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Title |
Effective Compressive Strength of Corner Columns with Intervening Normal Strength Slabs
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DOI |
http://dx.doi.org/10.11112/jksmi.2015.19.3.122 |
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Keywords |
모서리 기둥 ; 접합부 ; 고강도 콘크리트 ; 유효압축강도 ; 예측모델 Corner column ; Connection ; High-strength concrete ; Effective compressive strength ; Prediction model |
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Abstract |
In this study, a prediction model for the effective compressive strength of corner columns with intervening normal strength concrete slabs was developed. A structural analogy between high-strength concrete column-normal strength concrete slab joint and brick masonry was used to develop the prediction model. In addition, the aspect ratio of slab thickness to column dimension was considered in the models. The reliability of the new prediction model was evaluated by comparison with experimental results and its superiority was demonstrated by comparison with previous models proposed by design codes and other researchers. As a result, with average test-to-predicted ratios of 1.09, a standard deviation of 0.15, the newly developed equation provided superior predictions in terms of accuracy and consistency over all of the existing effective strength prediction approaches including KCI structural concrete design code (201.
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