Detail engineering design for main process area for Train 1 and 2 in Tangguh LNG Plant Project in Papua - Indonesia. It consist of Reinforced Concrete Piperacks and Steel Structures. The structural analysis used StaadPro

1. Tangguh LNG Project
Tanah Merah, Papua, Indonesia
Tangguh LNG Project
Tanah Merah, Papua, Indonesia
 Objective:
 To develop detail engineering design of 2
identical process train area in Tangguh
LNG Project that consist of mainly
concrete structure with secondary steel
member
 Tools:
 Staadpro
 PDS – 3D Modeller
 Autocad
 X-Steel
 Microsoft Excel
 Manpower:
 1 Lead Structural Engineer
 7 Structural Engineers
 10 Structural Designers
 Duration: 14 Months (For Engineering)
Tanah Merah

2. Tangguh LNG ProjectTangguh LNG Project

3. Process Train Area & Utility Area
Plot Plan
Process Train Area & Utility Area
Plot Plan

4. Tangguh LNG ProjectTangguh LNG Project
 Applicable Codes, Standards and Specifications
 ACI 318 - 99 - American Concrete Institute
 AISC 9th Edition (ASD) - American Institute of Steel Construction
 UBC 97 - Uniform Building Code
 ASTM - American Society for Testing and Materials
 JIS - Japan Industrial Standard

5. Material SpecificationMaterial Specification
 Concrete
The minimum compressive cylinder strength of concrete at
28 days shall be specified for each type of structures as
follows:
35Mpa: for LNG tank foundation
28Mpa: for all structural concrete
10Mpa: for Lean and Leveling concrete
 Steel Reinforcement
Reinforcement bar Material fy (MPa)
JIS G3112 SD390 390 MPaDeformed bar
ASTM A615 Gr60
SNI-07-2052-2002 Grade BJTD50
420 MPa
JIS G3112 SR235 235 MPaPlain round bar
ASTM A615 Gr40 280 MPa
Welded Wire Fabric ASTM A185 420 MPa

6. Tangguh LNG ProjectTangguh LNG Project
 Structural Description:
 1 RC Main Pipe Rack
(Size: 238 x 33 x 14.5 meter)
 2 Steel Compressor Shelters
(Size 48.5 x 18 x 27.4 meter)
 4 RC Pipe Racks
 4 RC Equipment Support Platforms
 2 Steel Bridges
 4 Steel Access Platforms at Marine Area RC Main Pipe Rack (8 Nos)

7. RC MAIN PIPE RACKRC MAIN PIPE RACK

8. RC MAIN PIPE RACKRC MAIN PIPE RACK

9. RC MAIN PIPE RACKRC MAIN PIPE RACK

10. RC MAIN PIPE RACKRC MAIN PIPE RACK

11. MAIN PIPE RACK PILE FOUNDATIONMAIN PIPE RACK PILE FOUNDATION

12. Steel Compressor ShelterSteel Compressor Shelter

13. Steel Compressor ShelterSteel Compressor Shelter

14. Equipment Support PlatformEquipment Support Platform

15. Equipment Support PlatformEquipment Support Platform

16. Process Train 1 (06 June 07)Process Train 1 (06 June 07)

17.  Analysis Conducted :
RC Design
Steel Structure Design
Seismic Analysis
Steel Connection Design
RC Capacity Design
Tangguh LNG ProjectTangguh LNG Project
 Loadings Considered :
Dead Load
Operation Load
Live Load
Test Load
Impact Load
Vibration Load
Thermal Force
Bundle Pulling Force
Vehicle Load
Fluid Surge
Soil and/or Water
Pressure
Wind Load
Earthquake Load

18. Tangguh LNG ProjectTangguh LNG Project
 Thermal Forces:
For beams supporting more than 4 pipes
10% of vertical load from all unfixed pipes and 5%
for whole structure design.
For beams supporting less than or equal to 4 pipes
Friction factor of 0.3 for steel to steel shall be used
and be applied to 2 heaviest pipe loads.
Thermal friction coefficient
The friction coefficient to be used for pipe supports,
sliding bearing, horizontal vessels or exchanger
should not exceed:
– Steel to concrete : 0.4
– Steel to steel : 0.3

19. T H E E N DT H E E N D