Why is the Slope-Deflection Method considered more efficient than the Force Method for analysing indeterminate structures?
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A.
It cannot be used for beams and frames
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B.
It involves fewer equations and unknowns, making it easier to solve
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C.
It requires writing compatibility equations for unknown forces
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D.
It is limited to structures with low degrees of indeterminacy
Correct Answer:
B. It involves fewer equations and unknowns, making it easier to solve
Explanation:
The correct answer is: It involves fewer equations and unknowns, making it easier to solve.
The Slope-Deflection Method is often preferred for analyzing indeterminate structures because it uses joint displacements as the primary unknowns. For structures with a low degree of kinematic indeterminacy, this results in fewer simultaneous equations compared to the Force Method, which relies on redundant forces as unknowns. By simplifying the mathematical complexity and reducing the number of variables, the Slope-Deflection Method streamlines the analysis process for beams and rigid frames.
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