Lift Analysis: R L T L
Lift Analysis: R L T L
Lift Analysis: R L T L
15000
15000
30000
2000
320000
1.5
480000
mm
mm
mm
mm
kg
kg
REACTION
AXIS
TAILING LUG
DEG
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
1.000
0.996
0.985
0.966
0.940
0.906
0.866
0.819
0.766
0.707
0.643
0.574
0.500
0.423
0.342
0.259
0.174
0.087
0.000
MAX.
RADIAL
(fr)
AXIAL
(fL)
TANGE
NTIAL
(PT)
AXIAL
(PL)
TOTAL
240000
240000
240000
240000
120000
120000
238608
237700
20796
238608
241392
120237
10519
120696
237212
233608
41191
237212
242788
119550
21080
121394
235788
227754
61026
235788
244212
117945
31603
122106
234314
220184
80140
234314
245686
115434
42015
122843
232764
210956
98370
232764
247236
112036
52243
123618
231105
200143
115552
231105
248895
107775
62224
124448
229296
187829
131519
229296
250704
102682
71899
125352
227286
174111
146096
227286
252714
96795
81221
126357
225000
159099
159099
225000
255000
90156
90156
127500
222335
142914
170319
222335
257665
82812
98691
128832
219136
125691
179506
219136
260864
74813
106844
130432
215156
107578
186331
215156
264844
66211
114681
132422
209980
88741
190306
209980
270020
57058
122361
135010
202846
69377
190613
202846
277154
47396
130220
138577
192184
49741
185635
192184
287816
37246
139004
143908
174155
30242
171509
174155
305845
26555
150599
152923
136209
11871
135690
136209
343791
14982
171242
171896
480000
240000
240000
240000
kg
240000
kg
190613
kg
480000
kg
120237
kg
240000
kg
180
50
5528
14
lr=(lg-tb)+0.55*(Dsk*tsk)^0.5
Lr
Area Bread
depth
Mark th
1
2
3
19
500
38
85
10
115
210
CENTROID =
Area
1.62E+03
5.00E+03
4.37E+03
283
500
Y
dist.from
base
42.5
90
152.5
1.10E+04
C1
C2
a*y
6.86E+04
4.50E+05
6.66E+05
1.19E+06
107.88
102.12
2.30E+07
213500
225543
C1=(Sa*y)/ h dist.from
Sa
centroid
107.88
65.38
17.88
44.62
h^2
a*h^2
Ig=
b*d^3/12
4275
320
1991
6.90E+06
1.60E+06
8.70E+06
9.72E+05
4.17E+04
4.82E+06
1.72E+07
5.83E+06
162
32
5528
14
lr=(lg-tb)+0.55*(Dsk*tsk)^0.5
Lr
Area
Breadth
Mark
1
2
3
4
5
19
19
500
19
28
depth
115
115
10
85
250
575
CENTROID =
Area
2185
2185
5000
1615
7000
17985
283
500
Y dist.from
base
57.5
57.5
120
167.5
250
C1
C2
159.68
215.32
42288468.8
a*y
1.256E+05
1.256E+05
6.000E+05
2.705E+05
1.750E+06
2.872E+06
103842357.0
650328
482263
C1=(Sa*y h dist.from
)/Sa
centroid
159.68
102.18
102.18
37.68
7.82
35.32
h^2
10440.10
10440.10
1419.54
61.20
1247.73
a*h^2
2.281E+07
2.281E+07
7.098E+06
9.884E+04
8.734E+06
6.155E+07
Ig=
b*d^3/12
2.408E+06
2.408E+06
4.167E+04
9.724E+05
3.646E+07
4.229E+07
BASE RING
Skirt Bracing
Rm
Dist from N.Axis from CL
MATERIAL :
Ys - YIELD STRESS
MATERIAL :
SA 285 GR C
Ys - YIELD STRESS
2109 kg/cm
Sba - ALLOW.BENDING STRESS = 0.66 x Ys
1391.94 kg/cm
F2 - MAXIMUM LOAD (in horiz. position) :
16198 kg
Z - SECTION MODULUS OF BASE RING+SKIRT
213500 mm3
Di - INSIDE DIAMETER OF BASERING
2830 mm
Rm - MEAN RADIUS OF SECTION
1625 mm
BM - MAX.BENDING MOMENT PRODUCED AROUND RING
F2 x Rm x 0.0229
(0.0229 = Internal moment Coefficient for Base Ring for 3 point lifting at Zero deg)
602768 kg-mm
BENDING STRESS IN BASE RING = BM / Z
282.33 kg/cm
SAFE
HENCE BASE RING IS SAFE WITH ADDITIONAL STIFFENING BEAM.
CHECK FOR SUFFICIENCY OF BRACING BEAM
STIFFNER BEAMS PROVIDED AS INDICATED ABOVE WITH THE TAILING LUG
MATERIAL : SA 36
TAILING BEAM SIZE SELECTED
H 200*200*12*12
YIELD (Ys):
2530
ALLOW.BENDING STRESS (Sba = 0.66 Ys) :
1669.8
SECTION MODULUS OF BEAM :
479221.76
SECTION MODULUS OF BEAM (Z) :
479221.76
kg/cm
kg/cm
mm3
mm3
kg
mm
kg/cm2
7337.69
200
306.23
safe
BASE RING
Skirt Bracing
Rm
Dist from N.Axis from
CL
MATERIAL :
Ys - YIELD STRESS
MATERIAL :
SA 285 GR C
Ys - YIELD STRESS
2109 kg/cm
Sba - ALLOW.BENDING STRESS = 0.66 x Ys
1391.94 kg/cm
F2 - MAXIMUM LOAD (in horiz. position) :
31290 kg
Z - SECTION MODULUS OF BASE RING+SKIRT
650328 mm3
Di - INSIDE DIAMETER OF BASERING
5630 mm
Rm - MEAN RADIUS OF SECTION
3025 mm
BM - MAX.BENDING MOMENT PRODUCED AROUND RING
F2 x Rm x 0.0795
(0.0795 = Internal moment Coefficient for Base Ring for 2 point lifting at Zero deg)
7524854 kg-mm
BENDING STRESS IN BASE RING = BM / Z
1157.09 kg/cm
SAFE
HENCE BASE RING IS SAFE WITH ADDITIONAL STIFFENING BEAM.
CHECK FOR SUFFICIENCY OF BRACING BEAM
STIFFNER BEAMS PROVIDED AS INDICATED ABOVE WITH THE TAILING LUG
MATERIAL :
SA 36
TAILING BEAM SIZE SELECTED
H 250*250*9*14
YIELD (Ys):
2530
ALLOW.BENDING STRESS (Sba = 0.66 Ys) :
1669.8
SECTION MODULUS OF BEAM :
846305
SECTION MODULUS OF BEAM (Z) :
846305
kg/cm
kg/cm
mm3
mm3
kg
mm
kg/cm2
15645.00
250
462.16
safe
MATERIAL :
Ys - YIELD STRESS
Sba - ALLOW.BENDING STRESS = 0.66 x Ys
F2 - MAXIMUM LOAD (in horiz. position) :
Z - SECTION MODULUS OF BASE RING+SKIRT
Di - INSIDE DIAMETER OF BASERING
Rm - MEAN RADIUS OF SECTION
BM - MAX.BENDING MOMENT PRODUCED AROUND RING
(0.2387 = Internal moment Coefficient for Base Ring for One point lifting at Zero deg)
BM
=
BENDING STRESS IN BASE RING = BM / Z
HENCE BASE RING IS UNSAFE WITHOUT ADDITIONAL STIFFENING BEAM
IS 2062 GR B
2249
1484.34
86274
766398
3640
1111.45
kg/cm
kg/cm
kg
mm3
mm
mm
F2 x Rm x 0.2387
22888761
2986.54
UNSAFE
kg-mm
kg/cm
320000
2
640000
15000
100
30000
14900
15000
2000
29900
kg
kg
mm
mm
mm
mm
mm
mm
mm
0.000
0.087
0.174
0.259
0.342
0.423
0.500
0.574
0.643
0.707
0.766
0.819
0.866
0.906
0.940
0.966
0.985
0.996
1.000
1.000
0.996
0.985
0.966
0.940
0.906
0.866
0.819
0.766
0.707
0.643
0.574
0.500
0.423
0.342
0.259
0.174
0.087
0.000
MAX.
LL (P)
LV (PT) LH (PL)
=Pcos =Psin
TL (T)
TV (fr)
TH (fL)
=Tcos =Tsin
318930
320798
322672
324583
326561
328641
330868
333295
335993
339060
342635
346927
352266
359208
368775
383069
407231
458044
640000
318930
319577
317770
313523
306867
297850
286540
273019
257385
239751
220241
198989
176133
151808
126128
99146
70715
39921
0
0
27959
56031
84008
111690
138890
165434
191170
215972
239751
262473
284186
305071
325553
346535
370016
401044
456301
640000
321070
319202
317328
315417
313439
311359
309132
306705
304007
300940
297365
293073
287734
280792
271225
256931
232769
181956
0
321070
317988
312507
304669
294537
282187
267716
251238
232883
212797
191143
168100
143867
118668
92764
66499
40420
15858
0
0
27820
55103
81636
107203
131586
154566
175919
195412
212797
227795
240072
249185
254484
254868
248176
229233
181263
0
640000
319577
640000
321070
321070
254868
w
L (dist. Of top of the vessel to mid of the span)
H (Height of the vessel)
Allowable bending stress in shell
Allowable tensile stress in shell
Do (vessel OD)
Di (vessel ID)
Z
A
320000
2
640000
7500
100
14750
7400
7250
2800
14650
42.67
7500
15000
1764
1406
5010
5000
9.83E+07
78618
(DEG)
SIN()
COS()
LL (P)
LV (PT)
=Pcos
0.000
1.000
323276
0.087
0.996
328485
10
0.174
0.985
15
0.259
20
kg
kg
mm
mm
mm
mm
mm
mm
mm
kg/mm
mm
mm
kg/cm
kg/cm
mm
mm
mm^3
mm^2
TH (fL)
=Tsin
Sb
Sac
Sat
Sc
St
Bend st
316724
11.884
0.000
0.000
11.884
11.884
11.639
310329
27150
12.226
0.345
0.364
12.571
12.590
11.985
306398
301743
53205
12.462
0.677
0.737
13.138
13.199
12.233
87664
301294
291027
77981
12.590
0.992
1.115
13.582
13.705
12.381
323138
117613
296124
278265
101280
12.610
1.288
1.496
13.899
14.106
12.428
349194
316477
147576
290806
263560
122900
12.522
1.563
1.877
14.085
14.399
12.372
0.866
354753
307225
177376
285247
247032
142624
12.324
1.814
2.256
14.138
14.580
12.214
0.574
0.819
360660
295435
206866
279340
228822
160223
12.018
2.038
2.631
14.056
14.649
11.953
40
0.643
0.766
367050
281177
235935
272950
209091
175449
11.603
2.232
3.001
13.835
14.604
11.591
45
0.707
0.707
374097
264527
264527
265903
188022
188022
11.082
2.392
3.365
13.474
14.447
11.127
50
0.766
0.643
382035
245567
292656
257965
165817
197613
10.454
2.514
3.722
12.968
14.177
10.562
55
0.819
0.574
391191
224378
320445
248809
142711
203813
9.720
2.592
4.076
12.312
13.796
9.895
60
0.866
0.500
402048
201024
348184
237952
118976
206072
8.878
2.621
4.429
11.499
13.307
9.126
65
0.906
0.423
415353
175536
376438
224647
94940
203599
7.923
2.590
4.788
10.513
12.711
8.247
70
0.940
0.342
432328
147865
406256
207672
71028
195148
6.845
2.482
5.167
9.327
12.012
7.246
75
0.966
0.259
455138
117798
439629
184862
47846
178563
5.620
2.271
5.592
7.891
11.212
6.093
80
0.985
0.174
488016
84743
480602
151984
26392
149675
4.196
1.904
6.113
6.100
10.309
4.716
85
0.996
0.087
540545
47112
538488
99455
8668
99077
2.447
1.260
6.849
3.707
9.297
2.917
90
1.000
0.000
640000
640000
0.000
0.000
8.141
0.000
8.141
0.000
12.610
2.621
8.141
14.138
14.649
12.428
LH (PL)
=Psin
TL (T)
TV (fr)
=Tcos
323276
316724
327235
28629
311515
333602
328534
57929
0.966
338706
327165
0.342
0.940
343876
25
0.423
0.906
30
0.500
35
MAX.
640000
328534
640000
=
=
316724
316724
1242.8 kg/cm
1464.9 kg/cm
206072
Safe
Unsafe
D
R
T
E
= (mm)
= (mm)
= (mm)
= (mm)
f
=(mm)
b+a+H = (mm)
H = (mm)
A = (mm)
B = (mm)
W = (mm)
Bearing pad Diameter (S) = (mm)
Bearing Pad THK (t) = (mm)
a = (mm)
b = (mm)
SA 516 GR 70
Sy =
2672
kg/cm
Sa =
1406
Sa
1406
kg/cm
0.8 Sy
2137.6
kg/cm
0.4 Sy
1068.8
kg/cm
0.66 Sy
1763.52
kg/cm
9280
56.95
24600.00
21.48
12604.51
41.93
45623
0.55*Sa=
mm
kg/cm
mm
kg/cm
mm
kg/cm
7550
1.4
10570
2
5285
572
98
165
40
145
427
455
305
405
735
635
205
40
50
75
SAFE
SAFE
SAFE
Kg
647
29518081
2688167
1098.07
mm
kg-mm
mm3
kg/cm
773.30
kg/cm
74.72
mm
SAFE
94793495.36
mm3
23.34
Kg/mm
102.77
Kg/mm
136.12
Kg/mm
185.56
Kg/mm
34
24.04
771.82
mm
mm
kg/cm
849.5
38756739
246924000.00
28
mm
kg-mm
mm3
mm
20.01
Kg/mm
31.78
Kg/mm
63.57
Kg/mm
82.00
Kg/mm
20
14.14
579.81
mm
mm
kg/cm
SAFE
SAFE
LOCAL LOADS
Vessel is horizontal position :
Vessel is vertical position :
MT = [ H+F+E-(h2/2) ]xP
FC = P
FL = PL
kg / kg-mm
N / N-m
39897314 391261
45623
447412
7550
74041
CASE A
MAX BENDING
CASE B
MAX TENSION
WITH IMPACT
AXIAL LOAD / TAILING LUG
Kg
RADIAL LOAD / TAILING LUG
Kg
(Refer calculated maximum reaction values in lifting analysis)
TAILING LUG CALCULATION:
MATERIAL:
68192
84182
IS 2062 GR B
YEILD
STRES
S (Sy)
2249
TENSILE
1049
Sa =
1049
kg/cm
BENDIN
SHEAR
(0.4 G (0.66 * WELD SHEAR
* Sy)
Sy)
(0.55*Sa)
899.6
1484.34
576.95
D
B
C
TAILING LUG DIMENSIONS: (mm)
(MIN.) H - DEPTH
M - MOMENT ARM
D - PIN HOLE DIA
T - THK.
R - RADIUS OF TAILING LUG
D' - DIAMETER OF BEARING PAD
T' - THK OF BEARING PAD
284
92
75
32
142
150
16
284
32
18176
463.15
136.96
safe
THK
( T + 2 * T' )
AREA
( 2 x w' x (T + 2 * T' )
STRESS:
mm
mm
kg/cm
64
17530.74
480.20
75
64
4800
1420.67
1799.2
mm3
kg-mm
kg/cm
kg/cm
kg/cm
safe
safe
284
64
92
18176
860330.6667
6273664
729.22
463.15
1192.36
safe
H1
Db
Ds
= 2 x L1
f
w
A
f / SQRT(2)
wxL
WD
Ssa
= 0.4 x Sy
Ar
WD/Ssa
284
3630
3250
mm
mm
mm
474
948
mm
mm
14
9.90
9384.7212
mm
mm
mm
84182
Kg
899.6
Kg/cm
9357.71454
mm
safe
Tailing Beam
if req
1
1.4
LOADS
CASE A
CASE B
MAX BENDING
MAX TENSION
WITHOUT
WITH
WITHOUT
WITH
IMPACT
IMPACT
IMPACT
IMPACT
AXIAL LOAD / TAILING LUG
Kg
66755
93457
0
0
RADIAL LOAD / TAILING LUG
Kg
86274
120783.6
86274
120783.6
(Refer calculated maximum reaction values in lifting analysis)
TAILING LUG CALCULATION:
MATERIAL:
IS 2062 GR B
YEILD
STRES
S (Sy)
2249
TENSILE
(0.6 * Sy)
1349.4
Sa =
1049
kg/cm
BENDIN
SHEAR
(0.4 G (0.66 * WELD SHEAR
* Sy)
Sy)
(0.55*Sa)
899.6
1484.34
576.95
D
B
327
32
10464
1154.28
safe
159.14
64
20370.11
592.95
75
64
4800
2516.33
1686.75
mm3
kg-mm
kg/cm
kg/cm
kg/cm
safe
unsafe
327
32
95
10464
570288
8878415
1556.83
1154.28
2711.11
unsafe
H1
Db
Ds
= 2 x L1
f
w
A
f / SQRT(2)
wxL
WD
Ssa
327
4174
3924
mm
mm
mm
452
904
mm
mm
16
11.31
10227.59248
mm
mm
mm
120783.6
= 0.4 x Sy
899.6
13426.36727
Kg
Kg/cm
mm
unsafe
Tailing Beam
if req
Sy =
Sa
0.8 Sy
0.4 Sy
0.66 Sy
Sa
2800
188.75
1200.00
440.42
3815.76
138.50
79625
0.55*Sa=
7550
1.4
10570
2
5285
60
100
20
200
159.5
200
130
0
0
SAFE
SAFE
SAFE
Kg
200
15925000
133333
11943.75
mm
kg-mm
mm3
kg/cm
773.30
kg/cm
36.74
mm
4110442.03
mm3
110.59
Kg/mm
361.32
Kg/mm
503.66
Kg/mm
UNSAFE
f3 = M*h2/Jw
iv) Combined Load (fc) =
fc = sqrt ((f1+f2)^2+f3^2)
Fillet Size
Throat unit area (w)
Maximum Shear Stress = fc / w
Hence Provided Leg to Pad/ Shell fillet size is safe
CHECKING PAD WELDS
Maximum Moment Arm (L1=H+F+E) =
Bending Moment (M1=P*L1) =
Polar Moment of Inertia (Jw=(A+B)^3/6) =
Lifting Lug pad thickness =
Finding Shear Loads on Weld
i) Transverse Shear due to P (f1) =
f1 = (P / (2*A + 2* B))
ii) Transverse Shear due to M (f2) =
f2 = 0.5*M1*B / Jw
iii) Longitudinal Shear due to M (f3) =
f3 = M1*B/Jw
iv) Combined Load (fc) =
fc = sqrt ((f1+f2)^2+f3^2)
Fillet Size
Throat unit area (w)
Maximum Shear Stress = fc / w
Hence Provided Leg to Pad/ Shell fillet size is safe
LOCAL LOADS
Vessel is horizontal position :
Vessel is vertical position :
690.19
Kg/mm
35
24.75
2788.80
mm
mm
kg/cm
559.5
44550188
0.00
22
mm
kg-mm
mm3
mm
#DIV/0!
Kg/mm
#DIV/0!
Kg/mm
#DIV/0!
Kg/mm
#DIV/0!
Kg/mm
22
15.56
#DIV/0!
mm
mm
kg/cm
MT = [ H+F+E-(h2/2) ]xP
FC = P
FL = PL
UNSAFE
#DIV/0!
kg / kg-mm
N / N-m
39374563 386135
79625
780859
7550
74041
LOADS
Axial Load
Kg
Tangential Load
Kg
(Refer calculated maximum reaction values in lifting analysis)
Case C
Axis Horizontal
Without
Without
Impact
Impact
0
0
20000
40000
Sa
MATERIAL:
SA 516 Gr.70
Yield
Tensile
Stress
(0.6 * Sy)
(Sy)
2672
1603.2
Case D
Axis Vertical
Without
Without
Impact
Impact
21000
42000
0
0
1104
Shear
Bending
(0.4 * Sy) (0.66 * Sy)
1068.8
1763.52
288.89
17.48
323.85
16824.32
1223031.32
500
21000000
1717.05
safe
249.64
safe
N
N
N-m
N-m
N
N-m
411882
205941
Kg/cm
Weld
Shear
(0.55*Sa)
607.2