August 26th, 2009

ronin

Having too much fun with the Johns Hopkins virtual labs bridge builder.


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This very simple design based on interlocking triangles surprised me with how weak it is. With a 200 lb load that's fairly evenly distributed, the central span takes almost 400 lbs of force - and in compression yet! Lousy.

http://www.jhu.edu/virtlab/bridge-designer/

http://en.wikipedia.org/wiki/Truss_bridge

Or check out all the virtual labs.
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