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4 <br /> BTL, 19011 Wood-Sno Road NE,Suite 100 <br /> Woodinville,WA 98072-4436 <br /> Phone:425-814-8448 <br /> E NCI NEE RIN C Fax:425-821-2120 <br /> Project: Typical Footing <br /> Footing: 18"x 18"x 8"thick <br /> Footing B = 1.50 ft <br /> t = 8in \/ <br /> Reinforcement R = (2) #4 V <br /> A st = 0.40 in2 Isolated footing <br /> d = 4.25 in Cover: 3 in <br /> Column Ct = 3.50 in C2 = 3.50 in <br /> Materials f', = 2500 psi Normalweight w A = 1.00 : <br /> I � — <br /> fy = 40000 psi Uncoated v t/Ie = 1.00 R! 1 <br /> Net Footing Weight MUM <br /> PFTG= 0.06 k Y ; - - <br /> Soil Pressure: OP R <br /> PAso = 9aB2 —PFTG = [ a <br /> One-way shear: 0= 0.75 <br /> Vc = 2A fc'Bd = 7.65 k <br /> Vu <- OVc OVc = 5.74k <br /> CB-C2- \ OK. rB—CI- \ OVc <br /> Vu =9uB 2 d/I -' 9u = g(g-CZd) Vu =9uB 2 d -' 9u= B(g—C1_d) <br /> 2 2 <br /> 9u = 10392 psf or 10392 psf Pu = quB2 = 23383# <br /> Two-way shear: 0= 0.75 <br /> [22.6.5.2(a)] vc = 4.1 f� = 200 psi G <br /> [22.6.5.2(b)] vc = (2 + a)A fc = 300 psi r3 = 1.00 <br /> Q a,= 40 <br /> [22.6.5.2(c)) vc = (2+axd)A fc = 374 psi b o = 2(Ci+d)+2(Cz+d) <br /> bo 31 <br /> Vu <_ 4)Vc OVc = cbvcbod = 19.76k <br /> OK <br /> Vu = qu[B2 -(CI + d)(C2 + d)] -) qu = [B2 - (CI +d)(C2 +d)] <br /> qu = 10782 psf Pu = quB2 = 24260# <br /> Moment: 0= 0.90 <br /> Mn = Asfy(d -ah) = 5.4 k-ft <br /> a =Asfy/(0.85fcB)= 0.42 in <br /> Mu < OMn OMn = 4.8 k-ft <br /> z r z <br /> 9uB( ) 20Mn quB`B 2 ) 20Mn <br /> Mu = i -'9u= Mu -- -rqu = <br /> 2 2 <br /> B((B-CI)/2)2 <br /> qu = 17712 psf or 17712 psf Pu = quB2 = 39853# <br /> Development of Reinforcement: <br /> = 3 fy �tPelbs <br /> Id40 b+X db = 4 in ...4 in available OK <br /> f` k db Adjusted <br /> Soil Bearing Pressure 1500 psf 2000 psf 2500 psf 3000 psf 3500 psf 4000 psf <br /> Max Load (Ibs), Soil 3315 4440 5565 6690 7815 8940 <br /> Max Load (Ibs),One-Way Shear 14614 14614 14614 14614 14614 14614 <br /> Max Load (Ibs),Two-Way Shear 15162 15162 15162 15162 15162 15162 <br /> Max Load (Ibs), Moment 24908 24908 24908 24908 24908 24908 <br /> Max Load(ASD) 3315 4440 5565 6690 7815 8940 <br /> Max Load(Factored) 5304 7104 8904 10704 12504 14304 <br /> Date: 3/19/2018 <br /> Pagc: M2.2 <br />