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  1. #11
    tweakedgeek tweak'e's Avatar
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    Default Re: le Viaduc de Millau - the tallest bridge in the world

    Quote Originally Posted by zqwerty View Post
    I'm surprised the piers and pylons were not constructed completely out of steel, is concrete a lot cheaper than steel? I would have thought flexibility would be very important in this sort of construction.
    concrete is quicker and cheaper to build with. ie you can pour it and end up with a very large seamless piece. where as steel you have to move small sections into place and join it. all the joins are critical failure points.
    its all about using each material at its strengths.

    steel requires some intricate design to make it stiff enough which in turns makes it substantially harder to build when building large structures.
    Tweak it till it breaks

  2. #12
    VoidMaster
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    Default Re: le Viaduc de Millau - the tallest bridge in the world

    Thanks for that info.
    It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche

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