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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.12 No.5
- 발행연도
- 2018.7
- 수록면
- 665 - 681 (17page)
이용수
초록· 키워드
오류제보하기
Apart from its recognized strengthening effect for shear loading, the presence of stirrups in reinforced concrete results in an increase of the ductility of structural members and in the capacity of reaching higher longitudinal compressive stress levels provided by transversal confinement. These effects are usually represented phenomenologically in fibre beam models by artificially increasing the compressive strength and the ultimate compressive strain of concrete. Two numerical formulations for layered beam descriptions accounting explicitly for transversal confinement are implemented and assessed in this contribution. The influence of stirrups is incorporated by means of a multi-dimensional yield surface for concrete, combined with equilibrium constraints for the transversal direction involving concrete and steel stirrups, and with a concrete ultimate strain dependent on the hydrostatic stress. This contribution focuses on the numerical formulations of both frameworks, and on their assessment against experimental results available in the literature.
목차
Abstract
1. Introduction
2. Computational Framework
3. Assessment with Respect to Experimental Results
4. Discussion
5. Conclusion and Perspectives
References
참고문헌 (55)
참고문헌 신청
Ahmad, S. M., & Shah, S. P. (1982). Complete triaxial stress?strain curves of concrete confined by spiral reinforcement. Journal of the Structural Division ASCE, 108, 728?742.
Bao, J. Q., Long, X., Tan, K. H., & Lee, C. K. (2013). A new generalized Drucker? Prager flow rule for concrete under compression. Engineering Structures, 56, 2076?2082.
Battini, J.-M. (2002) Corotational beam elements in instability problems (PhD thesis, Royal Institute of Technology).
Biolzi, L., Cattaneo, S., & Mola, F. (2014). Bending-shear response of self-consolidating and high-performance reinforced concrete beams. Engineering Structures, 59, 399?410.
Breveglieri, M., Aprile, A., & Barros, J. A. O. (2015). Embedded through-section shear strengthening technique using steel and CFRP bars in RC beams of different percentage of existing stirrup. Computers and Structures, 126, 101?113.
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