Bond Deterioration in Concrete Panels Under Load Cycles


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Title: Bond Deterioration in Concrete Panels Under Load Cycles

Author(s): Joseph M. Shipman and Kurt H. Gerstle

Publication: Journal Proceedings

Volume: 76

Issue: 2

Appears on pages(s): 311-326

Keywords: bond (concrete to reinforcement); concrete panels; cyclic loads; reinforced concrete;shearwalls.

Date: 2/1/1979

Serious discrepancies have been observed between predicted and measured response of reinforced concrete panels subject to load reversals; it was hypothesized that these differences might be attributed to the neglect of bond slip between steel and concrete in the earlier analysis. To investigate this hypothesis, the bond slip behavior between steel and concrete is described, based on earlier experimental and analytical studies, and incorporated in a finite element program. The results of this analysis including bond slip are compared to earlier test results, and appear to account for a fraction of the difference in response. The possibility that the remaining difference might be accounted for by including the deterioration of concrete under load cycles is pointed out.