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E. Frank Hofmeister, SE _.,2...Q <br /> 206-363-0197 8/4/2017 <br /> Royell Mfg. <br /> Job No. <br /> East 6.5 Retaining Wall with 100 PSF surcharge and Seismic loading <br /> SOIL INFORMATION <br /> ... . ........................ <br /> 35.000 P.C.F.=Active Pressure <br /> 20.0.000 P.C.F.=Passive Pressure <br /> 100.000 P.C.F=Weight of Soil <br /> 0.300, =p,Resistance to Sliding <br /> 2.666 Ft.=Ht.of soil above bott.of ftg,low side <br /> 6.500 Ft.=Ht.of soil above bott.of ftg,high side <br /> WALL INFORMATION <br /> 7.000 Ft.=Overall Height of Wall from Bottom of Footing <br /> 8.000 in.=Wall Thickness @ Top of Wall <br /> 8.000 in.=Wall Thickness @ Bottom of Wall <br /> 12.000 in.=Footing Thickness <br /> 2.333 Ft.=Footing Toe Length <br /> 0.667 Ft.=Footing Heel Length <br /> 3.667 Ft.=Footing Length <br /> LOAD INFORMATION <br /> 100.000 P.S.F.=Vertical Surcharge Load on Soil <br /> 0.000P.L.F.=Vertical Load @ Top of Wall <br /> 0.000 P.L.F.=Horizontal Load @ Top of Wall (+=same dir.as soil pressure) <br /> 0.000 Lb:Ft.=Moment @ Top of Wall (+=same dir.as active soil moment) <br /> 0:019 Seismic!sterol pressure=A6*PGA, PGA= 0.548; <br /> RESULTS <br /> 2.039 K.L.F.=I Vertical Loads <br /> 3.2192 K-Ft.=Overturning Moment <br /> 4.9952 K-Ft.=Resisting Moment <br /> 1.219 =F.S.,Overturning (Min= 1.1 per I.B.C.1807.2.3) <br /> 0.891 K.L.F.=Sliding Force <br /> 1.322 K=Resistance to Sliding w/o Key <br /> 1.484 =F.S.,Sliding w/o Key (Min= 1.1 per I.B.C.1807.2.3) <br /> 0.026 Ft.=Required Depth of Ftg.Key(below bottom of footing)for F.S.=1.5 <br /> 0.871 Ft.=x bar <br /> Soil Bearing is Triangular 2.61 Ft.=Length of Soil Bearing <br /> 1.560 K.S.F.=Max.Soil Bearing <br /> WALL REINFORCING <br /> 0.171 in.2=As=Mom at top of ftg./(1.44*1.33*(Wall thickness-1.5-5/16 Min.As= 0.192 <br /> 2.032 K-Ft:Mom at top of ftg. <br /> Use#4 @ 12.5 " Vertical 12.5 " <br /> Use#5 @ 18 " Vertical 19.375 " <br /> Use#4 @ 12 " Horizontal 12.5 <br /> Use#5 @ 15 " Horizontal 19.375 <br />