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PROJECT Fioral Parks PAGE: <br />CLIENT · Inland Signs ' ,DESIGN BY: GP <br />JOB NO.205-40 DATE : ·4/2/2014 REVIEW BY: MK <br />Flagpole Footing Design Based on Chapter 18 of IBC & CBC <br />INPUT DATA & DESIGN SUMMARY <br />IS FOOTING RESTRAINED @ GRADE LEVEL ? (1=YES,0=NO)0 :no Pl t 5 4 <br />LATERAL FORCE @ TOP OF POLE P= . 14 - k <br />HEIGHT OF POLE ABOVE GRADE H= ' 4 ft <br />DIAMETER OF POLE FOOTING B = : 2.5 ft H <br />LATERAL SOIL BEARING CAPACITY S = . 0.2 ksf /Sft <br />ISOLATED POLE FACTOR (IBC 1804 3.1 or Wac note 3 on Tab,18*49 F = . 2 <br />FIRST TRIAL DEPTH ===D=; .3 · ft <br />Use 2.5 tt dia x 4.42 ft deep footing unrestrained @ ground level D <br />4 ./ <br />ANALYSIS <br />LATERAL BEARING @ BOTTOM : s = FS Min(-0 . 12') <br />LATERAL BEARING @ D/3 :S, -FE MINI -4 ,: 12'1 <br />. 2.34,P <br />BS' <br />211 + <br />REQUIRD DEPTH:D=. 2L 4 <br />4.36H <br />A <br />, FOR NONCONSTRAINED EQ. 18-1 <br />EQ. 18-2 <br />4.25PH1-8,7 ,FOR CONSTRAINED <br />NONCONSTRAINED CONSTRAINED <br />LATERAL FORCE @ TOP OF POLE P =>1.40 k 140 k <br />HEIGHT OF POLE:ABOVEGRADE H =>40 ft 4:0 ft <br />DIAMETEROF POLE FOOTING B =>2.50 2.50 ft <br />LATERAL SOIL BEARING CAPACITY FS =>0.40 ksf / ft 0.40 ksf / ft <br />1,ST TRIAL TRY D, =>3.00 ft 3.00 ft <br />LAT SOIL BEARING @ 1/3 D Sl =>0.40 ksf 0.40 ksf <br />LAT SOIL BEARING @ 1.0 D 4 *1.20 ksf 1.20 Ksf <br />CONSTANT 2.340(BSi) A =>3.28 - <br />REQE) FOOTING DEPTH RQRD D =>5.76 ft 2.82 ft <br />2ND TRIAL:TRY D2=>4.38 ft 2.91 ft <br />LAT SOIL BEARING @ 1/3 D S, =>0.58 ksf 0.39 ksf <br />LAT SOIL BEARING @ 1.0 D Sh =>1.75 ksf 1.16 ksf <br />CONSTANT 2.34P/(BS1)A =>2.24 <br />REQD FOOTING DEPTH RQRD D =>4.45 ft 2.86 ft <br />3RD TRIAL :TRY D3=>4.41 ft 2.88 ft <br />LAT SOIL BEARING @ 1/3 D Sl ,0.59 ksf 0.38 ksf <br />LATSOIL BEARING @ 1.0 D 63 =1.76 ksf 1.15 ksf <br />CONSTANT 2.34P/(BS1)A =>2.23 - - <br />REQD FOOTING DEPTH RQRD D =>4.42 ft 2.87 ft <br />4TH TRIAL:TRY D4=>4.42 ft 2.88 R <br />LAT SOIL BEARING @ la D Sl =>0.59 ksf 0.38 ksf <br />LAT SOIL BEARING @ 1.0 D 4 ,1.77 ksf 1.15 ksf <br />CONSTANT 2.34P/(BS,)A =>2.22 - <br />REQD FOOTING DEPTH RQRD D =>4.42 ft 2.88 ft <br />5TH TRIAL :TRY D5=>4.42 ft 2.88 ft <br />LAT SOIL BEARING @ 1/3 D Sl .)0.59 ksf 0.38 ksf <br />LAT SOIL BEARING @ 1.0 D 3 =1.77 ksf 1.15 ksf <br />CONSTANT 2.34P/(BS1)A =i>2.22 - <br />REQD FOOTING DEPTH RQRD D =>4.42 ft 2.88 R