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19011 Wood-Sno Road NE,Suite 100 <br /> „wY , :d' Woodinville,WA 98072-4436 <br /> Phone:425-814-8448 <br /> E rNGINEER1N.G Fax:425-821-2120 <br /> Project: Typical Footing <br /> Footing: 48"x 48"x 12"thick <br /> Footing B = 4.00 ft (V± s. <br /> .{ <br /> f = 12in <br /> Reinforcement R = (5) I#4 .• <br /> Ash = 1.00 in2 isolated fooling <br /> d = 8.25 in Cover: 3 in <br /> Column Ci = 5.50 in C2 = 5.50 in <br /> Materials fc = 2500 psi i Normalweight E 2.= 1,00OM <br /> fy = 40000 psi lJncaated t IP, = 1.00 II ' <br /> Net Footing Weight R <br /> PFTG= 0.64 k <br /> Soil Pressure: R I <br /> PASD =gaB2—PF-rc = <br /> One-way shear: 0= 0.75 <br /> Vc =2.1 fcBd = 39.60 k <br /> Vu5. OVc OVc = 29.70k <br /> V B(B—Cz— ) fbVc (B—Cl ) ...* q S�v <br /> u =qu ` 2 d -a 4u =B(B_Cz_d� (`B— <br /> Vu =quB 2 —du= Ci—d) <br /> qu = 4644 psf or 4644 psf Pu = quBZ = 74298# <br /> Two-way shear: 0= 0.75 <br /> [22.6.5.2(a)] vc = 4,1Aff7= 200 psi a <br /> [22.6.5.2(b)] vc = (2+Qf.)d = 300 psi /1 = 1.00 <br /> ax=40 <br /> [22.6.5.2(c)] vc =(2+ no)2. fc = 400 psi b o = 2(Ci+d)+2(C2+d) <br /> 55 <br /> Vu <(pc cVc =cbvcbod= 68.06 k <br /> Vu =qu BZ—(Cl+d)(C2+0 --> qu = OVc <br /> = [B2—(Cr +d)(C2+d)] <br /> Moment: qu4634 p sf Pu = quBZ = 74147# <br /> 00.90 <br /> Mn =As fy(d—a,, ) = 26.8 k-ft <br /> a=Asfyl(0.85f0B)= 0.39 in <br /> Mu<— OMn OMn = 24.2 k-ft <br /> z <br /> //B l B—C z <br /> Mu=quB l 2 / —,4u= 20Mn M =quB( 2 1) 20M„ . <br /> 2 B((B—Cz)/2)z �` 2 4u =B B—C 2 z <br /> qu = 3853 psf or 3853 psf Pu = quBZ = 61640# <br /> Development of Reinforcement: <br /> 3 <br /> fd _ 40,E f�(bt+K,l)db = 12 in ...18 in available OK <br /> db J <br /> Soil Bearing Pressure 1500 psf 2000 psf 2500 psf 3000 psf 3500 psf 4000 psf <br /> Max Load(Ibs), Soil 23360 31360 39360 47360 55360 63360 <br /> Max Load(Ibs),One-Way Shear 46436 46436 46436 46436 46436 46436 <br /> Max Load(Ibs),Two-Way Shear 46342 46342 46342 46342 46342 46342 <br /> Max Load(lbs), Moment 38525 38525 38525 38525 38525 38525 <br /> Max Load(ASD) 23360 31360 38525 38526 38525 38525 <br /> Max Load(Factored) 37376 60176 61640 61640 61640 61640 <br /> Date:3/19/2018 <br /> Page: M2.7 <br />