The ideas behind our first bridge was to use the truss system and adapt it for a practical usage in popsicle stick bridge. Which we did through a process of simplification and reinforcing parts of metal bridges to fit popsicle sticks. We built trusses along the sides to do disperse tension and compression throughout the whole bridge and make sure that there is not too much weight forced on to one area of the bridge. We built the top and bottom using a modified version of the standard bridge top that made a standard x shape to look more like an n. This caused the distribution and receiving of weight went in a consistent movement and didn't double back on itself, which would have caused it to collapse.
Our bridge was designed to be simple and effective, our bridge had two major flaws that caused it to collapse. The first was that our sides were not symmetrical, they were further spread apart and of different heights on the different sides of the bridge. Second was that because we focused on modification we did not fix the changes we made. Some points were not thick, while others did not work as effectively as we thought or they were not secure enough to be effective.
For our second bridge we knew we had to make it stronger than the first. We decided to make the four beams running along the side of bridge 2 thicker so they would be able to hold more weight. We also knew our last bridge was not very symmetrical, the beams were spread further apart on one side than on the other. We decided to be more carful when built the second.
While building our bridges we learned that the best way to build a bridge was to use triangles because they are a very sturdy and an effective way to make your bridge strong and to have the thin side of popsicle sticks facing the ground because the stick is stronger and can hold more weight that way
The bridge broke because of all the pressure the weights were putting on it. It was built to be lightweight and thin however this ultimately made the bridge cave in on itself and break off into little shards and pieces.