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Need help with bridge building.

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Cotter
Posts: 2546 - Karma: 850

 What up ns? so for my metal shop summative we have to design a bridge and make it using 1/4" hot rolled steel round rods and 1/8" hot rolled steel round rods. I need advice for the design part, such as what design is the most efficent, points are scored to have the lightest but strongest bridge. We also have to use truss design

dimensions are: 34" long, 6" wide.

+k awarded for good answers and help

May 29 2012 10:23AM
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Bar_Down
Posts: 5896 - Karma: 395
Just make triangles everywhere
May 29 2012 10:27AM
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PopsicleStand
Posts: 6890 - Karma: 147
this probably belongs in the nostalgia thread

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May 29 2012 12:02PM
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yuck
Posts: 8384 - Karma: 2,090
im sure there are plans for bridge projects like this all over the internet if you just look.
May 29 2012 12:07PM
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Cufe.
Posts: 1950 - Karma: 262
the best design would have a good weight dispersion as well as a method for maintaining rigidity. I would go with a deck made with small trusses that link back to two reenforced joints that connect to each end of the arch.
Study truss bridges as well to get an idea of what the strongest design is.

This is an example of the bridge design I recommended above.
Click for larger image
Click for larger image
May 29 2012 12:09PM
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cobra_commander
Posts: 16909 - Karma: 4,682
Funny, Google worked for me earlier today, maybe your's was defective or something. Try it again.
May 29 2012 12:17PM
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Dreamcatchers
Posts: 62 - Karma: 14
I'd say cross bracing in key points. It will let it be light and sturdy. Hope this helps you!
May 29 2012 2:27PM
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Cotter
Posts: 2546 - Karma: 850
Yeah i actually was googling stuff, i was learning about truss design, i was asking if anyone knew of any really good plans/designs because they've worked for them.
May 29 2012 3:23PM
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stizzle
Posts: 371 - Karma: 623

West Point Bridge Designer

http://bridgecontest.usma.edu/download.htm

Dowload it and play around

May 29 2012 3:24PM
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