Note : The CG is computed from the first Element From Node
Center
Center of of Gravity Gravity of of Liquid Liquid 61.0 61.0 inin Center
Center of of Gravity Gravity of of Nozzles Nozzles 64.3 64.3 inin Center
Center of of Gravity Gravity of of Legs Legs -7.2 -7.2 inin Center
Center of of Gravity Gravity of of Bare Bare Shell Shell New New and and Cold Cold 61.7 61.7 inin Center
Center of of Gravity Gravity of of Bare Bare Shell Shell Corroded Corroded 61.8 61.8 inin Vessel
Vessel CG CG in in the the Operating Operating Condition Condition 60.2 60.2 inin Vessel
Vessel CG CG in in the the Fabricated Fabricated (Shop/Empty) (Shop/Empty) Condition Condition 58.3 58.3 inin
PVElite is a registered trademark of COADE, Inc. [2009]
FileName
FileName : : Sample Sample 4.1 4.1 --- --- Page Page 33 33 of of 6262 Leg
Leg Check, Check, (Operating (Operating Case) Case) : : Step: Step: 15 15 8:15a 8:15a Apr Apr 15,201015,2010
RESULTS
RESULTS FOR FOR LEGS LEGS : Opera: Opera ting ting Case Case DescriptDescript ion: ion: LEGSLEGS Legs attached to: Shell
Legs attached to: Shell
Section
Section Properties : Properties : I Beam W6X15I Beam W6X15
USA AISC 1989 Steel Table
USA AISC 1989 Steel Table
Overall
Overall Leg Leg Length Length 42.500 42.500 inin Effective
Effective Leg Leg Length Length Leglen Leglen 42.500 42.500 inin Distance
Distance Leg Leg Up Up Side Side of of Vessel Vessel 12.500 12.500 inin Number
Number of of Legs Legs Nleg Nleg 44 Cross
Cross Sectional Sectional Area Area for for W6X15 W6X15 Aleg Aleg 4.430 4.430 in²in² Section
Section Inertia Inertia ( ( strong strong axis axis ) ) 29.100 29.100 in**4in**4 Section
Section Inertia Inertia ( ( weak weak axis axis ) ) 9.320 9.320 in**4in**4 Section
Section Modulus Modulus ( ( strong strong axis axis ) ) 9.720 9.720 in in ³³ Section
Section Modulus Modulus ( ( weak weak axis axis ) ) 3.110 3.110 in in ³³ Radius
Radius of of Gyration Gyration ( ( strong strong axis axis ) ) 2.560 2.560 inin Radius
Radius of of Gyration Gyration ( ( weak weak axis axis ) ) 1.460 1.460 inin
Leg Orientation - Weak Axis
Leg Orientation - Weak Axis
Overturning
Overturning Moment Moment at at top top of of Legs Legs 242259.7 242259.7 in-lbin-lb Total
Total Weight Weight Load Load at at top top of of Legs Legs W W 18203.3 18203.3 lbflbf Total
Total Shear Shear force force at at top top of of Legs Legs 3900.8 3900.8 lbflbf Additional
Additional force force in in Leg Leg due due to to Bracing Bracing Fadd Fadd 0.0 0.0 lbflbf Occasional
Occasional Load Load Factor Factor Occfac Occfac 1.3331.333 Effective
Effective Leg Leg End End Condition Condition Factor Factor k k 1.0001.000
Note: The Legs are Not Cross Braced
Note: The Legs are Not Cross Braced
The Leg Shear Force includes Wind and Seismic Effects
The Leg Shear Force includes Wind and Seismic Effects
Maximum Shear at top of one Leg [Vleg]: Maximum Shear at top of one Leg [Vleg]:
= ( Max(Wind, Seismic) + Fadd ) * ( Imax / Itot ) = ( Max(Wind, Seismic) + Fadd ) * ( Imax / Itot ) = ( 3900.8 + 0.0 ) * ( 29.0 /
= ( 3900.8 + 0.0 ) * ( 29.0 / 76.95 )76.95 ) = 1471.71 lbf
= 1471.71 lbf
Axial Compression, Leg futhest from N.A. [Sma] Axial Compression, Leg futhest from N.A. [Sma]
= ((W/Nleg)+(Mleg/(Nlegm*Rn)))/Aleg) = ((W/Nleg)+(Mleg/(Nlegm*Rn)))/Aleg) = ((18203 / 4 ) + (2907116 /( 2 * 30.25 )))/ = ((18203 / 4 ) + (2907116 /( 2 * 30.25 )))/ 4.430 )4.430 ) = 1931.18 psi = 1931.18 psi Axial
Axial Compression, Compression, Leg Leg closest closest to to N.A. N.A. [Sva][Sva]
= ( W / Nleg ) / Aleg = ( W / Nleg ) / Aleg = ( 18203 / 4 ) / 4.430 = ( 18203 / 4 ) / 4.430 = 1027.27 psi = 1027.27 psi
Allowable Comp. for the
Allowable Comp. for the Selected Leg Selected Leg (KL/r < (KL/r < Cc ) Cc ) [Sa]:[Sa]:
= Occfac * ( 1-(kl/r)²/(2*Cc²))*Fy / = Occfac * ( 1-(kl/r)²/(2*Cc²))*Fy / ( 5/3+3*(Kl/r)/(8*Cc)-(Kl/r³)/(8*Cc³) ( 5/3+3*(Kl/r)/(8*Cc)-(Kl/r³)/(8*Cc³) = 1.33 * ( 1-( 29.11 )²/(2 * 125.32² )) * 37080 / = 1.33 * ( 1-( 29.11 )²/(2 * 125.32² )) * 37080 / ( 5/3+3*( 29.11 )/(8* 125.32 )-( 29.11³)/(8* 125.32³) ( 5/3+3*( 29.11 )/(8* 125.32 )-( 29.11³)/(8* 125.32³) = 27447.69 psi = 27447.69 psi
Bending at the Bottom of the Leg closest to the N.A. [S]: Bending at the Bottom of the Leg closest to the N.A. [S]:
= ( Vleg * Leglen * 12 / Smdwa ) = ( Vleg * Leglen * 12 / Smdwa ) = ( 1471.71 * 42.50 * 12 / 3.11 ) = ( 1471.71 * 42.50 * 12 / 3.11 ) = 20111.93 psi
FileName
FileName : : Sample Sample 4.1 4.1 --- --- Page Page 34 34 of of 6262 Leg
Leg Check, Check, (Operating (Operating Case) Case) : : Step: Step: 15 15 8:15a 8:15a Apr Apr 15,201015,2010
Allowable Bending Stress[Sb]: Allowable Bending Stress[Sb]:
= ( 0.6 * Fy * Occfac ) = ( 0.6 * Fy * Occfac ) = ( 0.6 * 37080 * 1.33 ) = ( 0.6 * 37080 * 1.33 ) = 29656.58 psi = 29656.58 psi
AISC Unity Check [Sc]( must be < or = to 1.00 ) : AISC Unity Check [Sc]( must be < or = to 1.00 ) :
= (Sma/Sa)+(0.85*S)/((1-Sma/Spex)*Sb) = (Sma/Sa)+(0.85*S)/((1-Sma/Spex)*Sb) = (1931 /27447 )+( 0.85 *20111.934 )/(( 1 -1931 /238959 ) *29656 ) = (1931 /27447 )+( 0.85 *20111.934 )/(( 1 -1931 /238959 ) *29656 ) = 0.6515 = 0.6515
Bolting Size Requirement
Bolting Size Requirement for Leg Baseplates :for Leg Baseplates :
Baseplate
Baseplate Material Material SA/CSA SA/CSA G40.21G40.21 Baseplate
Baseplate Allowable Allowable Stress Stress SBA SBA 17100.00 17100.00 psipsi Baseplate
Baseplate Length Length D D 7.0000 7.0000 inin Baseplate
Baseplate Width Width B B 7.0000 7.0000 inin Baseplate
Baseplate Thickness Thickness BTHK BTHK 0.7500 0.7500 inin Leg
Leg Dimension Dimension Along Along Baseplate Baseplate Length Length d d 5.9900 5.9900 inin Leg
Leg Dimension Dimension Along Along Baseplate Baseplate Width Width b b 5.9900 5.9900 inin Dist.
Dist. from from the the Leg Leg Edge Edge to to Bolt Bolt Hole Hole Center Center z z 1.5000 1.5000 inin Bolt
Bolt Material Material SA-193 SA-193 B7B7 Bolt
Bolt Allowable Allowable Stress Stress STBA STBA 18800.00 18800.00 psipsi Anchor
Anchor Bolt Bolt Nominal Nominal Diameter Diameter BOD BOD 1.5000 1.5000 inin Number
Number of of Anchor Anchor Bolts Bolts in in Tension Tension per per Leg Leg NB NB 11 Total
Total Number Number of of Anchors Anchors Bolt Bolt per per Leg Leg NBT NBT 22 Ultimate
Ultimate 28-day 28-day Concrete Concrete Strength Strength FCPRIME FCPRIME 3000.000 3000.000 psipsi
The dim., B is too short for
The dim., B is too short for the leg size (7.00)the leg size (7.00)
The dim., D is too short for
The dim., D is too short for the leg size (7.00)the leg size (7.00)
PVElite is a registered trademark of COADE, Inc. [2009]
PVElite is a registered trademark of COADE, Inc. [2009]
FileName
FileName : : Sample Sample 4.1 4.1 --- --- Page Page 35 35 of of 6262 Leg
Leg Check, Check, (Filled (Filled w/Water) w/Water) : : Step: Step: 16 16 8:15a 8:15a Apr Apr 15,201015,2010
RESULTS
RESULTS FOR FOR LEGS LEGS : Hy: Hy droTest droTest Case Case DescriptDescript ion: ion: LEGSLEGS Legs attached to: Shell
Legs attached to: Shell
Section
Section Properties : Properties : I Beam W6X15I Beam W6X15
USA AISC 1989 Steel Table
USA AISC 1989 Steel Table
Overall
Overall Leg Leg Length Length 42.500 42.500 inin Effective
Effective Leg Leg Length Length Leglen Leglen 42.500 42.500 inin Distance
Distance Leg Leg Up Up Side Side of of Vessel Vessel 12.500 12.500 inin Number
Number of of Legs Legs Nleg Nleg 44 Cross
Cross Sectional Sectional Area Area for for W6X15 W6X15 Aleg Aleg 4.430 4.430 in²in² Section
Section Inertia Inertia ( ( strong strong axis axis ) ) 29.100 29.100 in**4in**4 Section
Section Inertia Inertia ( ( weak weak axis axis ) ) 9.320 9.320 in**4in**4 Section
Section Modulus Modulus ( ( strong strong axis axis ) ) 9.720 9.720 in in ³³ Section
Section Modulus Modulus ( ( weak weak axis axis ) ) 3.110 3.110 in in ³³ Radius
Radius of of Gyration Gyration ( ( strong strong axis axis ) ) 2.560 2.560 inin Radius
Radius of of Gyration Gyration ( ( weak weak axis axis ) ) 1.460 1.460 inin
Leg Orientation - Weak Axis
Leg Orientation - Weak Axis
Overturning
Overturning Moment Moment at at top top of of Legs Legs 0.0 0.0 in-lbin-lb Total
Total Weight Weight Load Load at at top top of of Legs Legs W W 18123.8 18123.8 lbflbf Total
Total Shear Shear force force at at top top of of Legs Legs 0.0 0.0 lbflbf Additional
Additional force force in in Leg Leg due due to to Bracing Bracing Fadd Fadd 0.0 0.0 lbflbf Occasional
Occasional Load Load Factor Factor Occfac Occfac 1.0001.000 Effective
Effective Leg Leg End End Condition Condition Factor Factor k k 1.0001.000
Note: The Legs are Not Cross Braced
Note: The Legs are Not Cross Braced
The Leg Shear Force includes Wind and Seismic Effects
The Leg Shear Force includes Wind and Seismic Effects
Maximum Shear at top of one Leg [Vleg]: Maximum Shear at top of one Leg [Vleg]:
= ( Max(Wind, Seismic) + Fadd ) * ( Imax / Itot ) = ( Max(Wind, Seismic) + Fadd ) * ( Imax / Itot ) = ( 0.0 + 0.0 ) * ( 29.0 /
= ( 0.0 + 0.0 ) * ( 29.0 / 76.95 )76.95 ) = 0.00 lbf
= 0.00 lbf
Axial Compression, Leg futhest from N.A. [Sma] Axial Compression, Leg futhest from N.A. [Sma]
= ((W/Nleg)+(Mleg/(Nlegm*Rn)))/Aleg) = ((W/Nleg)+(Mleg/(Nlegm*Rn)))/Aleg) = ((18123 / 4 ) + (0 /( 2 * = ((18123 / 4 ) + (0 /( 2 * 30.25 )))/ 4.430 )30.25 )))/ 4.430 ) = 1022.79 psi = 1022.79 psi Axial
Axial Compression, Compression, Leg Leg closest closest to to N.A. N.A. [Sva][Sva]
= ( W / Nleg ) / Aleg = ( W / Nleg ) / Aleg = ( 18123 / 4 ) / 4.430 = ( 18123 / 4 ) / 4.430 = 1022.79 psi = 1022.79 psi
Allowable Comp. for the
Allowable Comp. for the Selected Leg Selected Leg (KL/r < (KL/r < Cc ) Cc ) [Sa]:[Sa]:
= Occfac * ( 1-(kl/r)²/(2*Cc²))*Fy / = Occfac * ( 1-(kl/r)²/(2*Cc²))*Fy / ( 5/3+3*(Kl/r)/(8*Cc)-(Kl/r³)/(8*Cc³) ( 5/3+3*(Kl/r)/(8*Cc)-(Kl/r³)/(8*Cc³) = 1.00 * ( 1-( 29.11 )²/(2 * 125.32² )) * 37080 / = 1.00 * ( 1-( 29.11 )²/(2 * 125.32² )) * 37080 / ( 5/3+3*( 29.11 )/(8* 125.32 )-( 29.11³)/(8* 125.32³) ( 5/3+3*( 29.11 )/(8* 125.32 )-( 29.11³)/(8* 125.32³) = 20590.91 psi = 20590.91 psi
Bending at the Bottom of the Leg closest to the N.A. [S]: Bending at the Bottom of the Leg closest to the N.A. [S]:
= ( Vleg * Leglen * 12 / Smdwa ) = ( Vleg * Leglen * 12 / Smdwa ) = ( 0.00 * 42.50 * 12 / 3.11 ) = ( 0.00 * 42.50 * 12 / 3.11 ) = 0.00 psi
FileName
FileName : : Sample Sample 4.1 4.1 --- --- Page Page 36 36 of of 6262 Leg
Leg Check, Check, (Filled (Filled w/Water) w/Water) : : Step: Step: 16 16 8:15a 8:15a Apr Apr 15,201015,2010
Allowable Bending Stress[Sb]: Allowable Bending Stress[Sb]:
= ( 0.6 * Fy * Occfac ) = ( 0.6 * Fy * Occfac ) = ( 0.6 * 37080 * 1.00 ) = ( 0.6 * 37080 * 1.00 ) = 22248.00 psi = 22248.00 psi
AISC Unity Check [Sc]( must be < or = to 1.00 ) : AISC Unity Check [Sc]( must be < or = to 1.00 ) :
= (Sma/Sa)+(0.85*S)/((1-Sma/Spex)*Sb) = (Sma/Sa)+(0.85*S)/((1-Sma/Spex)*Sb) = (1022 /20590 )+( 0.85 *0.000 )/(( 1 -1022 /179264 ) *22248 ) = (1022 /20590 )+( 0.85 *0.000 )/(( 1 -1022 /179264 ) *22248 ) = 0.0497 = 0.0497
Bolting Size Requirement
Bolting Size Requirement for Leg Baseplates :for Leg Baseplates :
Baseplate
Baseplate Material Material SA/CSA SA/CSA G40.21G40.21 Baseplate
Baseplate Allowable Allowable Stress Stress SBA SBA 17100.00 17100.00 psipsi Baseplate
Baseplate Length Length D D 7.0000 7.0000 inin Baseplate
Baseplate Width Width B B 7.0000 7.0000 inin Baseplate
Baseplate Thickness Thickness BTHK BTHK 0.7500 0.7500 inin Leg
Leg Dimension Dimension Along Along Baseplate Baseplate Length Length d d 5.9900 5.9900 inin Leg
Leg Dimension Dimension Along Along Baseplate Baseplate Width Width b b 5.9900 5.9900 inin Dist.
Dist. from from the the Leg Leg Edge Edge to to Bolt Bolt Hole Hole Center Center z z 1.5000 1.5000 inin Bolt
Bolt Material Material SA-193 SA-193 B7B7 Bolt
Bolt Allowable Allowable Stress Stress STBA STBA 18800.00 18800.00 psipsi Anchor
Anchor Bolt Bolt Nominal Nominal Diameter Diameter BOD BOD 1.5000 1.5000 inin Number
Number of of Anchor Anchor Bolts Bolts in in Tension Tension per per Leg Leg NB NB 11 Total
Total Number Number of of Anchors Anchors Bolt Bolt per per Leg Leg NBT NBT 22 Ultimate
Ultimate 28-day 28-day Concrete Concrete Strength Strength FCPRIME FCPRIME 3000.000 3000.000 psipsi
The dim., B is too short for
The dim., B is too short for the leg size (7.00)the leg size (7.00)
The dim., D is too short for
The dim., D is too short for the leg size (7.00)the leg size (7.00)
PVElite is a registered trademark of COADE, Inc. [2009]
PVElite is a registered trademark of COADE, Inc. [2009]
FileName
FileName : : Sample Sample 4.1 4.1 --- --- Page Page 37 37 of of 6262 Nozzle
Nozzle Calcs. Calcs. : : N2 N2 Nozl: Nozl: 1 1 8:15a 8:15a Apr Apr 15,201015,2010
INP
INP UT UT VALUES, VALUES, Nozzle Nozzle Description: Description: N2 N2 From From : : 1010
Pressure
Pressure for for Reinforcement Reinforcement Calculations Calculations P P 155.170 155.170 psigpsig Temperature
Temperature for for Internal Internal Pressure Pressure Temp Temp 120 120 FF Shell
Shell Material Material SA-516 SA-516 7070 Shell
Shell Allowable Allowable Stress Stress at at Temperature Temperature S S 20000.00 20000.00 psipsi Shell
Shell Allowable Allowable Stress Stress At At Ambient Ambient Sa Sa 20000.00 20000.00 psipsi Inside
Inside Crown Crown Radius Radius of of Torispherical Torispherical Head Head L L 60.0000 60.0000 inin Inside
Inside Knuckle Knuckle Radius Radius of of Torispherical Torispherical Head Head r r 3.6000 i3.6000 inn Head
Head Finished Finished (Minimum) (Minimum) Thickness Thickness t t 0.6750 0.6750 inin Head
Head Internal Internal Corrosion Corrosion Allowance Allowance c c 0.1250 0.1250 inin Head
Head External External Corrosion Corrosion Allowance Allowance co co 0.0000 0.0000 inin Distance
Distance from from Head Head Centerline Centerline L1 L1 0.0000 0.0000 inin User
User Entered Entered Minimum Minimum Design Design Metal Metal Temperature Temperature -20.00 -20.00 FF