Looking at the design, I’ve never seen anything like it. It’s a large concrete footing on top of four concrete pillars. At first my thought was that that they were trying to make it easier to finish the building at the end of the job. Normally you would pull the tower sections out, then go back and fill in the 3×3 meter holes in the floors that allowed the crane through. But if you had four concrete pillars close together like that, what could you put in that area of the building?
The process ended up taking a total of 15 8 hour days to assemble. The crane was brand new and out of the box. If you’ve ever assembled a brand new crane, you know how many parts we are talking about and the time to locate each bolt and washer. It’s IKEA on steroids and from Hell.
A tower crane collapsed killing it’s 24 year old crane operator. The story notes that one person on site is already blaming the height of the crane, the length of the jib, and the soft soils. One part of the picture supports him quite well.
A mobile crane removing a concrete bridge girder goes over due to soils sluffing off down a hill. The soils are non-native and even though they used matting, you should have some sort of reinforcement to prevent the soils from moving when on a hill like this. (Click on picture to view video.)
A Wolffkran Tower Crane collapsed and appears to have been on a cross base that was surrounded by water.
It’s only a little crane related, but a father makes some fun pancakes for his daughter and made this one of a crane. http://www.jimspancakes.com/
The story describes the collapse of the boom. The included picture shows a turntable that separated from the mast. You can see the pin holes with no pins in place. I’m wondering where they are.
A tower crane collapsed on the Revel Casino project during high winds. The cranes on the project appear to be Potain 485′s. As of November there were six on site and it is’t clear as to how many are currently on site.
A truck lost control in Pretoria South Africa hitting a tower crane on the side of the highway. It was knocked out of plumb, it’s base damaged, but it still stood.
The accident happened at about 4:10 p.m. when the 30-tonne tower crane fell from the 50th floor of Taishang Building in Dongguan city. The crane broke through three stories in the basement and finally landed, a municipal government spokesman said.
