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�.iP- 19011 Wood-Sno Road NE,Suite 100 <br /> ist Woodinville,WA 98072-4436 <br /> Phone:425-814-8448 <br /> E NGINEERIN G Fax:425-821-2120 <br /> Project: Typical Footing <br /> Footing: 42"x 42"x 12"thick <br /> Footing B = 3.50 ft , t <br /> f= 12in <br /> Reinforcement R = (4) '#4 <br /> A 61 =0.80 in2 isolated rooting <br /> d= 8.25 in Cover: 3 in - <br /> Column C f = 5.50 in C2 = 5.50 in <br /> Materials f, = 2500 psi Normalweight A = 1.00 <br /> fy = 40000 psi Uncoated �e = 1.00 a b <br /> Net Footing Weight 'tea <br /> PFrc= 0.49 k it'Soil Pressure: -R <br /> PASD =gaB2—PFTG = .' t <br /> One-way shear: 0= 0.75 <br /> Vc= 2d fc Bd = 34.65 k <br /> Vu5_ OVc rVc = 25.99k <br /> (----i--- <br /> B-C2 1 (( 0Vc rB—C1 1 0Vc <br /> Vu =quB -d,-' qu= �-d) Vu=quBl -2 d -> clu=B( � <br /> B- <br /> B 1C _d) <br /> qu = 5606 psf or 5606 psf Pu=quB2 = 68677# <br /> Two-way shear: 0= 0.75 <br /> [22.6.5.2(a)] vc= 4d f- = 200 psi 4 <br /> [22.6.5.2(b)] vc = (2+4)2 fc = 300 psi if= 1.00# aX=40 <br /> [22.6.5.2(c)] vc= (2+bo)2 fc = 400 psi bo = 2(Ci+d)+2(C2+d) <br /> 55 <br /> Vu OK OK =tvcbod= 68.06 k <br /> Vu =qu[B2 -(C1+d)(C2+d)] -� i3Vc <br /> $u [B2 -(CI.+d)(C2+d)] <br /> qu = 6223 psf Pu =quB2 = 76233# <br /> Moment: 0= 0.90 <br /> Mn =As fv(d-a/2) = 21.5 k-ft <br /> a=A2fyl(0.85f'cB)= 0.36 in <br /> Mu<4Mn OMn = 19.4 k-ft <br /> z 2 <br /> 4uB(B-C2) 2¢Mn quB(2 1') 2Q1Mn <br /> Mu 2 - - 2 Mu- -'9u <br /> 2 B((B-C2)/2) 2 <br /> B(tB-C1)!2)2 <br /> qu = 4785 psf or 4785 psf Pu =quB2 = 58622# <br /> Development of Reinforcement: <br /> (3 fy iGc e s db = <br /> `` 12 in ...15 in available OK <br /> fa - 40A fj(c,+Ko.) <br /> db <br /> Soil Bearing Pressure 1500 psf 2000 psf 2500 psf 3000 psf 3500 psf 4000 psf <br /> Max Load(Ibs),Soil 17885 24010 30135 36260 42385 48510 <br /> Max Load(Ibs),One-Way Shear 42923 42923 42923 , 42923 42923 42923 <br /> Max Load(ibs),Two-Way Shear 47646 47646 47646 47646 47646 47646 <br /> Max Load(lbs),Moment 36639 36639 36639 36639 36639 36639 a <br /> Max Load(ASD) 17885 24010 30135 36260 36639 36639 <br /> Max Load(Factored) 28616 38416 48216 58016 58622 58622 <br /> -Date:3/19/2018 <br /> Page: M2.6 <br />