PRESENTATION OUTLINE
Building a Bridge
By: Jacob Brooks &
Tyler Mukai
Problem and Need:
The problem we had to solve is how could we design and build a bridge, using the required materials and specifications, that would hold the most amount of weight possible.
Researching:
For our research, we used the articles found on the website whitebox.com. This allowed us to learn about tension, compression, how the joints work, and which trusses work the best.
Developing Possible Solutions:
Using the information from our research, we started to develop possible solutions for our problem and need.
We thought that a triangle truss and a few of our own ideas would be the
best solution.
Building Our Bridge Online:
Using the website whitebox.com, we were able to design and redesign our bridge while also testing it online. After, we were able to select our best design and print out blueprints so we could build it in real-life.
Building Our Bridge Physically:
When building our bridge, we first built the floor, then build both trusses. Our materials for building included:
balsa wood, Gorilla Glue, wax paper,
razor blade (box-cutter),
blueprints, and a paintbrush. We will show you a time-lapse of us building.
Testing:
When testing our bridge, we placed our bridge on the "Pulley Bulley Bridge Tester." Then we placed a piece of wood onto the bridge and attached the pulley to the piece of wood. We then placed weights into a bucket attached to the pulley, which pulled down on the bridge. We will show you a video of us testing.
Here is a picture of our bridge after our first test. You can see that only one end of our bridge snapped.
Second Test:
After testing our bridge once, we decided we wanted to see if it could hold anymore weight.
So, we tested our bridge again and it held a little more than our first test, which surprised us.
Here is a picture of our bridge broken after
our second test.
Here is another picture from the top of our bridge.
In the end, we were able to build a bridge that was able to hold a pretty good amount of weight.
