Tower Cranes....WTF??

[Northstander]

Anyone know how in city centers the 1st Tower crane is built, everytime I see them on the way to work, I just can't determine how?

(Office worker, not labourer!)

 

[Croydonbloke]

Anyone know how in city centers the 1st Tower crane is built, everytime I see them on the way to work, I just can't determine how?

(Office worker, not labourer!)

They are put up with another crane but that one being a moblie one.


http://www.ci.renton.wa.us/commserv/facility/featu12a.htm

 

[D'Angelo Saxon]

I was thinking this exact same thing the other day...

 

[Highfields Seagull]

I was thinking this exact same thing the other day...

Oooh, me too.

 

[D'Angelo Saxon]

The wonders of the internet presents:

http://science.howstuffworks.com/tower-crane4.htm

 

[Lokki 7]

I've also wondered about this. And walls that go directly into rivers, how do you build the foundations?

 

[surrey jim]

Ive always wonderd about dam's how did the Hoover dam get built, surley when it was small the river just went over the top of it, or do they divert the river to build it

 

[London Calling]

i was wondering how the foundations for old bridges were built such as Tower Bridge in the Thames, these foundations would be constantly under water?

I assume they have to build some type of dam around the foundations?

 

[Bozza]

I googled this great crane mystery a few weeks ago and got to howstuffworks.

The self building feature is kinda cool.

However I'm still not sure I understand how it works when they're on the top of a big building. Surely they'd have to keep moving the place it is bolted to as the building grows, and then how do they get it down again?

 

[Hiney]

Ive always wonderd about dam's how did the Hoover dam get built, surley when it was small the river just went over the top of it, or do they divert the river to build it

Watched a QUALLA programme on this recently.

Basically they built two f***-OFF tunnels either side and diverted the river whilst they built the Dam.

1000's of people DIED during the building btw, they used to hack out the cliff whilst hanging from ropes and loads of them fell off.

 

[Heffle Gull]

I googled this great crane mystery a few weeks ago and got to howstuffworks.

The self building feature is kinda cool.

However I'm still not sure I understand how it works when they're on the top of a big building. Surely they'd have to keep moving the place it is bolted to as the building grows, and then how do they get it down again?

I think they just drop it over the side when they are finished

 

[Wardy]

Watched a QUALLA programme on this recently.

Basically they built two f***-OFF tunnels either side and diverted the river whilst they built the Dam.

1000's of people DIED during the building btw, they used to hack out the cliff whilst hanging from ropes and loads of them fell off.

Didn't the workers all live in a purpose built city? They were paid most of their money in tokens that could only be spent in the shops in the city. This was to stop them going out on the piss in nearby Las Vagas.

 

[West Hoathly Seagull]

Northstander, this site may interest you. They recently had a thread on the Gehry towers if I remember right. It's full of tall buildings being built in London, Leeds, Manchester, and shows what a massive building site much of Britain is at the moment.

 

[chip]

Watched a QUALLA programme on this recently.

Basically they built two f***-OFF tunnels either side and diverted the river whilst they built the Dam.

1000's of people DIED during the building btw, they used to hack out the cliff whilst hanging from ropes and loads of them fell off.

Weren't most of these people Chinese?

 

[Cadiz Seagull]

Another question that has always intrigued me is how do stadiums get built (pedant alert - stadia)?
Throw shitloads of money at it, nearly go bust and wait 10 years is the normal process as far as I can see (at least in certain parts of UK)