Connection Screen — Web Local Check Trigger
Web Local Check Trigger — a screening-level structural check.
Concentrated loads — column over beam, jack point, heavy hanger — punch webs two ways: yielding (this screen) and crippling (the buckling cousin). Both checks travel in pairs in the spec; failing either buys a pair of stiffeners and a welding hour.
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.
Web Local Check Trigger — 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 — Web Local Check Trigger
Connection Screen — Web Local Check Trigger computes the governing relationship Rn ≈ (N + 5k)·tw·Fy — local yielding arm of the check pair live as you type. Concentrated loads — column over beam, jack point, heavy hanger — punch webs two ways: yielding (this screen) and crippling (the buckling cousin). Both checks travel in pairs in the spec; failing either buys a pair of stiffeners and a welding hour. 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 — Web Local Check Trigger
- 1Enter your values — Concentrated load/reaction, Web thickness, Bearing length N, Fy (sensible defaults are pre-filled).
- 2Read the live results: Web local yielding (screen).
- 3Check the "with your numbers" line to see Rn ≈ (N + 5k)·tw·Fy — local yielding arm of the check pair substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Connection Screen — Web Local Check Trigger?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula Rn ≈ (N + 5k)·tw·Fy — local yielding arm of the check pair with authoritative sources cited on the page (AISC 360 — Specification for Structural Steel Buildings; RCSC — Specification for Structural Joints Using High-Strength Bolts)
- ✓Concentrated loads — column over beam, jack point, heavy hanger — punch webs two ways: yielding (this screen) and crippling (the buckling cousin).
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the connection screen — web local check trigger use?+
It evaluates Rn ≈ (N + 5k)·tw·Fy — local yielding arm of the check pair, 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?+
Concentrated loads — column over beam, jack point, heavy hanger — punch webs two ways: yielding (this screen) and crippling (the buckling cousin). 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?+
Web Local Check Trigger. Both checks travel in pairs in the spec; failing either buys a pair of stiffeners and a welding hour. 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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