Author2022 TCNJ Steel Bridge Team |
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Final Bridge Design10/25/2021 Upon reviewing the alternative designs put forth by each member, it was determined that Alternative Design 1 had the best score on the decision matrix and would therefore be used as the basis for our final design. Weights were given to each design criteria based on how important the team thought they would be. Some changes have been made to Alternative Design 1 to improve its performance. The total height of the design was increased by 2 inches, with further angled supports being added connecting to the footings. 2.5 foot lateral supports were added between stringers. The footing sizes were increased to 3in X 3in to increase stability. Thickness of members were changed to either decrease weight or decrease sway and deflection. Currently, the bridge weights an approximate 232lbs.
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