Wednesday, May 23, 2012

A3 - Chelsea Moss


Method of Joints




Calculations for each joint member were obtained by using the Method of Joints structural analysis. A free body diagram was drawn to figure determinacy of the problem. Each individual joint member was composed in a series of calculations to solve for reaction and internal forces within the bridge when load is applied. These calculations help visualize tension and compression forces so that efficient alterations can be made.





The diagram in Bridge Designer must be scaled properly to that of its tangible prototype. When conducting the Method of Joints calculations by hand, its particular measurements are considered. Therefore, the same must be done in order to achieve corresponding accuracy. The results shown in Bridge Designer verify this common oversight because they were a multiple of our original values. Consequently, the results must also be scaled to correlate with its dimensional proportions.




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