최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기콘크리트학회논문집 = Journal of the Korea Concrete Institute, v.27 no.5, 2015년, pp.521 - 530
최현기 (경남대학교 소방방재공학과) , 배백일 (한양대학교 산업과학연구소) , 최창식 (한양대학교 건축공학부)
Design of fiber reinforced ultra-high strength concrete members should be verified with analytical or experimental methods for safety. Members with compressive strength larger than limitation of current design code usually be designed with analytical verification using stress-strain relation of conc...
* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.
핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
콘크리트의 일반적 특징은 무엇인가? | 콘크리트는 압축강도가 높아질수록 탄성영역이 넓어지며 최대강도 발현 이후의 하중지지능력 감소가 급격하게 이루어진다는 것은 일반적으로 잘 알려진 사항이다. 고강도 콘크리트의 이러한 특징은 최대강도 발현시 변형률의 크기와 상승 및 하강곡선의 형태로 나타나며 이 변수들 또한 콘크리트의 압축강도 시험 결과에 대한 분석을 통해 결정된다. | |
일반적으로 사용되는 섬유 보강 고강도 콘크리트의 기계적 성질은 무엇인가? | 특히, 섬유가 혼입된 고강도 콘크리트를 사용할 때에는 이러한 성질들에 대한 평가가 필수적으로 수반되어야 한다. 일반적으로 성능기반설계에 사용되는 섬유 보강 고강도 콘크리트의 기계적 성질은 콘크리트의 인장강도와 응력-변형률 관계이다. 기존 연구 결과2-11)를 통해 도출되고 현재 다방면으로 사용중인 응력-변형률 모델은 실용식으로, 실험을 통해 결정되는 계수를 기반으로 구축되었다. | |
실용식 응력-변형률 모델의 한계점은 무엇인가? | 기존 연구 결과2-11)를 통해 도출되고 현재 다방면으로 사용중인 응력-변형률 모델은 실용식으로, 실험을 통해 결정되는 계수를 기반으로 구축되었다. 이는 모델의 구축에 사용된 재료 시험 조건에 따라 사용 가능한 명확한 강도의 제한이 있으므로 최근 성능기반설계기법을 사용하여 설계되는 초고강도 콘크리트 및 섬유보강 콘크리트의 기계적 특성 정의에는 사용하기 어려울 수 있다. 따라서 본 연구에서는 섬유로 보강된 고강도 콘크리트의 설계에 적용하기 위해, 현재 사용되고 있는 실험식들의 한계를 벗어나도 사용 가능한 응력-변형률 관계의 기반이 될 수 있는 기계적 특성의 추정식을 도출하고자 한다. |
Korea Concrete Institute, Concrete Design Code and Commentary, Kimoondang Publishing Company, Seoul, Korea, 2012, pp.600.
Popovics, S., A Numerical Approach to the Complete Stress- Strain Curve of Concrete, Cement and Concrete Research, Vol.3, No.5, 1973, pp.583-599.
Sargin, M., Stress-Strain Relationship for Concrete and the Analysis of Structural Concrete Sections, Study 4, Solid Mechanics Division; University of Waterloo, Waterloo, Canada, 1971. pp.167.
Tomaszewicz, A., Betongens Arbeidsdiagram, SINTEF, STF65, A84065, Trondheim, 1984.
Carreira, D. J. and Chu, K. D., Stress-Strain Relationship for Plain Concrete in Compression, ACI Journal, Proc. Vol.82, No.6, 1985, pp.797-804.
Collins, M. P., Mitchell, D., and MacGregor, J. G., Structural Design Considerations for High-Strength Concrete, Concrete International : Design and Construction, Vol.15, No.5, 1993, pp.27-34.
Wee, T. H., Chin, M. S., and Mansur, M. A., Stress-Strain Relationship of High-Strength Concrete in Compression, Journal of Materials in Civil Engineering, Vol.8, No.2, 1996, pp.70-76.
Wang, P. T., Shah, S. P., and Naaman, A. E., Stress-Strain Curves of Normal and Lightweight Concrete in Compression, ACI Journal Proceedings, Vol.75, No.1978, pp.603-611.
Comite' Euro-International du Be'ton-Fe'de'ration Internationale de la Pre' contrainte. High Performance Concrete-Recommended Extensions to the Model Code 90, Research Needs. CEB, Bulletin dInformation 228. Lausanne, 1995, pp.60.
Attard, M. M. and Setunge, S., Stress-strain relationship of confined and unconfined concrete. ACI Materials Journal, Vol.93, No.5, 1996, pp.432-442.
Benjamin, A., Graybeal, Compressive Behavior of Ultra-High- Performance Fiber-Reinforced Concrete, ACI Materials Journal, Vol.104, No.2, 2007, pp.146-152.
Ros, M., Material-technological foundation and problems of reinforced concrete (Eidgenossische Materialprfifungs und Versuchsanstalt fur Industrie, Bauwesen and Gewerbe), Bericht No.162 , Zurich, Switzerland, 1950. pp.314.
Fafitis, A. and Shah, S. P., Predictions of ultimate behavior of confined columns subjected to large deformations, Ibid 82, No.4, 1985, pp.423-433.
De Nocolo, B., Pani, L., and Pozzo, E., Strain of concrete at peak compressive stress for a wide range of compressive strengths, Materials and Structures, Vol.27, 1994, pp.206-210.
European Commitee for Standardization (CEN), Design of concrete structures-Part 1-1: General rules and rules for buildings. Eurocode 2, Brussels, Belgium. 2004, pp.225.
Soroushian, P. and Lee, C. H., Constitutive Modeling of Steel Fiber Reinforced Concrete under direct Tension and Compression. Fibre Reinforced Cements and Concretes : Recent Developments. Proceedings of an International Conference held at The University of Wales, Collige of Cardiff, School of Engineering, United Kingdom, Sep, 18-20, 1989.
Nataraja, M. C., Dhang, N., and Gupta, A. P., Stress-strain curves for steel-fiber reinforced concrete under compression, Cement and Concrete Composites, Vol.21, No.5-6, 1 December 1999, pp.383-390.
Dhakal, R. P., Wang, C., and Mander, J. B., Behavior of steel fibre reinforced concrete in compression. Nanjing: International Symposium on Innovation & Sustainability of Structures in Civil Engineering, Nov 2005.
Korea Concrete Institute, Concrete Design Code and Commentary, Kimoondang Publishing Company, Seoul, Korea, 2007, pp.523.
ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318-11) and Commentary, American Concrete Institute, Farmington Hills, Mich., 2011, pp.391.
Salvador Martinez, Arthur H. Nilson, and Floyd 0. Slate, Spirally Reinforced High-Strength Concrete Columns, ACI Journal, 1984, Vol.81, No.5, pp.431-442.
Cook, J. E., 10,000 PSI Concrete. Concrete International: Design and Construction, Oct.989, Vol.11, No.10, pp.67-75.
Ahmad, Shuaib H. and Shah, Surendra P., Complete Triaxial Stress-Strain Curves for Concrete, Proceedings, ASCE, Vol.108, ST4, Apr. 1982, pp.728-742.
Gao, J., Sun, W., and Morino, K., Mechanical properties of steel fiber reinforced high strength light weight concrete., Cement Concrete Composite, Vol.19, pp.307-313.
Padmarajaiah, S. K., Influence of fibers on the behavior of high strength concrete in fully/partially prestressed beams : an experimental and analytical study, Ph.D. thesis, Indian Institute of Science, Bangalore, India. 1999.
KS L 5111, Flow table for use in tests of hydraulic cement, Korean Agency for Technology and Standards, 2007. pp.1-5.
KS F 2405, Standard Test Method for Compressive Strength of Concrete, Korean Agency for Technology and Standards, 2010. pp.1-16.
Perera, S. V. T. J., Mutsuyoshi, H., and Asamoto, S., Properties of High-Strength Concrete, Proc. of 12th International Summer Symposium of Japan Society of Civil Engineers (JSCE), Funabashi-Japan, 2010.
Kaiss, F. Sarsam, Ihsan, A. S., Al-Shaarbaf, Maha, M. S., Ridha, Experimental Investigation of Shear-Critical Reactive Powder Concrete Beams withoutWeb Reinforcement, Eng. &Tech. Journal, Vol.30, No.17, 2012, pp.2999-3022.
Dawood Abdulhai Pandor, Behavior of High Strength Fiber Reinforced Concrete Beams in shear, Thesis of Master of Science, Massachusetts institute of technology, Feb, 1994, pp.124.
Job Thomas and Ananth Ramaswamy, Mechanical Properties of Steel Fiber-Reinforced Concrete, Journal of Materials in Civil Engineering, Vol.19, No.5, May 1, 2007, pp.385-392.
Bhargava, P., Sharma, U. K., and Kaushil, K., Compressive stress-strain behavior of small scale steel fibre reinforced high strength concrete cylinders. Journal of Advanced Concrete Technology, Vol.14, No.1, 2006, pp.109-21.
Ou, Y. C., Tsai, M. S., Liu, K. Y., and Chang, K. C., Compressive Behavior of Steel-Fiber-Reinforced Concrete with a High Reinforcing Index, Journal of Materials in Civil Engineering, Vol.24, No.2, February 1, 2012, pp.207-215.
A. Samer Ezeldin, Perumalsamy N. Balaguru, Normal- and High-Strength Fiber Reinforced Concrete under Compression, Journal of Materials in Civil Engineering, Vol.4, No.4, November, 1992., pp.415-429.
Jo, B. W., Shon, Y. H., and Kim, Y. J., The Evalution of Elastic Modulus for Steel Fiber Reinforced Concrete, Russian Journal of Nondestructive Testing, Vol.37, No.2, 2001, pp.152D161. Translated from Defektoskopiya, No.2, 2001, pp.87D96.
Obata Kazuhiro, Sugano Shunsuke, Araki Hideo, Kitakaze Nobu, Murakami Yuichi, Shirai Kazuyoshi, and Kimura Hideki, An experimental study on the compressive properties of the super-high strength concrete, Architectural Institute of Japan, China Branch, Research report collection, Vol.25, March, 2002, pp.329-332.
Ramachandra Murthy, A., Nagesh R. Iyer, and B. K. Raghu Prasad, Evaluation of mechanical properties for high strength and ultrahigh strength concretes, Advances in Concrete Construction, Vol.1, No.4, 2013, pp.341-358.
Nageh, N., Meleka, Alaa A. Bashandy, Mohamed A. Arab, Ultra High Strength Concrete Using Economical Materials, International Journal of Current Engineering and Technology, Vol.3, No.2, June 2013, pp.393-402.
Moldovan, D. and Magureanu, C., Stress-Strain Diagram For High Strength Concrete Elements In Flexure, Proc. 3rd Int. Conference, Advanced Composite Materials Engineering, CONMAT 2010, 27-29 October 2010, Brasov, Romania, Transilvania University Press of Brasov, pp.137-142.
Wasan, I. Khalil and Tayfur Y. R., Flexural Strength of Fibrous Ultra High Performance Reinforced Concrete Beams, ARPN Journal of Engineering and Applied Sciences, Vol.8, No.3, MARCH 2013, pp.200-21431.
Narayanan, R. and Darwish, I. Y. S., Use of Steel Fibers as Shear Reinforcement, ACI Structural Journal, Vol.84, No.3, 1987, pp.216-227.
*원문 PDF 파일 및 링크정보가 존재하지 않을 경우 KISTI DDS 시스템에서 제공하는 원문복사서비스를 사용할 수 있습니다.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.