1
PETUNJUK PENGERJAAN TUGAS AKHIR JACKET INPLACE
A. JACKET FRAME
1. Peserta mendapatkan data yang berbeda sesuai tabel
2. Jacket Frame dimodelkan sesuai data masing-masing peserta di excel 3. Jarak antar pile di working point X = 15 m , Y = 10 m (sama dengan latihan) 4. Batter semua pile x=10 y=10
5. Type Leg : UNGROUTED
6. Dimensi Leg & Pile sama dengan latihan
JACKET LEG = LG1 – LG4
Segment Diameter WT Fy Segment Length
1 48.5” (123.19 cm) 1.75 (4.445 cm) 34.5 kN/cm2 2 m 2 47” (119.38 cm) 1” (2.54 cm) 34.5 kN/cm2
3 48.5” (123.19 cm) 1.75 (4.445 cm) 34.5 kN/cm2 2 m
PILE = PL1-PL5
Segment Diameter WT Fy
Pile (PL1-PL5) 42 “ 1.5 34.5 kN/cm2
Wish Bone (W.B) 30” 1” 24.5 kN/cm2
DECK LEG
Member Group Diameter WT Fy Mark
DL6 42” 1.5” 34.5 kN/cm2 Column
DL7 42” 1.5” 34.5 kN/cm2 Column
B. HORIZONTAL JACKET FRAME (typical)
Model : Diamond , sama di setiap level
Properties : Nama grup, diameter, tebal, fy, sama disetiap level Type : Non Flooded
FRAME LEVEL HB0, HB1, HB2
2 FRAME LEVEL HB3
NUMBER GROUP DIAMETER WT FY (Kn/cm2)
HB1 28” 0.5” 34.5 Primary (box)
HB2 20” 0.5” 34.5 Secondady (diamond)
C. X-BRACE
Model vertical brace : X-Brace
Group : BR1, BR2, BR2
Type : Non Flooded
NUMBER GROUP DIAMETER WT FY (Kn/cm2)
BR1 28” 0.75” 34.5
BR2 28” 0.75” 34.5
BR3 20” 0.75” 34.5
Penamaan titik simpang (intersection)
ROW
A B 1 2
Level 1 10AX 10BX 101X 102X
Level 2 20AX 20BX 201X 202X
Level 3 30AX 30BX 301X 302X
4 m
=
=
=
3 D. MAIN DECK
A. Member Length
B. Member Group
4 W01 = W24X162 (Fy : 24.8)
W02 = W24X131 (Fy : 24.8) E. CELLAR DECK FRAME
1. Member Length
2. Member Group
W01 = W24X162 W02 = W24X131
5 F. LY, SPAN
Definisikan nilai Ly untuk Horizontal Bracing member
Definisikan nilai Ly untuk Vertical Bracing member
Definisikan nilai Ly untuk Main Deck & Cellar Deck member
Definisikan SPAN untuk Main Deck & Cellar Deck member
G. MARINE GROWTH
Data marine growth didapatkan dari hasil inspeksi. Densitas marine growth sebesar 1.4 T/m3.
Elevation Maximum Marine Growth
Thickness (cm) 0 (MSL) – highest level of splash zone (+1.15) 10
Level HB1 - 0 5
Mudline – level HB1 2.5
*Level HB1 (Horizontal Bracing 1) lihat tabel
H. CD & CM
Shape Condition In-Place
CD
Smooth 0.65
Rough 1.05
CM
Smooth 1.60
Rough 1.20
6 I. LOAD NAME
DISCIPLINE OF LOADS CONDITION LOADING NUMBER
DESCRIPTION
Structural 1 Structural Self Generated Load
100 SW at Normal Operating at Minimum Depth 200 SW at Normal Operating at Maximum Depth 300 SW at Storm Operating at Minimum Depth 400 SW at Storm Operating at Maximum Depth
Structural Appurtenance 2 Structural Appurtenance
Live 3 Live Load
Piping Operating 4 Piping Operating
Mechanical Operating 5 Mechanical Operating
Electrical & Instrument 6 Electrical & Instrument Weight
Environment Normal Operating Minimum Depth 101 Environment Normal Operating at 0o – Minimum Depth 102 Environment Normal Operating at 45o– Minimum Depth 103 Environment Normal Operating at 90o– Minimum Depth 104 Environment Normal Operating at 135o– Minimum Depth 105 Environment Normal Operating at 180o– Minimum Depth 106 Environment Normal Operating at 225o– Minimum Depth 107 Environment Normal Operating at 270o– Minimum Depth 108 Environment Normal Operating at 315o– Minimum Depth Environment Normal Operating Maximum Depth 201 Environment Normal Operating at 0o- Maximum Depth
202 Environment Normal Operating at 45o- Maximum Depth 203 Environment Normal Operating at 90o- Maximum Depth 204 Environment Normal Operating at 135o- Maximum Depth 205 Environment Normal Operating at 180o- Maximum Depth 206 Environment Normal Operating at 225o- Maximum Depth 207 Environment Normal Operating at 270o- Maximum Depth 208 Environment Normal Operating at 315o- Maximum Depth Environment at Storm Minimum Depth 301 Environment Storm at 0o – Minimum Depth
302 Environment Storm at 45o– Minimum Depth 303 Environment Storm at 90o– Minimum Depth 304 Environment Storm at 135o– Minimum Depth 305 Environment Storm at 180o– Minimum Depth 306 Environment Storm at 225o– Minimum Depth 307 Environment Storm at 270o– Minimum Depth 308 Environment Storm at 315o– Minimum Depth Environment at Storm Maximum depth 401 Environment Storm at 0o – Maximum Depth
402 Environment Storm at 45o– Maximum Depth 403 Environment Storm at 90o– Maximum Depth 404 Environment Storm at 135o– Maximum Depth 405 Environment Storm at 180o– Maximum Depth 406 Environment Storm at 225o– Maximum Depth 407 Environment Storm at 270o– Maximum Depth 408 Environment Storm at 315o– Maximum Depth
7 J. ENVIRONMENTAL LOAD
1. Current Load : lihat tabel
Current Load : Percent of Depth
(%)
1-year (Operating) 100-years (Storm) Current Speed (m/s) Current Speed (m/s)
0 0.38 0.65
10 0.43 0.74
20 0.48 0.82
30 0.50 0.87
40 0.52 0.90
50 0.54 0.93
60 0.55 0.96
70 0.57 0.98
80 0.58 1.00
90 0.59 1.01
100 0.60 1.03
Blockage Factor : 0.8
2. Wind Load
Periode Ulang Wind Speed (m/s)
1-year 20.1
100-years 23.2
Masukan semua beban dari arah sudut lain 0, 45, 90, 135, 180, 225, 270, 315
Masukan semua environment untuk 4 kondisi
WAVE LOAD
Kondisi
WAVE
d T H
m s m
Normal Min Depth Normal Max Depth Storm Min Depth Storm Max Depth
*isi sesuai tabel
d = water depth , T = Wave periode , H = Wave Height
8 Kinematic Factor : 0.9
V normal = 0.6 m/det V Strom = 1.1 m/det
K. BEBAN DI DECK
Beban-beban yang diterima struktur berdasarkan API RP 2A-WSD dapat berupa beban-beban sebagai berikut :
1. Beban Mati
Beban mati struktur adalah berat struktur itu sendiri, semua perlengkapan yang permanen, dan perlengkapan struktur yang tidak berubah selama beroperasinya struktur.
1 SW at Normal Operating at SWL 100 SW at Normal Operating at Min Depth 200 SW at Normal Operating at Max Depth 300 SW at Storm Operating at Min Depth 400 SW at Storm Operating at Max Depth
2. Beban Structure Appurtunance
Anode : 2.0 kN di setiap member jacket yang terendam (1 anode/member)
Grating (32.5 kg/m2 = 0.32 kN/m2) 3. Beban Mechanical
Main Deck ELEV +16.7
MECH ID FORCES (kN) L x W COG
SKID 1 -112.05 6 x 3 m 5,2, Z
SKID 2 -181 6 x 2.5 m -5.0, -7.0, Z
SKID 4 -125.58 6 x 3 m 10.0, 6.0, Z
9 Z = ELEVATION MAI DECK SESUAI DATA
Cellar Deck ELEV +9.0
MECH ID FORCES (kN) L x W COG
SKID 3 -218..4 6 x 2.5 m 5 ,0, Z
Z = ELEVATION MAI DECK SESUAI DATA
4. Beban Piping
Level Q
kN/m2
Panjang (m)
Lebar (m) Luas (m2)
Berat (kN)
Main Deck (El +16.70) 1.5 20 18 360 540
Cellar Deck (El + 9.00) 1 15 18 270 270
10 5. Beban Electrical & Instrument
Level Q
kN/m2
Panjang (m)
Lebar (m) Luas (m2)
Berat (kN)
Main Deck (El +16.70) 0.5 20 18 360 180
Cellar Deck (El + 9.00) 0.22 15 18 270 59.4
6. Beban Hidup
Non-Wellhead
Main Deck 5 kN/m2
Cellar Deck 2.5 kN/m2
11 L. LOAD COMBINATION
0 45 90 135 180 225 270 315 0 45 90 135 180 225 270 315 LOAD 1001 1002 1003 1004 1005 1006 1007 1008 2001 2002 2003 2004 2005 2006 2007 2008
1
100 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05
200 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05
300 400
2 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 3 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 4 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 5 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 6 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 101 1.00
102 1.00
103 1.00
104 1.00
105 1.00
106 1.00
107 1.00
108 1.00
201 1.00
202 1.00
203 1.00
204 1.00
205 1.00
206 1.00
207 1.00
208 1.00
LOAD COMBINATION - NORMAL OPERATING
MININUM DEPTH MAXIMUM DEPTH
12 0 45 90 135 180 225 270 315 0 45 90 135 180 225 270 315 LOAD 3001 3002 3003 3004 3005 3006 3007 3008 4001 4002 4003 4004 4005 4006 4007 4008
1 100 200
300 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05
400 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05
2 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 3 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 4 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 5 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 6 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05
301 1.00
302 1.00
303 1.00
304 1.00
305 1.00
306 1.00
307 1.00
308 1.00
401 1.00
402 1.00
403 1.00
404 1.00
405 1.00
406 1.00
407 1.00
408 1.00
LOAD COMBINATION - STORM OPERATING
MININUM DEPTH MAXIMUM DEPTH