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Width Depth <br />6 6 Min. <br /> 6 6 <br /> Wind : fb = 930 psi <br /> <br />Post Depth: <br /> <br /> Fb ~ 700 psi <br /> <br />6.93 in. <br /> fb/Fb ~ <br /> <br />Lumber Properties for Pole Wind Load Stresses: <br /> Fb = 525 psi 700 psi : Pole <br /> <br />1.33 <br /> <br /> FY = 70 psi <br /> E ~ 1.1 x10~6 psi <br /> Fc = 375 psi <br /> F brg ~ 405 psi <br />Pole Embedment - 1989 UBC <br /> <br />Trial Embedment Depth: <br />Lateral Soil Brg. Pressure: <br />Applied Base Moment: <br />Assumed Force Magnitude: <br />Point of Application: <br />Foundation Dia.: <br /> <br /> Non¢onstrained - 2902(g) 2A <br /> Trial: 1 2 <br />Si: 400 426 <br />A: 2.93 2.75 <br />d: 4.8 4.6 <br /> <br />Constrained - 2902(g) 2B <br /> <br />S3: 1200 psf <br />d: 2.8 ft. <br /> <br />Soil Bearing <br /> <br />Fndn. Press.: 1000 psf <br /> <br />93 psi <br /> <br /> 4.5 ft. <br /> 267 psf/ft. <br />2,799 ft-lbs <br />1,000 lbs <br /> 2.80 ft. <br /> 2 ft. <br /> <br />Lateral Brg.: <br /> <br />100 psf/ft. <br /> <br />Deflection Multiplier: 1 or 2 <br /> <br />Pole Reaction : 7,200 lbs <br />Hole Diameter: 2 ft. <br />Soil Bearing: 2,292 psf <br /> <br />Min. Bearing Pad : 2.3 ft. <br /> (Diameter) 28 in. <br /> <br />Bearing Block <br /> <br />: Perpendicular Truss Brg. <br /> <br />w/ 1/3 increase for wind <br /> <br /><== Assumed for design <br /><== Computed from base mome <br /> <br /> d w/o slab = 4.6 ft. <br />3 4 5 6 <br />407 420 411 418 psf <br />2.87 2.78 2.85 2.80 ft. <br />4.7 4.6 4.7 4.6 ft. <br /> <br />d w/ slab = 2.8 ft. <br /> <br />1,700 psf <br />3,000 psf <br />1,700 psf : Design Allowable <br /> Footnote 4; Table No. 29-B <br /> <br />200 psf/ft. <br /> Footnote 3; Table No. 29-B <br /> <br /> 2 <== Tbl. No. 29-B Note #4 <br />Select ^ <br /> <br />1700 psf allowable <br /> <br /> <br />