This enhanced version of Popsicle bridge #2 used 78 popsicle sticks, weighed 95 grams v the roadbed. It organized 73 pounds prior to failure which makes its effectiveness score 352.

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Design Constraints

Why did we design and build this leg the means we did?

Don’t need to modify any popsicle sticks

This leg does not need cutting or in any means modifying the popsicle sticks. This makes building much easier.

Span 24″

This bridge is actually 25″ long, so that spans a 24″ void with 1/2″ on either next to spare.

Focus top top efficiency

Rather that going because that pure strength, us at Garrett’s Bridges have constantly focused top top the efficiency score. This enables us to store the number of popsicle sticks used down to a minimum.

Focus on realism

This re-design of one older bridge is far-reaching because as Garrett’s Bridges, we are moving towards incorporating an ext realistic design principles right into our models. This method we contained a roadbed. We also moved and reduced the lateral bracing to allow “traffic” to relocate through the bridge. These two style elements really rise the usability and also overall functionality of the bridge model.

First test – Bucket ~ above Top

The initial test, throughout which this bridge hosted 53.2 pounds of sand without breaking, verified an amazing side effect of our liked loading method. We provided the bucket on peak method, and also simply poured sand into that bucket. It shows up that despite our efforts, the bucket to be not fully centered ~ above the bridge, which led to the bridge to lean. This would have at some point caused a early failure, however we ended up filling the bucket fully before this happened. Interesting, the lean of the leg was in the direction of the “right”, while the bucket had much more weight ~ above the “left” next of the bridge. You can plainly see this in the video below.

What did we learn?

This version of the bridge was just as reliable as that is predecessor, at the very least the “weaker version”. This is an excellent news, and also we will need to wait and also see as we try a different loading an approach until failure.

Also, we learned something about the bucket on optimal loading method, and how an important it is to obtain the bucket centered laterally. We don’t think that is rather as crucial to facility the bucket lengthwise ~ above the bridge, yet you can see the tell-tell signs of the bridge starting to go in the video. This could have been lessened if the load was actually focused over the bridge.

Second test – stand on Top

For the second testing we determined the Human, was standing on optimal method. It was immediately apparent that this an approach would most likely reason the bridge to shake and also become laterally unstable very quickly. The was an extremely hard to stand evenly top top the bridge. This time the bridge hosted 73 pounds before failure. This was certainly an improvement, however it was also a definite pre-mature failure. This puts the performance score at 352, i m sorry is ideal in the middle of the two previous versions. Certainly if we had used a more stable testing method this leg would have held significantly more. However there are also some means we could add an ext bracing.

It is clear that this version of the 25″ Arched Warren Popsicle Stick leg is an development over its an initial predecessor. Unfortunately the design elements that made this bridge much more realistic also reduced its stamin from the “stronger version” the its predecessor. The reduced lateral bracing make a vast impact ~ above the stamin of the bridge as soon as using the human trial and error method. If girlfriend recall, the predecessor to be stood on multiple times before failure. Every time a heavier human being stood ~ above it. The lateral bracing makes a large difference in the stability, and in this instance that straight related come its overall strength.

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Build this Bridge

We have actually both blueprints and a complete kit obtainable to do it super straightforward for girlfriend to develop this leg on her own. Consisted of with every of these are concepts for you to modify the original style to make it even better.