Heerema has developed two large modular spreader bars, each with a lifting capacity of approximately 9,000 tonnes. Their modular design allows them to be reconfigured and reused across multiple offshore projects. Spreader bars are used in offshore lifting operations to distribute loads within rigging systems, maintain the required sling geometry and provide clearance for sling paths.
Offshore projects often require spreader bars of different lengths and configurations to accommodate the dimensions, lifting points, weight distributions and sling angles of individual structures. Equipment used to lift converter stations, jackets, bridge sections, topsides and flare structures may therefore need to be designed or modified for specific projects.
Although this approach can meet individual project requirements, it may involve additional fabrication, engineering, transport and steel consumption when lifting requirements change. In some cases, equipment must be modified or returned to shore before it can be reused.
Heerema's modular design uses interchangeable sections that can be added, removed or rearranged to suit different lifting configurations. This allows the same equipment to be adapted for a range of operations and reused on subsequent projects, rather than being tailored to a single application.
The engineering design includes modular connections intended to maintain the strength and stiffness required for heavy lifting offshore. The assembled spreader bar functions as a single engineered structure while retaining the flexibility to change its configuration.
Heerema's modular spreader bars have already been deployed across five offshore campaigns and 7 lifts in total.
