Masterpiece Popsicle Stick Bridge 2009
Jan 13, 2013Public
Photo: This was my best bridge that I made for the Seattle ASCE Popsicle Stick Bridge Competition.
Photo: Beautiful, isn't it?
Photo: With the road deck removed we can see the replacement beams I made. The only thing that broke on this bridge was the original three beams directly under the load head.
Photo: A view underneath.
Photo: Here you can see that those round spokes actually are made out of popsicle sticks.
Photo: Here we can see the geometry of the compression members.
Photo: Notice the blocks of popsicle sticks at the seam in the compression member. Those help a ton with construction and keep the seams from slipping.
Photo: All the cross bracing is attached to the sides tongue and groove style.
Photo: Overall picture again.
Photo: This is my redesign of the beams that broke, notice the diagonal seams in each layer between popsicle sticks. I did a similar diagonal sanding and splicing technique with the cross bracing since a singe popsicle stick is not long enough to laterally cross the bridge.
Photo: This shows the staggering of the popsicle sticks in the top compression member.
Photo: Same thing on the outer member.
Photo: Same thing in the other compression member.
Photo: Tongue and groove really works.
Photo: Underneath the cross bracing.
Photo: Detail of the "K" bracing. The connection in the middle could be stronger.
Photo: The road deck was amazing.
Photo: Here's where they wrote how much it held. 993 pounds :D
Photo: It's so thin it's translucent.
Photo: Crazy thin
Photo: If you want to know exactly how thin...
Photo: It's a beauty. Making it so thin allowed me to put significantly more weight into the structure of the bridge. That's very important to do when you've only got 350 grams to work with.
Photo: We made that thing shine.
Photo: Here's how we kept it from warping.