Page1 of 20
PROCEDURE OF WRC-107 CALCULATIONS FOR LIFTING LUGS (Horizontal vessels) F
Sketch Lifting Lugs
Step 1
Note values from output file of PVElite, as shown below.
Import data from PV elite
Step 2
Open PVElite Input file
Step 3
In PV Elite, Click this button --> (To start design of lifting lug)
Step 4
A new window "COADE As Shown Below:
CALC" will open, Go to Step 4
Filename:197701138.xls.ms_office
Page2 of 20
Step 5
Go to 'Analysis'→'Choose As shown below in sketch
Analysis type'→'WRC 107 / FEA'
Step 6
A new window will open. Click
Step 7
Give Description of item, select attachment type as "Rectangular" & select "solid" in
" +" new Item button
Hollow or Solid box
Filename:197701138.xls.ms_office
Page3 of 20
Step 8
Also give dimensions of rectangular attachment by clicking ">>" button window. If there is any pad attached also give its dimension.
Step 9
In Vessel provide data for Vessel (from data sheet or Pv elite calculations) on which lifting lug is attached.
Filename:197701138.xls.ms_office
Page4 of 20
Step 10 A
Provide values in input cells in table 1 & take value of weight from step 1
Input Cell Output Cells
Weight of Empty Vessel Impact Factor (generally 1.5) Design Lifting Load (Total)
Table 1
WxI
No. of Lifting Lugs Thickness of lifting lug Length of lifting lug from centre of hole to centre of weld line Thickness of pad Half of the circumferential angle between Lugs.
W I F n T d Tp ө
=
5000 N
=
18
=
90000 N
=
2
=
10 mm
=
100 mm
=
10 mm
=
30 deg.
Load per Lug
F/n
=
45000 N
Radial Load,
P
=FxI/n
=
45000 N
Circumferential Shear,
VC = F (tan ө) / n
=
25981 N
Longitudinal Shear,
VL = 0.05 (F/n)
=
2250 N
Longitudinal Moment,
ML = P x d + VL (Tp + T/2)
=
4533750 N-mm
Torsional Moment,
MT = VC x d
=
2598074 N-mm
Circumferential Moment,
MC = VC (Tp + T/2)
=
389711 N-mm
Filename:197701138.xls.ms_office
Page5 of 20
Step 10 B
In Loads
provide values from Step10A.
Step 11
Save your file at required location.
Step 12
Analyze
Step 13
Read at end of Report (as below)
Step 14
If the results are " Fail", go to Step Unless you get "Passed" message
8 & try with different geometrical dimensions.
Filename:197701138.xls.ms_office
Page 6 of 20
PROCEDURE OF WRC-107 CALCULATIONS FOR LIFTING LUGS (Horizontal vessels) Sketch
Step 1
Note values from output file of PVElite, as shown below.
Import data from PV elite
Step 2
Open PVElite Input file
Step 3
In PV Elite, Click this button --> (To start design of lifting lug)
Step 4
A new window "COADE As Shown Below:
CALC" will open, Go to Step 4
File name:197701138.xls.ms_office
Page 7 of 20
Step 5
Go to 'Analysis'→'Choose As shown below in sketch
Analysis type'→'WRC 107 / FEA'
Step 6
A new window will open. Click
Step 7
Give Description of item, select attachment type as "Rectangular" & select "solid" in
" +" new Item button
Hollow or Solid box
File name:197701138.xls.ms_office
Page 8 of 20
Step 8
Also give dimensions of rectangular attachment by clicking ">>" button window. If there is any pad attached also give its dimension.
Step 9
In Vessel provide data for Vessel (from data sheet or Pv elite calculations) on which lifting lug is attached.
File name:197701138.xls.ms_office
Page 9 of 20
Step 10 A
Provide values in input cells in table 1 & take value of weight from step 1
Input Cell Output Cells
Weight of Empty Vessel Impact Factor (generally 1.5) Design Lifting Load (Total)
Table 1
No. of Lifting Lugs Thickness of lifting lug Length of lifting lug from centre of hole to bottom. Thickness of pad Half of the circumferential angle between Lugs.
WxI
W I F n T d Tp ө
=
5000 N
=
1.5
=
7500 N
=
2
=
10 mm
=
55 mm
=
10 mm
=
30 deg.
File name:197701138.xls.ms_office
Page 10 of 20
Step 10 B
In Loads
provide values from Step10A.
Step 11
Save your file at required location.
Step 12
Analyze
Step 13
Read at end of Report (as below)
Step 14
If the results are " Fail", go to Step Unless you get "Passed" message
8 & try with different geometrical dimensions.
File name:197701138.xls.ms_office
Page[Page] of 20
PROCEDURE OF WRC-107 CALCULATIONS FOR LIFTING LUGS (Vertical vessel) Vertical lift VL VL= Longitudinal Shear VC= Circumferential Shear
Step 1
Note values from output file of PVElite, as shown below.
Import data from PV elite
Step 2
Open PVElite
Step 3
In PV Elite, Click this button --> (To start design of lifting lug)
Step 4
A new window "COADE CALC" will open, Go to Step 4 As Shown Below:
File name:197701138.xls.ms_office
Page[Page] of 20
Step 5
Go to 'Analysis'→'Choose Analysis type'→'WRC 107 / FEA' As shown below in sketch
Step 6
A new window will open. Click " +" new Item button
Step 7
Give Description of item, select attachment type as " Rectangular" & select "solid" in
Hollow or Solid box
File name:197701138.xls.ms_office
Page[Page] of 20
Step 8
Also give dimensions of rectangular attachment by clicking " >>" button in Rectangular attachment window. If there is any pad attached also give its dimension.
Step 9
In Vessel provide data for Vessel from Datasheet or output PVElite file.
File name:197701138.xls.ms_office
Page[Page] of 20
Step 10 A
Provide values in input cells in table 1 & take value of weight from step 1
Input Cell Output Cells
Weight of Empty Vessel Impact Factor (generally 1.5) Design Lifting Load (Total)
Table 1
WxI
No. of Lifting Lugs Thickness of lifting lug Length of lifting lug from centre of hole to center of weld line Thickness of pad Half of the circumferential angle between Lugs. Load per Lug
W I F n T d Tp ө
=
54000 N
= =
1.5 81000 N
=
2
=
10 mm
= =
55 mm 10 mm
=
30 deg.
F/n
=
40500 N
Radial Load,
P = 0.05 x F / n
=
2025 N
Longitudinal Shear,
VL = F / n
=
40500 N
Circumferential Shear ,
VC = 0.05 x F / n
=
2025 N
IN VERTICAL LIFTING
Step 10 B
MOMENT CALCUALTIONS (In Vertical Lifting) Longitudinal Moment, ML = Pd + VL (Tp + T/2)
=
751275 N-mm
Circumferential Moment,
MC = VC (Tp + T/2)
=
30375 N-mm
Torsional Moment,
MT = VC d
111375 N-mm
In Load provide values from Step 10A.
File name:197701138.xls.ms_office
Page[Page] of 20
Step 11
Save your file at required location.
Step 12
Analyze
Step 13
Read at end of Report (as below)
Step 14
If the results are Fail. Go to Step 8 & try again with different geometrical dimensions. Unless you get "Passed" message
File name:197701138.xls.ms_office
Page 16 of 20
PROCEDURE OF WRC-107 CALCULATIONS FOR LIFTING LUGS (Vertical vessel) Horizontal lift VC= Circumferential Shear
Step 1
Note values from output file of PVElite, as shown below.
Import data from PV elite
Step 2
Open PVElite
Step 3
In PV Elite, Click this button --> (To start design of lifting lug)
Step 4
A new window "COADE CALC" will open, Go to Step 4 As Shown Below:
File name:197701138.xls.ms_office
Page 17 of 20
Step 5
Go to 'Analysis'→'Choose Analysis type'→'WRC 107 / FEA' As shown below in sketch
Step 6
A new window will open. Click " +" new Item button
Step 7
Give Description of item, select attachment type as " Rectangular" & select "solid" in
Hollow or Solid box
File name:197701138.xls.ms_office
Page 18 of 20
Step 8
Also give dimensions of rectangular attachment by clicking " >>" button infront of Attachment type box window. If there is any pad attached also give its dimension.
Step 9
In Vessel provide data for Vessel from Datasheet or PVElite output file.
File name:197701138.xls.ms_office
Page 19 of 20
Step 10 A
Provide values in input cells in table 1 & take value of weight from step 1
Input Cell Output Cells
Weight of Empty Vessel Impact Factor (generally 1.5) Design Lifting Load (Total)
Table 1
WxI
No. of Lifting Lugs Thickness of lifting lug Length of lifting lug from centre of hole to center of weld line Thickness of pad Half of the circumferential angle between Lugs. Load per Lug
W I F n T d Tp ө
=
54000 N
= =
1.5 81000 N
=
2
=
10 mm
= =
55 mm 10 mm
=
30 deg.
F/n
=
40500 N
Radial Load,
P = 0.05 x F / n
=
2025 N
Longitudinal Shear,
VL = 0.05 x F / n
=
2025 N
Circumferential Shear,
VC = F / n
=
40500 N
IN HORIZONTAL LIFTING
Step 10 B
MOMENT CALCULATIONS (In Horizontal Lifting) Longitudinal Moment, ML = Pd + VL (Tp + T/2)
=
Circumferential Moment,
MC = VC (Tp + T/2)
=
607500 N-mm
Torsional Moment,
MT = VC d
=
2227500 N-mm
141750 N-mm
In Load provide values from Step 10A.
File name:197701138.xls.ms_office
Page 20 of 20
Step 11
Save your file at required location.
Step 12
Analyze
Step 13
Read at end of Report (as below)
Step 14
If Results are Fail go to Step 8 and try again with different geometric specifications. Unless you get "Passed" message
File name:197701138.xls.ms_office
