Scope & assumptions
Factor-based combination helper with Q1 treated as the leading variable action. Enter factors required by the applicable code and project.
METRIC REPUBLIC ENGINEERING · PRELIMINARY
Load Combination Calculator
Build transparent ULS and SLS combinations from permanent and variable actions with user-entered partial and combination factors.
User factorsULS / SLS
Calculation basis
ULS = γG·(G1+G2) + γQ·(Q1+ψ0·Q2); SLS rare = G + Q1 + ψ0·Q2; frequent = G + ψ1·Q1 + ψ2·Q2; quasi-permanent = G + ψ2·(Q1+Q2).
Important engineering note: Combination rules, favourable/unfavourable permanent actions, accidental/seismic cases and ψ factors vary by code and occupancy. Verify the applicable standard. Transparent preliminary engineering checks with user-visible assumptions and formulas. Final design must be verified to the applicable code, National Annex and project requirements.
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Frequently asked questions
Is this a complete code design?
No. It is a transparent preliminary calculation. Code-specific limits, detailing, stability and project conditions must be verified independently.
Can I use the result for construction?
Use the result as a screening or checking aid only. Final design and construction documents should be verified by a qualified professional where required.
Why are some resistance factors entered by the user?
Many design standards contain member-, material-, product- or project-specific values. Metric Republic keeps these visible and user-controlled instead of hiding assumptions.