Abstract The paper presents the results of an experimental investigation of the behavior of RC interfaces subjected to cyclically imposed shear slips. Several parameters are examined, namely, the embedment length of the interface reinforcement (consisting of reinforcing bars), the diameter of bars and the percentage of reinforcement, as well as the loading history imposed on the interfaces. The experimental results have shown that embedment lengths smaller than the development length of bars lead to unfavorable failure modes, as well as to small interface resistance. Independently of the values of the examined parameters, cycling of shear slips led to significant force response degradation during the third cycle, at least equal to 40%, as compared to the response of the first cycle. This is a typical feature that should be adequately taken into account in the design of interfaces expected to be subjected to cyclic deformations.
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