The three-moment theorem is primarily used to determine bending moments in
Correct answer: D. Continuous beams over several supports
- A. Single-span simply supported beams
- B. Pin-jointed plane trusses
- C. Short compression members
- D. Continuous beams over several supports
Explanation
The theorem relates the support moments at three consecutive supports of a continuous beam. It is useful for analysing continuous beams, especially when spans and loading conditions vary.
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About Structural Analysis
Structural analysis determines how beams, frames, trusses and arches carry loads through reactions, shear forces, bending moments, axial forces and deflections. It covers free-body diagrams, equilibrium equations, determinacy, influence lines and methods such as slope deflection, moment distribution and virtual work, while distinguishing analysis of a structure from its design.
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