Final Bridge Project

For our final bridge project my group built a truss bridge. We started building a truss bridge from squares and enforcing the squares with a kinect in the middle. These ideas became weak and caved in, in the middle of the bridge. Then, we started building squares, on the bridge, with smaller connecters and just enforcing the top and bottom of the bridge with little triangles to have the bridge do well with tension, The bridge snapped in half. After trying to enforce the bridge with triangles, we attempted to add triangles every other on the sides, and all squares had triangles on the top and bottom. This did not work, it snapped in half again. Eventually we added triangles to every square on the bridge, and the bridge successfully held a 10 kilogram bucket of sand. The bridge was 31 by 4.5 inches on the front view, 20 by 4 inches on the top view, and 4 by 6 inches on the side view. The bridge's total cost was $10,420. We use a total of 221 pieces to create the bridge. The bridge's strength to weight ratio was 10 kilograms to 0.399 kilograms. Our project was successful after testing and retesting, to make a bridge that goes well with tension and compression.