Analysis of unsymmetrical reinforced concrete double corbels

Unsymmetrical reinforced concrete double corbels have different shear spans (a) in each side. ACI 318-14 provisions allow the structural analysis and design of double corbels through either shear friction (SF) method or the Strut-and-Tie modeling (STM). The current study presents analysis procedure...

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Bibliographic Details
Main Authors: Abdul-Razzaq, Khattab Saleem, Dawood, Asala A., Jalil, Ali Mustafa
Format: Conference Proceeding
Language:English
Subjects:
Concrete
Reinforced concrete
Shear
Structural analysis
Strut and tie models
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Summary:Unsymmetrical reinforced concrete double corbels have different shear spans (a) in each side. ACI 318-14 provisions allow the structural analysis and design of double corbels through either shear friction (SF) method or the Strut-and-Tie modeling (STM). The current study presents analysis procedure using both SF and STM. Numerical examples for analyzing unsymmetrical reinforced concrete double corbels with two different right to left shear span ratios (ar/al = 3 and 2) are also presented here in detail. It is concluded that reducing ar/al from 3 to 2 increases capacity by about 10.65% in case of SF, and 9.62% in case of STM. More specifically, in case of ar/al=2-3, capacity calculated by SF exceeds that calculated by STM by about 23-24%. Finally, it is also concluded that the mode of failure is not the same at both corbel sides, but in any case, the weaker side is the one who reports the failure.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0000051