Question
Download Solution PDFLimiting percentage of steel (pt, lim) for M20 grade of concrete and Fe415 steel is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Limiting percentage of steel is given by
\(\frac{{{x_u}}}{d} = \left( {\frac{{0.87{f_y}{A_{st}}}}{{0.36{f_{ck}}bd}}} \right)\)
Calculation:
xu/d = 0.48 for Fe415, fy = 415, fck = 20
\(\frac{{{x_u}}}{d} = \left( {\frac{{0.87{f_y}{A_{st}}}}{{0.36{f_{ck}}bd}}} \right)\)
Ast/bd = [(0.48 × 0.36 × 20)/0.87 × 415)] × 100
Ast/bd = 0.957 %
Last updated on Jul 12, 2025
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