30 story building built in 360 hours

[BrokenVisage]

Crane disassembles itself and the parts are lowered through the elevator shaft. Then the elevator gets installed.

In Communist China, crane disassembles self?

 

[CLite]

it's an all steel structure isnt it? probably limited to a certain number of stories before weight becomes an issue.
i believe lightweight concrete and rebar are needed for the super tower type scrapers.

Not at all, all the major skyscrapers (empire/twin towers/etc.) were steel frame which allowed them to be built much taller than previous buildings. However, recent advances (last few decades) in concrete technology has shifted emphasis to reinforced concrete for at least the base of skyscrapers. For instance, the lower half of the Burj is concrete but the upper half is steel, this is because the "new age" concrete has better compressive strength so less space and money is used for the lower frame, but steel is lighter for the upper part of the frame.

On topic, very cool video.

 

[Anubis]

In Communist China, crane disassembles self?

they do it in the US as well, its actually really cool how they put up and take down the cranes

 

[Brovane]

It is quite impressive, for China. The building might be able to survive an earthquake, but what about the foundation? Their buildings have been known to randomly tip over like dominoes.

I wonder if the process of prefabricating sections in a factory and then assembling on site is overall more efficient then "in place" construction. This could probably be used for houses to keep up with demands. Though I think it's already been done, and results in cheaply made cookie cutter houses, so it has it's drawbacks.

Usually construction something in a factory is cheaper and easier than doing it at the site. If you notice during the video they are even pre-laying tile for the floors at the factory. Can you imagine the efficancy of that versus laying the tiles at the site? They do a similiar thing during ship building with modular building. From what I have read it is 10xtime more efficient in labor hours to do something inside on the factory floor versus when you have to do it out in the dry dock on a partially assembled ship.

Actually the newer modular houses look fairly sharp and are nothing like the old modular houses of decades ago.

 

[Kev]

cool more chinese building spam