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Diaphragm Depth @ GL C dd =78.5 ft <br />Maximum Diaphragm Shear (GL C, LS) vmax =2270 plf <br />Maximum Diaphragm Shear (GL C, IO) vmax =1066 plf <br />Diaphragm Shear Capacities <br />3/4" Structural I Plywood (blocked), 10d @ 6" E.N. <br />Diaphragm Shear Capacity (Case 1) vs =720 plf (SPDWS Table 4.2C) <br />How much capacity to add for double row of boundary nails at max shear locations? <br />Wood Diaphragm M-Factors m, IO =1.5 (Table 12-3, blocked/chorded) <br />m, LS =3.0 (Table 12-3, blocked/chorded) <br />Nominal-to-Expected Strength F =1.5 <br />Diaphragm Capacity (LS) V =3240 plf <br />Diaphragm Capacity (IO) V =1620 plf <br />Diaphragm DCR (LS) DCR =0.70 <br />Diaphragm DCR (IO) DCR =0.66 <br />Collectors/Drags and Splices <br />Collector Splice Connections <br />MST-48 Straps at splice connections (3/S5). <br />MST-48 Catalog Capacity MST48 =5310 lb <br />M-factors for metal to wood nails M (LS) =4.0 <br />M (IO) =2.0 <br />Nominal-to-Expected Strength F =1.5 <br />E-W Collectors GL 1.4 GL 2 GL 3 GL 3.5 <br />Diaphragm Shear from North (LS) Vn =88069 123817 174929 36583 lb <br />Diaphragm Shear from North (IO) Vn =41333 58111 82099 17169 lb <br />Diaphragm Shear from South (LS) Vs =90060 171932 67386 142966 lb <br />Diaphragm Shear from South (IO) Vs =42268 80693 31626 67098 lb <br />Diaphragm Depth, North Side dd =100.5 100.5 78.5 100.5 ft <br />Diaphragm Depth, South Side dd =100.5 78.5 100.5 100.5 ft <br />Wall Length, North Side Lwn =30.5 26.5 23.0 20.3 ft <br />Wall Length, South Side Lws =30.5 4.5 45.0 20.3 ft <br />Collector Length, East Side Lce =34.3 50.0 25.3 13.0 ft <br />Collector Length, West Side Lcw =0.0 0.0 30.0 13.0 ft <br />Collector Extension Into Control Area L.ca =N/A 8.0 N/A N/A ft <br />Collector Splice Force, East Side (LS) Fc.e =94223 238662 73419 50468 lb <br />Collector Splice Force, East Side (IO) Fc.e =44221 112011 34458 23686 lb <br />Collector Splice Force, West Side (LS) Fc.w =0 0 43615 50468 lb <br />Collector Splice Force, West Side (IO) Fc.w =0 0 20470 23686 lb <br />Collector Splice Force (LS) Fc =94223 238662 73419 50468 lb <br />Collector Splice Force (IO) Fc =44221 112011 34458 23686 lb <br />Existing Splice Nails DCR (LS) DCR =2.96 N/A 2.30 N/A <br />Existing Splice Nails DCR (IO) DCR =2.78 N/A 2.16 N/A <br />Diaphragm Depth Req (North, LS)dd.req = 27.2 38.2 54.0 11.3 ft <br />Diaphragm Depth Req (North, IO)dd.req = 25.5 35.9 50.7 10.6 ft <br />Diaphragm Depth Req (South, LS)dd.req = 27.8 53.1 20.8 44.1 ft <br />Diaphragm Depth Req (South, IO)dd.req = 26.1 49.8 19.5 41.4 ft <br />Collector Length Req Lc.req = 0.0 48.6 31.0 23.9 ft <br />Collector Length DCR Lc.DCR =0.00 0.97 0.56 0.92 < 1.00, OK <br />Control Area Depth d.control =38.7 36.0 N/A N/A ft <br />Collector Force at Control Area Boundary (LS)Fc = N/A 123200 N/A N/A lb <br />Collector Force at Control Area Boundary (IO)Fc = N/A 57822 N/A N/A lb <br />Check TJL Functionality as Collectors within Control Area <br />TJL Top Chord Size (Judged) Aw = 2x4 =5.25 in^2 <br />Tensile Strength (No. 1) Ft =800 psi (NDS Table 4A) <br />Format Conversion Factor Kf =2.7 <br />Resistance Factor Φ =1 <br />Size Factor Cf =1.3 <br />Other Factors Cm = Ct = Ci =1 <br />Adjusted Tensile Strength Ft' =2808 psi <br />Ft' =14742 lb <br />Wood Diaphragm M-Factors m, IO =1.5 <br />m, LS =3.0 <br />Nominal-to-Expected Strength F =1.5 <br />TJL Top Chords Used as Collectors n =2 <br />Total Strength (LS) Pn.ls = Ft'*m*F =132678 lb <br />Total Strength (IO) Pn.io = Ft'*m*F =66339 lb <br />7 of 100 <br />1327 S Grand Ave <br />12/12/2024