Abstract
This work examines 14 beams with stirrups failing in shear, in addition to 107 from the literature. These include high-strength (HSC) beams and normal strength concrete (NSC) beams. It is shown that using ACI Building Code Equation for concrete contribution is conservative for both HSC and NSC over a wide range of the pricipal variables; concrete compressive strength; stirrup nominal strength; longitudinal steel ratio; and shear span-to-depth ratio. However, a higher coefficient of variation (COV) is obtained using the more conservative Canadian code simple design alternative. A proposed design method is also discussed that is conservative with a lower COV than the ACI Equation.
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