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Anchor Bolts <br />(Cont'd) <br />CHECK PRYOUT STRENGTH FOR SHEAR LOAD : (ACI 318, SEC 17.5.3.1) <br />=23.847 k >Vua [Satisfactory] <br />where :f =0.75 x 0.75 =0.5625 <br /> yc,N term is 1.0 for location where concrete cracking is likely to occur. <br />kcp =2.0 for hef > 2.5 in. <br />DETERMINE DESIGN SHEAR STRENGTH : <br />=2.492 K <br />CHECK TENSION AND SHEAR INTERACTION : (ACI 318, SEC 17.6) <br />Since Nua >0.2 f Nn and <br />Vua >0.2 f Vn the full design strength is not permitted. <br />The interaction equation must be used <br />0.76 <1.2 [Satisfactory] <br />Summary of Dimensional Properties of Fasteners <br />Effective <br />Gross Area of <br />Area of Threaded <br />Fastener Fastener Heavy Heavy Hardened <br />( in2 )( in2 )Square Hex Washers <br />0.250 1/4 0.049 0.032 0.142 0.201 0.117 0.167 0.258 <br />0.375 3/8 0.110 0.078 0.280 0.362 0.164 0.299 0.408 <br />0.500 1/2 0.196 0.142 0.464 0.569 0.291 0.467 0.690 <br />0.625 5/8 0.307 0.226 0.693 0.822 0.454 0.671 1.046 <br />0.750 3/4 0.442 0.334 0.824 1.121 0.654 0.911 1.252 Technical Reference: <br />0.875 7/8 0.601 0.462 1.121 1.465 0.891 1.188 1.804 1. Ronald Cook, "Strength Design <br />1.000 1 0.785 0.606 1.465 1.855 1.163 1.501 2.356 of Anchorage to Concrete," PCA, <br />1.125 1 1/8 0.994 0.763 1.854 2.291 1.472 1.851 2.982 1999. <br />1.250 1 1/4 1.227 0.969 2.288 2.773 1.817 2.237 3.682 <br />1.375 1 3/8 1.485 1.160 2.769 3.300 2.199 2.659 4.455 <br />1.500 1 1/2 1.767 1.410 3.295 3.873 2.617 3.118 5.301 <br />1.750 1 3/4 2.405 1.900 ---4.144 6.541 <br />2.000 2 3.142 2.500 ---5.316 7.903 <br />HexSquare( in ) <br />Fastener <br />Diameter <br />Bearing Area of Heads, Nuts, and Washers <br />( Ab ) ( in2 ) <br />()()'1.5 <br />, , ,2 <br />0.30.7 241.59 <br />N N <br />cp cp b cp efed N c N c N c <br />No efef <br />cA A fV k N k hhA hf f fy y y = = +   <br />()min , ,n s cb cpV V V Vffff= <br />ua ua <br />n n <br />N V <br />N Vf f+ = <br />A4 <br />1115 W Highland St <br />1/15/2025