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Title |
Evaluation of Crack Width Based on the Actual Bond Stress-Slip Relationship in Structural Concrete Members
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Keywords |
부착응력 ; 균열폭 ; 철근콘크리트 ; 미끌림 ; 균열안정화 |
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Abstract |
This paper presents an analytical model for evaluation of crack widths in structural concrete members. Th_e model is mathematically derived from the actual bond stress-slip relationships between the reinforcement and the surrounding concrete. and the relationships summarized in CEB-FlP Model Code 1990 are employed in this study together with the assumption of a linear slip distribution along the interface at the stabilized cracking stage. With these, the actual strains of the steel and the concrete are integrated respectively along the embedment length between the adjacent cracks so as to obtain the difference in the axial elongation. The model is applied to the test specimens available in literatures, and the predicted values are shown to be in good agreement with the experimentally measured data.
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