1CRYOGENIC TANKS

CRYOGENICTANKSLNG / LPG TANK CONSTRUCTION

CRYOGENIC TANK POST-TENSIONING SPECIALISTS

LNG / LPG CONTAINMENT STRUCTURES

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3CRYOGENIC TANKS

LNG / LPG TANK SPECIALISTS

LNG is a natural gas that has been condensed to a liquid for ease of storage and transport. The phase change is achieved by cooling the gas to below -162 oC, which is below the boiling point. Under these conditions, minimal permeability and structural resilience are critical - which makes post-tensioned concrete tanks ideally suited as a structural system and ‘secondary’ containment skin.

SRG has been designing and installing post-tensioning for cryogenic containment structures since 1982. Our innovative design, advanced construction techniques, effective project management skills and previous track record of projects make SRG a leader in post-tensioning for LNG / LPG structures. Our proven track record and experience in LNG / LPG projects, as well as our focus on safety, quality and environment ensures SRG are the right team for the project.

EXPERIENCE

SRG has delivered over twenty cryogenic tanks and more than sixty combined with the BBR Network worldwide.

EXCELLENCE

SRG highly value the relationships we build with our clients and we seek to deliver first class results to all of our projects. The repeat business we

receive is a testament to the value, performance and quality we deliver.

ANYWHERE, ANYTIME, ANY TASK

SRG are well equipped to undertake projects wherever the location and have dedicated international project management teams who are highly skilled and have successfully delivered large civil projects in many remote locations throughout the world.

GLOBAL NETWORK OF EXPERTS

SRG are the sole franchisee of the BBR licensed post-tensioning and cable stay systems in the countries where we operate, including world class cryogenic technology.

BBR, founded in Zürich Switzerland 70 years ago, is recognised as the leading group of specialist engineering contractors in the field of post-tensioning, stay cable and related construction engineering. BBR are now present in over 50 countries in the world.

Through the BBR Network we can supplement our own local team in order to provide additional skills for each project and we can provide a comprehensive service for all facets of projects tailored to the client’s needs. It is our intent to utilise the skills within the group to deliver the project whatever scope of works are entrusted to us.

SAFETY, QUALITY, ENVIRONMENT

Safety, Quality and the Environment are paramount to SRG. We believe that responsible health and safety management and superior performance is integral to an efficient and successful project.

Being a customer focused organisation with an intense desire to be the best in our field, SRG operates and complies with the requirements of the following Quality Management, Environmental Management and Occupational Health & Safety Management Systems.

Occupational Health & Safety Management System

AS/NZS 4801:2001

OHSAS 18001

Quality Management System

ISO 9001:2008

Environmental Management System

AS/NZS ISO 14001:2004

SRG has also Federal Safety Commission accreditation.

SRG is a well established professional engineering and

contracting operation with over 55 years’ experience.

We are currently operating from offices throughout

Australia as well as Hong Kong and the Middle East.

Large above ground storage facilities, including LNG /

LPG tanks, almost exclusively use post-tensioning as

the basis of their structure.

LNG / LPG CONTAINMENT STRUCTURES

Post-tensioning increases structural resilience while allowing reduced wall thickness and reducing crack widths. Minimal permeability and high levels of corrosion protection are also required for all LNG / LPG structures. The post-tensioning system must therefore be designed and installed under strict quality controls, with materials and processes meeting specific certification and performance requirements.

SRG is used to operating in such environments where unique and tailored solutions are required to meet strict client, regulatory and construction demands.

Design and construction of each LNG / LPG tank is unique. The post-tensioning systems are generally run both horizontally and vertically to meet the requirements of the design.

CONA CMI FOR CRYOGENIC APPLICATIONS

Design and construction of large LNG / LPG tanks which are often near 90m in diameter and 50m in height involves significant design loads and often congested and unique detailing. The CONA CMI system has been continually improved over many years to meet such requirements, which is why it is the best choice for LNG / LPG projects.

The unique BBR VT CONA CMI post-tensioning kit is a multi strand system with sizes available from 1 to 73 seven-wire pre-stressing strands.

End anchorages of the tendons is available as either a standard square bearing plate, the CONA CMI SP anchorage, or via the proprietary CONA CMI BT Bearing Trumplate. The CONA CMI BT anchorage is available

for sizes from 2 to 73 strands; it makes use of a three plane load transfer, which significantly reduces the peak bursting stresses, allowing for reduced centre and edge distances as well as lower minimum concrete strengths at transfer.

Vertical post-tensioning can be achieved through single tendons starting at the top of the tank and terminating in a socket at the base, or more commonly through the use of the BBR Loop Tendon detail.

BBR Loop Tendons have been developed for use in the LNG industry as an alternative to straight tendons as a result of experience from a number of projects where reinforcing congestion was a challenge.

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LOOP TENDON PT TECHNOLGOY

Loop tendons are often used when there is no access to the dead end - for example for vertical post-tensioning in tanks and silos. In this scenario, the straight part of the tendon is inside the concrete wall and the loop is in the base of the tank. Whilst termination of PT strands at the base of a tank is not impossible, the reinforcing steel is usually already congested in this area and therefore adding a PT strand termination here can be problematic. Use of the Loop Tendon system reduces congestion at the base of the tank and allows anchorage and stressing detailing to be minimised to the top of the tank. Minimum radii of curvatures of up to 0.7m are achievable, which is considerably less than the minimum bending radius of a normal prestressing strand. Due to the reduced radius of curvature, the contact pressure between the strands and the duct becomes very high, P

R,max> 800 kN/m. For the straight

part of the tendon, corrugated steel or plastic ducts can be used, whereas a smooth steel duct is selected for the curved portion in order to dissipate the high contact pressures. For ease of installation, the degree of filling chosen for the curved part of the tendon should be very low.

5CRYOGENIC TANKS

COMPLIANT WITH FIP & ETAG TESTING UNDER CRYOGENIC CONDITIONS

The delivery note accompanying components of the BBR VT CONA CMI BT Post-Tensioning System will contain the CE marking.

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PT Specialist Company

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Assembly and installation of BBR VT CONA CMI BT tendons must only be carried out by qualified BBR PT Specialist Companies. Find the local BBR PT Specialist Company by visiting the BBR Network website www.bbrnetwork.com.

European Organisation for Technical Approvals

ETAG 013 Guideline for European Technical Approval of Post-Tensioning Kits for Prestressing of Structures

CWA 14646Requirements for the installation of post-tensioning kits for prestressing of structures and qualification of the specialist company and its personnel

BBR E-Trace is the trading and quality assurance platform of the BBR Network linking the Holder of Approval, BBR VT International Ltd, BBR PT Specialist Companies and the BBR Manufacturing plant. Along with the established BBR Factory Production Control, BBR E-Trace provides effective supply chain management including installation, delivery notes and highest quality standards, as well as full traceability of components.

Image courtesy of BBR VT International Ltd

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PROJECT STATISTICS - CRYOGENIC TANKS BY SRG

PROJECT LOCATION NO. OF

TANKS

CONTENTS CAPACITY (m3)

DIAMETER (m)

HEIGHT (m)

WALL THICKNESS

(mm)

TENDON DETAILS

GASCO LPG Storage Tanks

UAE 6 3x Butane 3x Propane

110,000 68.60 35.63 500/800 • 18/19 x 15.7mm dia strands per cable

• 624 x 112m long BBR CONA CMI tendons

• Total 1675 tonnes of 15.7mm strand

GASCO LPG Storage Tanks

UAE 4 2x Butane 2x Propane

86,300 60.00 34.00 500 • 18/19 x 15.2mm dia strands per cable

• 336 x 95m long horizontal 1906 BBR Cona Compact tendons

ADNOC Borouge Ethylene Tank

UAE 2 Ethylene 29,000 37.00 27.00 500/800 • 19 x 12.7mm dia strands per cable

• 60m long vertical loop tendons

• 20m long horizontal loop tendons

Borouge 2 Propylene Tank

UAE 1 Propylene 23,000 37.90 32.05 500/800 • 32 x full circumference loop tendons

• 90 tonnes of 15.2mm dia strand

Borouge 3 Ethylene Storage Tank

UAE 1 Ethylene 21,600 34.00 29.78 500/900 • 22x 1906 BBR CONA Compact tendons

Takreer Project Refinery Expansion

UAE 3 Propylene 50,000 52.00 31.80 500/900 • 510 tonnes of 15.7mm dia strand

• 34 x 1906 CMI horizontal loop tendons

• 67 x 406 CMI vertical ‘U’ shaped tendons

Darwin LNG Tank

Australia 1 LNG 188,000 94.00 47.00 550 • 172 vertical tendons comprising 15.2mm EHT strands

• 114 horizontal tendons comprising 19 to 22 x 15.77mm Euro strands

North West Shelf LPG Tank

Australia 1 LPG 65,000 53.00 32.00 • Horizontal BBR CONA Compact cables

North West Shelf LPG Tank

Australia 1 LPG 81,000 60.00 31.00 • Horizontal BBR CONA Compact cables

South Hook Tanks

Wales 5 LNG 155,000 92.00 35.00 700 • 660 x 145m long horizontal cables comprising 19 x 15.7mm strands

• 440 x 70m long vertical cables comprising 12 x 15.7mm strands

7CRYOGENIC TANKS

CRYOGENIC TANKS BY THE BBR NETWORK

# YEAR NAME REGION CAPACITY (m3) DIAMETER (m) HEIGHT (m)

1 1981 Dow Chemical Tank 1 Europe 62,000 50 45

2 1981 Dow Chemical Tank 2 Europe 62,000 50 45

3 1981 Eurogas Terminal Tank 1 Europe 62,000 50 45

4 1981 Eurogas Terminal Tank 2 Europe 62,000 50 45

5 1982 Botany Bay LPG Tank 1 Pacific 19,000 34 24

6 1982 Botany Bay LPG Tank 2 Pacific 19,000 34 24

7 1982 Oxirane Tank 1 Europe 10,500 25 30

8 1982 Oxirane Tank 2 Europe 10,500 25 30

9 1984 Low Temperature Tank 1 Kaarstoe Europe 20,000 39 30

10 1984 Low Temperature Tank 2 Kaarstoe Europe 20,000 39 30

11 1984 Low Temperature Tank 3 Kaarstoe Europe 20,000 39 30

12 1984 Low Temperature Tank 4 Kaarstoe Europe 20,000 39 30

13 1986 Du Pont Tank 1 Europe 5,500 20 25

14 1987 Kwinana LPG Tank 1 Pacific 26,000 35 30

15 1987 Kwinana LPG Tank 2 Pacific 26,000 35 30

16 1987 Kwinana LPG Tank 3 Pacific 26,000 35 30

17 1989 Du Pont Tank 1 Europe 5,500 20 25

18 1989 Du Pont Tank 2 Europe 5,500 20 25

19 1990 Low Temperature Tank 5 Kaarstoe Europe 8,000 25 30

20 1990 Low Temperature Tank 6 Kaarstoe Europe 8,000 25 30

21 1990 Arco Butane Storage Tank Europe 62,000 50 45

22 1995 North West Shelf Gas Project Tank 1 Pacific 65,000 53 32

23 1996 North West Shelf Gas Project Tank 2 Pacific 81,000 60 31

24 1997 Shell Tank T-0208 Europe 10,000 25 31

25 2001 ADNOC Barouge LNG Tank 1 Middle East 29,000 37 27

26 2001 ADNOC Barouge LNG Tank 2 Middle East 29,000 37 27

27 2004 LNG Tanks in Barcelona 5 Europe 150,000 82 50

28 2006 LNG Tanks in Barcelona 6 Europe 150,000 82 50

29 2006 Darwin LNG Tank Pacific 188,000 92 35

30 2007 South Hook LNG Tank 1 Europe 155,000 92 35

31 2007 South Hook LNG Tank 2 Europe 155,000 92 35

32 2007 Adriatic LNG Terminal Tank 1 Europe 125,000 88 47

33 2007 Adriatic LNG Terminal Tank 2 Europe 125,000 88 47

34 2008 Gasco LPG Tank 1 Middle East 96,000 63 34

35 2008 Gasco LPG Tank 2 Middle East 96,000 63 34

36 2008 Gasco LPG Tank 3 Middle East 96,000 63 34

37 2008 Gasco LPG Tank 4 Middle East 96,000 63 34

38 2008 LNG Tank Cartagena Europe 150,000 78 40

39 2009 South Hook LNG Tank 3 Europe 155,000 92 35

40 2009 South Hook LNG Tank 4 Europe 155,000 92 35

41 2009 South Hook LNG Tank 5 Europe 155,000 92 35

42 2009 Barouge 2, Propylene Storage Tank Middle East 23,000 38 32

43 2010 LNG Tanks in Barcelona Tank 7 Europe 150,000 82 50

44 2010 LNG Tanks in Barcelona Tank 8 Europe 150,000 82 50

45 2010 LNG Tank Risavika Europe 30,000 49 29

46 2011 Tank INEOS Europe 57,000 49 43

47 2012 Ruwais Train LPG Storage Tank 1 Middle East 75,000 67 36

48 2012 Ruwais Train LPG Storage Tank 2 Middle East 75,000 67 36

49 2012 Ruwais Train LPG Storage Tank 3 Middle East 75,000 67 36

50 2012 Ruwais Train LPG Storage Tank 4 Middle East 75,000 67 36

51 2012 Ruwais Train LPG Storage Tank 5 Middle East 75,000 67 36

52 2012 Ruwais Train LPG Storage Tank 6 Middle East 75,000 67 36

53 2012 LNG Tanks Gijon Tank 1 Europe 150,000 80 40

54 2012 LNG Tanks Gijon Tank 2 Europe 150,000 80 40

55 2013 Ruwais Refinery Expansion Tank 1 Middle East 50,000 52 32

56 2013 Ruwais Refinery Expansion Tank 2 Middle East 50,000 52 32

57 2013 Ruwais Refinery Expansion Tank 3 Middle East 50,000 52 32

58 2013 Barouge 3 - Ethylene Storage Tank 1 Middle East 21,000 34 30

59 2014 Rafnes Ethane Tank Europe 30,000 45 32

60 2016 LNG Tank Pori Europe 30,000 42 35

61 2016 Ethane Tank, Stenungsund Europe 50,000 59 26

ABOUTUS We are an Australian complex services company. We solve the challenging and difficult problems that others can’t. Our vision is to make the complex simple for our customers.

We have people working across Australia and the world bringing our unique blend of innovation, precision, technical excellence and safety to every project we touch.

Since 1961, we have worked on many of the iconic stadiums, skyscrapers, bridges, dams, structures and mining projects, both here in Australia, and overseas.

That’s because we’re not afraid to challenge what is considered possible.

SRGLIMITED.COM.AU

CALL 1300 775 477 +61 8 9267 5400

GET TO KNOW US AT SRGLIMITED.COM.AU

AUSTRALIA / AFRICA / MIDDLE EAST / ASIA PACIFIC / HONG KONG

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