Structural · S-JJ7VC

Steel Joist Expansion Joint and Deck Connection Details

Materials

Steel Metal (misc.)

Elements

Roofs Decks Expansion / Control Joints Connections / Plates

Connections

Bolted Connection Deck Attachment Expansion / Slip Connection

About this detail

An eighteen-gauge continuous bent plate spans between columns at the expansion joint with metal roof deck and bent plate fastened through both joist chords. The steel joist supplier provides plugs between top chord angles to transfer shear forces per the deck shear schedule in directions perpendicular and parallel to the joist grid. A half-inch by five-inch by five-inch plate and four-by-four by five-sixteenths angles connect with one-inch diameter typical bolts. A half-inch minimum thickness stiffener plate is provided at expansion plates, deck connections, and joist supports. Metal roof decking laps the bent plate with a two-inch minimum bearing requirement on both chords.

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