Table of Contents
Tail lug.............................................................................................................................................................................1
ACESS OPENING (AO # 1)..........................................................................................................................................10
ACCESS OPENING 2 (A02)..........................................................................................................................................22
VENT 1 (V01).................................................................................................................................................................34
VENT 2 (V02).................................................................................................................................................................43
VENT 3 (V03).................................................................................................................................................................52
OPENING FOR N2 (PO2)..............................................................................................................................................62
OPENING FOR NOZZLE N14 (PO 1)............................................................................................................................71
i
Tail lug
Geometry Inputs
Attached To
Skirt Base Ring #1
Material
SA-516 GRADE 70
Orientation
Longitudinal
Distance of Lift Point From Datum
-1,891.5 mm
Angular Position
90°
Length, L
153 mm
Height, H
426.5 mm
Thickness, t
30 mm
Hole Diameter, d
70 mm
Pin Diameter, Dp
60 mm
Load Eccentricity, a1
0 mm
Distance from Load to Shell or Pad, a2
350 mm
Load Angle Normal to Vessel, β
0°
Load Angle from Vertical, φ
0°
Welds
Size, tw
7 mm
Collar
Thickness, tc
20 mm
Diameter, Dc
100 mm
Weld Size, twc
7 mm
Intermediate Values
Load Factor
1.5000
Vessel Weight (new, incl. Load Factor), W
16,949.7 kg
Lug Weight (new), Wlug
15.8 kg
Distance from Center of Gravity to Top Lug, l1
2,670.83 mm
Distance from Center of Gravity to Tail Lug, l2
4,665.67 mm
Distance from Vessel Center Line to Tail Lug, l3
1,360 mm
Allowable Stress, Tensile, σt
156 MPa
Allowable Stress, Shear, σs
104 MPa
Allowable Stress, Bearing, σp
234 MPa
Allowable Stress, Bending, σb
171.6 MPa
Allowable Stress, Weld Shear, τallowable
104 MPa
Allowable Stress set to 1/3 Sy per ASME B30.20
No
Summary Values
Required Lift Pin Diameter, dreqd
19.25 mm
Required Lug Thickness, treqd
2.54 mm
Required Lug Collar Thickness, tc reqd
0 mm
Lug Stress Ratio, σratio
0.53
Weld Shear Stress Ratio, τratio
0.79
Lug Design
Acceptable
Base ring loading
Acceptable
Lift Forces
Lift force on lugs during rotational lift (0°≤ α ≤ 90°):
2*Ftop = W*(l2*cos(α) + l3*sin(α)) / (l1*cos(α) + l2*cos(α) + l3*sin(α) )
Ftail = W - (2*F)
α [°]
Ftop[N]
Ftail[N]
0
52,854.1
60,511.9
15
54,285.7
57,648.5
30
55,779.3
54,661.5
45
57,585.6
51,048.7
60
60,207.4
45,805.2
75
65,226.8
35,766.5
90
83,110
0
571
59,573.4
47,073.3
582
59,776.2
46,667.7
1Lift
angle at maximum lug
stress.
2Lift
angle at maximum weld
stress.
Lug loading at α = 0°
Total lift force
F = Ftop / cos(φ)
F = 60,511.9 / cos(0.0) = 60,511.9 N
Tensile force (parallel to lug normal)
Ft = F*cos(β)
Ft = 60,511.9*cos(0.0) =
60,511.9 N
Shear force (parallel to lug weld)
Fs = F*sin(β)
Fs = 60,511.9*sin(0.0) =
0N
Lug Pin Diameter - Shear stress
dreqd
=
=
dreqd / Dp =
σ
σ / σs
(2*F / (π*σs))0.5
(2*60,511.9 / (π*104))0.5
=
19.25 mm
19.25 / 60
=
0.32
=
=
=
F/A
F / (2*(0.25*π*Dp2))
60,511.9 / (2*(0.25*π*602)) =
10.7 MPa
=
10.7 / 104
0.1
=
Acceptable
Acceptable
Lug Thickness - Tensile stress
treqd
=
=
treqd / t =
σ
=
Fr / (L*σt)
60,511.9 / (153*156) =
2.54 mm
2.54 / 30
0.08
Fr / A
=
Acceptable
σ / σt
=
=
Fr / (L*t)
60,511.9 / (153*30)
=
13.18 MPa
=
13.18 / 156
=
0.08
Acceptable
Lug Thickness - Bearing stress
Treqd
=
=
F / (Dp*σp)
60,511.9 / (60*234)
=
4.31 mm
=
=
t + 2*tc
30 + 2*20
=
70 mm
=
4.31 / 70
=
0.06
Acceptable
Collar required thickness
tc reqd
= max(0, 0.5*(Treqd - t))
= max( 0, 0.5*(4.31 - 30) )
= 0 mm
tc reqd / tc = 0 / 20
=
0.00
Acceptable
T
Treqd / T
σ
=
=
=
σ / σp =
F / Abearing
F / (Dp*(t + 2*tc))
60,511.9 / (60*(30 + 2*20)) =
14.41 MPa
14.41 / 234
0.06
=
Acceptable
Lug Thickness - Shear stress
treqd
treqd / t
=
=
[Fv / σs - 4*tc*Lc] / (2*Lshear)
(60,511.9 / 104 - 4*(20*30.18)) / (2*51.09) =
0 mm
=
0 / 30
0.00
=
Collar required thickness
tc reqd
= [Fv / σs - 2*t*Lshear] / (4*Lc)
= (60,511.9 / 104 - 2*(30*51.09)) / (4*30.18) =
tc reqd / tc = 0 / 20
=
τ
τ / σs
0 mm
0.00 Acceptable
=
=
=
Fv / Ashear
Fv / (2*t*Lshear + 4*tc*Lc)
60,511.9 / (2*30*51.09 + 4*20*30.18) =
11.04 MPa
=
11.04 / 104
0.11
=
Acceptable
Acceptable
Shear stress length (per Pressure Vessel and Stacks, A. Keith Escoe)
=
=
=
=
=
=
=
=
φ
Lshear
Lc
55*Dp / d
55*60 / 70
47.1429°
(H - a2 - 0.5*d) + 0.5*Dp*(1 - cos(φ))
(426.5 - 350 - 0.5*70) + 0.5*60*(1 - cos(47.1429))
51.09 mm
Collar shear plane length
30.18 mm
Lug Plate Stress
Lug stress tensile + bending during lift:
σ ratio = [Ften / (Aten*σt)] + [Mbend / (Zbend*σb)] ≤ 1
= [(Ftail(α)*cos(α) ) / (t*L*σt)] + [(6*abs(Ftail(α)*sin(α)*Hght - Ftail(α)*cos(α)*a1) ) / (t*L2*σb)] ≤ 1
47,073.3*cos(57.0) / (30*153*156) + 6*abs(47,073.3*sin(57.0)*250 - 47,073.3*cos(57.0)*0) /
=
(30*1532*171.6)
= 0.53
Acceptable
Weld Stress
Weld stress, tensile, bending and shear during lift:
Direct shear:
Maximum shear stress occurs at lift angle 58.00°; lift force = 46,667.7 N
Flug
=
Ftop / cos(φ)
=
46,667.7 / cos(0.0) = 46,667.7 N
Aweld
τt
=
=
2*(0.707)*tw*(d1 + b1 + d2 + t)
2*(0.707)*7*(110 + 153 + 100 + 30) = 3,889.91 mm2
=
=
Ftail*cos(α) / Aweld
46,667.7*cos(58.0) / 3,889.91 = 6.36 MPa
=
Ftail*sin(α) / Aweld
τs
=
46,667.7*sin(58.0) / 3,889.91 = 10.17 MPa
Torsional shear:
Weld areas
Ai
=
0.707*tw*Li
A1
=
0.707*7*110
A2
=
0.707*7*153
A3
=
0.707*7*100
Aweld torsion
=
Σ Ai
= 544.39
mm2
= 757.2
mm2
= 494.9
mm2
= 1,796.49
mm2
Weld centroid locations
x1 = 0 mm
y1 = 55 mm
x2 = 76.5 mm
y2 = 0 mm
x3 = 153 mm
y3 = 50 mm
Xbar = Σ (Ai*xi) / ΣAi
Ybar = Σ (Ai*yi) / ΣAi
Xbar
=
(544.39*0 + 757.2*76.5 + 494.9*153 ) / 1,796.49
Ybar
=
(544.39*55 + 757.2*0 + 494.9*50 ) / 1,796.49
Radius to centroid locations
ri
r1
r2
r3
=
=
=
=
sqr((Xbar - xi)2 + (Ybar - yi)2 )
sqr( (74.39 - 0)2 + (30.44 - 55)2 )
sqr( (74.39 - 76.5)2 + (30.44 - 0)2 )
sqr( (74.39 - 153)2 + (30.44 - 50)2 )
= 78.34 mm
= 30.51 mm
= 81 mm
Radial distance from centroid to weld:
r = sqr( ∆X2 + ∆Y2 )
= sqr( 74.392 + 79.562 )
= 108.92 mm
θr = arctan( ∆Y / ∆X )
= arctan( 79.56 / 74.39 ) = 46.92°
Polar Moment of Area
Ji = 0.707*tw*(Li3) / 12
0.707*7*(1103)
J1 =
=
/ 12
0.707*7*(1533)
J2 =
=
/ 12
0.707*7*(1003)
J3 =
=
/ 12
J
=
2*Σ (Ji + Ai*ri2)
548926.5833 mm4
1477102.0477 mm4
412416.6667 mm4
= 74.39
mm
= 30.44
mm
Parallel axis theorem (weld on both sides of
lug)
2*[548926.5833 + 544.39*(78.34)2 + (1477102.0477 + 757.2*(30.51)2) + (412416.6667 +
J =
494.9*(81)2) ]
= 19463967 mm4
Secondary shear
τ2
=
=
=
=
τ ratio
M*r/J
[F(α)*cos(α)*(X - Xbar) - F(α)*sin(α)*(Y - Ybar)] * r / J
(46,667.7*cos(58.0)*(76.5 - 74.39) - 46,667.7*sin(58.0)*(350 - 30.44) )*108.92 /
19463967.0023
-70.48 MPa
= sqr( (τt + τ2*cos(θr))2 + (τs + τ2*sin(θr))2 ) / τallowable ≤ 1
= sqr ( (6.36 + 70.48*cos(46.92))2 + (10.17 + 70.48*sin(46.92) )2 ) / 104
= 0.79
Acceptable
Collar Weld Stress:
τc = Ftail / Aweld
= 60,511.9 / (2*0.707*7*π*100) = 19.46 MPa
τ ratio = τc / τallowable ≤ 1
= 19.46 / 104 = 0.19
Acceptable
Base Ring Sectional Properties
Base Ring Geometry
t1
10 mm
L1
263.19 mm
t2
32 mm
L2a
110 mm
L2b
90 mm
t3
32 mm
L3
100 mm
Effective skirt length:
Rm = (Di + t1)*0.5
= (2,000 + 10)*0.5
L1 = L + t3 + Min(0.78*sqr(Rm*t1), 16*t1)
= 153 + 32 + 0.78*sqr(1,005*10)
Section Area:
A1 = t1*L1
= 10*263.19
A2 = t2*L2
= 32*(110 + 90)
= 1,005 mm
= 263.19 mm
= 2,631.95 mm2
= 6,400 mm2
A3 =
Atotal =
Centroid, C:
h1 =
h2 =
h3 =
C=
t3*L3
A1 + A2 + A3
= 32*100
= 3,200 mm2
= 2,631.95 + 6,400 + 3,200 = 12,231.95 mm2
L2a + 0.5*t1
= 110 + 0.5*10
0.5*(L2a + L2b)
= 0.5*(110 + 90)
0.5*L3 - (L3 - L2a) = 0.5*100 - (100 - 110)
( (A1*h1) + (A2*h2) + (A3*h3) ) / Atotal
((2,631.95*115) + (6,400*100) + (3,200*60)
=
) / 12,231.95
Moment of Inertia, I:
I1 = (L1*t13) / 12 + A1*(h1 - C)2
= (263.19*103) / 12 + 2,631.95*(115 - 92.76)2
I2 = t2*(L2a + L2b)3 / 12 + A2*(h2 - C)2
= 32*(110 + 90)3 / 12 + 6,400*(100 - 92.76)2
I3 = (t3*L33) / 12 + A3*(h3 - C)2
= (32*1003) / 12 + 3,200*(60 - 92.76)2
Iring = I1 + I2 + I3
1323372.4461 + 21668514.6750 +
=
6101626.8862
= 115 mm
= 100 mm
= 60 mm
= 92.76 mm
= 1323372.4mm4
= 21668514.7 mm4
= 6101626.9 mm4
= 29093514.0mm4
Section Modulus, Z:
Z = Iring / Cmax = 29093514.0073 / 107.24 = 271301.445 mm3
Base Ring Loads without stiffener beam
Base Ring Load
Wr
= W = Ftail = 60,511.9 N
Base Ring Loading
Reference: Roark's Formulas for Stress & Strain - 6th Edition. Table 17, Case 20
For thin ring sections k1 = k2 = 1
Change in vertical diameter, DV = (-W)*R3*(π*k1 / 8 - k22 / π) / (E * I)
Internal Moment,
MA = W*R*(k2 - 0.5) / (2*π)
Internal Force,
NA = 0.75*W / π
Internal Shear Force,
VA = 0
Ring loading, Wr = 60,511.9 N
DVr
= -60,511.9*1,027.243*(π*1 / 8 - 12 / π) / (199,947.95*29093514.0073)
MAr
= 60,511.9*1,027.24*(1 - 0.5) / (2*π)
NAr
= 0.75*60,511.9 / π
Load Equations
LTM
LTN
LTV
M
N
V
=
=
=
=
=
=
W*R*(1 - cos(x) - 0.5*x*sin(x)) / π
-W*(x*sin(x)) / (2*π)
W*(sin(x) - x*cos(x)) / (2*π)
MA - NA*R*(1 - cos(x)) + VA*R*sin(x) + LTM
NA*cos(x) + VA*sin(x) + LTN
-NA*sin(x) + VA*cos(x) + LTV
= -0.84 mm
= 4946.5353 N-m
= 14,446.1 N
Load Table for Load Wr
x [°] LTM [N-m] LTN [N]
LTV [N]
M [N-m]
N [N]
V [N]
180
0.00
-0.00
0.00
4946.54
14446.14
0.00
150
60.84
-2521.33
448.31
3019.25
9989.40
-6774.76
120
921.05
-8734.13
3297.83
-1552.22 -1511.06
90
4246.14
-15127.96 9630.76
60
11735.17
-17468.27 18425.79 -5577.71 -24691.34 5915.07
30
23971.44
-12606.64 26650.71 1226.90
0
39572.28
-0.00
-9212.90
-5646.93 -15127.96 -4815.38
-25117.36 19427.64
30255.93 14839.61 -14446.14 30255.93
(0 ° at lug)
Maximum Stress in Base Ring Section
Allowable Base Ring Stresses
Fa = 0.6*Fy = 148.93 MPa
Fb = 0.66*Fy = 163.82 MPa
Fs = 0.4*Fy = 99.28 MPa
Base Ring Stresses
Maximum combined stress occurs at 0.00 degrees
fa
= N/A =
-14,446.1 / 12,231.95
= -1.18 MPa
fb
= M/Z =
14,839.6 / 271301.4452 = 54.7 MPa
fa / Fa + fb / Fb = 0.34
Acceptable
Maximum shear stress occurs at 0.00 degrees
fs
= V/A =
30,255.9 / 12,231.95
= 2.47 MPa
fs / Fs
=
0.02
Acceptable
ACESS OPENING (AO # 1)
ASME Section VIII Division 1, 2017 Edition Metric
Component
Skirt Opening
Description
ACESS OPENING
Drawing Mark
AO # 1
Sleeve Material
SA-516 70 (II-D Metric p. 18, ln. 33)
Pad Material
SA-516 70 (II-D Metric p. 18, ln. 33)
Location and Orientation
Attached to
Support Skirt #1
Orientation
radial
Offset, L
1,225 mm
Angle, θ
130°
Distance, r
1,080 mm
Through a
Category B Joint
No
Dimensions
Inside Diameter
580 mm
Nominal Wall
Thickness
10 mm
Skirt Thickness
10 mm
Leg41
6 mm
Leg42
10 mm
Leg43
6 mm
Pad Width, W
75 mm
Pad Thickness, te
10 mm
External
Projection
Available, Lpr1
70 mm
Internal
Projection, Lpr2
75 mm
Corrosion Inner
0 mm
Outer
0 mm
Skirt Opening Reinforcement Summary
Required
Thickness
tr
(mm)
Wind
Operating Hot & Corroded
Tensile
0
Compressive 0.56
Seismic
Tensile
0.38
Compressive 1.3
Wind
Operating Hot & New
Tensile
0
Compressive 0.58
Seismic
Tensile
0.4
Compressive 1.35
Wind
Empty Cold & Corroded
Tensile
0.0127
Compressive 0.26
Seismic
Tensile
0.18
Compressive 0.51
Wind
Empty Cold & New
Tensile
0.0063
Compressive 0.27
Seismic
Tensile
0.2
Compressive 0.56
Field Test Corr
Wind
Tensile
0
Compressive 0.54
Field Test New
Wind
Tensile
0
Compressive 0.55
Wind
External Pressure Hot & Corroded
Tensile
0
Compressive 0.56
Seismic
Tensile
0.38
Compressive 1.3
Note: Skirt required thickness of zero on tensile side indicates load is compressive.
AT
(cm2)
Ar
(cm2)
Ratio
Status
N/A
OK
68.9795 3.2531 21.2039
OK
69.5176 2.2274 31.2103
OK
66.7234 7.5539 8.8329
OK
70.686
N/A
OK
68.9331 3.3415 20.6293
OK
69.4799 2.2992 30.2188
OK
66.5925 7.8035 8.5337
OK
70.6473 0.0738 956.7967
OK
69.9077 1.4836 47.1195
OK
70.1345 1.0514 66.7076
OK
69.1217 2.9821 23.179
OK
70.667
OK
70.686
0
0
0.0363 1,946.1428
69.8557 1.5827 44.1362
OK
70.0927 1.131
61.9755
OK
68.9755 3.2607 21.1534
OK
70.686
N/A
OK
69.0481 3.1223 22.1145
OK
70.686
N/A
OK
69.0025 3.2092 21.5017
OK
70.686
N/A
OK
68.9795 3.2531 21.2039
OK
69.5176 2.2274 31.2103
OK
66.7234 7.5539 8.8329
OK
0
0
0
Skirt Opening Reinforcement Calculations
LR1 = (Reff*t)0.5 + W
(4.5.6)
LR2 = ((Reff + t)*(t + te))0.5
(4.5.7)
LR3 = 2*Rn
(4.5.8)
LR = min[ LR1, LR2, LR3]
(4.5.9)
LH1 = min[ 1.5*t , te] + (Rn*tn)0.5
(4.5.11)
LH2 = Lpr1
(4.5.12)
LH3 = 8*(t + te)
(4.5.13)
LH = min[ LH1, LH2, LH3] + t
(4.5.14)
LI1 = (Rn*tn)0.5
(4.5.16)
LI2 = Lpr2
(4.5.17)
LI3 = 8*(t + te)
(4.5.18)
LI = min[ LI1, LI2, LI3]
(4.5.19)
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
fr3 = min[ min[ Sn , Sp ] / S , 1 ]
fr4 = min[ Sp / S , 1 ]
A1 = 2*LR*(E1*t - tr)
A2 = 2*(LH - tr)*tn*fr2
A3 = 2*LI*ti*fr2
A41 = L412*fr3
A42 = L422*fr4
A43 = L432*fr2
A5 = 2*min[ W , LR - tn ]*min[ te , LH ]*fr4
AT = A1 + A2 + A3 + A41 + A42 + A43 + A5
Ar = d*tr + 2*tn*tr*(1 - fr1)
New
LR1 = (1,000*10)0.5 + 75 =
175 mm
LR2 = ((1,000 + 10)*(10 + 10))0.5 =
142.13 mm
LR3 = 2*290 =
580 mm
LR = min[ 175, 142.13, 580] =
142.13 mm
LH1 = min[ 1.5*10 , 10] + (290*10)0.5 =
63.85 mm
LH2 = 70 =
70 mm
LH3 = 8*(10 + 10) =
160 mm
LH = min[ 63.85, 70, 160] + 10 =
73.85 mm
LI1 = (290*10)0.5 =
53.85 mm
LI2 = Lpr2 =
75 mm
LI3 = 8*(10 + 10) =
160 mm
LI = min[ 53.85, 75, 160] =
53.85 mm
Corroded
LR1 = (1,000*10)0.5 + 75 =
175 mm
LR2 = ((1,000 + 10)*(10 + 10))0.5 =
142.13 mm
LR3 = 2*290 =
580 mm
LR = min[ 175, 142.13, 580] =
142.13 mm
LH1 = min[ 1.5*10 , 10] + (290*10)0.5 =
63.85 mm
LH2 = 70 =
70 mm
LH3 = 8*(10 + 10) =
160 mm
LH = min[ 63.85, 70, 160] + 10 =
73.85 mm
LI1 = (290*10)0.5 =
53.85 mm
LI2 = Lpr2 =
75 mm
LI3 = 8*(10 + 10) =
160 mm
LI = min[ 53.85, 75, 160] =
53.85 mm
Operating Hot & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.56)} / 100 =
26.831 cm2
A2 = 2*(73.85 - 0.56)*10*1 / 100 =
14.6582 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.831 + 14.6582 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9795 cm2
Ar = (580*0.56 + 2*10*0.56*(1 - 1)) / 100 =
3.2531 cm2
AT = 68.9795 cm2 ≥ Ar = 3.2531 cm2
Operating Hot & New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.58)} / 100 =
26.7877 cm2
A2 = 2*(73.85 - 0.58)*10*1 / 100 =
14.6551 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.7877 + 14.6551 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9331 cm2
Ar = (580*0.58 + 2*10*0.58*(1 - 1)) / 100 =
3.3415 cm2
AT = 68.9331 cm2 ≥ Ar = 3.3415 cm2
Empty Cold & Corroded Wind Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.0127)} / 100 =
28.3892 cm2
A2 = 2*(73.85 - 0.0127)*10*1 / 100 =
14.7678 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 28.3892 + 14.7678 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.6473 cm2
Ar = (580*0.0127 + 2*10*0.0127*(1 - 1)) / 100 =
0.0738 cm2
AT = 70.6473 cm2 ≥ Ar = 0.0738 cm2
Empty Cold & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.26)} / 100 =
27.6982 cm2
A2 = 2*(73.85 - 0.26)*10*1 / 100 =
14.7192 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.6982 + 14.7192 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.9077 cm2
Ar = (580*0.26 + 2*10*0.26*(1 - 1)) / 100 =
1.4836 cm2
AT = 69.9077 cm2 ≥ Ar = 1.4836 cm2
Empty Cold & New Wind Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.0063)} / 100 =
28.4075 cm2
A2 = 2*(73.85 - 0.0063)*10*1 / 100 =
14.7691 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 28.4075 + 14.7691 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.667 cm2
Ar = (580*0.0063 + 2*10*0.0063*(1 - 1)) / 100 =
0.0363 cm2
AT = 70.667 cm2 ≥ Ar = 0.0363 cm2
Empty Cold & New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.27)} / 100 =
27.6497 cm2
A2 = 2*(73.85 - 0.27)*10*1 / 100 =
14.7158 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.6497 + 14.7158 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.8557 cm2
Ar = (580*0.27 + 2*10*0.27*(1 - 1)) / 100 =
1.5827 cm2
AT = 69.8557 cm2 ≥ Ar = 1.5827 cm2
Field Test Corr Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.54)} / 100 =
26.8951 cm2
A2 = 2*(73.85 - 0.54)*10*1 / 100 =
14.6627 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.8951 + 14.6627 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.0481 cm2
Ar = (580*0.54 + 2*10*0.54*(1 - 1)) / 100 =
3.1223 cm2
AT = 69.0481 cm2 ≥ Ar = 3.1223 cm2
Field Test New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.55)} / 100 =
26.8526 cm2
A2 = 2*(73.85 - 0.55)*10*1 / 100 =
14.6597 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.8526 + 14.6597 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.0025 cm2
Ar = (580*0.55 + 2*10*0.55*(1 - 1)) / 100 =
3.2092 cm2
AT = 69.0025 cm2 ≥ Ar = 3.2092 cm2
External Pressure Hot & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.56)} / 100 =
26.831 cm2
A2 = 2*(73.85 - 0.56)*10*1 / 100 =
14.6582 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.831 + 14.6582 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9795 cm2
Ar = (580*0.56 + 2*10*0.56*(1 - 1)) / 100 =
3.2531 cm2
AT = 68.9795 cm2 ≥ Ar = 3.2531 cm2
Operating Hot & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.38)} / 100 =
27.3337 cm2
A2 = 2*(73.85 - 0.38)*10*1 / 100 =
14.6935 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.3337 + 14.6935 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.5176 cm2
Ar = (580*0.38 + 2*10*0.38*(1 - 1)) / 100 =
2.2274 cm2
AT = 69.5176 cm2 ≥ Ar = 2.2274 cm2
Operating Hot & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 1.3)} / 100 =
24.7232 cm2
A2 = 2*(73.85 - 1.3)*10*1 / 100 =
14.5098 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 24.7232 + 14.5098 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
66.7234 cm2
Ar = (580*1.3 + 2*10*1.3*(1 - 1)) / 100 =
7.5539 cm2
AT = 66.7234 cm2 ≥ Ar = 7.5539 cm2
Operating Hot & New Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.4)} / 100 =
27.2985 cm2
A2 = 2*(73.85 - 0.4)*10*1 / 100 =
14.691 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.2985 + 14.691 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.4799 cm2
Ar = (580*0.4 + 2*10*0.4*(1 - 1)) / 100 =
2.2992 cm2
AT = 69.4799 cm2 ≥ Ar = 2.2992 cm2
Operating Hot & New Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 1.35)} / 100 =
24.6009 cm2
A2 = 2*(73.85 - 1.35)*10*1 / 100 =
14.5012 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 24.6009 + 14.5012 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
66.5925 cm2
Ar = (580*1.35 + 2*10*1.35*(1 - 1)) / 100 =
7.8035 cm2
AT = 66.5925 cm2 ≥ Ar = 7.8035 cm2
Empty Cold & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.18)} / 100 =
27.9101 cm2
A2 = 2*(73.85 - 0.18)*10*1 / 100 =
14.7341 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.9101 + 14.7341 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.1345 cm2
Ar = (580*0.18 + 2*10*0.18*(1 - 1)) / 100 =
1.0514 cm2
AT = 70.1345 cm2 ≥ Ar = 1.0514 cm2
Empty Cold & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.51)} / 100 =
26.9638 cm2
A2 = 2*(73.85 - 0.51)*10*1 / 100 =
14.6675 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.9638 + 14.6675 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.1217 cm2
Ar = (580*0.51 + 2*10*0.51*(1 - 1)) / 100 =
2.9821 cm2
AT = 69.1217 cm2 ≥ Ar = 2.9821 cm2
Empty Cold & New Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.2)} / 100 =
27.8711 cm2
A2 = 2*(73.85 - 0.2)*10*1 / 100 =
14.7313 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.8711 + 14.7313 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.0927 cm2
Ar = (580*0.2 + 2*10*0.2*(1 - 1)) / 100 =
1.131 cm2
AT = 70.0927 cm2 ≥ Ar = 1.131 cm2
Empty Cold & New Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.56)} / 100 =
26.8273 cm2
A2 = 2*(73.85 - 0.56)*10*1 / 100 =
14.6579 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.8273 + 14.6579 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9755 cm2
Ar = (580*0.56 + 2*10*0.56*(1 - 1)) / 100 =
3.2607 cm2
AT = 68.9755 cm2 ≥ Ar = 3.2607 cm2
External Pressure Hot & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.38)} / 100 =
27.3337 cm2
A2 = 2*(73.85 - 0.38)*10*1 / 100 =
14.6935 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.3337 + 14.6935 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.5176 cm2
Ar = (580*0.38 + 2*10*0.38*(1 - 1)) / 100 =
2.2274 cm2
AT = 69.5176 cm2 ≥ Ar = 2.2274 cm2
External Pressure Hot & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 1.3)} / 100 =
24.7232 cm2
A2 = 2*(73.85 - 1.3)*10*1 / 100 =
14.5098 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 24.7232 + 14.5098 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
66.7234 cm2
Ar = (580*1.3 + 2*10*1.3*(1 - 1)) / 100 =
7.5539 cm2
AT = 66.7234 cm2 ≥ Ar = 7.5539 cm2
ACCESS OPENING 2 (A02)
ASME Section VIII Division 1, 2017 Edition Metric
Component
Skirt Opening
Description
ACCESS OPENING 2
Drawing Mark
A02
Sleeve Material
SA-516 70 (II-D Metric p. 18, ln. 33)
Pad Material
SA-516 70 (II-D Metric p. 18, ln. 33)
Location and Orientation
Attached to
Support Skirt #1
Orientation
radial
Offset, L
1,225 mm
Angle, θ
256°
Distance, r
1,080 mm
Through a
Category B Joint
No
Dimensions
Inside Diameter
580 mm
Nominal Wall
Thickness
10 mm
Skirt Thickness
10 mm
Leg41
6 mm
Leg42
10 mm
Leg43
6 mm
Pad Width, W
75 mm
Pad Thickness, te
10 mm
External
Projection
Available, Lpr1
70 mm
Internal
Projection, Lpr2
75 mm
Corrosion Inner
0 mm
Outer
0 mm
Skirt Opening Reinforcement Summary
Required
Thickness
tr
(mm)
Wind
Operating Hot & Corroded
Tensile
0
Compressive 0.56
Seismic
Tensile
0.38
Compressive 1.3
Wind
Operating Hot & New
Tensile
0
Compressive 0.58
Seismic
Tensile
0.4
Compressive 1.35
Wind
Empty Cold & Corroded
Tensile
0.0127
Compressive 0.26
Seismic
Tensile
0.18
Compressive 0.51
Wind
Empty Cold & New
Tensile
0.0063
Compressive 0.27
Seismic
Tensile
0.2
Compressive 0.56
Field Test Corr
Wind
Tensile
0
Compressive 0.54
Field Test New
Wind
Tensile
0
Compressive 0.55
Wind
External Pressure Hot & Corroded
Tensile
0
Compressive 0.56
Seismic
Tensile
0.38
Compressive 1.3
Note: Skirt required thickness of zero on tensile side indicates load is compressive.
AT
(cm2)
Ar
(cm2)
Ratio
Status
N/A
OK
68.9795 3.2531 21.2039
OK
69.5176 2.2274 31.2103
OK
66.7234 7.5539 8.8329
OK
70.686
N/A
OK
68.9331 3.3415 20.6293
OK
69.4799 2.2992 30.2188
OK
66.5925 7.8035 8.5337
OK
70.6473 0.0738 956.7967
OK
69.9077 1.4836 47.1195
OK
70.1345 1.0514 66.7076
OK
69.1217 2.9821 23.179
OK
70.667
OK
70.686
0
0
0.0363 1,946.1428
69.8557 1.5827 44.1362
OK
70.0927 1.131
61.9755
OK
68.9755 3.2607 21.1534
OK
70.686
N/A
OK
69.0481 3.1223 22.1145
OK
70.686
N/A
OK
69.0025 3.2092 21.5017
OK
70.686
N/A
OK
68.9795 3.2531 21.2039
OK
69.5176 2.2274 31.2103
OK
66.7234 7.5539 8.8329
OK
0
0
0
Skirt Opening Reinforcement Calculations
LR1 = (Reff*t)0.5 + W
(4.5.6)
LR2 = ((Reff + t)*(t + te))0.5
(4.5.7)
LR3 = 2*Rn
(4.5.8)
LR = min[ LR1, LR2, LR3]
(4.5.9)
LH1 = min[ 1.5*t , te] + (Rn*tn)0.5
(4.5.11)
LH2 = Lpr1
(4.5.12)
LH3 = 8*(t + te)
(4.5.13)
LH = min[ LH1, LH2, LH3] + t
(4.5.14)
LI1 = (Rn*tn)0.5
(4.5.16)
LI2 = Lpr2
(4.5.17)
LI3 = 8*(t + te)
(4.5.18)
LI = min[ LI1, LI2, LI3]
(4.5.19)
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
fr3 = min[ min[ Sn , Sp ] / S , 1 ]
fr4 = min[ Sp / S , 1 ]
A1 = 2*LR*(E1*t - tr)
A2 = 2*(LH - tr)*tn*fr2
A3 = 2*LI*ti*fr2
A41 = L412*fr3
A42 = L422*fr4
A43 = L432*fr2
A5 = 2*min[ W , LR - tn ]*min[ te , LH ]*fr4
AT = A1 + A2 + A3 + A41 + A42 + A43 + A5
Ar = d*tr + 2*tn*tr*(1 - fr1)
New
LR1 = (1,000*10)0.5 + 75 =
175 mm
LR2 = ((1,000 + 10)*(10 + 10))0.5 =
142.13 mm
LR3 = 2*290 =
580 mm
LR = min[ 175, 142.13, 580] =
142.13 mm
LH1 = min[ 1.5*10 , 10] + (290*10)0.5 =
63.85 mm
LH2 = 70 =
70 mm
LH3 = 8*(10 + 10) =
160 mm
LH = min[ 63.85, 70, 160] + 10 =
73.85 mm
LI1 = (290*10)0.5 =
53.85 mm
LI2 = Lpr2 =
75 mm
LI3 = 8*(10 + 10) =
160 mm
LI = min[ 53.85, 75, 160] =
53.85 mm
Corroded
LR1 = (1,000*10)0.5 + 75 =
175 mm
LR2 = ((1,000 + 10)*(10 + 10))0.5 =
142.13 mm
LR3 = 2*290 =
580 mm
LR = min[ 175, 142.13, 580] =
142.13 mm
LH1 = min[ 1.5*10 , 10] + (290*10)0.5 =
63.85 mm
LH2 = 70 =
70 mm
LH3 = 8*(10 + 10) =
160 mm
LH = min[ 63.85, 70, 160] + 10 =
73.85 mm
LI1 = (290*10)0.5 =
53.85 mm
LI2 = Lpr2 =
75 mm
LI3 = 8*(10 + 10) =
160 mm
LI = min[ 53.85, 75, 160] =
53.85 mm
Operating Hot & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.56)} / 100 =
26.831 cm2
A2 = 2*(73.85 - 0.56)*10*1 / 100 =
14.6582 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.831 + 14.6582 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9795 cm2
Ar = (580*0.56 + 2*10*0.56*(1 - 1)) / 100 =
3.2531 cm2
AT = 68.9795 cm2 ≥ Ar = 3.2531 cm2
Operating Hot & New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.58)} / 100 =
26.7877 cm2
A2 = 2*(73.85 - 0.58)*10*1 / 100 =
14.6551 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.7877 + 14.6551 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9331 cm2
Ar = (580*0.58 + 2*10*0.58*(1 - 1)) / 100 =
3.3415 cm2
AT = 68.9331 cm2 ≥ Ar = 3.3415 cm2
Empty Cold & Corroded Wind Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.0127)} / 100 =
28.3892 cm2
A2 = 2*(73.85 - 0.0127)*10*1 / 100 =
14.7678 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 28.3892 + 14.7678 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.6473 cm2
Ar = (580*0.0127 + 2*10*0.0127*(1 - 1)) / 100 =
0.0738 cm2
AT = 70.6473 cm2 ≥ Ar = 0.0738 cm2
Empty Cold & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.26)} / 100 =
27.6982 cm2
A2 = 2*(73.85 - 0.26)*10*1 / 100 =
14.7192 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.6982 + 14.7192 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.9077 cm2
Ar = (580*0.26 + 2*10*0.26*(1 - 1)) / 100 =
1.4836 cm2
AT = 69.9077 cm2 ≥ Ar = 1.4836 cm2
Empty Cold & New Wind Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.0063)} / 100 =
28.4075 cm2
A2 = 2*(73.85 - 0.0063)*10*1 / 100 =
14.7691 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 28.4075 + 14.7691 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.667 cm2
Ar = (580*0.0063 + 2*10*0.0063*(1 - 1)) / 100 =
0.0363 cm2
AT = 70.667 cm2 ≥ Ar = 0.0363 cm2
Empty Cold & New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.27)} / 100 =
27.6497 cm2
A2 = 2*(73.85 - 0.27)*10*1 / 100 =
14.7158 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.6497 + 14.7158 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.8557 cm2
Ar = (580*0.27 + 2*10*0.27*(1 - 1)) / 100 =
1.5827 cm2
AT = 69.8557 cm2 ≥ Ar = 1.5827 cm2
Field Test Corr Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.54)} / 100 =
26.8951 cm2
A2 = 2*(73.85 - 0.54)*10*1 / 100 =
14.6627 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.8951 + 14.6627 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.0481 cm2
Ar = (580*0.54 + 2*10*0.54*(1 - 1)) / 100 =
3.1223 cm2
AT = 69.0481 cm2 ≥ Ar = 3.1223 cm2
Field Test New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.55)} / 100 =
26.8526 cm2
A2 = 2*(73.85 - 0.55)*10*1 / 100 =
14.6597 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.8526 + 14.6597 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.0025 cm2
Ar = (580*0.55 + 2*10*0.55*(1 - 1)) / 100 =
3.2092 cm2
AT = 69.0025 cm2 ≥ Ar = 3.2092 cm2
External Pressure Hot & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.56)} / 100 =
26.831 cm2
A2 = 2*(73.85 - 0.56)*10*1 / 100 =
14.6582 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.831 + 14.6582 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9795 cm2
Ar = (580*0.56 + 2*10*0.56*(1 - 1)) / 100 =
3.2531 cm2
AT = 68.9795 cm2 ≥ Ar = 3.2531 cm2
Operating Hot & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.38)} / 100 =
27.3337 cm2
A2 = 2*(73.85 - 0.38)*10*1 / 100 =
14.6935 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.3337 + 14.6935 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.5176 cm2
Ar = (580*0.38 + 2*10*0.38*(1 - 1)) / 100 =
2.2274 cm2
AT = 69.5176 cm2 ≥ Ar = 2.2274 cm2
Operating Hot & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 1.3)} / 100 =
24.7232 cm2
A2 = 2*(73.85 - 1.3)*10*1 / 100 =
14.5098 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 24.7232 + 14.5098 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
66.7234 cm2
Ar = (580*1.3 + 2*10*1.3*(1 - 1)) / 100 =
7.5539 cm2
AT = 66.7234 cm2 ≥ Ar = 7.5539 cm2
Operating Hot & New Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.4)} / 100 =
27.2985 cm2
A2 = 2*(73.85 - 0.4)*10*1 / 100 =
14.691 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.2985 + 14.691 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.4799 cm2
Ar = (580*0.4 + 2*10*0.4*(1 - 1)) / 100 =
2.2992 cm2
AT = 69.4799 cm2 ≥ Ar = 2.2992 cm2
Operating Hot & New Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 1.35)} / 100 =
24.6009 cm2
A2 = 2*(73.85 - 1.35)*10*1 / 100 =
14.5012 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 24.6009 + 14.5012 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
66.5925 cm2
Ar = (580*1.35 + 2*10*1.35*(1 - 1)) / 100 =
7.8035 cm2
AT = 66.5925 cm2 ≥ Ar = 7.8035 cm2
Empty Cold & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.18)} / 100 =
27.9101 cm2
A2 = 2*(73.85 - 0.18)*10*1 / 100 =
14.7341 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.9101 + 14.7341 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.1345 cm2
Ar = (580*0.18 + 2*10*0.18*(1 - 1)) / 100 =
1.0514 cm2
AT = 70.1345 cm2 ≥ Ar = 1.0514 cm2
Empty Cold & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.51)} / 100 =
26.9638 cm2
A2 = 2*(73.85 - 0.51)*10*1 / 100 =
14.6675 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.9638 + 14.6675 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.1217 cm2
Ar = (580*0.51 + 2*10*0.51*(1 - 1)) / 100 =
2.9821 cm2
AT = 69.1217 cm2 ≥ Ar = 2.9821 cm2
Empty Cold & New Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.2)} / 100 =
27.8711 cm2
A2 = 2*(73.85 - 0.2)*10*1 / 100 =
14.7313 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.8711 + 14.7313 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
70.0927 cm2
Ar = (580*0.2 + 2*10*0.2*(1 - 1)) / 100 =
1.131 cm2
AT = 70.0927 cm2 ≥ Ar = 1.131 cm2
Empty Cold & New Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.56)} / 100 =
26.8273 cm2
A2 = 2*(73.85 - 0.56)*10*1 / 100 =
14.6579 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 26.8273 + 14.6579 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
68.9755 cm2
Ar = (580*0.56 + 2*10*0.56*(1 - 1)) / 100 =
3.2607 cm2
AT = 68.9755 cm2 ≥ Ar = 3.2607 cm2
External Pressure Hot & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 0.38)} / 100 =
27.3337 cm2
A2 = 2*(73.85 - 0.38)*10*1 / 100 =
14.6935 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 27.3337 + 14.6935 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
69.5176 cm2
Ar = (580*0.38 + 2*10*0.38*(1 - 1)) / 100 =
2.2274 cm2
AT = 69.5176 cm2 ≥ Ar = 2.2274 cm2
External Pressure Hot & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
fr3 = min[ min[ 138 , 138 ] / 138 , 1 ] =
1
fr4 = min[ 138 / 138 , 1 ] =
1
A1 = {2*142.13*(1*10 - 1.3)} / 100 =
24.7232 cm2
A2 = 2*(73.85 - 1.3)*10*1 / 100 =
14.5098 cm2
A3 = 2*53.85*10*1 / 100 =
10.7703 cm2
A41 = 62*1 / 100 =
0.36 cm2
A42 = 102*1 / 100 =
1 cm2
A43 = 62*1 / 100 =
0.36 cm2
A5 = 2*min[ 75 , 142.13 - 10 ]*min[ 10 , 73.85 ]*1 / 100 =
15 cm2
AT = 24.7232 + 14.5098 + 10.7703 + 0.36 + 1 + 0.36 + 15 =
66.7234 cm2
Ar = (580*1.3 + 2*10*1.3*(1 - 1)) / 100 =
7.5539 cm2
AT = 66.7234 cm2 ≥ Ar = 7.5539 cm2
VENT 1 (V01)
ASME Section VIII Division 1, 2017 Edition Metric
Component
Skirt Opening
Description
VENT 1
Drawing Mark
V01
Sleeve Material
SA-106 B Smls Pipe (II-D Metric p. 14, ln. 10)
Location and Orientation
Attached to
Support Skirt #1
Orientation
radial
Offset, L
1,600 mm
Angle, θ
60°
Distance, r
1,085 mm
Through a
Category B Joint
No
Dimensions
Pipe NPS and
Schedule
NPS 4 Sch 80 (XS) DN 100
Inside Diameter
97.18 mm
Nominal Wall
Thickness
8.56 mm
Skirt Thickness
10 mm
Leg41
6 mm
Leg43
6 mm
External
Projection
Available, Lpr1
75 mm
Internal
Projection, Lpr2
115 mm
Corrosion Inner
0 mm
Outer
0 mm
Skirt Opening Reinforcement Summary
Required
Thickness
tr
(mm)
Wind
Operating Hot & Corroded
Tensile
0
Compressive 0.54
Seismic
Tensile
0.34
Compressive 1.22
Wind
Operating Hot & New
Tensile
0
Compressive 0.56
Seismic
Tensile
0.35
Compressive 1.26
Wind
Empty Cold & Corroded
Tensile
0.0059
Compressive 0.24
Seismic
Tensile
0.17
Compressive 0.48
Wind
Empty Cold & New
Tensile
0
Compressive 0.26
Seismic
Tensile
0.18
Compressive 0.53
Field Test Corr
Wind
Tensile
0
Compressive 0.52
Field Test New
Wind
Tensile
0
Compressive 0.54
Wind
External Pressure Hot & Corroded
Tensile
0
Compressive 0.54
Seismic
Tensile
0.34
Compressive 1.22
Note: Skirt required thickness of zero on tensile side indicates load is compressive.
AT
(cm2)
Ar
(cm2)
Ratio
Status
N/A
OK
26.3518 0.5411 48.7018
OK
26.7826 0.3357 79.791
OK
24.9301 1.219
20.4505
OK
N/A
OK
26.32
0.5563 47.3151
OK
26.76
0.3464 77.2409
OK
24.8451 1.2595 19.7255
OK
27.4742 0.0059 4,654.4061
OK
26.988
0.2377 113.5174
OK
27.1415 0.1645 164.9538
OK
26.478
OK
27.4865 0
27.4865 0
0.4809 55.0574
27.4865 0
N/A
OK
26.9523 0.2548 105.7898
OK
27.1165 0.1765 153.6608
OK
26.3832 0.5261 50.1471
OK
27.4865 0
N/A
OK
26.3909 0.5224 50.5146
OK
27.4865 0
N/A
OK
26.3596 0.5374 49.0531
OK
27.4865 0
N/A
OK
26.3518 0.5411 48.7018
OK
26.7826 0.3357 79.791
OK
24.9301 1.219
OK
20.4505
Skirt Opening Reinforcement Calculations
LR = min[ (Reff*t)0.5, 2*Rn]
(4.5.4)
LH1 = min[ 1.5*t , te] + (Rn*tn)0.5
(4.5.11)
LH2 = Lpr1
(4.5.12)
LH3 = 8*(t + te)
(4.5.13)
LH = min[ LH1, LH2, LH3] + t
(4.5.14)
LI1 = (Rn*tn)0.5
(4.5.16)
LI2 = Lpr2
(4.5.17)
LI3 = 8*(t + te)
(4.5.18)
LI = min[ LI1, LI2, LI3]
(4.5.19)
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
A1 = 2*LR*(E1*t - tr)
A2 = 2*(LH - tr)*tn*fr2
A3 = 2*LI*ti*fr2
A41 = L412*fr2
A43 = L432*fr2
AT = A1 + A2 + A3 + A41 + A43
Ar = d*tr + 2*tn*tr*(1 - fr1)
New
LR = min[ (1,000*10)0.5, 2*48.59] =
97.18 mm
LH1 = min[ 1.5*10 , 0] + (48.59*8.56)0.5 =
20.39 mm
LH2 = 75 =
75 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 20.39, 75, 80] + 10 =
30.39 mm
LI1 = (48.59*8.56)0.5 =
20.39 mm
LI2 = Lpr2 =
115 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 20.39, 115, 80] =
20.39 mm
Corroded
LR = min[ (1,000*10)0.5, 2*48.59] =
97.18 mm
LH1 = min[ 1.5*10 , 0] + (48.59*8.56)0.5 =
20.39 mm
LH2 = 75 =
75 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 20.39, 75, 80] + 10 =
30.39 mm
LI1 = (48.59*8.56)0.5 =
20.39 mm
LI2 = Lpr2 =
115 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 20.39, 115, 80] =
20.39 mm
Operating Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.54)} / 100 =
18.3808 cm2
A2 = 2*(30.39 - 0.54)*8.56*0.8551 / 100 =
4.3699 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.3808 + 4.3699 + 2.9855 + 0.3078 + 0.3078 =
26.3518 cm2
Ar = (97.18*0.54 + 2*8.56*0.54*(1 - 0.8551)) / 100 =
0.5411 cm2
AT = 26.3518 cm2 ≥ Ar = 0.5411 cm2
Operating Hot & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.56)} / 100 =
18.3512 cm2
A2 = 2*(30.39 - 0.56)*8.56*0.8551 / 100 =
4.3677 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.3512 + 4.3677 + 2.9855 + 0.3078 + 0.3078 =
26.32 cm2
Ar = (97.18*0.56 + 2*8.56*0.56*(1 - 0.8551)) / 100 =
0.5563 cm2
AT = 26.32 cm2 ≥ Ar = 0.5563 cm2
Empty Cold & Corroded Wind Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.0059)} / 100 =
19.4245 cm2
A2 = 2*(30.39 - 0.0059)*8.56*0.8551 / 100 =
4.4485 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.4245 + 4.4485 + 2.9855 + 0.3078 + 0.3078 =
27.4742 cm2
Ar = (97.18*0.0059 + 2*8.56*0.0059*(1 - 0.8551)) / 100 =
0.0059 cm2
AT = 27.4742 cm2 ≥ Ar = 0.0059 cm2
Empty Cold & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.24)} / 100 =
18.9724 cm2
A2 = 2*(30.39 - 0.24)*8.56*0.8551 / 100 =
4.4145 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.9724 + 4.4145 + 2.9855 + 0.3078 + 0.3078 =
26.988 cm2
Ar = (97.18*0.24 + 2*8.56*0.24*(1 - 0.8551)) / 100 =
0.2377 cm2
AT = 26.988 cm2 ≥ Ar = 0.2377 cm2
Empty Cold & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.26)} / 100 =
18.9391 cm2
A2 = 2*(30.39 - 0.26)*8.56*0.8551 / 100 =
4.412 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.9391 + 4.412 + 2.9855 + 0.3078 + 0.3078 =
26.9523 cm2
Ar = (97.18*0.26 + 2*8.56*0.26*(1 - 0.8551)) / 100 =
0.2548 cm2
AT = 26.9523 cm2 ≥ Ar = 0.2548 cm2
Field Test Corr Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.52)} / 100 =
18.4171 cm2
A2 = 2*(30.39 - 0.52)*8.56*0.8551 / 100 =
4.3726 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.4171 + 4.3726 + 2.9855 + 0.3078 + 0.3078 =
26.3909 cm2
Ar = (97.18*0.52 + 2*8.56*0.52*(1 - 0.8551)) / 100 =
0.5224 cm2
AT = 26.3909 cm2 ≥ Ar = 0.5224 cm2
Field Test New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.54)} / 100 =
18.388 cm2
A2 = 2*(30.39 - 0.54)*8.56*0.8551 / 100 =
4.3705 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.388 + 4.3705 + 2.9855 + 0.3078 + 0.3078 =
26.3596 cm2
Ar = (97.18*0.54 + 2*8.56*0.54*(1 - 0.8551)) / 100 =
0.5374 cm2
AT = 26.3596 cm2 ≥ Ar = 0.5374 cm2
External Pressure Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.54)} / 100 =
18.3808 cm2
A2 = 2*(30.39 - 0.54)*8.56*0.8551 / 100 =
4.3699 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.3808 + 4.3699 + 2.9855 + 0.3078 + 0.3078 =
26.3518 cm2
Ar = (97.18*0.54 + 2*8.56*0.54*(1 - 0.8551)) / 100 =
0.5411 cm2
AT = 26.3518 cm2 ≥ Ar = 0.5411 cm2
Operating Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.34)} / 100 =
18.7814 cm2
A2 = 2*(30.39 - 0.34)*8.56*0.8551 / 100 =
4.4001 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7814 + 4.4001 + 2.9855 + 0.3078 + 0.3078 =
26.7826 cm2
Ar = (97.18*0.34 + 2*8.56*0.34*(1 - 0.8551)) / 100 =
0.3357 cm2
AT = 26.7826 cm2 ≥ Ar = 0.3357 cm2
Operating Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 1.22)} / 100 =
17.0586 cm2
A2 = 2*(30.39 - 1.22)*8.56*0.8551 / 100 =
4.2703 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 17.0586 + 4.2703 + 2.9855 + 0.3078 + 0.3078 =
24.9301 cm2
Ar = (97.18*1.22 + 2*8.56*1.22*(1 - 0.8551)) / 100 =
1.219 cm2
AT = 24.9301 cm2 ≥ Ar = 1.219 cm2
Operating Hot & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.35)} / 100 =
18.7604 cm2
A2 = 2*(30.39 - 0.35)*8.56*0.8551 / 100 =
4.3985 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7604 + 4.3985 + 2.9855 + 0.3078 + 0.3078 =
26.76 cm2
Ar = (97.18*0.35 + 2*8.56*0.35*(1 - 0.8551)) / 100 =
0.3464 cm2
AT = 26.76 cm2 ≥ Ar = 0.3464 cm2
Operating Hot & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 1.26)} / 100 =
16.9796 cm2
A2 = 2*(30.39 - 1.26)*8.56*0.8551 / 100 =
4.2644 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 16.9796 + 4.2644 + 2.9855 + 0.3078 + 0.3078 =
24.8451 cm2
Ar = (97.18*1.26 + 2*8.56*1.26*(1 - 0.8551)) / 100 =
1.2595 cm2
AT = 24.8451 cm2 ≥ Ar = 1.2595 cm2
Empty Cold & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.17)} / 100 =
19.1151 cm2
A2 = 2*(30.39 - 0.17)*8.56*0.8551 / 100 =
4.4252 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.1151 + 4.4252 + 2.9855 + 0.3078 + 0.3078 =
27.1415 cm2
Ar = (97.18*0.17 + 2*8.56*0.17*(1 - 0.8551)) / 100 =
0.1645 cm2
AT = 27.1415 cm2 ≥ Ar = 0.1645 cm2
Empty Cold & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.48)} / 100 =
18.4981 cm2
A2 = 2*(30.39 - 0.48)*8.56*0.8551 / 100 =
4.3787 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.4981 + 4.3787 + 2.9855 + 0.3078 + 0.3078 =
26.478 cm2
Ar = (97.18*0.48 + 2*8.56*0.48*(1 - 0.8551)) / 100 =
0.4809 cm2
AT = 26.478 cm2 ≥ Ar = 0.4809 cm2
Empty Cold & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.18)} / 100 =
19.0918 cm2
A2 = 2*(30.39 - 0.18)*8.56*0.8551 / 100 =
4.4235 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.0918 + 4.4235 + 2.9855 + 0.3078 + 0.3078 =
27.1165 cm2
Ar = (97.18*0.18 + 2*8.56*0.18*(1 - 0.8551)) / 100 =
0.1765 cm2
AT = 27.1165 cm2 ≥ Ar = 0.1765 cm2
Empty Cold & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.53)} / 100 =
18.41 cm2
A2 = 2*(30.39 - 0.53)*8.56*0.8551 / 100 =
4.3721 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.41 + 4.3721 + 2.9855 + 0.3078 + 0.3078 =
26.3832 cm2
Ar = (97.18*0.53 + 2*8.56*0.53*(1 - 0.8551)) / 100 =
0.5261 cm2
AT = 26.3832 cm2 ≥ Ar = 0.5261 cm2
External Pressure Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.34)} / 100 =
18.7814 cm2
A2 = 2*(30.39 - 0.34)*8.56*0.8551 / 100 =
4.4001 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7814 + 4.4001 + 2.9855 + 0.3078 + 0.3078 =
26.7826 cm2
Ar = (97.18*0.34 + 2*8.56*0.34*(1 - 0.8551)) / 100 =
0.3357 cm2
AT = 26.7826 cm2 ≥ Ar = 0.3357 cm2
External Pressure Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 1.22)} / 100 =
17.0586 cm2
A2 = 2*(30.39 - 1.22)*8.56*0.8551 / 100 =
4.2703 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 17.0586 + 4.2703 + 2.9855 + 0.3078 + 0.3078 =
24.9301 cm2
Ar = (97.18*1.22 + 2*8.56*1.22*(1 - 0.8551)) / 100 =
1.219 cm2
AT = 24.9301 cm2 ≥ Ar = 1.219 cm2
VENT 2 (V02)
ASME Section VIII Division 1, 2017 Edition Metric
Component
Skirt Opening
Description
VENT 2
Drawing Mark
V02
Sleeve Material
SA-106 B Smls Pipe (II-D Metric p. 14, ln. 10)
Location and Orientation
Attached to
Support Skirt #1
Orientation
radial
Offset, L
1,600 mm
Angle, θ
180°
Distance, r
1,085 mm
Through a
Category B Joint
No
Dimensions
Pipe NPS and
Schedule
NPS 4 Sch 80 (XS) DN 100
Inside Diameter
97.18 mm
Nominal Wall
Thickness
8.56 mm
Skirt Thickness
10 mm
Leg41
6 mm
Leg43
6 mm
External
Projection
Available, Lpr1
75 mm
Internal
Projection, Lpr2
115 mm
Corrosion Inner
0 mm
Outer
0 mm
Skirt Opening Reinforcement Summary
Required
Thickness
tr
(mm)
Wind
Operating Hot & Corroded
Tensile
0
Compressive 0.54
Seismic
Tensile
0.34
Compressive 1.22
Wind
Operating Hot & New
Tensile
0
Compressive 0.56
Seismic
Tensile
0.35
Compressive 1.26
Wind
Empty Cold & Corroded
Tensile
0.0059
Compressive 0.24
Seismic
Tensile
0.17
Compressive 0.48
Wind
Empty Cold & New
Tensile
0
Compressive 0.26
Seismic
Tensile
0.18
Compressive 0.53
Field Test Corr
Wind
Tensile
0
Compressive 0.52
Field Test New
Wind
Tensile
0
Compressive 0.54
Wind
External Pressure Hot & Corroded
Tensile
0
Compressive 0.54
Seismic
Tensile
0.34
Compressive 1.22
Note: Skirt required thickness of zero on tensile side indicates load is compressive.
AT
(cm2)
Ar
(cm2)
Ratio
Status
N/A
OK
26.3518 0.5411 48.7018
OK
26.7826 0.3357 79.791
OK
24.9301 1.219
20.4505
OK
N/A
OK
26.32
0.5563 47.3151
OK
26.76
0.3464 77.2409
OK
24.8451 1.2595 19.7255
OK
27.4742 0.0059 4,654.4061
OK
26.988
0.2377 113.5174
OK
27.1415 0.1645 164.9538
OK
26.478
OK
27.4865 0
27.4865 0
0.4809 55.0574
27.4865 0
N/A
OK
26.9523 0.2548 105.7898
OK
27.1165 0.1765 153.6608
OK
26.3832 0.5261 50.1471
OK
27.4865 0
N/A
OK
26.3909 0.5224 50.5146
OK
27.4865 0
N/A
OK
26.3596 0.5374 49.0531
OK
27.4865 0
N/A
OK
26.3518 0.5411 48.7018
OK
26.7826 0.3357 79.791
OK
24.9301 1.219
OK
20.4505
Skirt Opening Reinforcement Calculations
LR = min[ (Reff*t)0.5, 2*Rn]
(4.5.4)
LH1 = min[ 1.5*t , te] + (Rn*tn)0.5
(4.5.11)
LH2 = Lpr1
(4.5.12)
LH3 = 8*(t + te)
(4.5.13)
LH = min[ LH1, LH2, LH3] + t
(4.5.14)
LI1 = (Rn*tn)0.5
(4.5.16)
LI2 = Lpr2
(4.5.17)
LI3 = 8*(t + te)
(4.5.18)
LI = min[ LI1, LI2, LI3]
(4.5.19)
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
A1 = 2*LR*(E1*t - tr)
A2 = 2*(LH - tr)*tn*fr2
A3 = 2*LI*ti*fr2
A41 = L412*fr2
A43 = L432*fr2
AT = A1 + A2 + A3 + A41 + A43
Ar = d*tr + 2*tn*tr*(1 - fr1)
New
LR = min[ (1,000*10)0.5, 2*48.59] =
97.18 mm
LH1 = min[ 1.5*10 , 0] + (48.59*8.56)0.5 =
20.39 mm
LH2 = 75 =
75 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 20.39, 75, 80] + 10 =
30.39 mm
LI1 = (48.59*8.56)0.5 =
20.39 mm
LI2 = Lpr2 =
115 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 20.39, 115, 80] =
20.39 mm
Corroded
LR = min[ (1,000*10)0.5, 2*48.59] =
97.18 mm
LH1 = min[ 1.5*10 , 0] + (48.59*8.56)0.5 =
20.39 mm
LH2 = 75 =
75 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 20.39, 75, 80] + 10 =
30.39 mm
LI1 = (48.59*8.56)0.5 =
20.39 mm
LI2 = Lpr2 =
115 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 20.39, 115, 80] =
20.39 mm
Operating Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.54)} / 100 =
18.3808 cm2
A2 = 2*(30.39 - 0.54)*8.56*0.8551 / 100 =
4.3699 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.3808 + 4.3699 + 2.9855 + 0.3078 + 0.3078 =
26.3518 cm2
Ar = (97.18*0.54 + 2*8.56*0.54*(1 - 0.8551)) / 100 =
0.5411 cm2
AT = 26.3518 cm2 ≥ Ar = 0.5411 cm2
Operating Hot & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.56)} / 100 =
18.3512 cm2
A2 = 2*(30.39 - 0.56)*8.56*0.8551 / 100 =
4.3677 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.3512 + 4.3677 + 2.9855 + 0.3078 + 0.3078 =
26.32 cm2
Ar = (97.18*0.56 + 2*8.56*0.56*(1 - 0.8551)) / 100 =
0.5563 cm2
AT = 26.32 cm2 ≥ Ar = 0.5563 cm2
Empty Cold & Corroded Wind Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.0059)} / 100 =
19.4245 cm2
A2 = 2*(30.39 - 0.0059)*8.56*0.8551 / 100 =
4.4485 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.4245 + 4.4485 + 2.9855 + 0.3078 + 0.3078 =
27.4742 cm2
Ar = (97.18*0.0059 + 2*8.56*0.0059*(1 - 0.8551)) / 100 =
0.0059 cm2
AT = 27.4742 cm2 ≥ Ar = 0.0059 cm2
Empty Cold & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.24)} / 100 =
18.9724 cm2
A2 = 2*(30.39 - 0.24)*8.56*0.8551 / 100 =
4.4145 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.9724 + 4.4145 + 2.9855 + 0.3078 + 0.3078 =
26.988 cm2
Ar = (97.18*0.24 + 2*8.56*0.24*(1 - 0.8551)) / 100 =
0.2377 cm2
AT = 26.988 cm2 ≥ Ar = 0.2377 cm2
Empty Cold & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.26)} / 100 =
18.9391 cm2
A2 = 2*(30.39 - 0.26)*8.56*0.8551 / 100 =
4.412 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.9391 + 4.412 + 2.9855 + 0.3078 + 0.3078 =
26.9523 cm2
Ar = (97.18*0.26 + 2*8.56*0.26*(1 - 0.8551)) / 100 =
0.2548 cm2
AT = 26.9523 cm2 ≥ Ar = 0.2548 cm2
Field Test Corr Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.52)} / 100 =
18.4171 cm2
A2 = 2*(30.39 - 0.52)*8.56*0.8551 / 100 =
4.3726 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.4171 + 4.3726 + 2.9855 + 0.3078 + 0.3078 =
26.3909 cm2
Ar = (97.18*0.52 + 2*8.56*0.52*(1 - 0.8551)) / 100 =
0.5224 cm2
AT = 26.3909 cm2 ≥ Ar = 0.5224 cm2
Field Test New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.54)} / 100 =
18.388 cm2
A2 = 2*(30.39 - 0.54)*8.56*0.8551 / 100 =
4.3705 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.388 + 4.3705 + 2.9855 + 0.3078 + 0.3078 =
26.3596 cm2
Ar = (97.18*0.54 + 2*8.56*0.54*(1 - 0.8551)) / 100 =
0.5374 cm2
AT = 26.3596 cm2 ≥ Ar = 0.5374 cm2
External Pressure Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.54)} / 100 =
18.3808 cm2
A2 = 2*(30.39 - 0.54)*8.56*0.8551 / 100 =
4.3699 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.3808 + 4.3699 + 2.9855 + 0.3078 + 0.3078 =
26.3518 cm2
Ar = (97.18*0.54 + 2*8.56*0.54*(1 - 0.8551)) / 100 =
0.5411 cm2
AT = 26.3518 cm2 ≥ Ar = 0.5411 cm2
Operating Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.34)} / 100 =
18.7814 cm2
A2 = 2*(30.39 - 0.34)*8.56*0.8551 / 100 =
4.4001 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7814 + 4.4001 + 2.9855 + 0.3078 + 0.3078 =
26.7826 cm2
Ar = (97.18*0.34 + 2*8.56*0.34*(1 - 0.8551)) / 100 =
0.3357 cm2
AT = 26.7826 cm2 ≥ Ar = 0.3357 cm2
Operating Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 1.22)} / 100 =
17.0586 cm2
A2 = 2*(30.39 - 1.22)*8.56*0.8551 / 100 =
4.2703 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 17.0586 + 4.2703 + 2.9855 + 0.3078 + 0.3078 =
24.9301 cm2
Ar = (97.18*1.22 + 2*8.56*1.22*(1 - 0.8551)) / 100 =
1.219 cm2
AT = 24.9301 cm2 ≥ Ar = 1.219 cm2
Operating Hot & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.35)} / 100 =
18.7604 cm2
A2 = 2*(30.39 - 0.35)*8.56*0.8551 / 100 =
4.3985 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7604 + 4.3985 + 2.9855 + 0.3078 + 0.3078 =
26.76 cm2
Ar = (97.18*0.35 + 2*8.56*0.35*(1 - 0.8551)) / 100 =
0.3464 cm2
AT = 26.76 cm2 ≥ Ar = 0.3464 cm2
Operating Hot & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 1.26)} / 100 =
16.9796 cm2
A2 = 2*(30.39 - 1.26)*8.56*0.8551 / 100 =
4.2644 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 16.9796 + 4.2644 + 2.9855 + 0.3078 + 0.3078 =
24.8451 cm2
Ar = (97.18*1.26 + 2*8.56*1.26*(1 - 0.8551)) / 100 =
1.2595 cm2
AT = 24.8451 cm2 ≥ Ar = 1.2595 cm2
Empty Cold & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.17)} / 100 =
19.1151 cm2
A2 = 2*(30.39 - 0.17)*8.56*0.8551 / 100 =
4.4252 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.1151 + 4.4252 + 2.9855 + 0.3078 + 0.3078 =
27.1415 cm2
Ar = (97.18*0.17 + 2*8.56*0.17*(1 - 0.8551)) / 100 =
0.1645 cm2
AT = 27.1415 cm2 ≥ Ar = 0.1645 cm2
Empty Cold & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.48)} / 100 =
18.4981 cm2
A2 = 2*(30.39 - 0.48)*8.56*0.8551 / 100 =
4.3787 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.4981 + 4.3787 + 2.9855 + 0.3078 + 0.3078 =
26.478 cm2
Ar = (97.18*0.48 + 2*8.56*0.48*(1 - 0.8551)) / 100 =
0.4809 cm2
AT = 26.478 cm2 ≥ Ar = 0.4809 cm2
Empty Cold & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.18)} / 100 =
19.0918 cm2
A2 = 2*(30.39 - 0.18)*8.56*0.8551 / 100 =
4.4235 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.0918 + 4.4235 + 2.9855 + 0.3078 + 0.3078 =
27.1165 cm2
Ar = (97.18*0.18 + 2*8.56*0.18*(1 - 0.8551)) / 100 =
0.1765 cm2
AT = 27.1165 cm2 ≥ Ar = 0.1765 cm2
Empty Cold & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.53)} / 100 =
18.41 cm2
A2 = 2*(30.39 - 0.53)*8.56*0.8551 / 100 =
4.3721 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.41 + 4.3721 + 2.9855 + 0.3078 + 0.3078 =
26.3832 cm2
Ar = (97.18*0.53 + 2*8.56*0.53*(1 - 0.8551)) / 100 =
0.5261 cm2
AT = 26.3832 cm2 ≥ Ar = 0.5261 cm2
External Pressure Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.34)} / 100 =
18.7814 cm2
A2 = 2*(30.39 - 0.34)*8.56*0.8551 / 100 =
4.4001 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7814 + 4.4001 + 2.9855 + 0.3078 + 0.3078 =
26.7826 cm2
Ar = (97.18*0.34 + 2*8.56*0.34*(1 - 0.8551)) / 100 =
0.3357 cm2
AT = 26.7826 cm2 ≥ Ar = 0.3357 cm2
External Pressure Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 1.22)} / 100 =
17.0586 cm2
A2 = 2*(30.39 - 1.22)*8.56*0.8551 / 100 =
4.2703 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 17.0586 + 4.2703 + 2.9855 + 0.3078 + 0.3078 =
24.9301 cm2
Ar = (97.18*1.22 + 2*8.56*1.22*(1 - 0.8551)) / 100 =
1.219 cm2
AT = 24.9301 cm2 ≥ Ar = 1.219 cm2
VENT 3 (V03)
ASME Section VIII Division 1, 2017 Edition Metric
Component
Skirt Opening
Description
VENT 3
Drawing Mark
V03
Sleeve Material
SA-106 B Smls Pipe (II-D Metric p. 14, ln. 10)
Location and Orientation
Attached to
Support Skirt #1
Orientation
radial
Offset, L
1,600 mm
Angle, θ
300°
Distance, r
1,085 mm
Through a
Category B Joint
No
Dimensions
Pipe NPS and
Schedule
NPS 4 Sch 80 (XS) DN 100
Inside Diameter
97.18 mm
Nominal Wall
Thickness
8.56 mm
Skirt Thickness
10 mm
Leg41
6 mm
Leg43
6 mm
External
Projection
Available, Lpr1
75 mm
Internal
Projection, Lpr2
115 mm
Corrosion Inner
0 mm
Outer
0 mm
Skirt Opening Reinforcement Summary
Required
Thickness
tr
(mm)
Wind
Operating Hot & Corroded
Tensile
0
Compressive 0.54
Seismic
Tensile
0.34
Compressive 1.22
Wind
Operating Hot & New
Tensile
0
Compressive 0.56
Seismic
Tensile
0.35
Compressive 1.26
Wind
Empty Cold & Corroded
Tensile
0.0059
Compressive 0.24
Seismic
Tensile
0.17
Compressive 0.48
Wind
Empty Cold & New
Tensile
0
Compressive 0.26
Seismic
Tensile
0.18
Compressive 0.53
Field Test Corr
Wind
Tensile
0
Compressive 0.52
Field Test New
Wind
Tensile
0
Compressive 0.54
Wind
External Pressure Hot & Corroded
Tensile
0
Compressive 0.54
Seismic
Tensile
0.34
Compressive 1.22
Note: Skirt required thickness of zero on tensile side indicates load is compressive.
AT
(cm2)
Ar
(cm2)
Ratio
Status
N/A
OK
17.5521 0.5276 33.2669
OK
26.7826 0.3357 79.791
OK
16.5486 1.1887 13.9216
OK
18.353
N/A
OK
17.5296 0.5424 32.3174
OK
26.76
0.3464 77.2409
OK
16.4887 1.2282 13.4252
OK
27.4742 0.0059 4,654.4061
OK
18.0011 0.2318 77.6499
OK
27.1415 0.1645 164.9538
OK
17.6412 0.4689 37.619
OK
18.353
N/A
OK
17.9759 0.2484 72.3584
OK
27.1165 0.1765 153.6608
OK
17.5743 0.513
34.2566
OK
N/A
OK
17.5797 0.5094 34.5083
OK
18.353
N/A
OK
33.5075
OK
N/A
OK
17.5521 0.5276 33.2669
OK
26.7826 0.3357 79.791
OK
16.5486 1.1887 13.9216
OK
18.353
18.353
0
0
0
0
0
17.5576 0.524
18.353
0
Openings Subject to Axial Tension
LR = min[ (Reff*t)0.5, 2*Rn]
(4.5.4)
LH1 = min[ 1.5*t , te] + (Rn*tn)0.5
(4.5.11)
LH2 = Lpr1
(4.5.12)
LH3 = 8*(t + te)
(4.5.13)
LH = min[ LH1, LH2, LH3] + t
(4.5.14)
LI1 = (Rn*tn)0.5
(4.5.16)
LI2 = Lpr2
(4.5.17)
LI3 = 8*(t + te)
(4.5.18)
LI = min[ LI1, LI2, LI3]
(4.5.19)
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
A1 = 2*LR*(E1*t - tr)
A2 = 2*(LH - tr)*tn*fr2
A3 = 2*LI*ti*fr2
A41 = L412*fr2
A43 = L432*fr2
AT = A1 + A2 + A3 + A41 + A43
Ar = d*tr + 2*tn*tr*(1 - fr1)
New
LR = min[ (1,000*10)0.5, 2*48.59] =
97.18 mm
LH1 = min[ 1.5*10 , 0] + (48.59*8.56)0.5 =
20.39 mm
LH2 = 75 =
75 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 20.39, 75, 80] + 10 =
30.39 mm
LI1 = (48.59*8.56)0.5 =
20.39 mm
LI2 = Lpr2 =
115 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 20.39, 115, 80] =
20.39 mm
Corroded
LR = min[ (1,000*10)0.5, 2*48.59] =
97.18 mm
LH1 = min[ 1.5*10 , 0] + (48.59*8.56)0.5 =
20.39 mm
LH2 = 75 =
75 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 20.39, 75, 80] + 10 =
30.39 mm
LI1 = (48.59*8.56)0.5 =
20.39 mm
LI2 = Lpr2 =
115 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 20.39, 115, 80] =
20.39 mm
Empty Cold & Corroded Wind Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.0059)} / 100 =
19.4245 cm2
A2 = 2*(30.39 - 0.0059)*8.56*0.8551 / 100 =
4.4485 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.4245 + 4.4485 + 2.9855 + 0.3078 + 0.3078 =
27.4742 cm2
Ar = (97.18*0.0059 + 2*8.56*0.0059*(1 - 0.8551)) / 100 =
0.0059 cm2
AT = 27.4742 cm2 ≥ Ar = 0.0059 cm2
Operating Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.34)} / 100 =
18.7814 cm2
A2 = 2*(30.39 - 0.34)*8.56*0.8551 / 100 =
4.4001 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7814 + 4.4001 + 2.9855 + 0.3078 + 0.3078 =
26.7826 cm2
Ar = (97.18*0.34 + 2*8.56*0.34*(1 - 0.8551)) / 100 =
0.3357 cm2
AT = 26.7826 cm2 ≥ Ar = 0.3357 cm2
Operating Hot & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.35)} / 100 =
18.7604 cm2
A2 = 2*(30.39 - 0.35)*8.56*0.8551 / 100 =
4.3985 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7604 + 4.3985 + 2.9855 + 0.3078 + 0.3078 =
26.76 cm2
Ar = (97.18*0.35 + 2*8.56*0.35*(1 - 0.8551)) / 100 =
0.3464 cm2
AT = 26.76 cm2 ≥ Ar = 0.3464 cm2
Empty Cold & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.17)} / 100 =
19.1151 cm2
A2 = 2*(30.39 - 0.17)*8.56*0.8551 / 100 =
4.4252 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.1151 + 4.4252 + 2.9855 + 0.3078 + 0.3078 =
27.1415 cm2
Ar = (97.18*0.17 + 2*8.56*0.17*(1 - 0.8551)) / 100 =
0.1645 cm2
AT = 27.1415 cm2 ≥ Ar = 0.1645 cm2
Empty Cold & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.18)} / 100 =
19.0918 cm2
A2 = 2*(30.39 - 0.18)*8.56*0.8551 / 100 =
4.4235 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.0918 + 4.4235 + 2.9855 + 0.3078 + 0.3078 =
27.1165 cm2
Ar = (97.18*0.18 + 2*8.56*0.18*(1 - 0.8551)) / 100 =
0.1765 cm2
AT = 27.1165 cm2 ≥ Ar = 0.1765 cm2
External Pressure Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*97.18*(1*10 - 0.34)} / 100 =
18.7814 cm2
A2 = 2*(30.39 - 0.34)*8.56*0.8551 / 100 =
4.4001 cm2
A3 = 2*20.39*8.56*0.8551 / 100 =
2.9855 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.7814 + 4.4001 + 2.9855 + 0.3078 + 0.3078 =
26.7826 cm2
Ar = (97.18*0.34 + 2*8.56*0.34*(1 - 0.8551)) / 100 =
0.3357 cm2
AT = 26.7826 cm2 ≥ Ar = 0.3357 cm2
Division 2 4.5.17.3 Openings Subject to Axial Compression
γn = d / {2*(R*t)0.5}
(4.5.212)
γn > {(R / t) / 291 + 0.22}2
tn,eff = min[ tn , t]
ti,eff = min[ ti , t]
LR = 0.75*(R*t)0.5
LH = min[0.5*{(d / 2)*tn}0.5 , 2.5*tn , Lpr1 ]
LI = min[0.5*{(d / 2)*ti}0.5 , 2.5*ti , Lpr2 ]
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
A1 = 2*LR*(t - tr) - 2*tn,eff*(t - tr)*(1 - fr1)
A2 = 2*LH*tn,eff*fr2
A3 = 2*LI*ti,eff*fr2
A41 = L412*fr2
A43 = L432*fr2
AT = A1 + A2 + A3 + A41 + A43
Ar = d*tr
(4.5.211)
New
γn = 97.18 / {2*(1,000*10)0.5} =
0.4859
γn > {(1,000 / 10) / 291 + 0.22}2 =
0.3177
Area required factor for compressive side =
1
LR = 0.75*(1,000*10)0.5 =
75 mm
LH = min[0.5*{(97.18 / 2)*8.56}0.5 , 2.5*8.56 , 75 ] =
10.2 mm
LI = min[0.5*{(97.18 / 2)*8.56}0.5 , 2.5*8.56 , 115 ] =
10.2 mm
tn,eff = min[ 8.56 , 10] =
8.56 mm
ti,eff = min[ 8.56 , 10] =
8.56 mm
Corroded
γn = 97.18 / {2*(1,000*10)0.5} =
0.4859
γn > {(1,000 / 10) / 291 + 0.22}2 =
0.3177
Area required factor for compressive side =
1
LR = 0.75*(1,000*10)0.5 =
75 mm
LH = min[0.5*{(97.18 / 2)*8.56}0.5 , 2.5*8.56 , 75 ] =
10.2 mm
LI = min[0.5*{(97.18 / 2)*8.56}0.5 , 2.5*8.56 , 115 ] =
10.2 mm
tn,eff = min[ 8.56 , 10] =
8.56 mm
ti,eff = min[ 8.56 , 10] =
8.56 mm
Operating Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.54) - 2*8.56*(10 - 0.54)*(1 - 0.8551)} / 100 =
13.951 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 13.951 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.5521 cm2
Ar = (97.18*0.54) / 100 =
0.5276 cm2
AT = 17.5521 cm2 ≥ Ar = 0.5276 cm2
Operating Hot & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.56) - 2*8.56*(10 - 0.56)*(1 - 0.8551)} / 100 =
13.9285 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 13.9285 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.5296 cm2
Ar = (97.18*0.56) / 100 =
0.5424 cm2
AT = 17.5296 cm2 ≥ Ar = 0.5424 cm2
Empty Cold & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.24) - 2*8.56*(10 - 0.24)*(1 - 0.8551)} / 100 =
14.4 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 14.4 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
18.0011 cm2
Ar = (97.18*0.24) / 100 =
0.2318 cm2
AT = 18.0011 cm2 ≥ Ar = 0.2318 cm2
Empty Cold & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.26) - 2*8.56*(10 - 0.26)*(1 - 0.8551)} / 100 =
14.3748 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 14.3748 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.9759 cm2
Ar = (97.18*0.26) / 100 =
0.2484 cm2
AT = 17.9759 cm2 ≥ Ar = 0.2484 cm2
Field Test Corr Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.52) - 2*8.56*(10 - 0.52)*(1 - 0.8551)} / 100 =
13.9786 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 13.9786 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.5797 cm2
Ar = (97.18*0.52) / 100 =
0.5094 cm2
AT = 17.5797 cm2 ≥ Ar = 0.5094 cm2
Field Test New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.54) - 2*8.56*(10 - 0.54)*(1 - 0.8551)} / 100 =
13.9565 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 13.9565 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.5576 cm2
Ar = (97.18*0.54) / 100 =
0.524 cm2
AT = 17.5576 cm2 ≥ Ar = 0.524 cm2
External Pressure Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.54) - 2*8.56*(10 - 0.54)*(1 - 0.8551)} / 100 =
13.951 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 13.951 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.5521 cm2
Ar = (97.18*0.54) / 100 =
0.5276 cm2
AT = 17.5521 cm2 ≥ Ar = 0.5276 cm2
Operating Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 1.22) - 2*8.56*(10 - 1.22)*(1 - 0.8551)} / 100 =
12.9474 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 12.9474 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
16.5486 cm2
Ar = (97.18*1.22) / 100 =
1.1887 cm2
AT = 16.5486 cm2 ≥ Ar = 1.1887 cm2
Operating Hot & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 1.26) - 2*8.56*(10 - 1.26)*(1 - 0.8551)} / 100 =
12.8875 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 12.8875 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
16.4887 cm2
Ar = (97.18*1.26) / 100 =
1.2282 cm2
AT = 16.4887 cm2 ≥ Ar = 1.2282 cm2
Empty Cold & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.48) - 2*8.56*(10 - 0.48)*(1 - 0.8551)} / 100 =
14.04 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 14.04 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.6412 cm2
Ar = (97.18*0.48) / 100 =
0.4689 cm2
AT = 17.6412 cm2 ≥ Ar = 0.4689 cm2
Empty Cold & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 0.53) - 2*8.56*(10 - 0.53)*(1 - 0.8551)} / 100 =
13.9731 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 13.9731 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
17.5743 cm2
Ar = (97.18*0.53) / 100 =
0.513 cm2
AT = 17.5743 cm2 ≥ Ar = 0.513 cm2
External Pressure Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*75*(10 - 1.22) - 2*8.56*(10 - 1.22)*(1 - 0.8551)} / 100 =
12.9474 cm2
A2 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A3 = 2*10.2*8.56*0.8551 / 100 =
1.4928 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 12.9474 + 1.4928 + 1.4928 + 0.3078 + 0.3078 =
16.5486 cm2
Ar = (97.18*1.22) / 100 =
1.1887 cm2
AT = 16.5486 cm2 ≥ Ar = 1.1887 cm2
OPENING FOR N2 (PO2)
ASME Section VIII Division 1, 2017 Edition Metric
Component
Skirt Opening
Description
OPENING FOR N2
Drawing Mark
PO2
Sleeve Material
SA-516 70 (II-D Metric p. 18, ln. 33)
Location and Orientation
Attached to
Support Skirt #1
Orientation
radial
Offset, L
925 mm
Angle, θ
220°
Distance, r
1,105 mm
Through a
Category B Joint
No
Dimensions
Inside Diameter
488 mm
Nominal Wall
Thickness
10 mm
Skirt Thickness
10 mm
Leg41
6 mm
Leg43
6 mm
External
Projection
Available, Lpr1
95 mm
Internal
Projection, Lpr2
62 mm
Corrosion Inner
0 mm
Outer
0 mm
Skirt Opening Reinforcement Summary
Required
Thickness
tr
(mm)
Wind
Operating Hot & Corroded
Tensile
0
Compressive 0.58
Seismic
Tensile
0.42
Compressive 1.37
Wind
Operating Hot & New
Tensile
0
Compressive 0.59
Seismic
Tensile
0.44
Compressive 1.41
Wind
Empty Cold & Corroded
Tensile
0.0181
Compressive 0.27
Seismic
Tensile
0.19
Compressive 0.54
Wind
Empty Cold & New
0.0117
Compressive 0.29
Seismic
Field Test Corr
Tensile
Wind
Wind
External Pressure Hot & Corroded
Status
N/A
OK
41.2128 2.8077 14.6787
OK
41.5506 2.0583 20.1865
OK
39.4736 6.6654 5.9221
OK
42.4785 0
OK
41.1793 2.882
N/A
14.2883
OK
41.5206 2.1249 19.5403
OK
39.3748 6.8847 5.7191
OK
42.4386 0.0885 479.3046
OK
41.8852 1.316
31.8269
OK
42.0513 0.9476 44.3765
OK
41.2916 2.6329 15.683
OK
42.4529 0.057
OK
745.1991
0.21
42.0181 1.0214 41.1365
OK
Compressive 0.59
41.1812 2.8778 14.3098
OK
42.4785 0
OK
Tensile
Tensile
0
Tensile
0
Tensile
0
Compressive 0.58
Seismic
42.4785 0
Ratio
OK
Compressive 0.56
Wind
Ar
(cm2)
41.8477 1.3994 29.9036
Compressive 0.55
Field Test New
AT
(cm2)
Tensile
0.42
Compressive 1.37
Note: Skirt required thickness of zero on tensile side indicates load is compressive.
N/A
41.2692 2.6825 15.3844
OK
42.4785 0
OK
N/A
41.2363 2.7556 14.9644
OK
42.4785 0
OK
N/A
41.2128 2.8077 14.6787
OK
41.5506 2.0583 20.1865
OK
39.4736 6.6654 5.9221
OK
Skirt Opening Reinforcement Calculations
LR = min[ (Reff*t)0.5, 2*Rn]
(4.5.4)
LH1 = min[ 1.5*t , te] + (Rn*tn)0.5
(4.5.11)
LH2 = Lpr1
(4.5.12)
LH3 = 8*(t + te)
(4.5.13)
LH = min[ LH1, LH2, LH3] + t
(4.5.14)
LI1 = (Rn*tn)0.5
(4.5.16)
LI2 = Lpr2
(4.5.17)
LI3 = 8*(t + te)
(4.5.18)
LI = min[ LI1, LI2, LI3]
(4.5.19)
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
A1 = 2*LR*(E1*t - tr)
A2 = 2*(LH - tr)*tn*fr2
A3 = 2*LI*ti*fr2
A41 = L412*fr2
A43 = L432*fr2
AT = A1 + A2 + A3 + A41 + A43
Ar = d*tr + 2*tn*tr*(1 - fr1)
New
LR = min[ (1,000*10)0.5, 2*244] =
100 mm
LH1 = min[ 1.5*10 , 0] + (244*10)0.5 =
49.4 mm
LH2 = 95 =
95 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 49.4, 95, 80] + 10 =
59.4 mm
LI1 = (244*10)0.5 =
49.4 mm
LI2 = Lpr2 =
62 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 49.4, 62, 80] =
49.4 mm
Corroded
LR = min[ (1,000*10)0.5, 2*244] =
100 mm
LH1 = min[ 1.5*10 , 0] + (244*10)0.5 =
49.4 mm
LH2 = 95 =
95 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 49.4, 95, 80] + 10 =
59.4 mm
LI1 = (244*10)0.5 =
49.4 mm
LI2 = Lpr2 =
62 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 49.4, 62, 80] =
49.4 mm
Operating Hot & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.58)} / 100 =
18.8493 cm2
A2 = 2*(59.4 - 0.58)*10*1 / 100 =
11.7642 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 18.8493 + 11.7642 + 9.8793 + 0.36 + 0.36 =
41.2128 cm2
Ar = (488*0.58 + 2*10*0.58*(1 - 1)) / 100 =
2.8077 cm2
AT = 41.2128 cm2 ≥ Ar = 2.8077 cm2
Operating Hot & New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.59)} / 100 =
18.8188 cm2
A2 = 2*(59.4 - 0.59)*10*1 / 100 =
11.7612 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 18.8188 + 11.7612 + 9.8793 + 0.36 + 0.36 =
41.1793 cm2
Ar = (488*0.59 + 2*10*0.59*(1 - 1)) / 100 =
2.882 cm2
AT = 41.1793 cm2 ≥ Ar = 2.882 cm2
Empty Cold & Corroded Wind Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.0181)} / 100 =
19.9637 cm2
A2 = 2*(59.4 - 0.0181)*10*1 / 100 =
11.8756 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.9637 + 11.8756 + 9.8793 + 0.36 + 0.36 =
42.4386 cm2
Ar = (488*0.0181 + 2*10*0.0181*(1 - 1)) / 100 =
0.0885 cm2
AT = 42.4386 cm2 ≥ Ar = 0.0885 cm2
Empty Cold & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.27)} / 100 =
19.4606 cm2
A2 = 2*(59.4 - 0.27)*10*1 / 100 =
11.8253 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.4606 + 11.8253 + 9.8793 + 0.36 + 0.36 =
41.8852 cm2
Ar = (488*0.27 + 2*10*0.27*(1 - 1)) / 100 =
1.316 cm2
AT = 41.8852 cm2 ≥ Ar = 1.316 cm2
Empty Cold & New Wind Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.0117)} / 100 =
19.9767 cm2
A2 = 2*(59.4 - 0.0117)*10*1 / 100 =
11.8769 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.9767 + 11.8769 + 9.8793 + 0.36 + 0.36 =
42.4529 cm2
Ar = (488*0.0117 + 2*10*0.0117*(1 - 1)) / 100 =
0.057 cm2
AT = 42.4529 cm2 ≥ Ar = 0.057 cm2
Empty Cold & New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.29)} / 100 =
19.4265 cm2
A2 = 2*(59.4 - 0.29)*10*1 / 100 =
11.8219 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.4265 + 11.8219 + 9.8793 + 0.36 + 0.36 =
41.8477 cm2
Ar = (488*0.29 + 2*10*0.29*(1 - 1)) / 100 =
1.3994 cm2
AT = 41.8477 cm2 ≥ Ar = 1.3994 cm2
Field Test Corr Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.55)} / 100 =
18.9006 cm2
A2 = 2*(59.4 - 0.55)*10*1 / 100 =
11.7693 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 18.9006 + 11.7693 + 9.8793 + 0.36 + 0.36 =
41.2692 cm2
Ar = (488*0.55 + 2*10*0.55*(1 - 1)) / 100 =
2.6825 cm2
AT = 41.2692 cm2 ≥ Ar = 2.6825 cm2
Field Test New Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.56)} / 100 =
18.8706 cm2
A2 = 2*(59.4 - 0.56)*10*1 / 100 =
11.7663 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 18.8706 + 11.7663 + 9.8793 + 0.36 + 0.36 =
41.2363 cm2
Ar = (488*0.56 + 2*10*0.56*(1 - 1)) / 100 =
2.7556 cm2
AT = 41.2363 cm2 ≥ Ar = 2.7556 cm2
External Pressure Hot & Corroded Wind Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.58)} / 100 =
18.8493 cm2
A2 = 2*(59.4 - 0.58)*10*1 / 100 =
11.7642 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 18.8493 + 11.7642 + 9.8793 + 0.36 + 0.36 =
41.2128 cm2
Ar = (488*0.58 + 2*10*0.58*(1 - 1)) / 100 =
2.8077 cm2
AT = 41.2128 cm2 ≥ Ar = 2.8077 cm2
Operating Hot & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.42)} / 100 =
19.1564 cm2
A2 = 2*(59.4 - 0.42)*10*1 / 100 =
11.7949 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.1564 + 11.7949 + 9.8793 + 0.36 + 0.36 =
41.5506 cm2
Ar = (488*0.42 + 2*10*0.42*(1 - 1)) / 100 =
2.0583 cm2
AT = 41.5506 cm2 ≥ Ar = 2.0583 cm2
Operating Hot & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 1.37)} / 100 =
17.2683 cm2
A2 = 2*(59.4 - 1.37)*10*1 / 100 =
11.6061 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 17.2683 + 11.6061 + 9.8793 + 0.36 + 0.36 =
39.4736 cm2
Ar = (488*1.37 + 2*10*1.37*(1 - 1)) / 100 =
6.6654 cm2
AT = 39.4736 cm2 ≥ Ar = 6.6654 cm2
Operating Hot & New Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.44)} / 100 =
19.1292 cm2
A2 = 2*(59.4 - 0.44)*10*1 / 100 =
11.7922 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.1292 + 11.7922 + 9.8793 + 0.36 + 0.36 =
41.5206 cm2
Ar = (488*0.44 + 2*10*0.44*(1 - 1)) / 100 =
2.1249 cm2
AT = 41.5206 cm2 ≥ Ar = 2.1249 cm2
Operating Hot & New Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 1.41)} / 100 =
17.1784 cm2
A2 = 2*(59.4 - 1.41)*10*1 / 100 =
11.5971 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 17.1784 + 11.5971 + 9.8793 + 0.36 + 0.36 =
39.3748 cm2
Ar = (488*1.41 + 2*10*1.41*(1 - 1)) / 100 =
6.8847 cm2
AT = 39.3748 cm2 ≥ Ar = 6.8847 cm2
Empty Cold & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.19)} / 100 =
19.6116 cm2
A2 = 2*(59.4 - 0.19)*10*1 / 100 =
11.8404 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.6116 + 11.8404 + 9.8793 + 0.36 + 0.36 =
42.0513 cm2
Ar = (488*0.19 + 2*10*0.19*(1 - 1)) / 100 =
0.9476 cm2
AT = 42.0513 cm2 ≥ Ar = 0.9476 cm2
Empty Cold & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.54)} / 100 =
18.921 cm2
A2 = 2*(59.4 - 0.54)*10*1 / 100 =
11.7714 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 18.921 + 11.7714 + 9.8793 + 0.36 + 0.36 =
41.2916 cm2
Ar = (488*0.54 + 2*10*0.54*(1 - 1)) / 100 =
2.6329 cm2
AT = 41.2916 cm2 ≥ Ar = 2.6329 cm2
Empty Cold & New Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.21)} / 100 =
19.5814 cm2
A2 = 2*(59.4 - 0.21)*10*1 / 100 =
11.8374 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.5814 + 11.8374 + 9.8793 + 0.36 + 0.36 =
42.0181 cm2
Ar = (488*0.21 + 2*10*0.21*(1 - 1)) / 100 =
1.0214 cm2
AT = 42.0181 cm2 ≥ Ar = 1.0214 cm2
Empty Cold & New Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.59)} / 100 =
18.8206 cm2
A2 = 2*(59.4 - 0.59)*10*1 / 100 =
11.7613 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 18.8206 + 11.7613 + 9.8793 + 0.36 + 0.36 =
41.1812 cm2
Ar = (488*0.59 + 2*10*0.59*(1 - 1)) / 100 =
2.8778 cm2
AT = 41.1812 cm2 ≥ Ar = 2.8778 cm2
External Pressure Hot & Corroded Seismic Tensile
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 0.42)} / 100 =
19.1564 cm2
A2 = 2*(59.4 - 0.42)*10*1 / 100 =
11.7949 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 19.1564 + 11.7949 + 9.8793 + 0.36 + 0.36 =
41.5506 cm2
Ar = (488*0.42 + 2*10*0.42*(1 - 1)) / 100 =
2.0583 cm2
AT = 41.5506 cm2 ≥ Ar = 2.0583 cm2
External Pressure Hot & Corroded Seismic Compressive
fr1 = min[ 138 / 138 , 1 ] =
1
fr2 = min[ 138 / 138 , 1 ] =
1
A1 = {2*100*(1*10 - 1.37)} / 100 =
17.2683 cm2
A2 = 2*(59.4 - 1.37)*10*1 / 100 =
11.6061 cm2
A3 = 2*49.4*10*1 / 100 =
9.8793 cm2
A41 = 62*1 / 100 =
0.36 cm2
A43 = 62*1 / 100 =
0.36 cm2
AT = 17.2683 + 11.6061 + 9.8793 + 0.36 + 0.36 =
39.4736 cm2
Ar = (488*1.37 + 2*10*1.37*(1 - 1)) / 100 =
6.6654 cm2
AT = 39.4736 cm2 ≥ Ar = 6.6654 cm2
OPENING FOR NOZZLE N14 (PO 1)
ASME Section VIII Division 1, 2017 Edition Metric
Component
Skirt Opening
Description
OPENING FOR NOZZLE N14
Drawing Mark
PO 1
Sleeve Material
SA-106 B Smls Pipe (II-D Metric p. 14, ln. 10)
Location and Orientation
Attached to
Support Skirt #1
Orientation
radial
Offset, L
1,410 mm
Angle, θ
40°
Distance, r
1,105 mm
Through a
Category B Joint
No
Dimensions
Pipe NPS and
Schedule
NPS 8 Sch 80 (XS) DN 200
Inside Diameter
193.67 mm
Nominal Wall
Thickness
12.7 mm
Skirt Thickness
10 mm
Leg41
6 mm
Leg43
6 mm
External
Projection
Available, Lpr1
95 mm
Internal
Projection, Lpr2
89 mm
Corrosion Inner
0 mm
Outer
0 mm
Skirt Opening Reinforcement Summary
Required
Thickness
tr
(mm)
Wind
Operating Hot & Corroded
Wind
Operating Hot & New
Status
N/A
OK
36.7966 1.0894 33.7781
OK
0.36
37.2207 0.7119 52.2814
OK
Compressive 1.26
35.2196 2.4931 14.1267
OK
38.0205 0
N/A
OK
36.7629 1.1194 32.8406
OK
0.37
37.1949 0.7349 50.6154
OK
Compressive 1.31
35.1268 2.5757 13.6377
OK
37.9997 0.0185 2,051.6769
OK
37.4723 0.488
76.7931
OK
37.6363 0.342
110.0422
OK
Tensile
0
Tensile
Tensile
0
Compressive 0.57
Seismic
Wind
Empty Cold & Corroded
Tensile
Tensile
0.0094
Compressive 0.25
Seismic
Tensile
0.17
Compressive 0.5
Wind
Empty Cold & New
Tensile
0.0029
Compressive 0.26
Seismic
Tensile
0.19
Compressive 0.55
Field Test Corr
Wind
Tensile
0
Compressive 0.53
Field Test New
Wind
Tensile
0
Compressive 0.55
Wind
External Pressure Hot & Corroded
38.0205 0
36.9152 0.9838 37.5213
OK
38.014
OK
0.0058 6,608.0693
37.4344 0.5217 71.7567
OK
37.6078 0.3674 102.3635
OK
36.8116 1.076
34.2102
OK
N/A
OK
36.8424 1.0486 35.1351
OK
38.0205 0
OK
38.0205 0
N/A
36.8092 1.0782 34.141
OK
38.0205 0
N/A
OK
36.7966 1.0894 33.7781
OK
0.36
37.2207 0.7119 52.2814
OK
Compressive 1.26
35.2196 2.4931 14.1267
OK
Tensile
0
Compressive 0.55
Seismic
Ar
(cm2)
Ratio
Compressive 0.55
Seismic
AT
(cm2)
Tensile
Note: Skirt required thickness of zero on tensile side indicates load is compressive.
Skirt Opening Reinforcement Calculations
LR = min[ (Reff*t)0.5, 2*Rn]
(4.5.4)
LH1 = min[ 1.5*t , te] + (Rn*tn)0.5
(4.5.11)
LH2 = Lpr1
(4.5.12)
LH3 = 8*(t + te)
(4.5.13)
LH = min[ LH1, LH2, LH3] + t
(4.5.14)
LI1 = (Rn*tn)0.5
(4.5.16)
LI2 = Lpr2
(4.5.17)
LI3 = 8*(t + te)
(4.5.18)
LI = min[ LI1, LI2, LI3]
(4.5.19)
fr1 = min[ Sn / S , 1 ]
fr2 = min[ Sn / S , 1 ]
A1 = 2*LR*(E1*t - tr)
A2 = 2*(LH - tr)*tn*fr2
A3 = 2*LI*ti*fr2
A41 = L412*fr2
A43 = L432*fr2
AT = A1 + A2 + A3 + A41 + A43
Ar = d*tr + 2*tn*tr*(1 - fr1)
New
LR = min[ (1,000*10)0.5, 2*96.84] =
100 mm
LH1 = min[ 1.5*10 , 0] + (96.84*12.7)0.5 =
35.07 mm
LH2 = 95 =
95 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 35.07, 95, 80] + 10 =
45.07 mm
LI1 = (96.84*12.7)0.5 =
35.07 mm
LI2 = Lpr2 =
89 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 35.07, 89, 80] =
35.07 mm
Corroded
LR = min[ (1,000*10)0.5, 2*96.84] =
100 mm
LH1 = min[ 1.5*10 , 0] + (96.84*12.7)0.5 =
35.07 mm
LH2 = 95 =
95 mm
LH3 = 8*(10 + 0) =
80 mm
LH = min[ 35.07, 95, 80] + 10 =
45.07 mm
LI1 = (96.84*12.7)0.5 =
35.07 mm
LI2 = Lpr2 =
89 mm
LI3 = 8*(10 + 0) =
80 mm
LI = min[ 35.07, 89, 80] =
35.07 mm
Operating Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.55)} / 100 =
18.896 cm2
A2 = 2*(45.07 - 0.55)*12.7*0.8551 / 100 =
9.6685 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.896 + 9.6685 + 7.6165 + 0.3078 + 0.3078 =
36.7966 cm2
Ar = (193.67*0.55 + 2*12.7*0.55*(1 - 0.8551)) / 100 =
1.0894 cm2
AT = 36.7966 cm2 ≥ Ar = 1.0894 cm2
Operating Hot & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.57)} / 100 =
18.8655 cm2
A2 = 2*(45.07 - 0.57)*12.7*0.8551 / 100 =
9.6652 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.8655 + 9.6652 + 7.6165 + 0.3078 + 0.3078 =
36.7629 cm2
Ar = (193.67*0.57 + 2*12.7*0.57*(1 - 0.8551)) / 100 =
1.1194 cm2
AT = 36.7629 cm2 ≥ Ar = 1.1194 cm2
Empty Cold & Corroded Wind Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.0094)} / 100 =
19.9812 cm2
A2 = 2*(45.07 - 0.0094)*12.7*0.8551 / 100 =
9.7863 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.9812 + 9.7863 + 7.6165 + 0.3078 + 0.3078 =
37.9997 cm2
Ar = (193.67*0.0094 + 2*12.7*0.0094*(1 - 0.8551)) / 100 =
0.0185 cm2
AT = 37.9997 cm2 ≥ Ar = 0.0185 cm2
Empty Cold & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.25)} / 100 =
19.5055 cm2
A2 = 2*(45.07 - 0.25)*12.7*0.8551 / 100 =
9.7347 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.5055 + 9.7347 + 7.6165 + 0.3078 + 0.3078 =
37.4723 cm2
Ar = (193.67*0.25 + 2*12.7*0.25*(1 - 0.8551)) / 100 =
0.488 cm2
AT = 37.4723 cm2 ≥ Ar = 0.488 cm2
Empty Cold & New Wind Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.0029)} / 100 =
19.9942 cm2
A2 = 2*(45.07 - 0.0029)*12.7*0.8551 / 100 =
9.7877 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.9942 + 9.7877 + 7.6165 + 0.3078 + 0.3078 =
38.014 cm2
Ar = (193.67*0.0029 + 2*12.7*0.0029*(1 - 0.8551)) / 100 =
0.0058 cm2
AT = 38.014 cm2 ≥ Ar = 0.0058 cm2
Empty Cold & New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.26)} / 100 =
19.4713 cm2
A2 = 2*(45.07 - 0.26)*12.7*0.8551 / 100 =
9.731 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.4713 + 9.731 + 7.6165 + 0.3078 + 0.3078 =
37.4344 cm2
Ar = (193.67*0.26 + 2*12.7*0.26*(1 - 0.8551)) / 100 =
0.5217 cm2
AT = 37.4344 cm2 ≥ Ar = 0.5217 cm2
Field Test Corr Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.53)} / 100 =
18.9373 cm2
A2 = 2*(45.07 - 0.53)*12.7*0.8551 / 100 =
9.673 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.9373 + 9.673 + 7.6165 + 0.3078 + 0.3078 =
36.8424 cm2
Ar = (193.67*0.53 + 2*12.7*0.53*(1 - 0.8551)) / 100 =
1.0486 cm2
AT = 36.8424 cm2 ≥ Ar = 1.0486 cm2
Field Test New Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.55)} / 100 =
18.9074 cm2
A2 = 2*(45.07 - 0.55)*12.7*0.8551 / 100 =
9.6697 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.9074 + 9.6697 + 7.6165 + 0.3078 + 0.3078 =
36.8092 cm2
Ar = (193.67*0.55 + 2*12.7*0.55*(1 - 0.8551)) / 100 =
1.0782 cm2
AT = 36.8092 cm2 ≥ Ar = 1.0782 cm2
External Pressure Hot & Corroded Wind Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.55)} / 100 =
18.896 cm2
A2 = 2*(45.07 - 0.55)*12.7*0.8551 / 100 =
9.6685 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.896 + 9.6685 + 7.6165 + 0.3078 + 0.3078 =
36.7966 cm2
Ar = (193.67*0.55 + 2*12.7*0.55*(1 - 0.8551)) / 100 =
1.0894 cm2
AT = 36.7966 cm2 ≥ Ar = 1.0894 cm2
Operating Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.36)} / 100 =
19.2785 cm2
A2 = 2*(45.07 - 0.36)*12.7*0.8551 / 100 =
9.71 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.2785 + 9.71 + 7.6165 + 0.3078 + 0.3078 =
37.2207 cm2
Ar = (193.67*0.36 + 2*12.7*0.36*(1 - 0.8551)) / 100 =
0.7119 cm2
AT = 37.2207 cm2 ≥ Ar = 0.7119 cm2
Operating Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 1.26)} / 100 =
17.4734 cm2
A2 = 2*(45.07 - 1.26)*12.7*0.8551 / 100 =
9.514 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 17.4734 + 9.514 + 7.6165 + 0.3078 + 0.3078 =
35.2196 cm2
Ar = (193.67*1.26 + 2*12.7*1.26*(1 - 0.8551)) / 100 =
2.4931 cm2
AT = 35.2196 cm2 ≥ Ar = 2.4931 cm2
Operating Hot & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.37)} / 100 =
19.2553 cm2
A2 = 2*(45.07 - 0.37)*12.7*0.8551 / 100 =
9.7075 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.2553 + 9.7075 + 7.6165 + 0.3078 + 0.3078 =
37.1949 cm2
Ar = (193.67*0.37 + 2*12.7*0.37*(1 - 0.8551)) / 100 =
0.7349 cm2
AT = 37.1949 cm2 ≥ Ar = 0.7349 cm2
Operating Hot & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 1.31)} / 100 =
17.3897 cm2
A2 = 2*(45.07 - 1.31)*12.7*0.8551 / 100 =
9.5049 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 17.3897 + 9.5049 + 7.6165 + 0.3078 + 0.3078 =
35.1268 cm2
Ar = (193.67*1.31 + 2*12.7*1.31*(1 - 0.8551)) / 100 =
2.5757 cm2
AT = 35.1268 cm2 ≥ Ar = 2.5757 cm2
Empty Cold & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.17)} / 100 =
19.6534 cm2
A2 = 2*(45.07 - 0.17)*12.7*0.8551 / 100 =
9.7507 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.6534 + 9.7507 + 7.6165 + 0.3078 + 0.3078 =
37.6363 cm2
Ar = (193.67*0.17 + 2*12.7*0.17*(1 - 0.8551)) / 100 =
0.342 cm2
AT = 37.6363 cm2 ≥ Ar = 0.342 cm2
Empty Cold & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.5)} / 100 =
19.0029 cm2
A2 = 2*(45.07 - 0.5)*12.7*0.8551 / 100 =
9.6801 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.0029 + 9.6801 + 7.6165 + 0.3078 + 0.3078 =
36.9152 cm2
Ar = (193.67*0.5 + 2*12.7*0.5*(1 - 0.8551)) / 100 =
0.9838 cm2
AT = 36.9152 cm2 ≥ Ar = 0.9838 cm2
Empty Cold & New Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.19)} / 100 =
19.6277 cm2
A2 = 2*(45.07 - 0.19)*12.7*0.8551 / 100 =
9.7479 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.6277 + 9.7479 + 7.6165 + 0.3078 + 0.3078 =
37.6078 cm2
Ar = (193.67*0.19 + 2*12.7*0.19*(1 - 0.8551)) / 100 =
0.3674 cm2
AT = 37.6078 cm2 ≥ Ar = 0.3674 cm2
Empty Cold & New Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.55)} / 100 =
18.9095 cm2
A2 = 2*(45.07 - 0.55)*12.7*0.8551 / 100 =
9.67 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 18.9095 + 9.67 + 7.6165 + 0.3078 + 0.3078 =
36.8116 cm2
Ar = (193.67*0.55 + 2*12.7*0.55*(1 - 0.8551)) / 100 =
1.076 cm2
AT = 36.8116 cm2 ≥ Ar = 1.076 cm2
External Pressure Hot & Corroded Seismic Tensile
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 0.36)} / 100 =
19.2785 cm2
A2 = 2*(45.07 - 0.36)*12.7*0.8551 / 100 =
9.71 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 19.2785 + 9.71 + 7.6165 + 0.3078 + 0.3078 =
37.2207 cm2
Ar = (193.67*0.36 + 2*12.7*0.36*(1 - 0.8551)) / 100 =
0.7119 cm2
AT = 37.2207 cm2 ≥ Ar = 0.7119 cm2
External Pressure Hot & Corroded Seismic Compressive
fr1 = min[ 118 / 138 , 1 ] =
0.8551
fr2 = min[ 118 / 138 , 1 ] =
0.8551
A1 = {2*100*(1*10 - 1.26)} / 100 =
17.4734 cm2
A2 = 2*(45.07 - 1.26)*12.7*0.8551 / 100 =
9.514 cm2
A3 = 2*35.07*12.7*0.8551 / 100 =
7.6165 cm2
A41 = 62*0.8551 / 100 =
0.3078 cm2
A43 = 62*0.8551 / 100 =
0.3078 cm2
AT = 17.4734 + 9.514 + 7.6165 + 0.3078 + 0.3078 =
35.2196 cm2
Ar = (193.67*1.26 + 2*12.7*1.26*(1 - 0.8551)) / 100 =
2.4931 cm2
AT = 35.2196 cm2 ≥ Ar = 2.4931 cm2