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5.0 Design Loads - Wind (Cont.): <br />5.1.2 Global Wind Shear Summary Table: <br />Mechanical attachments may be required for several reasons including building code, roof load limits and array shape. The <br />table below provides the mechanical attachment requirements for each sub-array within this project. <br />Applied Load Resisting Load Code Check <br />Sub- <br />Array <br />Name <br />FL-D = <br />Wind <br />Uplift <br />(lbs.) <br />FD = <br />Wind <br />Drag <br />(lbs.) <br />DL = <br />Total <br />Dead <br />Load <br />(lbs.) <br />Maximum <br />Allowable <br />Mechanical <br />Attachment <br />Strength (lbs.) <br />Total MA <br />Capacity <br />(lbs.) <br />Check <br />Calculated <br />Factor of <br />Safety* <br />Check <br />1.1 2,018 559 1,600 359 3,231 2.87 OK <br />1.2 2,236 699 3,888 359 4,667 4.43 OK <br />1.3 1,904 539 11,380 359 8,257 12.28 OK <br />1.4 1,632 571 12,264 359 4,308 11.33 OK <br />1.5 1,632 462 11,153 359 3,949 11.02 OK <br />1.6 1,325 356 9,889 359 3,590 12.29 OK <br />1.7 2,740 780 9,778 359 3,590 5.80 OK <br />1.8 2,574 778 8,254 359 3,590 5.38 OK <br />Total:16,061 lbs.4,744 lbs.68,206 35,182 lbs. <br />Table 5.2 Summary of Mechanical Attachment Requirements <br />* Back calculated factor of safety provided to determine factor of safety applied to dead load in lieu of 0.6 in ASCE 7-16 equation 7, BACK <br />CALCULATED FACTOR OF SAFETY = (DEAD LOAD+MECHANICAL ATTACHMENT)/(((.6)WIND SHEAR/FRICTION)+(.6)WIND <br />UPLIFT) <br />07/09/2024 <br />10 <br />PanelClaw, Inc., 1600 Osgood Street, Suite 2023, North Andover, MA 01845 <br />(978) 688.4900 - www.panelclaw.com