Arches or Beams: Why Arches Hold More Weight on Pasta Bridges

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Pasta bridges designed with arches or triangular peaks can support more weight than flat beam structures due to their ability to distribute stresses more effectively. The arch shape is recognized as one of the strongest natural forms, allowing for better load management. Triangular arrangements also approximate this strength by providing stability and rigidity. The discussion highlights the importance of structural design in weight-bearing capacity. Further insights from an engineer are anticipated to deepen the understanding of these principles.
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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.
 
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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.
 
That does make sense. Thank you for the input!
 

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