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Td =td / tt = 2.6(D)(H-1)/(St) td = Miniumum shell thickness, in inchesĪnnular Bottom Plate Thickness D = Diameter in Feet H = Height in Feet V = Volume in Cubic FeetįOUNDATION DESIGN: Per API 650 (Appendix E) Tank is unanchored, use equations pertaining to unanchored tanks, for seismic loading. Td =td / tt = 2.6(D)(H-1)/(St) = td = Miniumum shell thickness =ĭ = Normal tank diameter, in feet H = depth of tank, in feet G = design Specific gravity of liquid Sd = allowable Stress for Design condition E = joint efficiency St = allowable stress 516-60 Hydro Test CA = Corrosion Allowance
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Td =td / tt = 2.6(D)(H-1)/(St) td = Miniumum shell thickness, in inches D = Normal tank diameter, in feet H = depth of tank, in feet G = design Specific gravity of liquid Sd = allowable Stress for Design condition E = joint efficiency St = allowable stress 516-60 Hydro TestįileName: 58389297.xls WorkSheet: Steel DesignĪPI 650 Design Calculations Shell Design : td = 2.6(D)(H -1)(G)/Sd= Td =td / tt = 2.6(D)(H-1)/(St) = td = Miniumum shell thickness, in inches =ĭ = Normal tank diameter, in feet = H = depth of tank, in feet = G = design Specific gravity of liquid = Sd = allowable Stress for Design condition E = joint efficiency St = allowable stress516-60 Hydro Test G = design Specific gravity of liquid 1 Sd = allowable Stress for Design condition 23,200 E = joint efficiency 0.85% St = allowable stress 516-60 Hydro Test 24,900 CA = Corrosion Allowance 0.0625 For First Course (Bottom) 516-60 Plate Wall Thickness Miniumum shell thickness, in inches, td = td / tt = 2.6(D)(H-1)/(St) td = Fixed cone roof with internal floating roof.įROM ( BOTTOM COURSE) PLATE TO (TOP COURSE) PLATE td = 2.6(D)(H -1)(G)/Sd=Ġ.174 in. Items marked with an asterisk (*) to be completed by Vendor/Fabricator.Ģ. Internals (attach separate sheet, as req'd):Ĥ6 Design Specifications: 47 Tank Insulation ?ĭesign Wind Velocity % Inspection Req'd ? lbġ. Operating Temperature 30 Flash Point (Closed Cup) :ģ3 (Hydro)test Pressure expressed in Psig 34 Minimum Fluid TemperatureĤ1 Lining/Coating 42 43 Stress Relieve ? 44 STORAGE TANK SPECIFICATION (English Units)Ģ9 Vapor Pressure Max.