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1. Free Span Installation
Initial Data
Process
Design temperature 100 degree celcius
Pressure design 0 psi
0 Pa
Corrosion rate 0.06 mm/year
0.00006 m/year
Berat jenis gas (cont) 0 kg/m
0 pc!
Production li!e "# year
Pipe
$aterial %P& #' 60
*uter diameter (Ds) "+ inc,
0.60-6 m
&nternal diameter (&D) 0.#+" m
all t,ickness (ts) 0.# inc,
0.01" m
oung2s modulus 3aja (4) 0000000 psi
".06+4511 Pa
Poisson2s ratio 3aja 0.
Berat jenis 3aja +-0 pc!
+-.06# kg/m
Berat jenis 3eton (cc) 1-0 pc!
0+.#1# kg/m
$ +16#+"0 Pa
tcc (te3al concrete coating) 0.0#6 m
tcorr (te3al corrosion coating) 0.001# m
Corrosion coating density (corr) 60 pc!
-61.11 kg/m
7 0.1"6
Environment Dept, "# m
Densitas air laut (s8) 6+ pc!
10"#.1+ kg/m
9iskositas :inematik air laut 0.0000010# m"/sec
;ydrodinamic coe
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;%= 1. m
'%= 1.+ m
:ecepatan %rus
1 year (m/s) 100 year (m/s)
0> D 0.+ 0.-
"0> D 0.6- 0.1
+0> D 0.# 0.6
-0> D 0.#1 0.6
100> D 0.+ 0.#
?elom3ang
@eturn period 1yr 100yrs
igniAcant 8ae ,eig,t (m) " .
igniAcant 8ae period (s) +." #.#
$aimum indiidual ,eig,t (m) + 6
=s +." sec
=p +.+1 sec
;s " m
"
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Calculation
Submerged Weigh Calculation
*utside diameter (Dtot) 0."+6 m
4lastic modulus (4&) "1-6-.#
&nertia (&) 0.0010611"1
eig,t o! pipe (st) 16.-"+#"
Corrosion coating 8eig,t (corr) 11-.1011#
Concrete coating 8eig,t (cc) #.--"
Content 8eig,t (cont) 0%dded mass/displaced 8ater (add) +"".#+61
=otal e
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Wave Induced Velocit Calculation
8ae -0 degreeae lengt, (initial guess) (') 0.6+#1"# m
+
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ae lengt, (Ee8ton@ap,son) (') 0.6"6 m
k 0."06-16
;oriFontal 8ater particle elocity (GdH)
H u GdH
0 0.016"+6 0.016"+6
10 0.016066"
"0 0.01#+01"
0 0.01+1#
+0 0.01"#0#+1
#0 0.010+-0"
60 0.0016"+
0 0.00##
0 0.00"+#1
-0 1.0000141
;oriFontal 8ater particle elocity ma (G8) 0.016"+6 m/"
@eduction !actor (@8ae) 1
igni!icant 8ae elocity perpend. (G8dH) 0.016"+6 m/s
;oriFontal 8ater particle acceleration (%dH)H % %dH
0 0.0""#" 0
10 0.00+06
"0 0.00-#+-#+
0 0.0116"-6+
+0 0.01+-#0+""
#0 0.011""
60 0.0"01+"6#
0 0.0"1#60##
0 0.0""-0#6-0 0.0""#"
;oriFontal 8ae acceleration perpend. ma(%8) 0.0""#" m/s"
@eduction !actor (@8ae) -0igniAcant 8ae acceleration perpend. ma(%8dH) ".0-"### m/s"
#
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6
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Free Span ! Dnamic
ta3ility num3er (:s) 0.#0--#0
9rI !rom t,e grap, 1.#
*scillation type&nlineoscillation
@e (tcc) #I610.+61
trou,al num3er (t)I !rom t,e grap, 0.-
9orte s,edding !reJuency (!) 0.60+0+666 ;F
Critical Pipespan ('cr)
a #+.+1"
3 "."-6"#"0
'cr +#.6-#+ m
Free Span ! Static
'erit -.+ m
Ka0I-+I6.00
00
K"-I0##I#".-
6
C,eck *:
;oop stress (K,) 60+".0"+
9on mises (Ke) "-110-0#.
C,eck 0.-$ *:
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". Free Span #drotest
Initial Data
Process
Design temperature 100 degree celcius
Pressure design 1+# psi
1""0"6.6 Pa
Corrosion rate 0.06 mm/year
0.00006 m/year
Berat jenis gas (cont) 10"# kg/m
Production li!e "# year
Pipe
$aterial %P& #' 60
*uter diameter (Ds) "+ inc,
0.60-6 m
&nternal diameter (&D) 0.#+" m
all t,ickness (ts) 0.# inc,
0.01" m
oung2s modulus 3aja (4) 0000000 psi
".06+4511 Pa
Poisson2s ratio 3aja 0.
Berat jenis 3aja +-0 pc!
+-.06# kg/m
Berat jenis 3eton (cc) 1-0 pc!
0+.#1# kg/m
$ +16#+"0 Pa
tcc (te3al concrete coating) 0.0#6 m
tcorr (te3al corrosion coating) 0.001# mCorrosion coating density (corr) 60 pc!
-61.11 kg/m
7 0.1"6
Environment
Dept, "# m
Densitas air laut (s8) 6+ pc!
10"#.1+ kg/m
9iskositas :inematik air laut 0.0000010# m"/sec
;ydrodinamic coe
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Cd 0.-
Cm ."-
C' 0.-
%stronomical =ide
;%= 1. m
'%= 1.+ m
:ecepatan %rus
1 year (m/s) 100 year (m/s)
0> D 0.+ 0.-
"0> D 0.6- 0.1
+0> D 0.# 0.6
-0> D 0.#1 0.6
100> D 0.+ 0.#
?elom3ang
@eturn period 1yr 100yrs
igniAcant 8ae ,eig,t (m) " .
igniAcant 8ae period (s) +." #.#
$aimum indiidual ,eig,t (m) + 6
=s +." sec
=p +.+1 sec
;s " m
-
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Calculation
Submerged Weigh Calculation
*utside diameter (Dtot) 0."+6 m
4lastic modulus (4&) "1-6-.#
&nertia (&) 0.0010611"1
eig,t o! pipe (st) 16.-"+#"
Corrosion coating 8eig,t (corr) 11-.1011#
Concrete coating 8eig,t (cc) #.--"
Content 8eig,t (cont) "+.+-+6"-%dded mass/displaced 8ater (add) +"".#+61
=otal e
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Wave Induced Velocit Calculation8ae -0 degree
11
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ae lengt, (initial guess) (') 0.6+#1"# m
ae lengt, (Ee8ton@ap,son) (') 0.6"6 m
k 0."06-16
;oriFontal 8ater particle elocity (GdH)
H u GdH
0 0.016"+6 0.016"+6
10 0.016066"
"0 0.01#+01"
0 0.01+1#
+0 0.01"#0#+1
#0 0.010+-0"
60 0.0016"+
0 0.00##
0 0.00"+#1
-0 1.0000141
;oriFontal 8ater particle elocity ma (G8) 0.016"+6 m/"
@eduction !actor (@8ae) 1
igni!icant 8ae elocity perpend. (G8dH) 0.016"+6 m/s
;oriFontal 8ater particle acceleration (%dH)
H % %dH
0 0.0""#" 0
10 0.00+06
"0 0.00-#+-#+
0 0.0116"-6+
+0 0.01+-#0+""
#0 0.011""
60 0.0"01+"6#
0 0.0"1#60##0 0.0""-0#6
-0 0.0""#"
;oriFontal 8ae acceleration perpend. ma(%8) 0.0""#" m/s"
@eduction !actor (@8ae) -0igniAcant 8ae acceleration perpend. ma(%8dH) ".0-"### m/s"
1"
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1
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Free Span ! Dnamic
ta3ility num3er (:s) 0.6+"#1
9rI !rom t,e grap, 1.#
*scillation type&nlineoscillation
@e (tcc) #I610.+61
trou,al num3er (t)I !rom t,e grap, 0.-
9orte s,edding !reJuency (!) 0.60+0+666 ;F
Critical Pipespan ('cr)
a +.+0"
3 "."-6"#"0
'cr +1.60#-+"# m
Free Span ! Static
'erit 6.- m
Ka0I-+I6.00
00
K""1I#I#66.1
"0
C,eck *:
;oop stress (K,) "--"6#606.-
9on mises (Ke) """6.6
C,eck 0.-$ *:
1+
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$. Free Span %peration
Initial Data
Process
Design temperature 100 degree celcius
Pressure design 1"0 psi
+0##1.11 Pa
Corrosion rate 0.06 mm/year
0.00006 m/year
Berat jenis gas (cont) # kg/m
"1# pc!
Production li!e "# year
Pipe
$aterial %P& #' 60
*uter diameter (Ds) "+ inc,
0.60-6 m
&nternal diameter (&D) 0.#+" m
all t,ickness (ts) 0.# inc,
0.01" m
oung2s modulus 3aja (4) 0000000 psi
".06+4511 Pa
Poisson2s ratio 3aja 0.
Berat jenis 3aja +-0 pc!
+-.06# kg/m
Berat jenis 3eton (cc) 1-0 pc!
0+.#1# kg/m
$ +16#+"0 Pa
tcc (te3al concrete coating) 0.0#6 m
tcorr (te3al corrosion coating) 0.001# mCorrosion coating density (corr) 60 pc!
-61.11 kg/m
7 0.1"6
Environment
Dept, "# m
Densitas air laut (s8) 6+ pc!
10"#.1+ kg/m
9iskositas :inematik air laut 0.0000010# m"/sec
;ydrodinamic coe
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Cd 0.-
Cm ."-
C' 0.-
%stronomical =ide
;%= 1. m
'%= 1.+ m
:ecepatan %rus
1 year (m/s) 100 year (m/s)
0> D 0.+ 0.-
"0> D 0.6- 0.1
+0> D 0.# 0.6
-0> D 0.#1 0.6
100> D 0.+ 0.#
?elom3ang
@eturn period 1yr 100yrs
igniAcant 8ae ,eig,t (m) " .
igniAcant 8ae period (s) +." #.#
$aimum indiidual ,eig,t (m) + 6
=s #.# sec
=p #.# sec
;s . m
16
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Calculation
Submerged Weigh Calculation
*utside diameter (Dtot) 0."+6 m
4lastic modulus (4&) "1-6-.#
&nertia (&) 0.0010611"1
eig,t o! pipe (st) 16.-"+#"
Corrosion coating 8eig,t (corr) 11-.1011#
Concrete coating 8eig,t (cc) #.--"
Content 8eig,t (cont) -.16-#%dded mass/displaced 8ater (add) +"".#+61
=otal e
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Wave Induced Velocit Calculation8ae -0 degree
1
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ae lengt, (initial guess) (') #".0066+0+ m
ae lengt, (Ee8ton@ap,son) (') 0.6"6 m
k 0."06-16
;oriFontal 8ater particle elocity (GdH)
H u GdH
0 0.0-#++" 0.0-#++"
10 0.0-+6#1
"0 0.016+16
0 0.0+"+---
+0 0.00"-#-#
#0 0.0"#+"1"+
60 0.01-+"+1
0 0.01#"6
0 0.0066#""
-0 ".+""6+41
;oriFontal 8ater particle elocity ma (G8) 0.0-#++" m/"
@eduction !actor (@8ae) 1
igni!icant 8ae elocity perpend. (G8dH) 0.0-#++" m/s
;oriFontal 8ater particle acceleration (%dH)
H % %dH
0 0.0+0"6+ 0
10 0.00+1+6
"0 0.01+1666+
0 0.0"1#1+"+
+0 0.0"6#"1
#0 0.0"-61#6
60 0.0"6-0"
0 0.0+0+00 0.0+"+-+6
-0 0.0+0"6+
;oriFontal 8ae acceleration perpend. ma(%8) 0.0+0"6+ m/s"
@eduction !actor (@8ae) -0igniAcant 8ae acceleration perpend. ma(%8dH) ."#"" m/s"
1-
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"0
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Free Span ! Dnamic
ta3ility num3er (:s) 0.#11-11
9rI !rom t,e grap, 1.#
*scillation type&nlineoscillation
@e (tcc) #1I66.-0
trou,al num3er (t)I !rom t,e grap, 0.-
9orte s,edding !reJuency (!) 0.6"-"1"# ;F
Critical Pipespan ('cr)
a #0.#6-+#+
3 ".1#"6"6
'cr ++.166++1 m
Free Span ! Static
'erit 6+ m
Ka0I-+I6.00
00
K
1+I#00I1+.-0
16C,eck *:
;oop stress (K,) 1-+---.6
9on mises (Ke) 106-."
C,eck 0.-$ *:
"1