Erection Engineering — Column Plumb Tolerance
Column Plumb Tolerance for steel erection field engineering.
The 1:500 rule is what 'plumb' legally means in steel — 16 mm on an 8 m tier. Survey it before the bolts are tensioned and the welds made: after, the same millimetres become a structural modification.
Formula
Note: Erection-planning estimate only. Member weights, connection capacities and tolerances for execution must come from the issued drawings, the EOR and the erection engineer — never from a generic calculator.
Column Plumb Tolerance for steel erection field engineering. A free structural steel delivery & erection tool — no sign-up, no upload, instant results in your browser.
About Erection Engineering — Column Plumb Tolerance
Erection Engineering — Column Plumb Tolerance computes the governing relationship AISC 303: 1:500, with absolute caps (25 mm toward, 50 mm total in first 20 storeys) live as you type. The 1:500 rule is what 'plumb' legally means in steel — 16 mm on an 8 m tier. Survey it before the bolts are tensioned and the welds made: after, the same millimetres become a structural modification. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Erection Engineering — Column Plumb Tolerance
- 1Enter your values — Column height (this tier), Measured out-of-plumb (sensible defaults are pre-filled).
- 2Read the live results: AISC allowance (h/500).
- 3Check the "with your numbers" line to see AISC 303: 1:500, with absolute caps (25 mm toward, 50 mm total in first 20 storeys) substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Erection Engineering — Column Plumb Tolerance?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula AISC 303: 1:500, with absolute caps (25 mm toward, 50 mm total in first 20 storeys) with authoritative sources cited on the page (AISC 303 — Code of Standard Practice for Steel Buildings; AISC 360 — Specification for Structural Steel Buildings)
- ✓The 1:500 rule is what 'plumb' legally means in steel — 16 mm on an 8 m tier.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the erection engineering — column plumb tolerance use?+
It evaluates AISC 303: 1:500, with absolute caps (25 mm toward, 50 mm total in first 20 storeys), exactly as published. Sources: AISC 303 — Code of Standard Practice for Steel Buildings; AISC 360 — Specification for Structural Steel Buildings. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
The 1:500 rule is what 'plumb' legally means in steel — 16 mm on an 8 m tier. Erection-planning estimate only. Member weights, connection capacities and tolerances for execution must come from the issued drawings, the EOR and the erection engineer — never from a generic calculator.
When is this calculator the right tool for the job?+
Column Plumb Tolerance for steel erection field engineering. A free structural steel delivery & erection tool. Survey it before the bolts are tensioned and the welds made: after, the same millimetres become a structural modification. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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