Bridge

Before designing our final bridge, we completed the Bridge Kit activities to better understand how bridges support loads and distribute forces. Through these experiments, we learned about compression, tension, structural stress, and how different truss designs improve strength while using fewer materials. We tested simple paper bridge models, compared different structural reinforcements, and observed how engineering design affects load capacity. Using these concepts, our team designed a Pratt Through Truss bridge in bridge design software that met the required specifications while maximizing strength and minimizing cost. We analyzed compression and tension forces, applied trigonometry and vector calculations, and optimized the structure before building it. We then recreated the final design in Tinkercad and produced a scaled 3D-printed model. Finally, we constructed a full-sized balsa wood bridge using the required materials and tested its load capacity by supporting moving bricks across the span. This project gave us valuable experience in structural engineering, computer-aided design, prototyping, teamwork, and real-world load testing while applying the concepts learned during the Bridge Kit activities.