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7.0 Design Loads - Seismic (Cont.):
<br />7.4 Vertical Seismic Force Check:
<br />Mechanical attachments may be required for several reasons including building code, roof load limits and array shape. The table
<br />below provides the mechanical attachment requirements for each sub-array within this project.
<br />
<br />Nomenclature:
<br />WP = Sub-Array Weight
<br />FPV = Vertical Seismic Force
<br />FRV = Vertical Seismic Resisting Force
<br />
<br />Array Information Vertical Force Verification Results
<br />Sub-
<br />Array
<br />Name
<br />WP
<br />(lbs.)
<br />FPV
<br />(lbs.)
<br />FRV
<br />(lbs.)
<br />0.7 FPV -
<br />FRV (lbs.)
<br />MA's
<br />Required
<br />Total MA
<br />Capacity
<br />(lbs.)
<br />Total
<br />MA's
<br />Provided
<br />Acceptable
<br />1.1 6,037 1,259 3,622 -2,741 0 2,276 7 Yes
<br />1.2 20,144 4,200 12,086 -9,146 0 0 0 Yes
<br />1.3 3,447 719 2,068 -1,565 0 0 0 Yes
<br />1.4 4,725 985 2,835 -2,145 0 0 0 Yes
<br />1.5 5,506 1,148 3,303 -2,500 0 0 0 Yes
<br />1.6 5,300 1,105 3,180 -2,406 0 0 0 Yes
<br />1.7 3,310 690 1,986 -1,503 0 0 0 Yes
<br />1.8 20,146 4,200 12,087 -9,147 0 0 0 Yes
<br />1.9 10,508 2,191 6,305 -4,771 0 0 0 Yes
<br />1.10 3,250 678 1,950 -1,476 0 0 0 Yes
<br />1.11 4,324 901 2,594 -1,963 0 0 0 Yes
<br />1.12 2,127 443 1,276 -966 0 0 0 Yes
<br />Total:88,823 lbs.18,518 lbs.53,294 lbs.-40,331 lbs.0 2,276 7
<br />
<br />Table7.2 - Summary of Mechanical Attachment Requirements
<br />* MA's Required = 0.7 FPV - FRV/MA strength
<br />11/04/2024
<br />APPROVED FOR CONSTRUCTION
<br />17
<br />PanelClaw, Inc., 1600 Osgood Street, Suite 2023, North Andover, MA 01845
<br />(978) 688.4900 - www.panelclaw.com
<br />1330 E Seventeenth
<br />St4/10/2025
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