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8/24/2021 <br /> IBC 2018 METAL BUILDING FOOTING DESIGN 8:49 AM <br /> version Date:November 23,2020 By: SDP Reviewed by: TMD <br /> JOB TITLE:Everett WA Sunbelt Wash Bay JOB#: 21114 <br /> Column:Typical DESIGNER: NOW <br /> Footing Design <br /> $oil Pronertleo $IjQIB9IOvertrminn Proor•rtl•.‘ <br /> Allowable sod bearing pressure 1,500 psf Is there a foundation wall between piers? NO <br /> Is this Net bearing pressure? YES Foundation width used for passive to resist Z-Direction force 4 ft <br /> %Allowable pressure increase for Wind&Seismic 33 % Available passive pressure per foot of foundation wall length 0.0 k8 <br /> Soil density y,a,: 110 pcf Available passive pressure per foot of footing width 0.9 kd <br /> Concrete-Soil Friction Coefficient p: 0.35 Total available passive force 2.6 k <br /> Passive Pressure EFP 350 pcf Top of pier to top of footing 24 in <br /> Top of grade to top of footing 24 in <br /> Allowable soil bearing pressure with increase 1,865 psf <br /> Allowable soil bearing pressure with increase W/E 2,480 psf <br /> Max%of Friction to use(per geolechnical report) 100 % <br /> Max%of passive to use(per geotechnical report) 100 % <br /> Safety factor to use for sliding: 1.5 <br /> Safety factor to use for W/E sliding: 1.5 <br /> Safety factor to use for overtuming: 1.0 <br /> footina Si'e Safety factor to use for W/E overturning: 1.0 <br /> Width and Length 3.0 ft <br /> Thickness 12 in <br /> Thick enough for pier dowels? YES <br /> Footing and Soil Dead Load 3.3 k <br /> %of Soil DL to use in ASCE 7-10 uplift combinations 90 % <br /> %of Footing DL to use in ASCE 7-10 uplift combinations 90 % <br /> Footing and Sod Dead Load for ASCE 7-10 Combinations 3.0 k <br /> Concrete compressive strength f,: 3,000 psi <br /> Feotina Relnfemina fontlna Bending <br /> Footing reinforcing fy: 60,000 psi Bottom reinforcement A,+: 0.93 ire Reinf.Status )H <br /> Bottom Bars# 5 bars Top Reinforcement A,-: 0.93 in' Reinf.Status or. <br /> Number of bars each way 3 Flexural Capacity pMn+: 33.8 keft <br /> Uplift Flexural Capacity qMn-: 33.8 keft <br /> Top Bars# 5 bars <br /> Number of bars each way 3 <br /> Footing Gear cover 3.0 in <br /> Footing effective depth d: 8.4 in <br /> Fnntlne Punehlne ahaar foptlna One Wee Sheer <br /> Width of critical shear perimeter II to Mu b,: 32.4 in Design shear capacity OVr:RUM k <br /> Width of critical shear perimeter 1 to Mu bz: 25.6 in <br /> Punching shear critical perimeter bo: 115.5 in <br /> Fraction of moment transferred by shear yv: 0.43 <br /> Polar moment of inertia of critical perimeter J : 3656240 in <br /> Ratio of long to short side of pier 6. 1.4 <br /> Column location factor a,: 40 Interior Column <br /> Lightweight Concrete Factor 0: 1 <br /> Nominal punching shear capacity v, 219.1 psi <br /> Design punching shear capacity : 164.3 psi <br />