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| Which came first the Chiken or the egg? |
| Chicken o_o |
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25% |
[ 2 ] |
| Egg o_o |
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12% |
[ 1 ] |
| You spelt chicken wrong >_> |
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62% |
[ 5 ] |
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| Total Votes : 8 |
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 Posted: Sat Feb 07, 2009 7:10 pm
lol I was being driven back by my boyfriend and he asks me "How are cranes put up so quickly if they have to be the taller then the building they are building."
I thought about it and said "I don't' know, maybe they assemble them and put it together."
"Or a crane puts up a crane"
"So where did that crane come from?"
"Another crane."
"So its like a chicken and an egg?"
"Exactly."
And at that point i looked at him. "So you're saying a crane assembled the egg for the chicken." And he called me crazy =_=
So! lol How are cranes put up xD
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Posted: Sat Feb 07, 2009 7:13 pm
I thought they made craned OUTSIDE of the building. Or assembled them outside of the building...
And with machines that aren't cranes but do the same basic thing.
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Posted: Sat Feb 07, 2009 8:04 pm
I've never seen them built o_o Ever o_o
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Posted: Sun Feb 08, 2009 8:27 am
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Posted: Sun Feb 08, 2009 12:35 pm
They find a truck that can carry the weight of the crane, and bring it to the job site. And they make sure it's bigger then the building. Might bring it in part though.
^^;; At least I think so anyway.
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Posted: Mon Feb 09, 2009 9:37 am
1. parts of the crane are loaded onto the flatbeds that is transporting the equipment to the site.
Oh here- just read this:
The tower crane is a modern form of balance crane. Fixed to the ground (and sometimes attached to the sides of structures as well), tower cranes often give the best combination of height and lifting capacity and are used in the construction of tall buildings.
The jib (colloquially, the 'boom') and counter-jib are mounted to the turntable, where the slewing bearing and slewing machinery are located. The counter-jib carries a counterweight, usually of concrete blocks, while the jib suspends the load from the trolley. The Hoist motor and transmissions are located on the mechanical deck on the counter-jib, while the trolley motor is located on the jib. The crane operator either sits in a cabin at the top of the tower or controls the crane by radio remote control from the ground. In the first case the operator's cabin is most usually located at the top of the tower attached to the turntable, but can be mounted on the jib, or partway down the tower. The lifting hook is operated by using electric motors to manipulate wire rope cables through a system of sheaves.
In order to hook and unhook the loads, the operator usually works in conjunction with a signaller (known as a 'rigger' or 'swamper'). They are most often in radio contact, and always use hand signals. The rigger directs the schedule of lifts for the crane, and is responsible for the safety of the rigging and loads.
A tower crane is usually assembled by a telescopic jib (mobile) crane of greater reach and in the case of tower cranes that have risen while constructing very tall skyscrapers, a smaller crane (or derrick) will often be lifted to the roof of the completed tower to dismantle the tower crane afterwards.
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Posted: Tue Feb 10, 2009 6:07 am
first they need all the crane parts then they go to a pont and assemble. them. From that part on it takes a life of its own and flies aways biggrin
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