Build a Spaghetti Bridge - Holds 10-15kgs!

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SUMMARY

The discussion focuses on constructing a spaghetti bridge capable of holding 10-15 kgs, with specific design suggestions. Liv proposes using lasagne sheets and canneloni tubes for structural integrity, as these materials compress rather than stretch, reducing the risk of snapping. A previous record of 17 kgs is noted, and participants agree that strong adhesives like hot glue or epoxy should be utilized to enhance stability. Testing the bridge design before applying full weight is also recommended to ensure safety and effectiveness.

PREREQUISITES
  • Understanding of structural engineering principles
  • Familiarity with materials such as lasagne sheets and canneloni
  • Knowledge of adhesives, specifically hot glue and epoxy
  • Basic principles of weight distribution and load testing
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  • Research effective weight distribution techniques in bridge design
  • Explore the properties of different adhesives for structural applications
  • Learn about load testing methods for model structures
  • Investigate previous successful spaghetti bridge designs and their materials
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This discussion is beneficial for engineering students, hobbyists interested in structural design, and educators looking for practical applications of physics and engineering concepts.

liv
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hey,

the rules are as follows:
70cm long
200g heavy
use anything to keep it together

my preference:
holds about 10-15 kgs (it can be done)

spaghetti doesn't stretch or bend, cause it snaps, my dad thought of tube spaghetti (bucatini), one in the centre, and five round the outside, held with glue and make that long enough and wide enough...

i figure that it won't work cause of the strain...

my idea was more simple...

lasagne sheets on the bottom, canneloni (fat tubes of spaghetti) up right the whole length of the bridge, and then lasagne sheets on top...theoretically it should be one of the best options cause it only involves the spaghetti being compressed, not stretched at any point...

the previous record was about 17kg...if anyone can give me tips or ideas, please do...

thank you!

liv
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Hi Liv,

Thank you for sharing your ideas and thought process for building a spaghetti bridge that can hold 10-15 kgs. It's great to see your enthusiasm for this challenge and your willingness to explore different options.

I definitely agree with you that using lasagne sheets and canneloni tubes would be a more practical and effective approach compared to using tube spaghetti. As you mentioned, spaghetti is not very flexible and can easily snap under strain, so using a combination of lasagne sheets and canneloni tubes would distribute the weight more evenly and provide better support.

One suggestion I have is to also consider using a strong adhesive, such as hot glue or epoxy, to secure the lasagne sheets and canneloni tubes together. This will help to strengthen the structure and prevent any parts from coming loose under the weight.

Another tip I would recommend is to test your bridge design before adding the full weight of 10-15 kgs. This will allow you to make any necessary adjustments and ensure that your bridge is able to hold the weight without collapsing.

Overall, I think your idea of using lasagne sheets and canneloni tubes is a solid approach and with some additional reinforcement, I believe your bridge can definitely hold 10-15 kgs. Good luck with your project and I'm excited to see how it turns out!

 

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