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www.hilti.com <br />Hilti PROFIS Engineering 3.1.11 <br />Input data and results must be checked for conformity with the existing conditions and for plausibility! <br />PROFIS Engineering ( c ) 2003-2025 Hilti AG, FL-9494 Schaan Hilti is a registered Trademark of Hilti AG, Schaan <br />4 <br />Company: <br />Address: <br />Phone I Fax: <br />Design: <br />Fastening point: <br /> | <br />McGuff Enclosure Post Anchorage <br />Page: <br />Specifier: <br />E-Mail: <br />Date: <br />4 <br />3/12/2025 <br />3.3 Concrete Breakout Failure <br />Ncbg = (ANc <br />ANc0)y ec,N y ed,N y c,N y cp,N Nb ACI 318-19 Eq. (17.6.2.1b) <br />f Ncbg ³ Nua ACI 318-19 Table 17.5.2 <br />ANc see ACI 318-19, Section 17.6.2.1, Fig. R 17.6.2.1(b) <br />ANc0 = 9 h2 <br />ef ACI 318-19 Eq. (17.6.2.1.4) <br />y ec,N = (1 <br />1 + 2 e' <br />N <br />3 hef <br />)£ 1.0 ACI 318-19 Eq. (17.6.2.3.1) <br />y ed,N = 0.7 + 0.3 (ca,min <br />1.5hef)£ 1.0 ACI 318-19 Eq. (17.6.2.4.1b) <br />y cp,N = MAX(ca,min <br />cac <br />, 1.5hef <br />cac )£ 1.0 ACI 318-19 Eq. (17.6.2.6.1b) <br />Nb = kc l a √f' <br />c h1.5 <br />ef ACI 318-19 Eq. (17.6.2.2.1) <br />Variables <br />hef [in.]ec1,N [in.]ec2,N [in.]ca,min [in.]y c,N <br />8.000 0.000 0.000 6.000 1.000 <br />cac [in.]kc l a f' <br />c [psi] <br />-24 1.000 2,500 <br />Calculations <br />ANc [in.2]ANc0 [in.2]y ec1,N y ec2,N y ed,N y cp,N Nb [lb] <br />552.00 576.00 1.000 1.000 0.850 1.000 27,153 <br />Results <br />Ncbg [lb]f concrete f Ncbg [lb]Nua [lb] <br />22,118 0.700 15,483 9,600