Shear capacity of reinforced concrete corbels using mechanism analysis

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2012Keyword
REF 2014Concrete structures
Beams
Girders
Shear failures
Mechanism analysis
Reinforced concrete corbels
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openAccess
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A mechanism analysis is developed to predict the shear capacity of reinforced concrete corbels. Based on shear failure observed in experimental tests, kinematically admissible failure mechanisms are idealised as an assemblage of two rigid blocks separated by a failure plane of displacement discontinuity. Shear capacity predictions obtained from the developed mechanism analysis are in better agreement with corbel test results of a comprehensive database compiled from the available literature than other existing models for corbels. The developed mechanism model shows that the shear capacity of corbels generally decreases with the increase of shear span-to-depth ratio, increases with the increase of main longitudinal reinforcement up to a certain limit beyond which it remains constant, and decreases with the increase of horizontal applied loads. It also demonstrates that the smaller the shear span-to-overall depth ratio of corbels, the more effective the horizontal shear reinforcement.Version
Accepted manuscriptCitation
Yang, KH and Ashour, AF (2012) Shear capacity of reinforced concrete corbels using mechanism analysis. Proceedings of the ICE - Structures and Buildings, 165 (3), 111-125.Link to Version of Record
https://doi.org/10.1680/stbu.2012.165.3.111Type
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.1680/stbu.2012.165.3.111