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DEWALT DESIGN ASSIST 1.7.6.0 Page 6 <br />10010 - Collectors Column Base <br />8/6/2025 <br />Pullout Strength: <br />ACI 318-19 17.6.3 <br />Equations <br />N pn = Ψ c,P . N p . ( f'c / 2500 )n Eqn. 17.6.3.1 <br />Variables <br />Ψ c,P N p,eq (lb)f'c (psi)n φ <br />1.000 2229.000 3000 0.500 0.65 <br />φs eis <br />0.750 <br />Results <br />φN pn =lb1087 <br />N ua =lb1075 Table 17.5.2 <br />Utilization =98.9% <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 9.6