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The static indeterminacy of the two-span continuous beam with an internal hinge, shown below, is

1. 1
2. 2
3. 3
4. 4

Correct answer: 1

Solution

The static indeterminacy of a two-span continuous beam with an internal hinge is determined by the number of reactions minus the number of equilibrium equations available. In this case, the internal hinge allows for one additional degree of freedom, resulting in a static indeterminacy of 1.

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