TASK 1.8_final_ch

TASK 1.8_final_ch - TASK 1.8 FINAL DESIGN TEAM MEMORANDUM...

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TASK 1.8: FINAL DESIGN TEAM MEMORANDUM TO: FROM: Subject: Tensile Capacity Determination of Stick Magnets Date: 12 October, 2006; [Class 14] Summary: The main objective is to define the calculated live-load, the observed live- load, and the final benefit to cost ratio of the truss bridge. Difficulties to the general project included the loss of one team member, where the group was only able to work with three members instead of the initial proposed four members. However, there were no considered restrictions on calculating the particular mathematical findings concerning this Task 1.8. Thus, Team 2 calculated the live-load, observed the actual live load and recorded the results, and finally determined the benefit to cost ratio for the final selected truss bridge design. These conclusions were found after completing the Tensile Capacity of the Stick Magnets used. These results determined the strength of the magnets, which later allowed the failure load to be found using the data. Before the failure load could be determined, the final bridge design was completed with internal force calculations. These sums of forces within the truss showed numerical values concerning which members were in compression or tension. Figure 1: Front Side Truss View for Final Design Problem Description and Method: To determine the theoretical live-load of the truss bridge design, the internal forces of the bridge were calculated at points A, B, C, D, E, F, and G. Figure 2: Free Body Diagram for Final Design The free body diagram depicted above shows where 0.5lb was applied to one side of the truss at points B and F. The equations for the sum of forces were as follows: ∑Fx = 0
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TASK 1.8_final_ch - TASK 1.8 FINAL DESIGN TEAM MEMORANDUM...

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