Laserfiche WebLink
Hood Weight <br /> W p = 448 lbs + 800 lbs (per CMC 508.4) = 1248 lbs <br /> Seismic design force, F p <br /> F p = 0.4S DS I p W p ( )( ) = (0.4)(1.17)(1)W p ( )( ) = 0.37W p (controlling equation) 𝐻𝑓 <br /> 𝑅 µ <br /> 𝐢𝐴𝑅 <br /> π‘…π‘π‘œ <br /> 1 . 8 <br /> 1 . 6 <br /> 1 . 4 <br /> 2 <br /> F p,max = 1.6S DS I p W p = (1.6)(1.17)(1)W p = 1.9W p <br /> F p,min = 0.3S DS I p W p = (0.3)(1.17)(1)W p = 0.35W p <br /> F p = 0.37W p = (0.37)(1248) = 462 lbs <br /> Horizontal seismic load effect, E h <br /> Q E = F p = 462 lbs <br /> E h = Q E = (1.0)(462 lbs) = 462 lbs ρ <br /> Vertical seismic load effect, E v <br /> E v = 0.2S DS D = (0.2)(1.17)(1248 lbs) = 292 lbs <br /> Basic Load Combinations <br /> 1.2D + E v + E h + L + 0.2S (load combination 6) <br /> 0.9D - E v + E h (load combination 7) <br /> Tension Force on each Connections <br /> T u = 1.2D + E v = (1.2(1248 lbs) + 292 lbs) = 1790 lb , per connection 1790/4 = 447 lbs <br /> Use ½β€ diam. Simpson Strong Bolt <br /> T u = 447 lb <<< 5255 lb <br />113 E Fourth St <br />4/16/2025