Compared with a slender beam, a deep beam generally requires which additional deformation effect in its analysis?
Correct answer: B. Shear deformation
- A. Thermal expansion only
- B. Shear deformation
- C. Axial shortening only
- D. Torsional yielding at every section
Explanation
In a deep or short-span beam, shear strain contributes appreciably to total deflection and should not be ignored. Slender beam theory often neglects this contribution because bending deformation dominates.
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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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