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DEWALT DESIGN ASSIST 1.7.6.0 Page 8 <br />10010 - Collectors Column Base <br />8/6/2025 <br />Pryout Strength <br />ACI 318-19 17.7.3 <br />Equations <br />V cpg = k cp . N cpg Eqn. 17.7.3.1b <br />N cbg = ( A Nc / A Nc0 ) . Ψ ec,N . Ψ ed,N . Ψ c,N . Ψ cp,N . N b Eqn. 17.6.2.1b <br />N b = k c . λ a . ( f'c )0.5 . h ef1.5 Eqn. 17.6.2.2.1 <br />Variables <br />A Nc (in²)A Nc0 (in²)Ψ c,N Ψ cp,NΨec,N Ψ ed,N <br />144.000 1.0001.000 1.00036.000 1.000 <br />c ac (in)k c λ a (in)h ef f'c (psi) <br />6.500 17.000 1.000 2.00 3000.000 <br />N b (lb)(lb)k cp N cpg φ <br />2633.629 1.000 0.7010534.515 <br />φV cpg <br />Results <br />V ua <br />7374.00 lb Table 17.5.2= <br />240 lb <br />3.3% <br />= <br />=Utilization <br />Input data and results must be checked for agreement with the existing conditions, the standards and guidelines and must be checked for plausibility <br />Page 9.8