For a beam segment carrying no distributed load, what is the shape of its bending moment diagram between concentrated actions?
Correct answer: A. Constant or linear
- A. Constant or linear
- B. Parabolic only
- C. Cubic only
- D. Sinusoidal only
Explanation
With no distributed load, the shear force is constant between point actions, so the bending moment varies linearly. If the constant shear is zero, the moment remains constant over that segment.
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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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