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ASME VIII Div.1 Addenda 99
24.3
Design rules for clamp connections: clamping faces parallel
nomeUnit
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../../Images/vessels/ASME_VIIID1/24_6bay.png
DiBCAspecMaterialHspecMaterialCspecMaterialBNg1dgidgoCAestgaskfacingbobbliqheightliqdensGBcXebDicDocCtlcg2CiDchGhDhTlegendaCwwCgThnradboltnb
1
designPress
Max.allowable working pressure: at top:
2
localPress
Max.allowable working pressure: at location:
3
designTemp
Design temperature:
MATERIALS
HUB
CLAMP
BOLTS
4
ProductB
ProductC
ProductH
Product form:
5
allowStressB
allowStressC
allowStressH
Unit for: Stress
Allowable stress: at design temperature:
6
allowStressaB
allowStressaC
allowStressaH
''
Allowable stress: at room temperature:
7
yy
mm
Gasket factors
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ASME VIII Div.1 Addenda 99
24.3
Design rules for clamp connections: clamping faces parallel
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(follows from previous page)
CALCULATION
8
Abolt
Effective bolt cross section area: per bolt:
9
AbL
Effective bolt cross section area: per clamp lug:
10
Ih
Moment of inertia: of hub shoulder:
 
OPERATING
GASK.SEATING
11
 
H
Unit for: Load
Hydrostatic end force: total:
12
 
HHD
''
Hydrostatic end force: on bore:
13
 
HHT
''
Hydrostatic end force: annular:
14
Hm
HHp
''
Gasket load:
15
Wm2
Wm1
''
Required bolt load:
16
Am2
Am1
Unit for: Area
Required bolt section:
17
resultBolt
Result for: Bolt stress:
18
W2
W1
Unit for: Load
Design bolt load:
19
 
HHG
''
Residual axial load: operating condition:
20
Mo2
Mo1
Unit for: Moment
Design moment on hub:
21
MH2
MH1
''
Reaction moment: at hub neck:
22
Q2
Q1
Unit for: Load
Reaction shear force: at hub neck:
23
S1a
S1
Unit for: Stress
Hub stress: longitudinal: calculated:
24
S1aall
S1all
''
Hub stress: longitudinal: allowable:
25
 
S2
''
Hub stress: hoop: calculated:
26
 
S2all
''
Hub stress: hoop: allowable:
27
S3a
S3
''
Hub stress: axial shear: calculated:
28
S4a
S4
''
Hub stress: radial shear: calculated:
29
S3aall
S3all
''
Hub stress: shear: allowable:
30
resultHub2
resultHub1
Result for: Hub stress:
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ASME VIII Div.1 Addenda 99
24.3
Design rules for clamp connections: clamping faces parallel
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(follows from previous page)
CALCULATION
31
Area2
Area1
Unit for: Area
Partial area: of clamp:
32
Area3
Ac
''
of clamp:
33
Ic
Moment of inertia: of clamp:
 
OPERATING
GASK.SEATING
34
S5a
S5
Unit for: Stress
Clamp stress: longitudinal: calculated:
35
S6a
S6
''
Clamp stress: tangential: calculated:
36
S5aall
S5all
''
Hub stress: direct: allowable:
37
S7a
S7
''
Shear stress: of clamp lip: calculated:
38
S7aall
S7all
''
Clamp stress: shear: allowable:
39
resultClamp2
resultClamp1
Result for: Clamp stress:
40
S9a
S9
''
Bearing stress: of clamp to hub: calculated:
41
S9aall
S9all
''
Bearing stress: of clamp to hub: allowable:
42
resultBea2
resultBea1
Result for: Bearing stress:
43
result
Final result:
NOTE: clamp lug stresses: to be checked in a separate calculation
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