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7.0 Design Loads - Seismic (Cont.): <br />7.3 Lateral Seismic Force Check: <br />The necessity to add mechanical attachments can arise for several reasons. Building code requirements, roof load limits and array <br />shape all may come into play when determining their need. The table below provides the mechanical attachment requirements for <br />each sub-array within this project. <br />Nomenclature: <br />WP = Sub-Array Weight <br />FPL = Lateral Seismic Force <br />FRL = Lateral Seismic Resisting Force <br />Array Information Lateral Force Verification Results <br />Sub- <br />Array <br />Name <br />WP <br />(lbs.) <br />FPL <br />(lbs.) <br />FRL <br />(lbs.) <br />0.7 FPL - <br />FRL (lbs.) <br />MA's <br />Required <br />Total MA <br />Capacity <br />(lbs.) <br />MA's <br />Provided Acceptable <br />1.1 1,600 802 0 562 2 3,231 9 Yes <br />1.2 3,888 1,950 0 1,365 4 4,667 13 Yes <br />1.3 11,380 5,707 0 3,995 12 8,257 23 Yes <br />1.4 12,264 6,151 0 4,305 12 4,308 12 Yes <br />1.5 11,153 5,593 0 3,915 11 3,949 11 Yes <br />1.6 9,889 4,960 0 3,472 10 3,590 10 Yes <br />1.7 9,778 4,904 0 3,433 10 3,590 10 Yes <br />1.8 8,254 4,139 0 2,898 9 3,590 10 Yes <br />Totals:68,206 lbs 34,206 lbs.0 lbs.23,944 lbs.70 35,182 98 <br />Table 7.1 -Summary of Mechanical Attachment Requirements <br />* MA's Required = 0.7 FPL-FRL/MA strength <br />07/09/2024 <br />14 <br />PanelClaw, Inc., 1600 Osgood Street, Suite 2023, North Andover, MA 01845 <br />(978) 688.4900 - www.panelclaw.com