Appendixs Piping System Stress Analysis Examples

8/10/2019 Appendixs Piping System Stress Analysis Examples

1/17

ASME B31.3-2010

38

Licensee=YPF/5915794100

Not for Resale, 07/05/2011 13:38:11 !"

#o$%ri&'t ()* +nternationalProi-e- .% +) n-er license it' ()*

No re$ro-ction or netorin& $eritte- it'ot license fro +)

Fig. S301.1 Simple Code CompModel

APPENDIX S PIPING SYSTEMSTRESS ANALYSIS EXAMPLES

5300 INTRODUCTION

The example in this Appendix is intended to

illustrate the application of the rules and denitions

in Chapter II !art " Flexi#ilit$ and Support% and the

stress limits of para. 30&.3.". The loadings and

conditions necessar$ to compl$ 'ith the intent of

the Code are presented.

(10) S300.1 Defn!"n# $n% N"&en'$!*e

global axes:These are Cartesian ( ) and * axes.

In this Appendix +erticall$ up'ard is ta,en to #e

the -) direction 'ith gra+it$ acting in the )

direction.Pj:piping internal pressure% see para. 301.&% 'hen

more than one condition exists for the piping

s$stem each is su#scripted /e.g. !1 !& ...

Tj:pipe maximum or minimum metal temperature%

see paras. 301.3 and 31.3.1/a% 'hen more than

one condition exists for the piping s$stem each is

su#scripted

/e.g+ TuT&2

Y-4 a 5single acting support5 that pro+ides support

in onl$ the +erticall$ up'ard direction and is

considered to #e 5acti+e5 'hen the pipe exerts a

do'n'ard force on the support. The pipe is free to

mo+e up'ard i.e. the pipe 5lifts o65 the support%the support in the 5lifto65 situation is considered to

#e 5remo+ed5 from pro+iding support i.e. inacti+e

during the load condition considered.

5301 EXAMPLE 1+ CODECOMPLIANT PIPINGSYSTEM

S301.1 E,$&e De#'*!"n

This example is intended to illustrate the design

of an ade7uatel$ supported and su8cientl$ 9exi#le

piping s$stem. The piping s$stem in Fig. S301.1 is

fa#ricated from ASTM A 10: ;rade < seamless pipe

/i.e. E = 1.00% the pipe is => ?00 />!S 1: 'ith a

nominal 'all thic,ness of ."3 mm /0.3@" in. 1&@

mm /" in. thic,ness of calcium silicate insulation

and 1." mm /0.0:3 in. corrosion allo'ance% the

9uid has a specic gra+it$ of 1.0. The e7ui+alent

num#er of c$cles expected for the piping s$stem is

fe'er than @ 000 i.e. f =1.00 in accordance 'ith

para. 30&.3."/dB.

The piping

s$stem is in

normal 9uid ser+ice. The

installation temperature

is &1C /@0F. The

reference modulus of

elasticit$ used for the

piping anal$sis is &03.?

;!a /&." Msi from

Appendix C Ta#le C: in

T$e S301.1

Te&e*$!*e/P*e##*e C"&n$!"n#

accordance 'ith paras. 31.3.& and 31.?.? and

!oissonDs ratio is 0.3 in accordance 'ith para. 31.3.3.

The piping internal pressure maximum and minimum

metal temperatures expected during normal operation

and the design conditions are listed in Ta#le S301.1. The

design conditions are set su8cientl$ in excess of the

operating conditions so as to pro+ide additional margin

on the allo'a#le stress for pressure design as re7uired

#$ the o'ner.

S301.2 De#n C"n%!"n#

The design conditions esta#lish the pressure rating

9ange ratings component ratings and minimumre7uired pipe 'all thic,ness in accordance 'ith para.

301.&.1. For example ASME


2/17

ASME B31.3-2010


Not for Resale, 07/05/2011 13:38:11 !"

o$%ri&'t ()* +nternationalroi-e- .% +) n-er license it' ()*

o re$ro-ction or netorin& $eritte- it'ot license fro +)

design conditions #$ inserting e7. /3a into e7. /&%

terms are dened in para. 30?.1.1 and Appendix H4

E =1.0

P =design pressure 3

@" ,!a /""0 psi

S =allo'a#le stress from Appendix A Ta#le A1

1&" M!a /1.1 ,si at design temperature &C

/""0F

Y =0.? from Ta#le 30?.1.1

Insert e7. /3a into e7. /&4

!=tm= t- C &/SE - !) - C

/3@" ,!a/?0:.? mm . " &/1&" M!a/1.00 - /3@" ,!a/0.?B - 1" mm

:.10 mm - 1." mm @.: mm /0.303 in.

In accordance 'ith para. 30?.1.&/a tmust #e less

than =2: for e7. /3a to #e appropriate 'ithout

considering additional factors to compute the

pressure design thic,ness t /i.e. t < D/6, or @.:mm J ?0:.? mm2:. Since @.: mm /0.303 in. J

:@.@ mm /&.:@ in. e7. /3a is applica#le 'ithout

special consideration of factors listed in para.

30?.1.&/#.

>o' select a pipe schedule of ade7uate thic,ness.

=etermine the specied minimum pipe 'all

thic,ness T from nominal pipe 'all thic,ness T

considering a mill tolerance of 1&."K.

Select => ?00 />!S 1: Schedule 302ST= nominal

'all thic,ness from ASME tm/i.e. .3? mm L @.: mm the selectionof the nominal pipe 'all thic,ness T for Schedule

302ST= pipe is accepta#le. The long radius el#o's

specied for this piping s$stem are in accordance

'ith ASME


3/17

T$e S301.3.2 Ee&en! C"nne'!4!6 Te6 $n% Len!#

ASME B31.3-2010


Not for Resale, 07/05/2011 13:38:11 !"

#o$%ri&'t ()* +nternationalProi-e- .% +) n-er license it' ()*No re$ro-ction or netorin& $eritte- it'ot license fro +)

&"


4/17

;E>ERAO >GTE4 This piping s$stem is planar i.e. D"=0 m /ft for each piping element.

>GTE4

/1 The specied element lengths are measured to and2or from each el#o's tangent

intersection point.

T$e S301.5.1 Oe*$!n L"$% C$#e Re#!#+ In!e*n$ L"$%#$n% De7e'!"n#

>GTE4

/1 Ooads and de9ections are a+eraged from commercial programs 'ith a +ariance

'ithin units con+ersion tolerance.

T$e S301.5.2 Oe*$!n L"$% C$#e Re#!#+ Re$'!"n L"$%#"n S"*!# $n% An'"*#

>GTE4

/1 Ooads and de9ections are a+eraged from commercial programs 'ith a +ariance

'ithin units con+ersion tolerance.

From To D#, m /ft DY, m /ft Element T$pe

10 1" :.10 /&0 10 anchor 1" #isectionnode

1" &0 :.10 /&0 &0 ) support

&0 30 3.0" /10 T reeno e e o' >ote1 B

30 ?0 :.10 /&0 Threenode el#o' >ote/1B

?0 ?" 3.0" /10 Informational node

?" "0 :.10 /&0 "0 anchor

ode

>um#erAxial Force >/l# /Signed

>ote /1B

Moment >m /ftl#/Qnsigned >ote /1B

oriPontal=e9ection mm

/in. >ote /1B

ertical=e9ection

mm /in. >ote/1B

10 -&: "00 /-":0 &1 "&0 /1"@0 0.00 0.00

1" &: "00 /":0 10 @10 /@00 1.3 /0.@& 1.3 /0.0"

&0 &: "00 /":0 ?@ ":0 /3"00 3:.@ /1.?? 0.00

30 near &: "00 /":0 "@ "30 /?&??0 ??.0 /1.@3 3.@ /0.1?30 mid ?: 300 /10?10 : :0 /"1"30 ??.@ /1.@: &.3 /0.0

30 far 3@ 00 /"00 :" 3&0 /?10 ?1.? /1.:3 0.? /0.0&

?0 near &" &0 /"30 :3 30 /?@1:0 &3.0 /0.1 1".1 /0."

?0 mid 3: &"0 /1"0 @0 :0 /"&&@0 &:.? /1.0? 1@. /0.@0

?0 far &: "00 /":0 :" 10 /?00 &".@ /1.01 1.& /0.@"?" &: "00 /":0 1? 00 /100 1.3 /0.@& 13." /0."3

"0 &: "00 /":0 ?@ ?0 /3"030 0.00 0.00

;lo#al Axis Forces and Moments>ode $#,

> /l# /Signed >ote /1B

> /l# /Signed >ote /1B %",

>m /ftl#/Qnsigned >ote/1B

10 anchor &: "00 /":0 1& @10 /&:0 &1 "&0 /1"@0

&0 support :3 0"0 /1?10

"0 anchor -&: "00 /-":0 -& 10 /-:30 ?@ ?0 /3"030


5/17

&:


6/17

&@

T$e S301.8 S#!$ne% 9"*'e# $n% S!*e##e# :A";$e6 Sh=130 MP$ (1

>GTES4

/1 Ooads de9ections and stresses are a+eraged from commercial programs 'ith a

+ariance 'ithin units con+ersion tolerance.

/& Axial forces ha+e their sign retained and do not include the signed axial pressure

force 'hich is also included in the sustained stress S!&

(10) S301.8 Te S#!$ne% L"$% C$#e

Sustained stresses due to the axial force internal

pressure and intensied #ending moment in this

example are com#ined to determine the sustained

longitudinal stress SO. The sustained load case

excludes thermal e6ects and includes the e6ects of

internal pressure P1 3?"0 ,!a /"00 psiB pipe

'eight insulation 'eight and 9uid 'eight on the

piping s$stem.

>ominal section properties are used to generate

the sti6ness matrix and sustained loads for the

computer model in accordance 'ith para. 31.3.".

The nominal thic,ness less allo'ances is used to

calculate the section properties for the sustained

stress SO in accordance 'ith para. 30&.3."/c.

A summar$ of the sustained load case internalreaction forces moments and sustained stresses

S!, is pro+ided in Ta#le S301.:. Since this example

model lies in onl$ one plane onl$ the sustained

#ending stress due to the inplane #ending moment

is not Pero. The inplane #ending moment is

intensied at each el#o' #$ the appropriate index

for an un9anged el#o'. >ote that sustained stresses

for the nodes listed in Ta#le S301.: do not exceed

the 130 M!a /100 psi sustained allo'a#le stress

S',for A 10: ;rade < piping at the maximum metal

temperature T1 &:0C /"00F from Appendix A

Ta#le A1. ominal section properties are used to generat

the sti6ness matrix and displacement stress in the pipin

in accordance 'ith para. 31.3.". Since this examp

model lies in onl$ one plane onl$ the inplane #endin

moment is not Pero. The inplane moment is intensied a

each el#o' #$ the appropriate Appendix = stres

intensication factor U for an un9anged el#o'.

For simplicit$ the allo'a#le displacement stress rang

S, is calculated in accordance 'ith e7. /1a. Though e7

/1a is used in this example it is also accepta#le t

calculate SAin accordance 'ith e7. /1# 'hich permits S

to exceed the e7. /1a +alue for each piping elemen#ased on the magnitude of each elementDs sustaine

stress SO.

The follo'ing terms are as dened in para. 30&.3."/d

and Appendix H4

f =1.00 for J @ 000 e7ui+alent c$cles from Fig.

30&.3." or e7. /1c

SA f/1.&"Sc- 0.&"Sh

/1.00/1.&"/13 M!a - /0.&"/130 M!aB

&0" M!a /&@&" psi

Sc allo'a#le stress from Appendix A Ta#le A1 13

M!a /&0.0 ,si at T&S' allo'a#le stress from Append

A Ta#le A1 130 M!a /1. ,si at T1T1 maximum

metal temperature =&:0C /"00F

T& minimum metal temperature

1C /30F

>ote that each piping elementDs displacement stres

range #ased on minimum to maximum metal tempera

ture for the thermal c$cles under anal$sis SE does no

exceed the e7. /1a allo'a#le SA. ode Axial

Force> /l# /Signed >ote /1B

m /ft

l# /Qnsigned >ote /1B

Sustained

Stress

Su,!a /psi

>ote /&B

10 anchor -3 &@0 /-@3" 1@ &:0 /1&@30 " 100 /":0

&0 support 3 &@0 /@3" ": 130 /?1?00 &00 /1?3@0

30 far 1 0 /??@0 1: 3&0 /1&0?0 @& @00 /l0"?0?0 far -3 &@0 /-@3" & 3?0 /1@30 ?: 0"0 /::0

"0 anchor -3 &@0 /-@3" 3@ :0 /&@30 0 3"0 /11:"0


7/17

ASME B31.3-2010

42


Not for Resale, 07/05/2011 13:38:11 !"



L

;lo#al Axis Forces and Moments

$#, $Y, %", SE

> /l# > /l# >m /ftl# From E7. /1@/Qnsigned /Qnsigned /Qnsigned ,!a /psi

>ode >ote /1B >ote /1B >ote /1B >ote /1B

10 anchor &" 0@0 /":?0 1 130 /&:0 ? :00 /330 ? 000 /"0

&0 support &" 0@0 /":?0 1 130 /&:0 &"0 /:&0 0?0 /l1@0

30 mid &" 0@0 /":?0 :0 &"0 /????0 13@ 000 /1@0?0 mid &" 0@0 /":?0 1 330 @: @?0 /"::00 1@? "00 /&"300

"0 anchor &" 0@0 /":?0?3"0

& 110 /:@?0 @ 00 /11:00

>GTE4

/1 Ooads de9ections and stresses are a+eraged from commercial programs 'ith a +ariance 'ithin

units con+ersion tolerance.

Ta#le S301.@ =isplacement Stress Range SV &0" M!a /&@&"psiB

Considering #oth the sustained and displacement stress

range load cases the piping s$stem is compliant 'ith the

re7uirements of the Code% redesign of the piping s$stem

is not re7uired unless the sustained or operating reaction

loads at either anchor data point 10 or "0 exceed the

allo'a#le loads for the attached e7uipment noPPle or the

support structure at node &0 is o+erloaded. The noPPle

load and support structure anal$ses are #e$ond the scopeof this Appendix and are not addressed.

S302 EXAMPLE 2+ ANTICIPATEDSUSTAINED

CONDITIONS CONSIDERING PIPE LI9T-O99

5302.1 E,$&e De#'*!"n

This example is intended to illustrate the anal$sis of a

piping s$stem in 'hich a portion of the piping lifts o6 at

least one )- support in at least one operating condition.

The emphasis of this example is to descri#e Dhe e6ect this

remo+al of support has on the determination of

anticipated sustained conditions. The same principlesutiliPed for this example 'ould also appl$ for guides and

stops /that are single directional or gapt$pe that are not

engaged during an$ anticipated operating condition.

The examples in this Appendix are intended for illus

tration purposes onl$ and are not intended to portra$ the

same as either ade7uate or e+en accepta#le piping

geometries and2or support scenarios. The piping s$stem

in Fig. S30&.1 is the same in material and dimensional

properties as in Example 1% see para. S301.1. >ote that

#oth the design and operating conditions are 'ell #elo'

the creep regime% therefore the piping s$stem 'ill not

de+elop an$ permanent creeprelated displacements

relaxation or sag.

5302.2 De#n C"n%!"n#

The design conditions are similar to those in the Exam

ple 1 model% see para. S301.& and Ta#le S30&.1. >ote that

the minimum thic,ness remains unchanged from

9. S302.1 L@!-O M"%e

T$e S302.1 Te&e*$!*e/P*e##*e

C"&n$!"n#

Example 1 e+en though the design conditions ha+

increased slightl$. The h$drotest pressure does increas

from : 03 ,!a /@" psi to : @& ,!a /@" psi.

S302.3 C"&!e* M"%e In!

Ta#le S30&.3 lists the node num#ers lengths etc. fo

each piping component that is displa$ed in Fig. S30&.1

The computer#ased options are the same as those fo

the Example 1 model% see para. S301.3.

/?0 ft m /30 ft /30 ft m /?0 ft

/10 /10

W :tW

"

X

:.1 m

/&0 ft

2. YsY.Y

(

W /&0 /30 D130 /1&0 /11"/110

Conditions !ressure Temperature

=esign conditions 3 : ,!a 30&C

"@"F

/"@" psi

Gperating P1 T1 3 @" ,!a & ""0

metal temperature /""0 psi

/Gperating Case 1

Gperating /P& T& 0 ,!a /0 psi 1C /30F

metal temperature/Gperating Case &

Installation temperature &1C /@0F


8/17

T$e S302.3 Gene*' Pe S!*e## M"%e In!+C"&"nen! C"nne'!4!6 Te6 $n% Len!#

ASME B31.3-2010


Not for Resale, 07/05/2011 13:38:11 !"



5302. P*e##*e Ee'!#

The pressure e6ect considerations are the same as

those for Example 1% see para. 301.?.

5302.5 Te Oe*$!n L"$% C$#e

The operating condition e+aluated and discussed in

this example Gperating Case 1 includes the e6ects

of pipe 'eight insulation 'eight 9uid 'eight internal

pressure !N 3 @" ,!a /""0 psiB and temperature

T1 &C /""0FB. An operating load case is

e+aluated to determine the operating position of the

piping and determine the reaction loads for an$

attached e7uipment anchors supports guides or

stops. In particular each operating load caseDs

support scenario is e+aluated or assessed #$ the

designer in order to determine 'hether an$

anticipated sustained conditions need to #e e+aluated

'ith one or more )- supports remo+ed. Further

operating load case discussion can #e found in para.

S301.".

!iping loads acting on the anchors and support

structure for Gperating Case 1 are listed in Ta#le

S30&.".1. >ote that onl$ nodes 10 through "0 are

listed in the follo'ing ta#les% this is #oth forcon+enience since the model is s$mmetric and for

comparison to Example 1 e.g. the loads de9ections

and stresses for nodes 10 through ?0 are the same as

for nodes 110 through 1?0 except that some signs

ma$ #e re+ersed.

5302.8 S#!$ne% C"n%!"n#

(10) S302.8.1 Te S!*e## De !"S#!$ne% L"$%#6 SL,

C$'$!"n#. The stress due to /longtermsustained loads S!, is computed in accordance 'ith

para. 3&0.&

for each sustained condition that is e+aluated% see

para. S30&.:.&.

5302.8.2 An!'$!e% S#!$ne%C"n%!"n#. Aanticipated sustained conditions utiliPing all possi#le

support scenarios should #e considered. The designer

has identied four anticipated sustained conditions

for this piping s$stem% each is listed in Ta#le

S30&.:.&.1 along 'ith the support status of the node"0 )- support as either assessed #$ anal$sis or

determined #$ the designer. The designer has

deemed the Sustained Condition 3 as #oth controlling

the sustained design and re7uiring e+aluation.

5302.8.3 Re#!# @"* !e E4$$!e%S#!$ne% C"n%!"n. The Sustained Condition3 re9ects the support scenario of the Gperating Case

1 excludes thermal e6ects and includes the e6ects

of internal pressure !N 3 @" ,!a /""0 psiB pipe

'eight insulation 'eight and 9uid 'eight on the

piping s$stem. A summar$ of the Sustained Condition

3 internal reaction forces moments and sustained

stresses S!,appears in Ta#le S30&.:.3.1. See para.

S301.: for additional information concerning the

sustained stress determination.

5302.? D#$'e&en! S!*e##R$ne L"$% C$#e#

The displacement stress range load cases are not

listed since the$ are not the su#Nect of this example.

5302.< C"%e C"&$n'e+S$!#@n !e In!en! "@ !eC"%e

The Sustained Condition 3 results indicate that the

From To Zm

)m

ZG Component T$pe

10 1" :.10 /&0 10 anchor

1" informationalno e

1" &0 :.10 /&0 &0 Ysupport

&0 30 3.0" /10 T ree no e e o' /1B

30 ?0 :.10 /&0 T ree no e e o' /1B

?0 ?" 3.0" /10 Informational node

?" "0 :.10 /&0 "0 )- support

110 11" :.10 /&0 110 anchor

11" informational

11" 1&0 :.10 /&0 1&0 Ysupport

1&0 130 3.0" /10 Three node el#o' /1B

130 1?0 :.10 /&0 T ree no e e o' /1B

1?0 1?" 3.0" /10 Informational node

1?" "0 :.10 /&0

>GTE4

/1 The specied component lengths are measured to and2or from each el#o's tangent

intersection point.


9/17


ASME B31.3-2010


Not for Resale, 07/05/2011 13:38:11 !"



piping s$stem is not protected against collapse for the c$cles under anal$sis 'hen considering the Gperating

&


10/17

ASME B31.3-2010

44


Not for Resale, 07/05/2011 13:38:11 !"



T$e S302.5.1 Re#!# @"* Oe*$!n C$#e 1+ Re$'!"n L"$%# "n S"*! $n%An'"*#

>GTES4

/1Ooads and de9ections are a+eraged from commercial programs 'ith a +ariance

'ithin units con+ergence tolerances. Magnitudes of loads for nodes 10 and &0 are

the same for 110 and 1&0 #ut ma$ di6er in sign.

/& >o support is pro+ided at the node "0 )- restraint for Gperating Case 1.

T$e S302.8.2.1 S#!$ne% L"$% C"n%!"n L#!n

>GTES4

/1 The original /asinstalled condition considers onl$

pipe 'eight and insulation 'eight 'ithout 9uid

contents or internal pressure.

/& The Sustained Conditions re9ect the support

scenario of the related Gperating Conditions

exclude thermal e6ects and include the e6ects of

the related internal pressure pipe 'eight

insulation 'eight and 9uid 'eight on the piping

s$stem.

T$e S302.8.3.1 S#!$ne% 9"*'e# $n% S!*e##e# @"* S#!$ne% C"n%!"n 3 !N"%e 50 S"*! Re&"4e% :A";$e Sh=12.5 MP$ (1

>GTES4

/1 Ooads and de9ections are a+eraged from commercial programs 'ith a +ariance 'ithin units con+ergence

tolerance. The magnitude of loads and stresses for nodes 10 through ?0 are the same for 110 and 1?0 though the

loads ma$ di6er in sign.

/& Forces ha+e their sign retained #ut do not include the signed axial pressure force necessar$ to compute the axial

stress 'hich is included in the sustained stress S!&

/3 Stress ma$ di6er #$ slightl$ more than units con+ersion tolerance.

/? >o support is pro+ided at the node "0 )- restraint for Sustained Condition 3.

>ode $x,> /l# /Signed >ote /1B

$*,> /l# /Signed >ote /1B

%+,>m /ftl#

/Qnsigned >ote/1B

10 anchor &: :00 /"@" 1? 0"0 /31"0 &@ 000100

&0 " 00 /13&"0"0 2- 0 >ote /&B

Sustained Condition >ode "0s Support Status

/Acti+e2Remo+ed

14

As installed >ote /1B Acti+e

& P1>ote /&B Acti+e3 !1 >ote /&B Inacti+e

? P& >ote /&B Acti+e

>ode ;lo#al Axis Forces and Moments >ote /1B Sustained S!, ,!a/psi >otes /& /3B

$x,> /l#/Signed>ote

,

> /l# /Signed >ote /&B%+, >m /ftl# /Qnsigned

10 anchor 1& "@" /&&" 3" /1" 3 " /&?" ? :?" /@0""

&0 support 1& "@" /&&" :? ":" /1?"1" & ?" /:10" 1& @" /1"0

30 far 1& "@" /&&" 3? " /@:" & " /&&11" 101 &0 /1?@0

?0 mid 1& "@" /&&" &1 "0 /?3" 3& @@0 /&?1:" 10 "&" /1"@?0

"0 )- 1& "@" /&&" 0 >ote /?B :& " /?:3@" 10 3" /1":"


11/17

ASME B31.3-2010


Not for Resale, 07/05/2011 13:38:11 !"



9. S303.1 M"&en! Re4e*#$M"%e

Case 1. Therefore redesign of the piping s$stem is

re7uired.

If the piping s$stem is redesigned such that it is

compliant 'ith the intent of the Code then the pipings$stem 'ould re7uire no further attention unless the

sustained h$drotest or operating reaction loads at

either anchor data point 10 or 110 exceed the

allo'a#le loads for the attached e7uipment noPPle or

the support structure at either node &0 or 1&0 is

o+erloaded. The noPPle loads and support structure

anal$ses are #e$ond the scope of this Appendix and

are not addressed. Although the occasional load

cases are important to the design and anal$sis of a

piping s$stem the$ are not discussed in this

example.

S303 EXAMPLE 3+ MOMENT REERSALS303.1 E,$&e De#'*!"n

This example is intended to illustrate the 9exi#ilit$

anal$sis re7uired for a piping s$stem that is designed

for more than one operating condition and also

experiences a 5re+ersal of moments5 #et'een an$

t'o of the anticipated operating conditions. The

examples in this Appendix are intended for

illustration purposes onl$ and are not intended to

portra$ the same as either ade7uate or e+en

accepta#le piping geometries and2 or support

scenarios.


12/17

ASME B31.3-2010


Not for Resale, 07/05/2011 13:38:11 !"



301


13/17

ASME B31.3-2010

4


Not for Resale, 07/05/2011 13:38:11 !"



T$e S303.1 P*e##*e/Te&e*$!*e C"&n$!"n#

;E>ERAO >GTE4 For computer #ased temperature and pressure data input consider the [est either pressure sti6ening nor ote /&B /&"0 psi /&"0F /0 psi /?0F /&"0 psi /&"0F

Installation ?."C ?."C ?."Ctemperature /?0F /?0F /?0F


14/17


ASME B31.3-2010

#o$%ri&'t ()* +nternationalProi-e- .% +) n-er license it' ()* Licensee=YPF/5915794100

No re$ro-ction or netorin& $eritte- it'ot license fro +) Not for Resale, 07/05/2011 13:38:11 !"

From To D#, m /ft D", m /ft Component T$pe

10 &0 1."& /" 10 anchor /=> :00

eader &0 'elding tee

&0 30 1."& /" 30 'elding tee

30 3" 0.@: /&." 3" simulated end cap

&0 ?0 1."& /" ?0 'elding tee?0 ?" 0.@: /&." ?" end cap

?0 110 1."& /" /East => "00 /&000 l# meter130 1?0 1."& /" 1?0 pipe segment

1?0 3?0 1."& /" 3?0 'elding tee

30 &10 1."& /" /[est => "00 /&000 l# meter

&30 &?0 1."& /" &?0 pipe segment

&?0 330 1."& /" 330 'elding tee

310 3&0 1."& /" /=> :00 eader310 anchor free in the (

/axial directionB 3&0 'eldingtee

3&0 330 1."& /" 330 'elding tee330 33" 0.@: /&." 33" end cap

3&0 3?0 1."& /" 3?0 'elding tee

3?0 3?" 0.@: /&." 3?" end cap

;E>ERAO >GTE4 This pipings$stem isplanar i.e. DY=0 m /0 ft for each piping component.

'hen considering the e7. /1# allo'a#le SV. There

fore redesign of the piping s$stem is re7uired.

The redesign should consider the additional impact

of a+erage axial displacement stresses in accordance


15/17


ASME B31.3-2010



'ith the recommendations in para. 31.&.3/c. If

the piping s$stem is redesigned such that it is

compliant 'ith the intent of the code then the piping

s$stem 'ould re7uire no further attention unless the

sustained h$drotest or operating reaction loads at

either anchor data point 10 or 310 or meter runs 130

or &30 exceeded the allo'a#le loads for the attached

e7uipment noPPles or support structure. The meter

loads noPPle loads and support structure anal$ses

are #e$ond the scope of this example. Although the

occasional load cases are important to the design and

anal$sis of a piping s$stem the$ are not discussed in

this example.

303

T$e S303.?.1 C$#e 1+ D#$'e&en!S!*e## R$ne :E. (1$) A";$e SA=2

;lo#al Axis Forces and Moments

$x, %*, E7. /1@

> /l# >m/ftl# SE,

/Signed /Signed ,!a /psi

>ode >ote/1B >ote /1B >ote/&B

>GTES4

/1 Ooads are a+eraged from commercial programs and are directl$ a6ected #$ the

sti6ness chosen for +al+es 9anges and other relati+el$ sti6 components.

/& Stress ma$ di6er #$ slightl$ more than units con+ersion tolerance.

10 anchor 0 1?@ ?@0 /10@"" "" :10 /0:"

&0 tee 0 1?@ ?@0 /10@"" 1 ?" &@""30 tee @ ?" /1@:?" ?" 00 /33"0 ? 3:0 /1&&3

?0 tee @ ?" /1@:?" ?" 00 /33"0 ? 3:0 /1&&3

110 Y @ ?" /1@:?" ?" 00 /33"0 &" 1"" /3:"0

1&0 @ ?" /1@:?" ?" 00 /33"0 &" 1"" /3:"0

130 meter @ ?" /1@:?" ?" 00 /33"0 &" 1"" /3:"0

1?0 Y @ ?" /1@:?" ?" 00 /33"0 &" 1"" 3:"0

3?0 tee @ ?" /1@:?" ?" 00 /33"0 ? 3:0 1&&3

&10 Y @ ?" /1@:?" ?" 00 /33"0 &" 1"" /3:"0&&0 @ ?" /1@:?" ?" 00 /33"0 &" 1"" 3:"0

&30 meter @ ?" /1@:?" ?" 00 /33"0 &" 1"" /3:"0

&?0 Y @ ?" /1@:?" ?" 00 /33"0 &" 1"" 3:"0

330 tee @ ?" /1@:?" ?" 00 /33"0 ? 3:0 1&&3

310 anchor 0 1?@ ?@0 /10@"" "" :10 0:"

3&0 tee 0 1?@ ?@0 /10@"" 1 ?" /&@""


16/17


ASME B31.3-2010



30?

T$e S303.?.2 C$#e 2+ D#$'e&en!S!*e## R$ne :E. (1$) A";$e SA=2

;lo#al Axis Forces and Moments$x, %*, E7. /1@> /l# >m/ftl# SE,

/Signed /Signed ,!a /psi

>ode >ote/1B >ote /1B >ote/&B

>GTES4




30"

T$e S303.?.3 L"$% C"&n$!"n C"n#%e*n C$#e# 1 $n% 26T"!$ S!*$n B$#e%+ D#$'e&en! S!*e## R$ne :E. (1)

A";$e SA=3?=.< MP$ (55.1 #)+ 9$#>;lo#al Axis Forces and Moments >ote /1B E7 /1@

$x, %*, SE,

> /l# >m/ftl# ,!a /psi

>ode /Signed /Signed >otes /&/3B

10anchor 0 1?@ ?@0 /10@"" "" :1 0:

&0tee 0 1?@ ?@0 10@"" 1 ? 0"30 tee @ ?" /1@:?" ?" 00 33"0 ? 3: 1&&

?0 tee @ ?" /1@:?" ?" 00 33"0 ? 3: 1&&

110 Y @ ?" /1@:?" ?" 00 33"0 &" 1" 3:"

1&0 @ ?" /1@:?" ?" 00 33"0 &" 1" /3:"130 meter @ ?" /1@:?" ?" 00 33"0 &" 1" 3:"

1?0 Y @ ?" /1@:?" ?" 00 33"0 &" 1" /3:"

3?0 tee @ ?" /1@:?" ?" 00 33"0 ? 3: 1&&

&10 Y @ ?" /1@:?" ?" 00 33"0 &" 1" 3:"

&&0 @ ?" /1@:?" ?" 00 33"0 &" 1" /3:"&30 meter @ ?" /1@:?" ?" 00 33"0 &" 1" /3:"

&?0 Y @ ?" /1@:?" ?" 00 33"0 &" 1" /3:"330 tee @ ?" /1@:?" ?" 00 33"0 ? 3: /1&&

310 anchor 0 1?@ ?@0 10@"" "" :1 /0:3&0 tee 0 1?@ ?@0 /10@"" 1 ? 0"


17/17


ASME B31.3-2010

#o$%ri&'t ()*+nternational

;E>ERAO >GTE4Thesustainedstress used in determining the e7. /1# allo'a#le fornodes &0 and 3&0

is S! & 30 ,!a /?11" psi.

>GTES4




/3 The additional impact of a+erage axial displacement stresses in accordance

'ith the recommendations in para. 31.&.3/c has not #een included in determining

the displacement stress range.

30:

10 anchor 0 &? ?0 /&1@"10 111 &&0 1:130

&0 tee 0 &? ?0 /&1@"10 3@ 0 /""10

30 tee 1": @0 /3"&0 1 00 /:@@00 1: @&0 &??@?0 tee 1": @0 /3"&0 1 00 /:@@00 1: @&0 /&??@

110 Y 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

1&0 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

130 meter 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

1?0 Y 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

3?0 tee 1": @0 /3"&0 1 00 /:@@00 1: @&0 &??@

&10 Y 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

&&0 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

&30 meter 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

&?0 Y 1": @0 /3"&0 1 00 /:@@00 "0 310 /@300

330 tee 1": @0 /3"&0 1 00 /:@@00 1: @&0 &??@

310 anchor 0 &? ?0 /&1@"10 111 &&0 1:13

3&0 tee 0 &? ?0 /&1@"10 3@ 0 /""10

Appendixs Piping System Stress Analysis Examples

Documents

Transcript of Appendixs Piping System Stress Analysis Examples