How are tower cranes erected?

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Offline DoctorBeaver

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How are tower cranes erected?
« on: 12/03/2009 14:56:15 »
This is a tower crane



Nice,eh? It's being delivered to Neil next Tuesday.  [:P]

But how will they erect it? Will Sheepie have to wear his high heels and put his finger on the join?
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Offline Don_1

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How are tower cranes erected?
« Reply #1 on: 12/03/2009 15:12:18 »
Erm, perhaps they use a crane to put it together.

Smart thinking eh!
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Offline DoctorBeaver

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How are tower cranes erected?
« Reply #2 on: 12/03/2009 15:21:19 »
Erm, perhaps they use a crane to put it together.

Smart thinking eh!

I can't think of another way. So do they have 2 cranes side-by-side to start with each gradually building the other higher?
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Offline Karsten

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How are tower cranes erected?
« Reply #3 on: 12/03/2009 15:42:30 »
I believe such a crane has the ability to lift itself a certain distance so that a new segment can be added. Then the process is repeated.
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Offline Don_1

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How are tower cranes erected?
« Reply #4 on: 12/03/2009 15:53:37 »
Self erecting cranes do the whole thing themselves. (hmmm logical)

With other cranes, a mobile crane is used to lift the sections into place.
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Offline DoctorBeaver

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How are tower cranes erected?
« Reply #5 on: 12/03/2009 16:40:35 »
Self erecting cranes do the whole thing themselves.

Sounds painful
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Offline DoctorBeaver

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How are tower cranes erected?
« Reply #6 on: 12/03/2009 16:41:00 »
Thank you, Karsten & Don
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lyner

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How are tower cranes erected?
« Reply #7 on: 12/03/2009 16:42:02 »
Self erecting cranes do the whole thing themselves.

Sounds painful
Sound fun, actually.

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Offline DoctorBeaver

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How are tower cranes erected?
« Reply #8 on: 12/03/2009 16:43:10 »
Self erecting cranes do the whole thing themselves.

Sounds painful
Sound fun, actually.

I'm starting to worry about you.
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lyner

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How are tower cranes erected?
« Reply #9 on: 12/03/2009 17:42:28 »
Don't go all Mumsy on me now.

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lyner

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How are tower cranes erected?
« Reply #10 on: 12/03/2009 17:48:23 »
The actual problem is not a hard one to solve. All you need to do is to have a long 'builder' section strapped to the side of the tower you want to build.  You haul up the builder section so that it sticks up beyond the top by the height of a tower section. You then haul up the next tower section, using the builder section, and bolt it in place. For the following section you just haul up the builder section another stage and repeat the process. When you've finished, you lower the builder section to the ground. Finally you assemble the jib around the tower and haul that  up to the top.

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Offline DoctorBeaver

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How are tower cranes erected?
« Reply #11 on: 12/03/2009 17:52:35 »
You make it sound so simple I feel silly for having asked
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Offline Bored chemist

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How are tower cranes erected?
« Reply #12 on: 12/03/2009 18:59:04 »
I bet you don't feel nearly as silly as all the people who build tower cranes using another (telescopic) crane.
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lyner

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How are tower cranes erected?
« Reply #13 on: 12/03/2009 19:19:15 »
It's probably a lot quicker with another crane to help you - but more expensive. A mobile crane costs at least 1k for a morning's hire.

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Offline Don_1

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How are tower cranes erected?
« Reply #14 on: 12/03/2009 23:54:42 »
If brains were made of dynamite, I wouldn't have enough to blow my nose.

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Offline DoctorBeaver

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How are tower cranes erected?
« Reply #15 on: 13/03/2009 04:39:17 »
That was quick! Thank you Don.
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lyner

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How are tower cranes erected?
« Reply #16 on: 15/03/2009 00:11:46 »
I've seen some erections in my time but that beats them all.

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Offline Chemistry4me

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How are tower cranes erected?
« Reply #17 on: 15/03/2009 00:18:36 »
Now that was quick!

I've seen some erections in my time but that beats them all.

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Offline yor_on

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How are tower cranes erected?
« Reply #18 on: 15/03/2009 21:41:51 »
Isn't that how cranes live on.
Being erectile at the right place and moment.

Why should 'tower cranes' be different?
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