1-5.
  9. N. Banthia and M. Sappakittipakorn. (2007). "Toughness enhancement in the steel fiber reinforced concrete through fibers hybridization," Cementand Concrete Research, 37, 1366-1372. https://doi.org/10.1016/j.cemconres.2007.05.005
  10. A. Ellouze, M. B. Ouezdou, and M. A. Karray. (2010). "Experimental study of steel fiber concrete slabs part I: Behavior under uniformly distributed loads," International Journal of Concrete Structures and Materials, 4(2), 113-118. https://doi.org/10.4334/IJCSM.2010.4.2.113
  11. J. H. Kwon, W. S. Kim, S. M. Baek and Y. K. Kwak. (2003). "Shear-Flexure Capacities of Steel Fiber Reinforced Concrete Beams" Architectural Institute of Korea Journal, 19(3), 41-51.
  12. K. W. Kal, K. S. Kim, D. H. Lee, J. H. Hwang and Y. H. Oh. (2010). "An Experimental Study on Shear Strength of High-Strength Reinforced Concrete Beams with Steel Fibers," Korea institute for Structural Maintenance Inspection Journal, 14(3), 160-170.
  13. W. Yao, J. Li and K. Wu. (2003). "Mechanical properties of hybrid fiber-reinforced concrete at low volume fraction," Cement and Concrete Research, 33(1), 27-30. https://doi.org/10.1016/S0008-8846(02)00913-4
  14. R. N. Swamy and S. A. R. Ali. (1982). "Punching Shear Behavior of Reinforced Slab-Column Connections Made with Steel Fiber Concrete," 79(5), 392-406.
  15. A. Benter and S. Mindess. (1990). "Fiber-reinforced cementitious composites," Elsevier Science, London, 1-4.
  16. R. Narayanan and I. Y. S. Darwish. (1987). "Use of Steel Fibers as Shear Reinforcement," ACI Structural Journal, 84(3), 216-227.
  17. S. A. Ashour, G. S. Hasanain and F. F. Wafa. (1992). "Shear Behavior of High-Strength Fiber Reinforced Concrete Beams," ACI Structural Journal, 89(2), 176-184.
  18. Y. K. Kwak, M. O. Eberhard, W.S. Kim. (2002). "Shear strength of steel fiber-reinforced concrete beams without stirrups," ACI Structural Journal, 99(4), 530-538.
  19. H. J. Choi, K. K. Choi, O. C. Choi and Y. J. Hwang. (2012) "A Prediction Model of Shrinkage Cracking of Steel Fiber Reinforced Concrete", Architectural Institute of Korea Journal, 28(6), 59-66.
  20. R. Hameed, A. Turatsinz, F. Duprat, and A. Sellier. (2009). "Metalic fiber reinforced concrete : Effect of fiber aspect ratio on the flexural properties," ARPN Journal of engineering and applied science 4(5), 67-72.