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Thread: This is what Google thinks is the Cologne Cathedral

  1. #16
    Sheldon is offline Secretary of Defense
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    Re: This is what Google thinks is the Cologne Cathedral

    Quote Originally Posted by Damn Yankee View Post
    Actually it was a period of trial and error. "Flying buttresses" were an afterthought, because the tall walls began to buckle outward. Iron bracing of thin rock columns was likewise. Iron chains around the central spire at St. Peters was placed after they noticed that the circular shape was becoming larger.
    When I remember correctly it was the art to build the walls without buttresses.

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    Re: This is what Google thinks is the Cologne Cathedral

    Quote Originally Posted by Bleipriester View Post
    When I remember correctly it was the art to build the walls without buttresses.
    The Romans knew their stuff with respect to structures in pure compression, using stone and concrete, but much of this knowledge was lost during the fall of Rome. Da Vinci developed structural designs in the 15th and 16th centuries but few understood his theories. Galileo, Hooke and Newton developed the basis of modern structural engineering in the 17 century. It wasn't until the 18th century when Leonhard Euler developed his equations for columns and then beam theory in collaboration with Daniel Bernoulli, and a full mathematical basis for using tension elements (iron and steel) became available. Steel didn't become widely available for large scale structures until Bessemer developed his process in the 1850's.

    Most of the major buildings constructed prior to the 18th century was by gifted architects trained in empirical theories developed by observing the great Roman structures.

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    Re: This is what Google thinks is the Cologne Cathedral

    Quote Originally Posted by Damn Yankee View Post
    The Romans knew their stuff with respect to structures in pure compression, using stone and concrete, but much of this knowledge was lost during the fall of Rome. Da Vinci developed structural designs in the 15th and 16th centuries but few understood his theories. Galileo, Hooke and Newton developed the basis of modern structural engineering in the 17 century. It wasn't until the 18th century when Leonhard Euler developed his equations for columns and then beam theory in collaboration with Daniel Bernoulli, and a full mathematical basis for using tension elements (iron and steel) became available. Steel didn't become widely available for large scale structures until Bessemer developed his process in the 1850's.

    Most of the major buildings constructed prior to the 18th century was by gifted architects trained in empirical theories developed by observing the great Roman structures.
    Nice. But what about the buttresses?

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    Re: This is what Google thinks is the Cologne Cathedral

    What about them that hasn't already been said?

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