콘크리트학회논문집 (Journal of the Korea Concrete Institute)

  • 제27권6호
  • /
  • Pages.603-613
  • /
  • 2015
  • /
  • 1229-5515(pISSN)
  • /
  • 2234-2842(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
권호 표지
DOI QR코드

DOI QR Code

최소 전단철근 대용으로의 강섬유 콘크리트의 전단기여도 평가

Evaluation on Shear Contribution of Steel Fiber Reinforced Concrete in Place of Minimum Shear Reinforcement

  • Kim, Chul-Goo (Dept. of Architecture & Architectural Engineering, Seoul National University) ;
  • Park, Hong-Gun (Dept. of Architecture & Architectural Engineering, Seoul National University) ;
  • Hong, Geon-Ho (Dept. of Architectural Engineering, Hoseo University) ;
  • Kang, Su-Min (Dept. of Architectural Engineering, Chungbuk National University)
  • 투고 : 2014.11.18
  • 심사 : 2015.08.17
  • 발행 : 2015.12.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

현행 콘크리트 구조기준에는 전단파괴의 취성적 특성을 고려하여 휨 부재에 최소전단철근을 배근하도록 규정하고 있고, 강섬유 보강 콘크리트 사용시 강섬유가 최소전단철근을 대신하여 사용가능하도록 허용하고 있다. 본 연구에서는 이러한 최소전단철근과 강섬유가 전단강도에 미치는 영향을 단순지지 보 실험을 통해 분석하였다. 실험결과를 살펴보면, 강섬유 보강이 최소 전단철근보다 전단강도에 미치는 영향이 크게 나타났고 특히, 고강도콘크리트가 사용된 경우 강섬유 효과가 크게 발휘되었다. 강섬유 콘크리트의 특성을 살펴보기 위해 기존 실험 자료를 분석하였고 현행 기준에 사용되고 있는 최소전단철근 대용으로의 강섬유 보강 콘크리트 보의 적절성을 평가하였다.

In current design codes, minimum shear reinforcement is required for reinforced concrete flexural members, and the use of steel fiber reinforced concrete is permitted to replace the minimum shear reinforcements. In the present study, to estimate the effects of shear reinforcements and fibers on shear strength, simply supported beams were tested under transverse loading. The test results showed that the shear strength was significantly increased by the use of fibers. Particularly, the effect of fiber reinforced concrete was pronounced when high-strength concrete was used. The performance of fiber reinforced concrete for minimum shear reinforcement was evaluated using results of the present study and existing tests.

키워드

참고문헌

  1. ACI Committee 318, "Building Code Requirements for Structural Concrete (ACI 318M-11) and Commentary", American Concrete Institute, Farmington Hills, MI, 2011.
  2. MacGregor, J. G., and Wight, J. K., "Reinforced concrete: mechanics and design", Prentice Hall, 1997, pp.237-238.
  3. Batson, G., Jenkins, E., and Spatney, R., "Steel Fibers as Shear Reinforcement in Beams", ACI Journal Proceedings, Vol.69, No.10. Oct. 1972, pp.640-644.
  4. Swamy, R., and Bahia, H., "The Effectiveness of Steel Fibers as Shear Reinforcement", Concrete International, Vol.7, No.3. Mar. 1985, pp.35-40.
  5. Sharma, A., "Shear Strength of Steel Fiber Reinforced Concrete Beams", ACI Journal Proceedings, Vol.83, No.4. July-Aug. 1986, pp.624-628.
  6. Mansur, M., Ong, K., and Paramasivam, P., "Shear Strength of Fibrous Concrete Beams without Stirrups", Journal of Structural Engineering, Vol.112, No.9. 1986, pp.2066-2079. https://doi.org/10.1061/(ASCE)0733-9445(1986)112:9(2066)
  7. Narayanan, R., and Darwish, I., "Use of Steel Fibers as Shear Reinforcement", ACI Structural Journal, Vol.84, No.3. May-June 1987, pp.216-227.
  8. Ashour, S. A., Hasanain, G. S., and Wafa, F. F., "Shear Behavior of High-Strength Fiber Reinforced Concrete Beams", ACI Structural Journal, Vol.89, No.2. Mar. - April 1992, pp.176-184.
  9. Li, V. C., Ward, R., and Hmaza, A. M., "Steel and Synthetic Fibers as Shear Reinforcement", ACI Materials Journal, Vol.89, No.5. Sep. - Oct. 1992, pp.499-508.
  10. Tan, K., Murugappan, K., and Paramasivam, P., "Shear Behavior of Steel Fiber Reinforced Concrete Beams", ACI Structural Journal, Vol.90, No.1. Jan. - Feb. 1993, pp.3-11.
  11. Oh, B. H., Lim, D. H., and Lee, H. J., "Shear Behavior and Shear Analysis of Reinforced Concrete Members Containing Steel Fibers", Journal of the Korea Concrete Institute, Vol.5, No.2. June 1993, pp.171-180.
  12. Moon, J. K., and Hong, I. P., "Steel Fibers Efficiency as Shear Reinfocement in Concrete Beams", Journal of the Korea Concrete Institute, Vol.6, No.2. April 1994, pp.118-128.
  13. Sim, J. S., Lee, C. D., Kim, G. S., and Oh, H. S., "Experimental Study on the Shear Behavior of Reinforced Hooked-Steel-Fiber Concrete Beams", Journal of the Korea Concrete Institute, Vol.7, No.5. Oct. 1995, pp.179-188.
  14. Adebar, P., Mindess, S., Pierre, D. S., and Olund, B., "Shear Tests of Fiber Concrete Beams without Stirrups", ACI Structural Journal, Vol.94, No.1. Jan. - Feb. 1997, pp.68-76.
  15. Imam, M., Vandewalle, L., Mortelmans, F., and Van Gemert, D., "Shear Domain of Fibre-Reinforced High-Strength Concrete Beams", Engineering structures, Vol.19, No.9. 1997, pp. 738-747. https://doi.org/10.1016/S0141-0296(96)00150-2
  16. Khuntia, M., Stojadinovic, B., and Goel, S. C., "Shear Strength of Normal and High-Strength Fiber Reinforced Concrete Beams without Stirrups", ACI Structural Journal, Vol.96, No.2. Mar. - April 1999, pp.282-289.
  17. Kwak, K. H., Park, J. G., and Jeoung, T. Y., "Shear Strength of High Strength Concrete Beams with Steel Fibrous", Journal of the Korea Concrete Institute, Vol.12, No.4. Aug. 2000, pp.23-30. https://doi.org/10.22636/JKCI.2000.12.4.23
  18. 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. Jul. - Aug. 2002, pp.530-538.
  19. Cucchiara, C., La Mendola, L., and Papia, M., "Effectiveness of Stirrups and Steel Fibres as Shear Reinforcement", Cement and Concrete Composites, Vol.26, No.7. 2004, pp.777-786. https://doi.org/10.1016/j.cemconcomp.2003.07.001
  20. Oh, Y. H., and Kim, J. H., "Estimation of Flexural and Shear Strength for Steel Fiber Reinforced Flexural Members without Shear Reinfocements", Journal of the Korea Concrete Institute, Vol.20, No.2. April 2008, pp.257-267. https://doi.org/10.4334/JKCI.2008.20.2.257
  21. Dinh, H. H., Parra-Montesinos, G. J., and Wight, J. K., "Shear Behavior of Steel Fiber-Reinforced Concrete Beams without Stirrup Reinforcement", ACI Structural Journal, Vol.107, No.5. Sep. - Oct. 2010, pp.597-606.
  22. Minelli, F., and Plizzari, G. A., "On the Effectiveness of Steel Fibers as Shear Reinforcement", ACI Structural Journal, Vol.110, No.3. May - June 2013, pp.379-389.
  23. Parra-Montesinos, G. J., "Shear Strength of Beams with Deformed Steel Fibers", Concrete International, Vol.28, No.11. Nov. 2006, pp.57-66.
  24. Korea Concrete Institute, "Concrete Design Code and Commentary", Kimoondang Publishing Company, Seoul, Korea, 2012.
  25. ACI Committee 544, "Design Considerations for Steel Fiber Reinforced Concrete", ACI Structural Journal, Vol.85, No.5. 1988, pp. 1-18.
  26. Park, H. G., Choi, K. K., and Wight, J. K., "Strain-based shear strength model for slender beams without Web reinforcement", Aci Structural Journal, Vol.103, No.6, Nov-Dec. 2006, pp. 783-793.
  27. Elzanaty, A. H., Nilson, A. H., and Slate, F. O., "Shear Capacity of Reinforced Concrete Beams Using High-Strength Concrete", ACI Structural Journal, Vol.83, No.2. Mar.-Apr. 1986, pp. 290-296.
  28. Kim, C. G., Park, H. G., Hong, G. H., and Kang, S. M., "Shear strength of Hybrid Beams Combining Precast Concrete and Cast-In-Place Concrete", Journal of the Korea Concrete Institute, Vol.25, No.2, 21013, pp.175-185. https://doi.org/10.4334/JKCI.2013.25.2.175
  29. Lim, T., Paramasivam, P., and Lee, S., "Shear and Moment Capacity of Reinforced Steel-Fibre-Concrete Beams", Magazine of Concrete Research, Vol.39, No.140. 1987, pp.148-160. https://doi.org/10.1680/macr.1987.39.140.148
  30. Narayan, R., and Darwish, I., "Fiber Concrete Deep Beams in Shear", ACI Structural Journal, Vol.85, No.2. March - April 1988, pp.141-149.
  31. Swamy, R. N., Jones, R., and Chiam, A. T., "Influence of Steel Fibers on the Shear Resistance of Lightweight Concrete I-Beams", ACI Structural Journal, Vol.90, No.1. Jan. - Feb. 1993, pp.103-114.
  32. Noghabai, K., "Beams of Fibrous Concrete in Shear and Bending: Experiment and Model", Journal of structural engineering, Vol.126, No.2. Feb. 2000, pp.243-251. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:2(243)
  33. Rosenbusch, J., and Teutsch, M., "Trial Beams in Shear", Brite/euram project. 2002, pp.97-4163.
  34. Oh, J. G., Lee, K. S., and Shin, S. W., "Shear Mechanism of Steel-Fiber Reinforced High Strength Concrete Beams without Shear Confinement", Journal of the Korea Concrete Institute, Vol.3, No.3. Sep. 1991, pp.141-148.
  35. CSA, "Design of Concrete Structures", Canadian Standard Association, Rexdale, Ontario, Canada, 2004, pp.53-66.
  36. Eurocode2, "Design of Concrete Structures: Part 1-1: General Rules and Rules for Buildings", British Standards Institution, British Standards Institution, 2004, pp.29, 84-94.