Structural · S-YVXAJ

Typical Small Opening In Floor Slab

Materials

Elements

Floors / Slabs Decks Reinforcing Roof / Floor Openings

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Small core openings through concrete on metal deck are framed with 1 3/4 inch by 1 3/4 inch by 1/4 inch angles placed on top of the deck extending three webs past the opening typical. Openings must be blocked out and the deck left intact during concrete placement, with the deck material removed only after the concrete has cured. This detail applies to holes cutting no more than two adjacent webs for a 12 inch module deck. Spacing dimensions A and B govern whether closely spaced openings are treated independently or grouped as a single larger opening requiring further reinforcement.

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