My goal for this design was to have an original Truss Bridge, with supports on both the bottom and the top. I originally had just the triangles, but the bridge was too week, so I added downward supports on the top of the bridge to support it.
My bridge was originally only a top Truss bridge, but I added the bottom for extra support. I used Carbon steel throughout for its strength (even though it was the most expensive). Also I added crossbars on the top Truss because the triangle formation wasn't strong enough on its own.
My bridge currently costs $470, 270.98. This cost could be improved, however, if we replaced the strong carbon steel on the ends of the bridge with maybe something a bit cheaper. We would of course make sure that we watch the compression and tension when testing a different material, and compare it to the carbon steel to make sure it is safe. From this bridge design I have learned that there are millions of ways to build one bridge. When creating a bridge you kind of just start with a basic idea and add off of that as you go. Improvements can always be made, and a stronger bridge can always be created.
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