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Calculate Reinforcement For The Stem Of A Concrete
Cantilever Retaining
Wall: |
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Calculation: |
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Designer/Checker: |
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Input: |
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(Note: All input Metric units are converted to English units
for the equations below and then the output English units are converted back to
Metric) |
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Yield strength of the steel reinforcement, (fy - ksi or kPa) |
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(Use 40 ksi for Grade 40 or 48 ksi for Grade 60) |
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Concrete compressive strength, (f'c- psi or kPa) |
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Distance to the horizontal resultant (Dh - ft or m) |
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Horizontal soil resultant on the wall (Rh - kip/ft or N/m) |
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Width of base of stem (h - in or cm) |
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Distance from outside face of concrete to center of steel (Cvr - in or cm) |
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Distance to the soil surcharge resultant (Dss - ft or m) |
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Horizontal resultant from soil surcharge (Rss - kip/ft or N/m) |
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Height of the Stem (Hs - ft or m) |
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Output: |
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Ratio of stress block depth to effective depth, ku = |
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Area of steel required, As = |
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Shear capacity, 0.85Vc = |
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Shear force at distance d on stem, Vu = |
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Minimum reinforcement ratio, pmin = |
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Maximum reinforcement ratio, pmax = |
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Reinforcement ratio, p = |
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If pmin < p < pmax then ductility adequate. |
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Temperature shrinkage reinforcement, Astemp = 0.0018bh = |
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