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【Daily Question】Theoretical Foundation 2020.02.02

2020-02-02View Original

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Multiple-choice question: Given the truss structure configuration and the load FP (as shown in the figure), the number of members in the structure for which the internal force is zero is ( ). A.0 B.2 C.4 D.6 Answer: D According to the zero-member method, based on the equilibrium at nodes E and H, it can be determined that members DE and GH are zero members. After removing members DE and GH, it can be determined from the equilibrium of nodes D and G that members DC, DA, GC, and GB are also zero members. Tip: An additional reward will be given to those who can explain the problem-solving process; the answers can be seen here!

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