Chinese Demolition Screw up leaves leaning Tower

Discussion in 'Architecture & Engineering' started by madanthonywayne, Jan 2, 2010.

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  1. madanthonywayne Morning in America Staff Member

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    An attempted demolition of a 22 story building in China left half the building still standing at an oblique angle. The other half, instead of falling straight down as most US implosions do, fell sideways nearly hitting an adjacent building. Check out the video:
    Demolition Failure
     
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  3. Baron Max Registered Senior Member

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    I can't view the video because it locks up my computer. But having studied a bit of demolition as well as being an former architect, I can assure you that demolition of highrise buildings is as much art as it is science. I read a blurb once about demolition that said something like, No demolition ever goes as planned. And the demolition of highrise buildings is even worse.

    What's at fault is often not the demolition planning, but the actual original construction. Where the plans claim that col A-4 is the same as A-5, it isn't. So the design of the blasting force ends up being right for one, but wrong for the other.

    Just for fun, you might also check on the forces of a light breeze on the side of a 22-story building. It's far, far more than you might imagine. If the demolition didn't wait for a completely still day,....? And then, is there such a thing as a completely windless day?

    Baron Max
     
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  5. Pinwheel Banned Banned

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    You think thats funny, have a look at this.

    http://www.youtube.com/watch?v=VdffzWNKrn8
    http://news.bbc.co.uk/1/hi/8179857.stm

    Bizzarre! Max as an architect what do you make of that? Moreso the behavious of the building surviving intact on its side? Buliding was constructed in 1928.
     
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  7. Michael 歌舞伎 Valued Senior Member

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    A demo where they had fireworks (on the other side of a lake) and somehow a peace of metal was flung all the way across the water and killed a girl. Really sad.

    Royal Canberra Hospital implosion
     
  8. Scaramouche Registered Member

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    I remember that one, it was quite horrible.
     
  9. Blindman Valued Senior Member

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    Man that building was well built. Even after one half toppled over and hit the ground its still remained intact.
     
  10. Baron Max Registered Senior Member

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    Couldn't see the video because clicking on links like that locks up my computer. But back in 1928, especially in the USA, many buildings were over-designed by oodles simply because lots of building types and structural engineering had never been tried, so it was uncharted territory. So, ...where one #4 rebar would have been adequate, they put in 4-#4's See? Ditto with size of concrete columns ...bigger is better.

    Baron Max
     
  11. Orleander OH JOY!!!! Valued Senior Member

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    is this an earthquake resistant building?
     
  12. Baron Max Registered Senior Member

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    Which building? There seems to be several buildings being discussed in this thread ....and none of them are obvious to me because I can't look at the videos!

    Baron Max
     
  13. Orleander OH JOY!!!! Valued Senior Member

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    Oh, its the purple one with all the naked women walking by.
     
  14. Baron Max Registered Senior Member

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    Sorry, can't see the building, remember? The naked women having nothing to do with the issue ....it's my computer! It locks up when I click on some link listed here at the Sciforums. ....especially some video or YouTube.

    Baron Max
     
  15. Orleander OH JOY!!!! Valued Senior Member

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    maybe your computer has used up its naked women quota for the year already so you can't view anymore.
     
  16. Baron Max Registered Senior Member

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    ...LOL! My computer hasn't even seen any naked women in all of last year, so I doubt that this year will be different.

    Oops, wait a minute ....I take that back! Sometimes pictures are actually posted here in the threads ...rather than as links. When that happens, I can see the pictures. So, some nudies that have been posted here, my computer might have seen without locking up.

    Baron Max
     
  17. fedr808 1100101 Valued Senior Member

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    I lold so hard when i saw that, but I see what happened, ideally you want to collapse the center of a building on itself so it drags itself down, I believe they put too much explosives at the center and caused a clean cut down the middle, and the force of the explosives pushed one side over but the cut was too clean and the other side wasnt pulled with it.

    Atleast, thats what I think happened.
     
  18. Pinwheel Banned Banned

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    Yeah I say the same to my Mom when she catches me looking at gay porn.

    Please Register or Log in to view the hidden image!

     
  19. preearth Banned Banned

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    Then look at the pictures at: news.bbc.co.uk/1/hi/8179857.stm
     
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