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Part 3: Attachments <br />1.Base Plate Check: <br />Per ICC ESR-4152 for U-Anchor 2400/2600: <br />2.Fasteners Check: <br />Per APA Technical Note Number E830D, Fastener Loads For Plywood Screws, the ultimate <br />lateral and uplift capacities of one #12 screw are 590 lbs and 315 lbs, respectively. <br />Factor of Safety = 4 <br />ASD Uplift Capacity of Each Attachment = (8) x (315 / 4) = 630 lbs OK <br />ASD Lateral Capacity of Each Attachment = (8) x (590 / 4) = 1180 lbs OK <br />497 lbs <br />401 lbs <br />Required Uplift Force Per Screw = <br />Required Shear Force Per Screw = <br />Attachment Checks: <br />From the ballast design report, the required ASD capacity of the attachments: <br />Page 13