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ISSN : 2233-8292

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Vol.15 No.1
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형상을 개선한 강섬유보강 숏크리트의 현장 적용성에 관한 기초적 연구

A fundamental study on the field applicability of the improved shape steel fiber shotcrete

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2013, v.15 no.1, pp.59-68
김상환 (호서대학교)
허청 (호서대학교)
김상환, & 허청. (2013). 형상을 개선한 강섬유보강 숏크리트의 현장 적용성에 관한 기초적 연구. (사)한국터널지하공간학회, 15(1), 59-68.
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초록

본 연구에서는 새로운 형태의 강섬유로 보강된 숏크리트의 현장 적용성을 평가하기 위한 기초연구로 형상을 개선한 강섬유의 이론적 검토 및 역학적 특성실험을 실시하였다. 강섬유보강 숏크리트 강도에 영향을 주는 강섬유 부착계수 식을 이용하여 형상을 개선한 강섬유의 부착계수를 구하고 후크형 강섬유와 형상을 개선한 강섬유를 비교하였다. 역학적 특성실험에 사용한 시료는 기존의 후크형 강섬유보강 숏크리트 및 형상을 개선한 강섬유보강 숏크리트이며, 이들 시료를 이용해서 역학적 특성을 분석하기 위해 리바운드 실험을 실시하였다. 실험결과를 통해 형상을 개선한 강섬유보강 숏크리트가 기존 강섬유보강 숏크리트에 비해 강도특성이 향상됨을 확인했다.

keywords
Shotcrete, New-type steel fiber, Steel fiber sticking coefficient, Laboratory scaled shotcrete rebound test, 숏크리트, 새로운 형태 강섬유, 강섬유 부착계수, 실내 리바운드 실험

Abstract

This paper presents the fundamental study on the field applicability of new-type steel fiber improved the existing shape. In this study, the theoretical reviews and the laboratory test programs were carried out to evaluate the mechanical characteristic of the new-type of steel fiber. The steel fiber sticking coefficient of new-type steel fiber was estimated from the test results. The laboratory scaled shotcrete rebound tests were also performed to analysis the field applicability of New-type steel fiber shotcrete and the mechanical behaviour of New-type steel fiber shotcrete were compared with that of the existing steel fiber shotcrete. It was found that the strength characteristic of New-type steel fiber shotcrete was increased.

keywords
Shotcrete, New-type steel fiber, Steel fiber sticking coefficient, Laboratory scaled shotcrete rebound test, 숏크리트, 새로운 형태 강섬유, 강섬유 부착계수, 실내 리바운드 실험

참고문헌

1.

1. Kim, S.H., Youn, S.K. (2009), “A study on pull-out behaviour of different types of steel fiber”, The Korean Society of Civil Engineers Annual Conference, pp. 1035-1039.

2.

2. Kim, S.H. Youn, S.K. (2010), “A study on pull-out behaviour of different types of Shotcrete steel fiber”, Tunnel Engineering of Korea, Chapter13, Issue # 1, pp. 51-59.

3.

3. Kim, S.H, Park, I.J., Kim, J.T. (2011), “The strength characteristic of shotcrete reinforced with improved shape steel fiber”, Journal of the Korean Geotechnical Society, Chapter 27, Issue #12, pp. 127-136.

4.

4. Paik, S.W., Kim, D.B. (1996), “An experimental study on the steel fiber reinforced shotcrete”, Journal of the Korean Society of Civil Engineers, Chapter 16, Issue #3, pp. 217-226.

5.

5. Jeon, C.K., Jeon, J.K. (2011) “Properties of advanced synthetic fiber reinforced concrete for improvement of tunnel shotcrete performance” Journal of the KOSDI Chapter 17, Issue #1, pp. 43-50.

6.

6. An, M.H. (2009), “A study on the characteristics of half-moon shape reinforced steel fiber shotcrete through laboratory model tests”, Sangji University, pp. 42-44.

7.

7. Lee, S.H., Kim, S.H., Bae, G.J., Chung H.S. (2006), “A study on propriety steel fiber contents of steel fiber shotcrete at tunnel construction”, The Korean Society of Civil Engineers Annual Conference, pp. 4262-4265.

8.

8. Jeon, C.K. (1992), “Fiber type effects on the flexural behavior of steel fiber reinforced concrete beams”, Journal of the Korean Society of Civil Engineers, Chapter 12, Issue #4, pp. 95-106.

9.

9. Lee, D.H., Hwang, J.H., Ju, H. Kim, K.S., Daniel A. Kuchma. (2012), “Nonlinear finite element analysis of steel fiber-reinforced concrete members using direct tension force transfer model”, Finite Elements in Analysis and Design 50, pp. 266-286.

10.

10. Lee, H.H., Keon, Y.H., Jung, H.S. (2003), “Determination of optimum reinforcing ratio considering steel fiber shape and volume fraction ratio”, Journal of the KOSDI, Spring National Conference.

11.

11. Korea Expressway Corporation (2003, 2009), “Professional specifications”

12.

12. Narayanan, R., Darwish, I.Y.S. (1987), “Use of steel fibers as shear reinforcement”, American Concrete Institute, Volume 84, Issue#3, pp. 216-227.

13.

13. Narayanan, R., Darwish, I.Y.S. (1988), “Shear in mortar beams containing fibers and fly ash”, Journal of Structural Engineering, volume 114, Issue#1, pp. 84-102.

14.

14. Cunha, M.C.F., Barros, A.O., Sena-Cruz, M. (2007), “Pullout behaviour of hooked-end steel fibres in self-compacting concrete”, American Concrete Institute, V4.1, 0049.

15.

15. Kützing, L. (2000): Tragfähigkeitsermittlung stahlfaserverstärkter Betone, PhD-thesis, University of Leipzig, Teubner Verlag, Stuttgart (in German), ISBN: 3519052679.

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