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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Shear Response under Reversed Cyclic Loading
Author(s): David M. Ruggiero, Evan C. Bentz, Gian Michele Calvi, and Michael P. Collins
Publication: Structural Journal
Appears on pages(s): 1313-1324
Keywords: crack closing; crack slip; reinforced concrete; reversed cyclic loading; shear behavior; shell element tester
Abstract:A series of three shear panels with transverse reinforcing ratios ranging from 0.23 to 0.68% were tested to failure under reversed cyclic loading. All of the tests showed a reduction in strength of at least 20% with respect to predictions from reliable monotonic analyses. Extensive experimental results including strain distributions and cracking patterns were analyzed to explain this discrepancy, and it was determined that shear behavior under reversed cyclic conditions is not well captured by a single rotating crack model; rather, explicit consideration of both diagonal crack systems is required. This analysis has shown that the behavior can be rationally explained by considering the evolution of crack slip and crack closing hysteresis.
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