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SIMPLE ENGINEERING <br />Project:Warbler Street Residence Date:9/24/2023 <br />2314 S. Warbler Street <br />Santa Ana, CA 92704 <br />Description: Roof Diaphragm By:G. Hernandez <br />Roof Diaphragm force 8896 lb (from seismic base shear calculation) <br />Floor Diaphragm force 0 lb (from seismic base shear calculation) <br /> <br />Check diaphragm shear based on diaphragm design force. <br />Wall (grid <br />Line) <br />Fproof <br />(lb) <br />b <br />(ft) <br />v (ASD) = <br />F(0.7)/2b (plf) <br />Sheathing <br />Type <br />Allowable <br />Shear ¹ <br />(plf) <br />Boundary <br />Nail <br />Spacing <br />(in.) <br />Edge Nail <br />Spacing <br />(in.) <br />1 8896 lb 7.67 406 15/32" APA 525 4 6 <br />Wall (grid <br />Line) <br />Fproof <br />(lb) <br />b <br />(ft) <br />v (ASD) = <br />F(0.7)/2b (plf) <br />Sheathing <br />Type <br />Allowable <br />Shear ¹ <br />(plf) <br />Boundary <br />Nail <br />Spacing <br />(in.) <br />Edge Nail <br />Spacing <br />(in.) <br />A 8896 lb 25 125 15/32" APA 525 4 6 <br />Notes: <br />North-South Diaphragm Shear at Roof Level <br />East-West Diaphragm Shear at Roof Level <br />1. From IBC Table 2306.2.1(1), the allowable shear of 385 plf is based on 15/32-inch APA or Teco <br />Performance-rated wood structural panels (DOC PS1 or PS2) with blocked edges and 10d common nails with <br />a min. 1 1/2-inch penetration <br />2. From IBC Table 2306.2.1(1), the allowable shear of 320 plf is based on 19/32-inch APA or Teco <br />Performance-rated wood structural panels (DOC PS1 or PS2) with blocked edges and 10d common nails with <br />a min. 1 1/2-inch penetration <br />3. Note that forces are strenght level, and shear in wall is multiplied by 0.7 to convert to allowable stress <br />design. <br />20 <br />2314 S Warbler St <br />ADDITION12/12/2024