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Arches or beams?

  1. Apr 19, 2008 #1
    Why do pasta bridges made with arches or triangular peaks hold more weight than those made with a flat beam? Assume the weight is attached to the base or deck of the bridge.
  2. jcsd
  3. Apr 19, 2008 #2


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    An arch is inherently the strongest structure in nature, and a triangular arrangement is a reasonable approximation thereof. It has to do with how stresses are distributed. An engineer should be along shortly to give you more information.
  4. Apr 19, 2008 #3
    That does make sense. Thank you for the input!
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