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19011 Wood-Sno Road NE,Suite 100 <br /> Woodinville,VIA 98072-4436 <br /> Phone:425-814-8448 <br /> E N G I N E E RI N 0 Fax:425-821-2120 <br /> project: Typical Footing <br /> Footing: 30"x 30"x 12"thick <br /> Footing 8 = 2.50 ft It <br /> t = 12in <br /> Reinforcement R = (3) #4 As, = 0.60 ins isolated fbofhp <br /> d = 8.25 In Cover: 3 in — <br /> Column C, = 3.60 in C2 = 3.50 in <br /> Materials Po = 2500 psi Normalweirght : A = 1.00 <br /> fy = 40000 psi Uncoated c = 1,00 <br /> Net Footing Weight R <br /> PFTG= 0,25 k <br /> Soil Pressure: <br /> PASD = gaB2 --PFTc <br /> One-way shear. 0= 0.75 <br /> Vc = 2d fc Bd = 24.75 k <br /> Vu <_ 0Vc 0V, = 18.56 k <br /> _ B—C2 l _ 0Vc B—C, 0VC <br /> V` —quB 2 —d1 —� qu—B(B—C d) Vu =qu1J 2 —d —> qjj -3(B_C —d) <br /> JJl 2 2 2 <br /> qu = 8955 psf of 8955 psf Pu = quB2 = 55967# <br /> Two-way shear: 0= 0.75 <br /> (22.6.5.2(a)) vc =4AJI = 200 psi Cn <br /> [22.6.5.2(b)] v, = 2+Q1.1 ft = 300 psi _ 1.00 <br /> }} x— <br /> (22.6.5.2(c)) vc = (2+ E >A fc = 451 psi bo = 2(Cs+d)+2(C2+d) <br /> 47 <br /> Vu :5 0Vc OVe =rGvcbod = 58.16 k <br /> Vu = qu LB2 —(Cl +d)(C2 +d)] 0VC <br /> qu = [B2 —(Cl +d)(C2 +d)] <br /> qu = 10992 psf P„ = qu$z = 68702# <br /> Moment 0= 0.90 <br /> Mn =A$fY(d'R/2) = 18.1 k-fl <br /> a=A,fy1(0.85F,B)= 0.38in <br /> M„ c OM. OAfn = 14.5 k-ft <br /> z <br /> 9uB` 2 ) 20Mn quB\g z C� 20Mu <br /> B((B—C2)12) 2 B((B—C,)/2) <br /> qu = 9522 psf or 9522 psf P, = quBz = 59512# <br /> Development of Reinforcement: <br /> Id 40,1fb�t+K�S� db — 101n 10 in available OK <br /> db <br /> Soil Bearing Pressure 1600 psf 2000 psf 2500 psf 3000 psf 3600 psf 4000 psf <br /> Max Load(lbs), Soil 9125 12250 15375 18500 21625 24750 <br /> Max Load(lbs), One-Way Shear 34980 34980 34980 34980 34980 34980 <br /> Max Load(lbs),Two-Way Shear 42938 42938 42938 42938 42938 42938 <br /> Max toad(lbs),Moment 37195 37195 37195 37195 37195 37195 <br /> Max Load(ASD) 9126 12250 16376 18500 21625 24750 <br /> Max Load(Factored) 14600 19600 24600 29600 34600 39600 <br /> Date: 3 25 2021. <br /> Page:----M2.4 <br />