Qualitative structural analysis is an unusual term to structural engineers. Generally, numerical (quantitative) process is followed to evaluate the structures.
Prior to start numerical structural analysis, another crucial phase is preliminary analysis. Under this phase, dimensions of elements are taken prior to start the analysis.
Logically, the detailed numerical analysis is initiated to verify the values are implemented in the preliminary analysis. So, it is recommended to size the structural elements properly otherwise the analysis should have been repeated several times irrespective of applying computer or manual calculation. It is laborious and expensive and the designer must circumvent this condition.















