For a two hinged arch under a vertical loading system, the degree of static indeterminacy is generally
Correct answer: B. one
- A. zero
- B. one
- C. two
- D. three
Explanation
A two hinged arch has one redundant horizontal reaction because the ordinary equilibrium equations do not determine all reactions. Compatibility of horizontal displacement supplies the additional equation.
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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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