Connection Screen — Bolt Bearing on Plate
Bolt Bearing on Plate — a screening-level structural check.
Bearing rarely governs on healthy plates but always governs on thin ones: a 6 mm shear tab caps the bolt long before the bolt itself shears. The d×t product is the tell — small bolt in thick plate or big bolt in thin plate both deserve this thirty-second check.
Formula
Note: Screening only — NOT a connection design. All capacities must be verified by a licensed engineer against the governing code, including the limit states this simplified check omits.
Bolt Bearing on Plate — a screening-level structural check. A free structural steel delivery & erection tool — no sign-up, no upload, instant results in your browser.
About Connection Screen — Bolt Bearing on Plate
Connection Screen — Bolt Bearing on Plate computes the governing relationship φRn = 0.75 × 2.4·d·t·Fu (deformation limited) live as you type. Bearing rarely governs on healthy plates but always governs on thin ones: a 6 mm shear tab caps the bolt long before the bolt itself shears. The d×t product is the tell — small bolt in thick plate or big bolt in thin plate both deserve this thirty-second check. 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 Connection Screen — Bolt Bearing on Plate
- 1Enter your values — Bolt diameter, Plate thickness, Plate tensile Fu, Deformation a concern? (1/0) (sensible defaults are pre-filled).
- 2Read the live results: Design bearing per bolt.
- 3Check the "with your numbers" line to see φRn = 0.75 × 2.4·d·t·Fu (deformation limited) substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Connection Screen — Bolt Bearing on Plate?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula φRn = 0.75 × 2.4·d·t·Fu (deformation limited) with authoritative sources cited on the page (AISC 360 — Specification for Structural Steel Buildings; RCSC — Specification for Structural Joints Using High-Strength Bolts)
- ✓Bearing rarely governs on healthy plates but always governs on thin ones: a 6 mm shear tab caps the bolt long before the bolt itself shears.
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the connection screen — bolt bearing on plate use?+
It evaluates φRn = 0.75 × 2.4·d·t·Fu (deformation limited), exactly as published. Sources: AISC 360 — Specification for Structural Steel Buildings; RCSC — Specification for Structural Joints Using High-Strength Bolts. 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?+
Bearing rarely governs on healthy plates but always governs on thin ones: a 6 mm shear tab caps the bolt long before the bolt itself shears. Screening only — NOT a connection design. All capacities must be verified by a licensed engineer against the governing code, including the limit states this simplified check omits.
When is this calculator the right tool for the job?+
Bolt Bearing on Plate. The d×t product is the tell — small bolt in thick plate or big bolt in thin plate both deserve this thirty-second check. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Do I need to install anything or create an account?+
No. The tool is pure client-side JavaScript: open the page and it works, offline once loaded, with no account, no quota and no data leaving your device.
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