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Paper bridge project

  1. Sep 22, 2010 #1
    Paper bridge project !!!

    hi i have a paper bridge project coming up and need some help making a design that will hold the most. the rules are the bridge has to made with one sheet of lined paper and no adhesives are aloud including tape and glue. the bridge needs to span 12 cms and hold as much as possible. past designs have held more than 20 lbs. any help will be much appreciated

  2. jcsd
  3. Sep 22, 2010 #2
    Re: Paper bridge project !!!

    I assume the single sheet of paper must be foldeded into shape and neither torn nor cut?
  4. Sep 22, 2010 #3
    Re: Paper bridge project !!!

    it can be cut but that would ruin the integrity of the paper

    i would make one that looks like the letter A
  5. Sep 23, 2010 #4
    Re: Paper bridge project !!!

    it can be cut or torn,
  6. Sep 23, 2010 #5
    Re: Paper bridge project !!!

    how would i make it into an A and hold as much as possible?
  7. Sep 23, 2010 #6
    Re: Paper bridge project !!!

    Think about what qualities the paper has, What qualities does the tape/string have? (edit: nm you aren't allowed them, in that case research joints).Also think about how bridges are loaded.

    Hint: It depends on the shape of the material.

    As you've stated this is a project, I'll help you as though it were a homework question, so no freee answers :D
    Last edited: Sep 23, 2010
  8. Sep 23, 2010 #7
    Re: Paper bridge project !!!

    Consider the length of your bridge. Are there any specifications on ground clearance or number of points touching the ground?
  9. Sep 23, 2010 #8
    Re: Paper bridge project !!!

    no the only rule is that it has to span 12cm
  10. Sep 24, 2010 #9
  11. Sep 24, 2010 #10


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    Re: Paper bridge project !!!

  12. Sep 24, 2010 #11
    Re: Paper bridge project !!!

    Can you lick it? ;)

    Kidding; the easiest way would be to carefully cut a slit and use a T-shaped piece at the end of the roll and slip that through a horizontal slit cut in the sidewall of the roll.
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