Structural calculations demonstrate how a proposed element or structure responds to the loads it is expected to carry. They are used to select suitable sizes, materials, connections and foundations and to check that relevant safety and serviceability requirements are satisfied.
What calculations normally consider
- Permanent loads such as self-weight and fixed construction
- Imposed loads from people, storage, equipment or use
- Environmental actions such as wind, snow or temperature where relevant
- Strength, stability, deflection, vibration and connection behaviour
- Material properties, durability and applicable design standards
What the deliverable may include
Depending on the project, the package may contain a design basis, assumptions, loading, analysis results, element checks, connection requirements, sketches or drawings and a summary of the selected solution.
Calculations are only part of the design
A technically adequate member can still be unsuitable if it cannot be installed, connected or coordinated with the rest of the project. Good engineering design therefore considers buildability, available space, tolerances, sequencing and the information required by others.
Information quality matters
Calculations depend on the geometry, materials, support conditions and loads supplied or established for the project. Where information is uncertain, assumptions should be stated and may need verification before construction.
This guide is general information and cannot account for the condition, geometry, loading or constraints of a particular project. A suitable scope should be agreed before relying on engineering conclusions.