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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.11 No.2
- 발행연도
- 2017.6
- 수록면
- 229 - 245 (17page)
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초록· 키워드
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Post-earthquake observations revealed that seismic performance of beam-column connections in precast concrete structures affect the overall response extensively. Seismic design of precast reinforced concrete structures requires improved beamcolumn connections to transfer reversed load effects between structural elements. In Turkey, hybrid beam-column connections with welded components have been applied extensively in precast concrete industry for decades. Beam bottom longitudinal rebars are welded to beam end plates while top longitudinal rebars are placed to designated gaps in joint panels before casting of topping concrete in this type of connections. The paper presents the major findings of an experimental test programme including one monolithic and five precast hybrid half scale specimens representing interior beam-column connections of a moment frame of high ductility level. The required welding area between beam bottom longitudinal rebars and beam-end plates were calculated based on welding coefficients considered as a test parameter. It is observed that the maximum strain developed in the beam bottom flexural reinforcement plays an important role in the overall behavior of the connections. Two additional specimens which include unbonded lengths on the longitudinal rebars to reduce that strain demands were also tested. Strength, stiffness and energy dissipation characteristics of test specimens were investigated with respect to test variables. Seismic performances of test specimens were evaluated by obtaining damage indices.
목차
Abstract
1. Introduction
2. Experimental Study
3. Experimental Results
4. Evaluation of Experimental Results
5. Conclusions
References
참고문헌 (39)
참고문헌 신청
ACI 318. (2011). Building code requirements for structural concrete and commentary. American Concrete Institute. Farmington Hills, MI: American Concrete Institute.
ACI 352R. (2002). Recommendations for design of beam-column connections in monolithic reinforced concrete structures. Farmington Hills, MI: American Concrete Institute.
ACI 374.1. (2005). Acceptance criteria for moment frames based on structural testing and commentary. Farmington Hills, MI: American Concrete Institute.
ACI 550.2R. (2013). Design guide for connections in precast jointed systems. Farmington Hills, MI: American Concrete Institute.
ACI ITG/T1.2. (2003). Special hybrid moment frames composed of discretely jointed precast and post-tensioned concrete member and commentary. Farmington Hills, MI: American Concrete Institute.
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