Video: ‘Daruma-otoshi’ skyscraper demolition
Japanese construction firm Kajima Corporation is using an innovative new skyscraper demolition method to dismantle a pair of old company buildings in Tokyo. (Watch a time-lapse video.)
Unlike conventional demolition that begins at the top of the building, Kajima’s new method starts on the bottom floor, where the support columns are cut and replaced with giant computer-controlled jacks. Once the floor is demolished and the debris removed, the entire building is lowered and work begins on the next floor. The process is repeated for each floor until the entire building is gone.
Kajima informally calls this the daruma-otoshi method, after the old Japanese game consisting of a daruma doll made of stacked pieces that players knock out one by one without toppling the doll. (Watch a super slo-mo video.)
According to Kajima, the daruma-otoshi demolition method — which is now being used to dismantle a 75 meter (246 ft) tall, 20-story building and a 65 meter (213 ft) tall, 17-story building — is safer and creates less noise and dust pollution because the work is kept close to the ground. In addition, this method cuts demolition time by 20% and makes it easier to separate and recycle the building materials.
[Link: Kajima]
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How long does it take to demolish a building that way?
[…] The daruma-otoshi demolition method: Taking apart a skyscraper, by starting at the bottom. […]
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[…] Check out more over at a translated site Kajima or a nice write up at Pink Tentacle […]
[…] daruma-otoshi, which is the name of a popular Japanese game were the concept was taken from. Pink Tentacle says: According to Kajima, the daruma-otoshi demolition method — which is now being used to […]
This is an experiment by Kajima, the first of its kind. They decided to test out the method on their own two buildings in the Akasaka Mitsuke area of Tokyo. I walk by these every day, its been going on for months.
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Video: ‘Daruma-otoshi’ skyscraper demolition ::: Pink Tentacle…
When is the last time you saw a building demolished one floor at a time, from the ground up?…
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[…] Strange Building Demolition Technique Blog by MistaPrimeMinista Blogging in Uncategorized A Japanese company Kajima Corporation is using a demolition technique called Daruma-Otoshi. They replace the support columns with massive computer controlled jacks, allowing them to remove the buliding floor by floor. It saves them time and space, does not create pollution and helps to recycle materials. VIDEO-> Via Pinktentacle […]
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Video: Bottom-up skyscraper demolition…
Japanese construction company Kajima is currently in the process of constructing their new headquarters building and as part of the work it had to demolish their old high rise buildings used for that purpose before.
Unlike today’s common approac…
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[…] must watch this amazing video of a skyscraper in Japan being demolished one floor at a time from the bottom up, seriously. This technique causes much less damage and cleanup to the surrounding area, enables […]
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Now can we *build* a building that way?
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[…] Le nom “daruma-otoshi” qui décrit ce procédé vient d’un jeu japonais qui consiste à retirer les parties basses d’une colonne avec un marteau sans perturber les éléments supérieurs. [Kajima via Pink Tentacle] […]
[…] Corporation has developed a new technique of demolition that is both a more sustainable method and poeticly beautiful to watch sped up. daruma-otoshi is a method of removing the materials of a building floor by floor, systematically […]
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