Structural · S-NHXN6

Steel Deck Opening Reinforcement and Framing Detail

Materials

Elements

Beams Ceilings Decks Reinforcing Roof / Floor Openings

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Framing and reinforcement configurations for penetrations cut through composite steel decking. Steel angles measuring 1-3/4 inches by 1-3/4 inches by 1/4 inch or one-and-one-half-inch by three-inch by one-eighth-inch steel tubes are placed on top of the Formlok deck to frame the opening. The reinforcing members extend three webs past the deck opening typically, with additional reinforcing bars placed at the corners of openings above the tubes. The drawings specify limits for cutting webs based on module sizes, restricting cuts to two adjacent webs for twelve-inch module decks and three adjacent webs for six-inch and eight-inch module decks.

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