Saturday, August 02, 2008

How to Demolish a Skyscraper

Some things are just too cool to miss, no matter what subject you came to this blog to see.

Via Freshome we have this.

Japanese construction firm Kajima Corporation is using this innovative new skyscraper demolition method to dismantle a pair of old company buildings in Tokyo. Compared to blowing it up, this method saves time and space, pollutes the air less, makes material recycling easier, I think that in big cities this method would be very useful and it’s obviously a lot less dusty than a traditional demo.

First they replace the support pillars at ground level with computer-controlled metal columns. Then, a crew carefully demolishes the entire floor by hand, leaving the structure resting on the mechanical pillars, which then go down slowly until the next floor is at ground level. They replace the support pillars again with the mechanical ones, destroy that floor, and repeat the operation until they get rid of all the floors.

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