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Lighter than air
Airships are set to return to our skies with projects planned across the world. Rhian Owen investigates why there is a new-found attraction of airships such as the Airlander in the UK, and how remote construction projects could benefit.
Low oil pressure
Persisting low oil prices have kept the rough terrain crane market soft in 2015 but competition in the larger machine space is rising with demand for these machines remaining strongest, Bernadette Ballantyne reports
Enercon uses Liebherr tower crane for 149m wind turbine
Enercon used a Liebherr 1000 EC-B 125 Litronic tower crane to erect a 149m wind turbine at an altitude of around 800m in the Prechtaler Schanze wind farm in the Black Forest.
Mammoet erects tallest gantry ever in Europe
One of the world’s largest gantry cranes has been erected at a port in Poland. The new 120m crane will be used for moving steel fabrications. Raising the crane was itself a major lifting challenge for contractor Mammoet.
New jib for Chernobyl crawler
A Manitowoc 2250 crane has been fitted with a new luffing jib to complete containment shelter work at the disused Chernobyl nuclear power plant in Ukraine.
Planning really matters
The Mecca crane accident in 2015 killed over 110 people, making it one of the worst such accidents in modern history. This February, an accident in New York killed one person and injured 15. These accidents, Paola De Pascali reports, highlight the importance of careful preparation for high winds when using crawlers.
Réunion road rolls ahead
A €1.7bn project to link St Denis, the capital of the French Indian Ocean department of Réunion, with the island’s port near La Possession, is getting well underway.
Western Europe projects round up
This month we review projects from Manchester, Netherlands, Poland, Italy.
Watching the weather
Crawler manufacturers and best practice guides recommend the use of well-placed anemometers as one element in keeping crawlers safe from high winds. Here, we round up some of the equipment on offer.
Getting it right
A recent job by ALE, using an LR 11350 working at height in an area where high winds are a risk, demonstrates the sort of planning needed for safe working in these conditions.
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Richard Marcotte, an instructor at ITI, argues that rigging skills are too often taught with specific trades in mind, rather than in their own right.
Jack up systems and strand jacks offer a powerful way to lift huge loads, yet are often easier to deploy than large cranes. Rhian Owen looks at recent projects that demonstrate the flexibility of these systems, and considers their limits and potential.
High winds pose a significant threat to all cranes. This month, Rhian Owen considers the risk to tower cranes, finds out how manufacturers design them to minimize risk, and asks what users should do to prepare for high winds. Next month, we look at the risks for crawler cranes.
Ten years of Vertikal Days
Vertikal Days celebrates its 10th anniversary in 2016. The UK show has built a strong reputation as a venue for crane buyers and sellers to meet.
Floating ballast cuts prefab costs
Precast Services, Inc, says that using a Manitowoc MLC300 with variable positioning counterweight, in place of a larger traditional crawler, may have saved it $100,000 on a car park construction job.
Evolution of safety
As crane control systems have become more sophisticated so have the remote controls that operate them, with ergonomics and display innovations a major focus.
Getting over the bust
In recent years the US construction sector has taken some big knocks, but as the economy recovers, new opportunities in rising sectors are driving construction in 2016 and beyond. Rhian Owen investigates what lessons crane providers have learnt from the struggling upstream oil and gas sector and how the shortage of labour has affected business.
The next generation
At this year’s Bauma, Kobelco will show the second generation of its CKE-G Series crawler cranes.
Under new ownership
PM Group’s stand at this year’s Bauma will be its first at the Munich show since being acquired by US crane manufacturer Manitex. As well as its own knuckleboom cranes, it will showcase products from Manitex, and from fellow recent Manitex Italian acquisition Valla.
In February 2003 Felix Weinstein wrote an article for Cranes Today, examining accident causes. In the 13 years since, many varied tower crane accidents occur. In this article he reviews some prominent causes of recent accidents.