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Title |
Structural Behavior of Beam-Column Joints of Post-Tensioned Precast Concrete System
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Authors |
김재현(Jae-Hyun Kim); 최승호(Seung-Ho Choi); 황진하(Jin-Ha Hwang); 김강수(Kang Su Kim); 우운택( Woon-Taek Woo) |
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DOI |
https://doi.org/10.4334/JKCI.2019.31.3.277 |
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Keywords |
보-기둥 접합부; 프리스트레스트 콘크리트; 포스트텐션; 프리캐스트 콘크리트; 내진성능평가 beam-column joints; prestressed concrete; post tensioning; precast concrete; seismic performance evaluation |
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Abstract |
The integrity of the joints in precast members can be greatly enhanced by applying a post-tensioning method. In this study, full-scaled post-tensioned precast beam-column joint specimens were fabricated and tested under reversed cyclic loading with the variables of presence of slab, application of multi or mono strands, presence of grouting, and post-tensioned lengths. The maximum strengths of all the specimens properly satisfied the design strengths presented in the design code (KCI 2012). In addition, seismic performance was evaluated based on the acceptance criteria presented in the ACI 374.1-05 and it was confirmed that most of the specimens satisfied the acceptance criteria.
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