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• Langford Residence 10 <br /> 7507 E Heather Way <br /> Structural Calculations <br /> Check basement wall for soil pressures <br /> ryar:= 65 <br /> At rest lateral earth pressure(pcf) <br /> h l =7 Wal height(ft) <br /> Par:= 7ar'hl =455 <br /> Pressure at base of wall(psf/ft) <br /> Pr.= 1-par h1 = 1593 Resultant force(Of)2 <br /> Rmax P — P = 1062 Max reaction at base of wall(ft-lbs) <br /> max• r 3 r <br /> Mmax <br /> Rm .h1 =2.477 Max bending moment in wall(ft kips) <br /> ' 1000 3 <br /> tw:= 6 <br /> Wal ih ickne ss(n) <br /> d:= 3 Depth to reinforcing(in) <br /> 1.6M <br /> Asreq <br /> max _0.33 Area of rst required(in^2/ft) <br /> sreq' 4-d <br /> Existing#4 @ 6"o.c.reinforcing OK(As=0.4 inA2Ift) <br /> By: J. Conner, PE, SE Langford Structural Calcs.xmcd <br /> 2/26/2020 <br /> r2.112, <br />