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FileProj No.
Phase/CTR
Calculation title Page 1 of 3
The following two criteria are to be used to check the strength of line stops welded to shoes:
1. Weld strength.
2. Bending strength of welded attachment.
The following conditions / assumptions have been used in the calculations:
2. Line method used to calculate linear section moduli of welds.
4. Fillet weld leg length = h (mm). For all weld calculations the throat thickness is used as the weld size (i.e. h/20.5
), which is conservative.
5. For all weld calculations, the full penetration welds are approximated by the throat thickness of an equivalent fillet weld, applied at the outside edge.
6. Circumferential and longitudinal stresses are considered independently of each other.
7. Supports are designed for bending and compressive/tensile stresses only. Other stresses are not considered (eg shear and torsion).
List of attachments:
Refer to Calculation Index (Page 3 of 3)
Part A - Line Stop on Shoes Calculation Sheet
1. Tabulated Piping Class Schedules
2. Tabulated Piping Class Materials for Pipe
3. Tabulated Piping Class Materials for Supports
4. Tabulated Piping Wall Thicknesses
5. Tabulated Basic Allowable Stress Values
6. Mechanical Engineering Design (Shigley 1986) Chapter 9-4 - Bending in Welded Joints
Dependent Calculations
0
REV
BH
APPROVAL
VG
CHECKBY
RM07-Nov-08
DESCRIPTIONDATE
Issued for Use (IFU)
5. Shigley, J. E., Mechanical Engineering Design - 9-4 Bending in Welded Joints
3. ASME B31.3 - 2008 Process Piping.
6. Gere & Timoshenko, Mechanics of Materials - Appendix C and Appendix D
Calculation Cover Sheet
1.XXXXXXXXXXX Topsides Pipe Stress Analysis Philosophy
Calc No.
Calculation objective
Line Stop Welded to Shoe Calculation - Template
Project title
Client
Assumptions
The purpose of this calculation is to check the strength of line stops welded to shoes.
Calculation method
Notes To User
2. The cells with RED text on the calc sheets are required input. These can be entered manually or the existing "LOOKUP" functions can be used providing the
reference data is verified. Cells with black text are calculated values and should not be modified
1. Template is based on the relevant calculation sheets in XXXXXXXXXXXXXXXXX Standard pipe supports - Welded attachment design - Shoes, line stops & guides
References
2. XXXXXXXXXXXXXXX Piping Material Specification
4. Kellogg's Design of Piping Systems
2. Line stops welded to shoes are adequate at the location specified for the loads shown on the calculation sheets.
1. Stresses are within code allowable limits.
Conclusions
1. The this sheet should be removed prior to issuing
3. Take care not to break any links that retrieve data from following sheets.
4. The main calc sheets uses data pulled from the following sheets that is specific to project piping specifications. These sheets should be modified for a specific
project or deleted and then the data on the main calc sheets entered manually.
5. All assumptions must be verified
1. Hot allowable stress at ambient temperature. Line stops on shoes are assumed to be sufficiently removed from the line pipe so that they do not see any significant
temperature rise due to elevated line pipe temperatures.
3. Fillet weld size shall be 6mm UNO.
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File
Proj No.
Phase/CTR
Page 2 of 3
Any precedent or dependent calculations? If yes, confirm impact of changes, if any, have been updated.
1.
2.
Reference made to text, standard or code. Check version/edition with that required for project. Actualversion/edition of standard/code used is referenced on the calculation cover sheet.
Calculation method defined or described (including formulae if relevant).
Appropriate stamp for preliminary issues.
Calculation objectives (aims) stated.
Calculation sign-off required on cover page only. i.e. as per multi page specifications/reports. All subsequent revisions within
calculation shall be marked such that the particular area of revision can be clearly identified (e.g. use revision cloud etc
Tracking of calculations that are either dependent on, or precedent to, this calculation shall be managed via registration within the
calculation register.
Notes for Completion of Calculations
Abbreviations correct.
Changes clouded.
Assumptions stated.
Summary of results or conclusions if appropriate.
For software based calculations, reference to software verification if available.
If Category 3 and not previously verified, then complete full verification (using PDF-002). Retain copy of PDF-002
with calculation and with corporate standards/discipline focal point..
Input data correct.
Attachments included and referenced, as required.
Appropriate cross-references.
Checking records:
Revision history block updated.
Revision history box complete and signed.
Index.
Revisions:
Checked and annotated copy of calculation filed (use "Check Print" stamp).
Method clear and easy to follow.
Calculation arithmetically correct OR result validated as being reasonable (i.e. within expected limits) for Category
1 or 2 software (refer CIP-008), or software previously verified and reference to verification checked for Category 3
software).
Calculation tolerances stated if significant.
Corrections made as required and calculation dated and signed on cover sheet by checker.
Sketches included and clearly labelled, where required.
Calculation re-checked if required.
Calculation title shown.
Project title
Client
Line Stop Welded to Shoe Calculation - Template
Please check boxes for all applicable items checked or delete if not appropriate:
Source of input data stated (with revision number and date if relevant).
Units used as required by client.
Calculations:
Calculation Checklist
Project title shown.
Calculation number assigned and registered (usual format is Proj No-CAL-Discipline code-Seq No eg XXXX-CAL-E-
001, but format may be varied by Project Manager).
Calculation title
Calc No.
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Calculation title Line Stop Welded to Shoe Calculation - Template
31 PART A - WELDED LINE STOP ON SHOES LS-02
32 PART A - WELDED LINE STOP ON SHOES ON BRIDGE, EXPANSION BAY & FLARE BOOM LS-04
Client Woodside Energy Ltd.
Calculation Index
Calc No. 0
Project title North Rankin B Project
Sl. No. Description Support Type
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31 PART A - WELDED LINE STOP ON SHOES
LOCAL STRESS CALCULATION - WELD & ATTACHMENT STRENGTH
STRESS CALCULATION NO. LINE NO.
STRESS MODEL NO. NODE NO.
INPUT DATA
Bridge, Expansion Bay or Flare Boom Support
PARENT PIPE DN Nominal Pipe Diameter
Line stop type
E Liftoff assumed
B Line stop length
C Gussett plate widthT Web & gusset plate thickness
h Weld Size
W Vertical load
WL Axial stop load
WC Lateral guide load
ML Longitudinal moment:
MC Circumferential moment:
T Temperature
Support Material
SH Hot Allowable Stress of Stop Material
ATTACHMENT STRENGTH
ZL Longitudinal section modulus
ZC Circumferential section modulus
A Attachment cross-section area
SL Longitudinal bending stress
SC Circumferential bending stress
SA Axial (compressive) stress
Longitudinal
Circumferential
ALLOWABLE STRESS SA Allowable stress Each com
CALCULATION RESULT
Max WL Max axial line stop load (minimum of max load based on LONG or CIRCUM stresses)
MIN { [ SA/ (E / ZL+ 0.3 / A) ] , [ SA
WELD STRENGTH
ZL Longitudinal section modulus Full Pen. Weld Thickness T included (
ZC Circumferential section modulus Full Pen. Weld Thickness T included (
A Weld Area
SL Longitudinal bending stressSC Circumferential bending stress
SA Axial (compressive) stress
Longitudinal
Circumferential
ALLOWABLE STRESS SA Allowable stress Each com
CALCULATION RESULT
Max WL Max axial line stop load (minimum of max load based on LONG or CIRCUM stresses)
HOT ALLOWABLE STRESS OF
PARENT PIPE
APPLIED FORCES
LINE STOP DIMENSIONS
MAXIMUM HORIZONTAL
LOADS
MAXIMUM HORIZONTAL
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Fillet Weld Attachment Centre of Gravity
Full Penetration W eld W eld Centre of Gravity
Attachment Outline
SUPPLEMENTARY CALCULATIONS
ATTACHMENT MOMENT OF INERTIA Type A : Lug BT3/ 12
TB3/ 12
Type B : T-shape (B-T)T3/12+TC
3/12
T(B-T)3/12+T(B-T)(c1x-(B-T)/2)
2+CT
3/12+CT(B-c1x-T/2)
2
where c1x= (1/2(B-T)2
+C(B-T/2))/(C+B-T)Type C : U-shape BC
3/12-(B-T)(C-2T)
3/12
TB3/6+2BT(c1x-B/2)
2+(C-2T)T
3/12+T(C-2T)(B-T/2-c1x)
2
where c1x= (B2T+T(C-2T)(B-T/2))/(2BT+T(C-2T))
Type D : Triple Gusset BC3/12-(B-T)(C-2T)
3/12+(B-T)T
3/12
TB3/4+3TB(c1x-B/2)
2+(C-3T)T
3/12+T(C-3T)(B-c1x-T/2)
2
where c1x= (3B2T+T(C-3T)(2B-T))/(6BT+2T(C-3T))
ATTACHMENT AREAS Type A : Lug BT
Type B : T-shape CT + BT - T2
Type C : U-shape 2BT + T(C - 2T)
Type D : Triple Gusset 3BT+T(C-3T)
CENTROID TO OUTER FIBRE Type A : Lug B / 2
T / 2
Type B : T-shape cx=c1x
C / 2
Type C : U-shape cx=c1x
C / 2
Type D : Triple Gusset cx=c1x
C / 2
WELD UNIT MOMENT OF INERTIA Type A : LugT
3
/12+BT
2
/22c2x
3/3+2(B-c2x)
3/3+Tc2x
2
where c2x= B2/(2B+T)
Type B : T-shape [C3/12+C
2T/2+T
2(B-T)/2]+[C
3/12-T
3/12]
[2c2x3/3+2(B-c2x)
3/3+(C-T)(c2x-T)
2+T(B-c2x)
2]+[(C-T)(c2x-T)
2]
where c2x= (h[B2+T(C-T)+BT]+T[T(C-T)])/(h[2B+C]+T[C-T])
Type C : U-shape [C3/12+(B-T)(C-2T)
2/2+BC
2/2]+[(C-2T)
3/12]
[2c2x3/3+2(c2x-T)
3/3+4(B-c2x)
3/3+(C-2T)(c2x-T)
2+2T(B-c2x)
2]+[(C-2T)(c2x-T
where c2x= (h[2B2-T
2+T(C-2T)+2TB]+T[T(C-2T)])/(h[4B+C-2T]+T[C-2T])
Type D : Triple Gusset [C3/12+T
2(B-T)/2+(B-T)(C-2T)
2/2+BC
2/2]+[(C-2T)
3/12-T
3/12]
TYPE A :LUG
B
T
12
c2x
TYPE B :T-SHAPE
x
y
T
T
C
B
c1x
c2x
12
12
TYPE C :U-SHAPE
x
y
T
C
B
c2x
12
T
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LINE STOP DIM. - DRG NO. BA1200DX1045.0001
DN B (mm)Lg. C (mm) T (mm) Type h (mm)
25 100 0 10 A 6
40 100 0 10 A 6
50 100 0 10 A 6
80 85 75 10 B 6
100 85 75 10 B 6
150 85 75 10 B 6
200 110 100 10 B 6
250 110 100 10 B 6
300 160 150 10 B 6
350 160 150 10 B 6
400 160 150 10 B 6
450 160 150 10 B 6
500 160 150 10 B 6
600 160 150 10 B 6
750 210 180 10 C 6900 210 180 10 C 6
BRIDGE, EXPANSION BAY AND FLARE BOOM
LINE STOP DIM. - DRG NO. BA1200DX1081.0001
DN B (mm)Lg. C (mm) T (mm) Type h (mm)
25 100 0 10 A 6
40 100 0 10 A 6
50 100 0 10 A 6
80 85 75 10 B 6
100 85 75 10 B 6
150 85 75 10 B 6
200 160 130 10 C 6
250 160 130 10 C 6
300 210 180 10 C 6
350 210 180 10 C 6
400 210 180 10 C 6
450 210 180 10 C 6
500 210 180 10 C 6
600 210 180 10 C 6
750 316 260 16 D 10
900 316 260 16 D 10
BRIDGE, EXPANSION BAY
OR FLARE BOOM SUPPORT
No
Yes
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ATTACHMENT 01 - Tabulated Piping Class Schedules
Spec Rev CA 25 40 50 80 100 150 200 250 300 350 400 450 500 600 650 700 750 800 90011428N 0 1.5 80 80 40 40 40 40 20 20 20 20 20 20 20 20
11478N 0 1.5 80 80 40 40 40 40 20 20 20 20 20 20 20 20
11480N 0 1.5 80 80 80 80 80 XS XS 60 60 40 40 40 22mm 19mm
13459N 0 0 40S 40S 40S 40S 40S 40S 20 20 20 20 20 20 20 20
13466N 0 0 80S 80S 80S 80S 80S 40S 40S 40S 40S STD STD STD STD STD STD STD
13467N 0 0 40S 40S 40S 40S 40S 40S 20 20 20 20 20 20 20 20 STD STD
13470N 0 0 40S 40S 40S 40S 40S 40S 40S STD
33467N 0 0 40S 40S 40S 40S 40S 40S 20 20 20 20 20 20 20 20
61478N 0 1.5 80 80 80 80 80 80 80 80 80 80 80 80 80 80
63467N 0 0 40S 40S 40S 40S 40S 40S 40S 40S 40S 40 40 40 40 40 22mm 27mm
91480N 0 3 160 160 160 160 120 120 120 120 120 120 120 120 120 120
93459N 0 0 40S 40S 40S 40S 80S 80S 100 100 100 100 100 100 100 100
93467N 0 0 40S 40S 40S 40S 40S 40S 80S 80S 60 60 80 80 80 80 33mm 35mm 38mm
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ATTACHMENT 02 - Tabulated Piping Class Materials - Pipe Material
Spec Rev 25 40 50 80 100 150 200 250 300 350 400 450 500 600 650 700 750 800 900 No Material
11428N 0 1 1 1 1 1 1 1 1 1 1 1 2 2 2 1 A106 Gr. B
11478N 0 3 3 3 3 3 3 3 3 3 3 3 4 4 4 2 API 5L Gr B
11480N 0 3 3 3 3 3 3 3 3 3 4 4 4 4 4 3 A333 Gr. 6
13459N 0 5 5 5 5 5 5 6 6 6 6 6 6 6 6 4 A671 CC65
13466N 0 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 5 A312 TP316L
13467N 0 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 10 6 A358 GR 316L
13470N 0 9 9 9 9 10 10 10 10 7 A790 S32750
33467N 0 9 9 9 9 9 9 10 10 10 10 10 10 10 10 8 A928 S32750
61478N 0 3 3 3 3 3 3 3 3 3 3 3 4 4 4 9 A790 S31803
63467N 0 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10 A928 S31803
91480N 0 3 3 3 3 3 3 3 3 3 3 3 4 4 4
93459N 0 5 5 5 5 5 5 6 6 6 6 6 6 6 6
93467N 0 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10
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ATTACHMENT 03 - Tabulated Piping Class Materials - Support Material
Spec 25 40 50 80 100 150 200 250 300 350 400 450 500 600 650 700 750 800 900 No Material11428N 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 A516 GR 60
11478N 11 11 11 11 11 11 11 11 11 11 11 11 11 11 12 A240 TP316L
11480N 11 11 11 11 11 11 11 11 11 11 11 11 11 11 13 A240 S31803
13459N 12 12 12 12 12 12 12 12 12 12 12 12 12 12 14 A36
13466N 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13
13467N 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13
13470N 13 13 13 13 13 13 13
33467N 13 13 13 13 13 13 13 13 13 13 13 13 13 13
61478N 11 11 11 11 11 11 11 11 11 11 11 11 11 11
63467N 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13
91480N 11 11 11 11 11 11 11 11 11 11 11 11 11 11
93459N 12 12 12 12 12 12 12 12 12 12 12 12 12 12
93467N 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13
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ATTACHMENT 04 - Tabulated Piping Wall Thicknesses
(Dimensions of Seamless and Welded Steel Pipes as per ASME B36.10M-2004 & ASME B36.19M-1985)
Carbon, Alloy and Stainless SteelPIPE SIZE
Nom.pipe
size
Nom.pipe
sizeOD 5S 10S 10 20 30 40S STD 40 60 XS 80S 80 100 120 140 160 XXS 19
mm inch mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm m
15 1/2" 21.30 1.65 2.11 NA NA NA 2.77 2.77 2.77 NA 3.73 3.73 3.73 NA NA NA 4.78 7.47
20 3/4" 26.70 1.65 2.11 NA NA NA 2.87 2.87 2.87 NA 3.91 3.91 3.91 NA NA NA 5.56 7.82
25 1" 33.40 1.65 2.77 NA NA NA 3.38 3.38 3.38 NA 4.55 4.55 4.55 NA NA NA 6.35 9.09
32 1 1/4" 42.20 1.65 2.77 NA NA NA 3.56 3.56 3.56 NA 4.85 4.85 4.85 NA NA NA 6.35 9.70
40 1 1/2" 48.30 1.65 2.77 NA NA NA 3.68 3.68 3.68 NA 5.08 5.08 5.08 NA NA NA 7.14 10.15
50 2" 60.30 1.65 2.77 NA NA NA 3.91 3.91 3.91 NA 5.54 5.54 5.54 NA NA NA 8.74 11.07
65 2 1/2" 73.00 2.11 3.05 NA NA NA 5.16 5.16 5.16 NA 7.01 7.01 7.01 NA NA NA 9.53 14.02
80 3" 88.90 2.11 3.05 NA NA NA 5.49 5.49 5.49 NA 7.62 7.62 7.62 NA NA NA 11.13 15.24
90 3 1/2" 101.60 2.11 3.05 NA NA NA 5.74 5.74 5.74 NA 8.08 8.08 8.08 NA NA NA NA NA
100 4" 114.30 2.11 3.05 NA NA NA 6.02 6.02 6.02 NA 8.56 8.56 8.56 NA 11.13 NA 13.49 17.12
125 5" 141.30 2.77 3.40 NA NA NA 6.55 6.55 6.55 NA 9.53 9.53 9.53 NA 12.70 NA 15.88 19.05
150 6" 168.30 2.77 3.40 NA NA NA 7.11 7.11 7.11 NA 10.97 10.97 10.97 NA 14.27 NA 18.26 21.95
200 8" 219.10 2.77 3.76 NA 6.35 7.04 8.18 8.18 8.18 10.31 12.70 12.70 12.70 15.09 18.26 20.62 23.01 22.23
250 10" 273.10 3.40 4.19 NA 6.35 7.80 9.27 9.27 9.27 12.70 12.70 12.70 15.09 18.26 21.44 25.40 28.58 25.40
300 12" 323.90 3.96 4.57 NA 6.35 8.38 9.53 9.53 10.31 14.27 12.70 12.70 17.48 21.44 25.40 28.58 33.32 25.40
350 14" 355.60 3.96 4.78 6.35 7.92 9.53 9.53 9.53 11.13 15.09 12.70 12.70 19.05 23.83 27.79 31.75 35.71 NA
400 16" 406.40 4.19 4.78 6.35 7.92 9.53 9.53 9.53 12.70 16.66 12.70 12.70 21.44 26.19 30.96 36.53 40.49 NA
450 18" 457.00 4.19 4.78 6.35 7.92 11.13 9.53 9.53 14.27 19.05 12.70 12.70 23.83 29.36 34.93 39.67 45.24 NA
500 20" 508.00 4.78 5.54 6.35 9.53 12.70 9.53 9.53 15.09 20.62 12.70 12.70 26.19 32.54 38.10 44.45 50.01 NA
550 22" 559.00 4.78 5.54 6.35 9.53 12.70 NA 9.53 NA 22.23 12.70 NA 28.58 34.93 41.28 47.63 53.98 NA
600 24" 610.00 5.54 6.35 6.35 9.53 14.27 9.53 9.53 17.48 24.61 12.70 12.70 30.96 38.89 46.02 52.37 59.54 NA
650 26" 660.00 NA NA 7.92 12.70 NA NA 9.53 NA NA 12.70 NA NA NA NA NA NA NA
700 28" 711.00 NA NA 7.92 12.70 15.88 NA 9.53 NA NA 12.70 NA NA NA NA NA NA NA
750 30" 762.00 6.35 7.92 7.92 12.70 15.88 NA 9.53 NA NA 12.70 NA NA NA NA NA NA NA 19
800 32" 813.00 NA NA 7.92 12.70 15.88 NA 9.53 17.48 NA 12.70 NA NA NA NA NA NA NA
850 34" 864.00 NA NA 7.92 12.70 15.88 NA 9.53 17.48 NA 12.70 NA NA NA NA NA NA NA
900 36" 914.00 NA NA 7.92 12.70 15.88 NA 9.53 19.05 NA 12.70 NA NA NA NA NA NA NA 19
PIPE SCHEDULE
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ATTACHMENT 05 - Tabulated ASME B31.3 Table A-1 Basic Allowable Stress Values
-20 to 100 200 300 400 500 600 650 700 750 800oF
A106 Gr. B 20.0 20.0 20.0 20.0 18.9 17.3 17.0 16.5 13.0 10.8 ksiAPI 5L Gr B 20.0 20.0 20.0 20.0 18.9 17.3 17.0 16.5 13.0 10.8 ksi
A333 Gr. 6 20.0 20.0 20.0 20.0 18.9 17.3 17.0 16.5 13.0 10.8 ksi
A671 CC65 21.7 21.3 20.7 20.0 18.9 17.3 17.0 16.8 13.9 11.4 ksi
A312 TP316L 16.7 16.7 16.7 15.5 14.4 13.5 13.2 12.9 12.6 12.4 ksi
A790 S32750 38.7 35.0 33.1 31.9 31.4 31.2 ksi
A928 S32750 38.7 35.0 33.1 31.9 31.4 31.2 ksi
A790 S31803 30.0 30.0 28.9 27.9 27.2 26.9 ksi
A928 S31803 30.0 30.0 28.9 27.9 27.2 26.9 ksi
A358 GR 316L CL 1 16.7 16.7 16.7 15.5 14.4 13.5 13.2 12.9 12.6 12.4 ksi
A516 GR 60 20.0 19.5 18.9 18.3 17.3 15.8 15.5 15.4 12.9 10.8 ksi
A240 TP316L 16.7 16.7 16.7 15.5 14.4 13.5 13.2 12.9 12.6 12.4 ksi
A240 S31803 30.0 30.0 28.9 27.9 27.2 26.9 ksi
A36 17.8 16.9 16.9 16.9 16.9 16.9 16.9 16.9 ksi
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ATTACHMENT 07 - Mechanical Engineering Design (Shigley 1986)
Chapter 9-4 - Bending in Welded Joints - pages 349 to 352
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SI No's (refer Calculation Index)
Type
Part Part A Part A Part A Part A Part A Part A Part A Part A
Repad N N Y Y N N Y Y
Standard/High Load Standard Standard Standard Standard High Load High Load High Load High Load
Check
LOCAL STRESS
CALCULATION -
PIPE WALL
LOCAL STRESS
CALCULATION -
WELD &
ATTACHMENT
STRENGTH
LOCAL STRESS
CALCULATION -
PIPE WALL
LOCAL STRESS
CALCULATION -
WELD &
ATTACHMENT
STRENGTH
LOCAL STRESS
CALCULATION -
PIPE WALL
LOCAL STRESS
CALCULATION -
WELD &
ATTACHMENT
STRENGTH
LOCAL STRESS
CALCULATION -
PIPE WALL
LOCAL STRES
CALCULATION
WELD &
ATTACHMEN
STRENGTH
Spec
11428N 1 2 3 4 NA NA 5 611478N 1 2 3 4 NA NA 5 6
11480N 1 2 3 4 NA NA 5 6
13459N 11 12 13 14 NA NA NA NA
13466N 11 12 13 14 NA NA NA NA
13467N 11 12 13 14 NA NA NA NA
13470N 11 12 13 14 NA NA NA NA
33467N 11 12 13 14 NA NA NA NA
61478N 7 8 9 10 NA NA NA NA
63467N 15 16 17 18 NA NA NA NA
91480N 7 8 9 10 NA NA NA NA
93459N 15 16 17 18 NA NA NA NA
93467N 15 16 17 18 NA NA NA NA
Welded Shoes Welded Shoes
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