【Daily Question】Theoretical Foundation 2020.04.09

2020-04-09View Original

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Multiple-choice question: The shear force diagram and bending moment diagram of the simply supported beam AB are shown in the figure. The correct stress diagram for this beam is ( ). Answer: C. From the shear diagram, there is a downward sudden change at the mid-span of the beam, which corresponds to a downward concentrated force whose value equals the magnitude of that sudden change, namely 100 kN ； Looking at the bending moment diagram, there is a sudden change of 50 kN • m at the mid-span of the beam, which corresponds to an external couple moment of 50 kN • m. Hint: An additional reward will be given to those who can explain the solution process; the answer can be found in the response!

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【Daily Question】Theoretical Foundation 2020.04.09

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