Structural analysis evaluates how a structure responds to forces and other effects using project criteria and stated assumptions.
Definition
Structural analysis uses calculations, models, or other accepted methods to estimate how a structure or its components respond to loads and other effects. The work can include selecting a representation of the structure, applying project criteria, checking results, and documenting assumptions. Its scope may cover a whole system, selected members, or a specific design question. Firms differ in how they divide modeling, calculation, independent review, and documentation across project phases and fee items. Results depend on input data and assumptions, including geometry, material properties, supports, and load conditions. Analysis supports engineering decisions, but it is not by itself a complete design, construction inspection, or confirmation that every existing condition matches the model. Owners can align the analysis scope with deliverables, review responsibilities, and the criteria that govern the project. See ASCE for engineering practice resources.
How owners use it
- Define the structure, design question, criteria, model assumptions, and expected documentation in the scope.
- Budget analysis, model setup, checking, and design coordination as distinct work activities when useful.
- Example: 24 modeling hours + 16 checking hours = 40 hours of structural analysis effort.
- Compare analysis assumptions with survey, geotechnical, and existing-conditions information before design decisions.
