Sunday, December 5, 2010

April 12th, 2009

Donetsk Ukraine. A Tower crane collapsed while installed the "intermediate" section. It sounds as if the female crane operator was injured seriously and was taken to the hospital. Also, a nearby building was struck during the collapse.

The crane is clearly an older model. The jib is made of I beam construction and in my experience, you have to go back to the 70's to find this type of structure. But let's assume that it wasn't a structural failure. What are some of the other problems with cranes this old?

Do you have manufacturer support. The Kodiak Crane that went down in New York had no factory support and the weld repair was done poorly by someone unqualified. If you have an old Pecco crane whom do you call to find out the allowable deformation in a jib lacing on a 170? There are people whom know these things, but it's not like everyone can just pick up the phone and call the right person immediately like you would with a Potain. So problems get brushed over or ignored for years.

How about having a skilled and factory trained technician in charge of the crane erection? Is the technician 65 years old? How many of them are there? Is the technician on site working with the crane with second, third, or fourth hand training? How easily are mistakes made? It just doesn't seem like a good idea to be using cranes that could have structural problems hidden below 9 layers of paint. With a technician that may not have even been trained by someone with a factory background and does the manual even exist? How many old cranes have you been on where there isn't even a manual?

Link to Original story

баштовий кран аварії в Донецьку

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