A continuous hollow structural section measuring 3-1/2 inches by 2-1/2 inches by 1/4 inch frames into a steel bar joist, with a 2-1/2 inch dimension callout at the roof assembly. A steel angle ledger anchors to the precast concrete wall panel using a 1/4 inch fillet weld welded on three sides. Sheathing spans across the framing with an 18 gauge, 2 inch wide continuous galvanized strap on top of the plywood secured by two rows of boundary screws and four lines at nailing zones F or higher. Additional details show typical 3/16 inch fillet welds at the roof framing and structural connections.
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