A Modulift spreader beam was used beneath the hook of the largest mobile crane manufactured in serial production in the world, at the Turcot Interchange — a three-level stack freeway project in the Montréal area.
The MOD 110H beam, which can lift up to 170 tonnes at 11.5 metres, was used at its maximum 18 metres in length, as the 1,200 tonne capacity Liebherr LTM 11200-9.1 was utilized with 59 metres of main boom and 201,984 kg of counterweight to lift the girder into position.
The crane was supplied by rental firm Guay Cranes and the rigging gear by Modulift’s Canadian distributor Equipment Corps.
The Turcot Interchange
The Turcot Interchange is a hub for road traffic in the Montréal area, interconnecting highways 15, 20 and 720, in addition to facilitating access to the Champlain Bridge. It is also an essential road link between Montreal-Pierre-Elliott Trudeau airport and downtown Montréal.
A crucial phase of the project was installation of two girders, weighing 90,718 kg apiece.
The LTM 11200-9.1 worked at a 29 metre radius, combined with a 300 tonne capacity Sany SCC8300 crawler crane, but not in tandem lift. Below the hook of the crawler crane, a custom beam lifted the second girder and, once connection to the other one was complete, both cranes could release the load simultaneously. Synthetic slings completed the rigs on both cranes.
“We frequently supply lifting and rigging gear to the project, but this was a standout lifting operation,” said Luke Habza, national sales and business development at Equipment Corps.
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“Combined with the MOD 110H beam, use of the Liebherr amounted to thousands of dollars of savings to the customer, who didn’t need to mobilize another crawler crane, as would be typical for this kind of application.”
The LTM 11200-9.1 was launched at bauma Munich in 2007. The crane delivers maximum load capacity and one of the longest telescopic booms in the world. The Y telescopic boom guying delivers significant increases in load capacity. The 9-axle chassis includes active, speed-dependent rear-axle steering developed by Liebherr.
“The LTM 11200-9.1 is the largest, strongest, telescopic mobile crane worldwide, which is manufactured in serial production,” said Wolfgang Beringer, sales promotion at Liebherr-Werk Ehingen GmbH. “In 2014, we celebrated delivery of the 50th unit, at which point the cranes were already in use all over the world. The LTM 11200-9.1 was delivered to Guay Cranes in 2011.”
Beringer explained the main advantage of a telescopic boom crane versus a lattice boom crane is set-up time, as the lattice sections have to be bolted on the ground. This requires more space compared to a telescopic crane. The transportation volume of a lattice boom crane is also bigger, he added.
The Turcot Interchange, Quebec’s largest and third busiest, was built in 1967 and the structures were nearing the end of their useful life. Construction of the $3 billion project is ongoing.