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OCT-24-2000 17:05 P.02/03 <br />Buoyancy Calculations For 20,000 Gallon GlassSteel II Tank <br />Standard Tank <br />Basis <br />Submerged Weights: <br />Pea Gravel 60 lbs. per cubic foot <br />Reinforced Concrete 87_6 lbS, per cubic foot <br />Water 7.48 gals. per cubic foot <br />Water 52.4 lbs. per cubic foot <br />Weights In Air: <br />Pea Gravel 120 lbs per cubic foot <br />Reinforced Concrete 150 lbs. per cubic foot <br />Tank 13116 tbs. <br />Dimensions: <br />Tank <br />Concrete Slab <br />Burial Depth <br />Manways or Sumps <br />34.333 ft. long <br />10 ft. diameter <br />38.3 ft. long <br />12 ft_ wide <br />0,66666 ft. thick <br />5.19 ft. <br />3 number <br />3.5 ft. diameter <br />5 ft. height <br />Reflected Area A1-= 343.33 S.F. <br />Displaced Volume V= 2,695.14 C.F. <br />Uplift Force Fu= 168,176.77 lbs. <br />Hold Down Forces: <br />Tank Weight <br />Area of Concrete Slab A2 <br />Concrete Slab Wb.= <br />Peagravel Overburden Volume <br />From Center of Tank to <br />Concrete Slab Vb= <br />Weight of Pea Gravel Overburden Wb= <br />Total Hold Down Force Fh= <br />Excess Hold down Force Ehd= <br />13,116.00 lbs. <br />459.60 S.F. <br />45,959.54 lbs. <br />2,833.49 C.F. <br />170,009.44 lbs. <br />229,084.98 lbs. <br />80,908.21 lbs. <br />Factor of Safety Excluding Friction FS1 <br />Acceptable when FS1>=1.25 <br />1.36 ACCEPTABLE