LOADHANDLING

CONSTRUCTION AND CIVIL CONTRACTING

LOADHANDLING

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SLIDING 16M SIDEWAYS THE1,840 TONNE RINGWOODRAIL BRIDGE INVICTORIA.

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LOAD HANDLING SPECIALISTS

At SRG, we provide a complete load handling service. We maintain experienced teams of personnel available to assist in all aspects of construction including design, planning, programming and construction techniques relating to the load handling, incremental launching and heavy lifting methods.

SRG has extensive experience in the field of load handling. We can provide all of the required services to resolve your project challenges.

SRG is well equipped to undertake projects wherever the location. Our proven track record and experience in civil and industrial projects, as well as our focus on safety, quality and the environment ensures SRG’s teams are the right people for the job.

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.

SAFETY, QUALITY, ENVIRONMENT

Safety, Quality and the Environment are paramount to SRG. We believe that responsible health and safety management as well as superior health and safety 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.

SERVICES

Heavy Lifting

Load Handling

Incremental Launching

SRG is a well established professional engineering and

contracting operation with over 50 years experience.

We are currently operating from offices throughout

Australia as well as Hong Kong and the Middle East.

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 gained Federal Safety Commission accreditation.

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Typically, such works will involve one or more of cable-based lifting, bar-based lifting and hydraulic jacking.

All of our lifting projects have the same number one priority - safety. Our track record of successful lifts is second to none. We pride ourselves on our quality execution from initial concept right through to on-site works and project completion.

The closer to the ground that large elements can be constructed reduces the critical risk to workers of working at heights.

There is no real limit to the size of the load that can be lifted. Successfully relocating a fragile, single-piece structure weighing 2,000 tonnes - we like to think that “the sky is the limit!”

Heavy lifting services available include:

�� Engineering design or review

�� Hydraulic-jack lifting systems

�� Threaded-bar lifting systems

�� High-tensile strand lifting systems

Heavy lifting could be defined as the erection or

relocation of any significant structure without

the use of craneage.

HEAVYLIFTING

Heavy lifting services for the erection of a Prilling Skirt as part of the construction of a new Ammonium Nitrate plant in Moranbah, Queensland. 150t lift to 70m.

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Construction procedures involving load handling systems often result in considerable savings as compared to conventional building methods using traditional scaffold for casting concrete or installing steel structural elements in place.

The application of load handling systems requires full consideration at the structural design stage, well in advance of detailing or construction planning. Selecting and designing the necessary temporary works and choosing the related equipment must be performed as early as possible.

SRG has extensive experience in the field of load handling and can provide all of the required services for design as well as supply and operation of equipment.

Typical application of SRG load handling include:

�� Lifting, lowering and shifting of heavy loads Precast beams, entire bridges, roofs, floors and other structural elements built on site or at the factory are lifted in place by means of bars, strands or wire cables and hydraulic jacks.

�� Rotating bridges Structures built with formwork in a convenient position can be rotated after completion into the final position.

�� Working platforms Typically on a large projects or where access is challenging, working platforms can be manipulated into position using our load handling techniques.

�� Installation of large tendons In the case of long and heavy tendons, special equipment is required for handling and installation.

�� Cable-stayed falsework The truss for building the structure is supported by stay cables replacing expensive temporary supports. Lifting equipment for handling heavy loads is attached to the auxiliary tower required for anchoring the stay and backstay cables.

Shifting the lower seating stands at Stadium Australia closer to the action using a pair of 145 tonne 1.4m stroke jacks.

Load handling relates to the shifting, sliding, lifting

or lowering of heavy loads using jacking equipment

instead of cranes.

LOADHANDLING

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This method is a very useful means of constructing a bridge over an active road, rail corridor or water.

Bridges are cast in segments behind an abutment under controlled conditions. As a result, high concrete quality and precise dimensions are assured. Reinforcement crosses each joint in addition to the bonded prestressing tendons as each new segment is cast directly against the already cured one in front.

The concentric prestress required during launching guarantees an excellent, relatively maintenance free performance of the bridge during its lifetime.

By avoiding costly and time consuming false work, and by concentrating all construction activities in the small fabrication area, considerable savings in cost and time compared with conventional bridge construction are achieved.

The main characteristics of the incremental launching method are:

�� Production of a continuous, site cast concrete superstructure.

�� Casting in long sections in a stationary, multiple use form behind an abutment.

�� After longitudinal shifting (launching) of a completed

section along the bridge axis, the next section is cast against the previous one and they are stressed together.

�� In this sequence the overall superstructure grows by adding new sections, step-by-step as the progressively completed girder is launched.

�� Temporary sliding bearings and guides at each pier facilitate the steady travel of the structure.

�� A steel launching nose at the front, sliding bearings, and a casting bay behind the abutment.

Some preferred requirements are:

�� The girders should have a constant curvature in horizontal and vertical alignment.

�� The section should be continuous over the whole bridge with preferably a constant depth.

�� Span typically limited to 50-60 metres.

�� Span / depth ratios are in the range of 14 to 18.

The 665m long Mount Henry Bridge in Perth, Western Australia.

The incremental launching method combines

the advantages of precast segmental construction

with those of cast insitu methods.

INCREMENTALLAUNCHING

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Lawrence Hargrave Drive (Seacliffe) Bridge in New South Wales.

Chota Motala Bridge is Pietermaritzburg, South Africa.

World’s third longest incremental launch, 1124m. Seaford Rail Extension, Adelaide, South Australia.

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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 mining and infrastructure 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