HEAVY LIFTING Ӏ SECTOR REPORT
bearing pressure equal to 10 tonnes per square metre.” In this configuration the SPMT can be used with either a three- point hydraulic suspension or with four-points if a higher level of stability is required. Fagioli, of course, is Italian.
Enerpac’s gantry, as we said, was destined for Australia. And the hotel move was in China. The trend for heavier moving is worldwide.
BRIDGE BUILDS Engineered Rigging (ER), a company based in Indiana, USA, provides heavy lifting and trailer equipment rental and sales, as well as contract consulting and in-house design and build services. In a public statement ER references report data released in December 2022 by the US Census Bureau according to which the seasonally adjusted annual rate
(SAAR) of construction spending across public and private sectors in the US has been on the rise since 2019 and currently stands at $1,800 billion dollars. ER describes this figure as ‘whopping’. The company’s projects for the year reflect the boom, and it says demand for its heavy lifting equipment rental and sales is reaching an all-time high. ER’s most popular
Enerpac JS-250 for bridge deck installation by Aertssen Cranes The two JS-250 lifting beams were
Antwerp based, Aertssen Cranes has completed the installation a new railway bridge for Eiffage Génie Civil in Laudun L'Ardoise near Avignon, France, using an Enerpac JS-250 jack-up system to raise the 220-tonne bridge deck for SPMT installation. The stability of the jack-up lifting system enabled bridge installation preparations to continue uninterrupted even during high winds. Measuring 24.80 metres long and 4.80
metres wide, the bridge deck was assembled on site resting on two header beams. Working at ground level rather than at height ensured a safer working environment. Aertssen Cranes was tasked with fi rst positioning two abutments, each weighing 350 tonnes, and then installing the bridge deck, over a weekend. The tight timing and compact construction site made the JS-250 jack-up system the most effi cient lifting system.
connected to the header beams supporting the bridge deck by round synthetic rope slings. It was then raised to 10m, raising up the bridge deck to 7.8m. A SPMT equipped with climbing jacks was positioned under the bridge deck. After lowering onto the SPMT, the deck was transported and installed on the abutments. “The JS-250 jack-up system's small
footprint makes it advantageous for use in a confi ned construction site like we had here,” said Manuel Aertssen, business development manager, Aertssen Group. “At the request of the main contractor we needed to execute a test lift of all our equipment 48 hours before the fi nal installation with SPMTs. Due to high winds, we were able to lower the bridge deck to a safer height without losing valuable time during the fi nal installation preparations.”
The stability of the JS-250 jack-up
lifting system enabled bridge installation preparations to continue uninterrupted even during high winds that would not be acceptable, and cause delays, when using traditional lifting methods with cranes. The Enerpac JS-Series jack-up system
is a multi-point lifting system comprising four jack-up towers, one positioned under each corner of a load. The lifting frame of each jack-up tower contains four hydraulic cylinders, which lift and stack steel barrels. The load is lifted in increments as barrels are inserted via an automated system and stacked, forming the lifting towers. Managed by a single operator, each tower’s lifting and lowering operations occur simultaneously, while the jack-up’s synchronous technology maintains the balance of the load.
42 CRANES TODAY
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