A1-SCHETLEY

My initial bridge design is just a simple arch bridge design with triangular truss members I settled on this after realizing that other shapes weren't as strong as a combination of arches and triangles. The initial design is very simple, which is expected since I am relatively new to not only West Point Bridge Design but bridge design in general. Initially I tried to incorporate two equally sized arches across the bridge, but I could not get the bridge to support itself, even without the truck on it. I actually realized that in order for there to be multiple arches, there must be a center column in the water. Right now the bridge costs $334,495.95, but as I become more comfortable with the program, the strengths and weaknesses of certain materials, and what is the best shapes for bridges, I feel like the bridge can go below a cost of $300,000, possibly even $250,000. Below are pictures of the bridge's 2-D design, its 3-D design, and the test results of the bridge.

Figure 1: 2-D Design

Figure 2: 3-D Design

Figure 3: Test Results