HEAVY LIFTING Ӏ SECTOR REPORT
equipment rental in 2022 was
its Enerpac strand jack system which has load capacities of up to 1,405 tons per jack.
Among other applications, the
system has been leveraged in: an airport project in Louisville, Kentucky; the demolition of the Wittpenn Bridge in New Jersey; the dismantling of port cranes in Portsmouth, Virginia; the construction of the McClugage Bridge in Peoria, Illinois; and the launching of the tallest bridge in Kentucky: the Pond Creek Bridge on US460 in Pike County.
HEAVY LIFT TOWER CRANES In Australia, Marr Contracting designs and delivers heavy lift luffing tower cranes and services. It was recently awarded a subcontract for its specialised
44 CRANES TODAY
Marr’s M2480D
heavy lifting luffing tower crane in the middle of the Brisbane River
heavy lifting crane services on the Kangaroo Point Green Bridge over the Brisbane river. The 460-metre bridge will be among the longest cable-stay pedestrian bridges in the world and is expected to become a must-visit destination in Brisbane. A key challenge has been how
to construct the bridge mast while minimising potential impacts on the many public ferries and private vessels that use the river daily. Marr’s experience working on
the construction of the 318-metre towers on Turkey’s 1915 Çanakkale Bridge, Perth’s signature Matagarup Bridge, and Dubai’s landmark Water Canal Bridges provided a reference frame for the challenges of constructing the 83-metre-tall mast of the bridge. The company was engaged
early in the design phase to develop a lifting strategy that supported the preferred construction methodology. After comparing barge crane and tower crane options, the design team confirmed that Marr’s M2480D Heavy Lift Luffing (HLL) tower crane was the most suitable crane in the Australian market capable of lifting the fully assembled mast head. The crane, with a 64-metre- long boom, was installed on a platform in the middle of Brisbane River. The heaviest lift it will undertake for the project will be the 28-metre-tall prefabricated steel masthead at 180 tonnes. “Reaping the benefits of modularised construction, with fewer but heavier lifts, is helping to deliver a safer, more productive
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