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Title |
Evaluation of Creep Models with the Consideration of Concrete’s Strength Level
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Keywords |
크리프 ; 크리프계수 ; 크리프모델 ; ACI 209R ; CEB-FIP MC90 ; EC2 Creep ; Creep coefficient ; Creep model ; ACI 209R ; CEB-FIP MC90 ; EC2 |
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Abstract |
Recent concrete structures have been being constructed with higher strength concrete than normal strength concrete. Therefore, it is necessary to review the applicabilities of current design codes and models for the prediction of mechanical behaviors of concrete materials such as creep. To investigate the applicability of creep model with the consideration of the strength level of concrete, three current models (ACI 209R, CEB-FIP MC90 and EC2) were studied and compared with series of experimental results. It was shown that EC2 model which is the updated model of CEB-FIP MC90 better predicts creep coefficient for high strength level concretes and showed relatively good agreements with experimental data.
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