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NYC Building Code

§ 3305.2.4.1 — § 3305.2.4.1

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What is NYC BC § 3305.2.4.1?

Quick Answer

This section mandates that open web steel joists be securely attached to the support structure at least at one end on both sides of the seat immediately upon placement. An exception allows for pre-assembled panels to be connected at each corner before releasing hoisting cables. Applies to construction professionals involved in steel joist installation.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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3305.2.4.1 Attached to support structure.

BC § 3305.2.4.1

Open web steel joists shall be attached to the support structure, at least at one end on both sides of the seat, immediately upon placement in the final erection position and before additional joists are placed. Exception: Open web steel joists that have been pre-assembled into panels with bridging shall be attached to the structure at each panel corner with sufficient bolted or welded connections before the hoisting cables are released.

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