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A&P Holdings 1498 plan <br /> • <br /> Structural Calculations <br /> E <br /> Check Resultant Eccentricity: <br /> M +M. —M . <br /> `°"° °'' a' =1.9 Distance from toe to location of <br /> R„ vertical resultant(ft) <br /> e:= x.—B =0.6 Eccentricity from center of base(ft) <br /> 2 <br /> Kern:=II if B >e ="Middle Third" <br /> 6 <br /> "Middle Third" <br /> else <br /> "Unstable" <br /> Check Bearing: <br /> �' •(1 —6• B) Q,,,;f=289 Min bearing pressure at heel (psf) <br /> Q — R. <br /> max•— •(1+6.1 <br /> Qmaz——1949 Max bearing pressure at toe(psf) <br /> Check Sliding <br /> p:=0.4 Coefficient of friction <br /> Rh=1762 Horizontal reaction on wall (Ibs) <br /> Rf:=u•R„=2312.3 Resistance due to friction (Ibs) <br /> Rr=0 Resistance due to passive <br /> pressure at toe (Ibs) <br /> FS.,:= Rf+RI, =1.313 Factor of safety <br /> Rh <br /> Interior concrete slab will brace the wall <br /> against sliding. -OK <br /> Concrete reinforcing <br /> d:=5.5 Distance to reinforcing (in) <br /> 1.6•M°'- <br /> A,.:= =0.43 Area of steel required for <br /> 4.1000•d bending stresses (in^2/ft) <br /> Use#5 @ 8"o.c. vertical bars (0.45 inA2/ft) <br /> #4 @ 16" horz bars (0.15 in@/ft) <br /> Use#5 @ 12"o.c. transverse bars in 12"slab, top& bot <br /> By: J. Conner, PE, SE <br /> Page 3 <br />