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SITE STRUCTURES <br />10511 19th Ave SE, Suite C <br />Everett, WA, (425)-357-9600 <br />Data <br />Project Airport 100 sheet _ I <br />date oti -,r <br />prj. no. S-21-006 <br />Soil Density 125 pcf <br />Soil Cover depth to the top of the wall 4 ft Ws1 = 200 psf <br />Wall height 7 ft Ws2 = 350 psf <br />Soil Pressure EFW 50 pcf <br />Surcharge Information <br />uniform S1 = 0 psf (on surface of ground) Equiv Ws = 0 psf <br />truck Ws = 0 psf ( on surface of wall - see design chart } <br />Critical Design Surcharge pressure 200 psf (on the surface of the wall) <br />Calculated Design Forces <br />W1= 400 F1 = 2800 Ibs R top = 1808 Ibs <br />W2= 350 F2 = 1225 Ibs R bot = 2217 lbs <br />M 1 = 2450 M total= 3550 ft-Ibs <br />M2 = 1100 <br />Wall Reinforcing <br />Wall thickness <br />81 inches <br />Comp block (a) = <br />0.39 inches <br />Clear cover <br />2 inches <br />Depth to CL bar (d) = <br />5.69 inches <br />Rebar size <br />6 <br />d-a/2 = <br />5.49 inches <br />Rebar area <br />0.31 sq-in <br />Bar spacing <br />14. inches <br />4)Mn = <br />6501 ft-Ibs <br />Rebar strength fy <br />. 64 ksi <br />Conc strength fc <br />4000 psi <br />Mu = <br />5680 ft-Ibs <br />Load Factor <br />1.6 <br />max tension reinforcing spacing: fs = 29488 psi s = 15.3 in <br />s = 16.3 in <br />smax = 15.3 in - OK <br />Anchorage at Top of the Wall <br />Ru = 2893 pif <br />#5 hairpins net #5@ 15"o/c 4)Vn = 6700pif <br />#5 hairpins net #5@ 18"o/c 4)Vn = 5580plf <br />Anchorage at Bottom of the Wall <br />Ru = 3547 pif Rebar Dowel Size = ; 5 <br />Dowel Area = :0 31 sq-in <br />Nominal Shear friction capacity Dowel strength fy= . .0: ksi <br />of the footing to wall Dowel 8131 plf Dowel Spacing = 14. inches <br />Coefficient of friction = 06 smooth surface <br />