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Project:POE Marine Industrial Expansion By:KCP <br /> Location:Everett,WA Date:5/6/2021 <br /> Low-Mast Footing Design <br /> This calculation is to design the slab foundation of the trench drain and concrete gutter. Demands are taken from the SAFE <br /> model. The same reinforcing is used for both top and bottom of the slab,so the maximum positive or negative demand <br /> controlls the design. <br /> Foundation Properties <br /> tFTG 12.0 in Thickness of Footing <br /> BFTG 60.0 in Width of Footing <br /> Material Properties <br /> F, 60 ksi Yield Stress of Rebar <br /> f'c 4000 psi Concrete Strength <br /> Footing Demands-SAFE Output <br /> M 130 kip*ft Moment Demand <br /> V, 5 kips Shear Demand <br /> Footing Design <br /> Reinforcement <br /> Bar #8 <br /> No.Bars 7 in Bar Spacing <br /> dbar 1.000 in Dia of Bar <br /> Abar 0.79 in' Area of Bar <br /> A, 5.53 inZ/ft Area of Steel per Foot <br /> As.Min 0.65 <br /> inZ/ft OK <br /> Flexure <br /> = 0.9 ACI 318-Tension Controlled <br /> Cover 3 in Clear Cover of Rebar <br /> d=tfo ting cover-dbar*1.5= 7.50 in Depth to centroid of reinf steel <br /> b= 60.0 in Defined Above <br /> a=ASF,/(0.85*f',*b)= 1.626 in <br /> FMn 4 AsFy(d-a/2)= 1997 kip*in <br /> Wn 166 kip*ft <br /> D/C 0.78 OK <br /> Shear <br /> 0.75 ACI 318 <br /> a 1 Normal Weight Concrete <br /> (�V (4�)2(T)sgrt(YJb,d 42.69 kips/ft <br /> D/C 0.12 OK <br /> 8 <br />