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1"1 11 II[~ [l [J [J f] [J [1 I J~ll ,~ 11,..\, [1 [ J \1. 1 ] I] [I . I J . I;.'-;:~ I r - : II I ~~( TABLE 7.3.6A-GROUP ACI10N FACTORS, CgJ FOR BOLT OR LAG SCREW CONNECTIONS WITH WOOD SIDE MEMBERS2 For D ~ 1", s = 4", E = 1,400,000 psi Number of fasteners in a row .AJAm1 . AsI (D . . in2 2 4. 5 6 7 8 9 10 11 12 @ , ~. 5 0.98 0.84 0.75 0.68 0.61 0.55 0.50 0.45 0.41 0,38 12 0.99 0.96 0.92 0.87 0.81 0.76 0,70 0.65 0.61 0.57 0.53 0.5 20 0.99 0.98 0.95 0.91 0.87 0.83 0.78 0.74 0.70 0.66 0.62 28 1.00 0.98 0.96 0.93 0.90 0.81 0.83 0.19 0.76 0.72 0.69 40 1.00 0.99 0.97 0,95 0.93 0.90 0.87 0.84 0.81 0.78 0.75 64 1.00 0.99 0.98 0.97 0.95 0.93 0.91 0.89 0.87 0.84 0.82 5 1.00 0.97 0.91 0.85 0.78 0.71 0.64 0,59 0.54 0.49 0.45 12 1.00 0.99 0.96 0.93 0.88 0.84 0.79 0.74 0.70 0.65 0.61 1 20 1.00 0.99 0.98 0.95 0.92 0.89 0.86 ,0.82 0.78 0.75 0.71 28 1.00 0.99 0.98 0.97 0.94 0.92 0.89 '0.86 0,83 0.80 0.77 40 1.00 1.00 0.99 0.98 0.96 0.94 0.92 0,90 0.87 0.85 0.82 64 1.00 1.00 0.99 0.98 0.97 0.96 0.95 0,93 0.91 0.90 0.88 . 1. When AJAm ~ 1.0, use ArrI~s and use Am instead of As' 2. Tabulated ~up action factors (Cg) are conservalive for ~1 "'J~< 4" or E > 1,400,000 psi. ~:! 'Z c; I . oJf;: ~ ..'pl I TABLE 7.3.6B-GROUP ACTION FACTORS, CgJ FOR 4" SPLIT RING OR SHEAR PLATE CONNECTORS WITH WOOD SIDE MEMBERS2 For s = 9", E = 1,~,OOO psi Number of fasteners in a row AJAm1 AI s in2 2 3 4 5 6 7 8 9 10 11 12 . .. ... . 5 0.90 0.73 0.59 0.48 0.41 0.35 0.31 0.27 0.25 0,22 0.20 12 0.95 0.83 0.71 0.60 0.52 0.45 0.40 0.36 0.32 0.29 0.27 0.5 20 0.97 0.88 0,78 0.69 0,60 0.53 0.47 0.43 0.39 0,35 0.32 28 0.97 0.91 0.82 0.74 0,66 0,59 0.53 0.48 0.44 0.40 0.37 40 0.98 0.93 0.86 0.79 0,72 0.65 0.59 0.54 0.49 0,45 0.42 64 0.99 0.95 0.91 0.85 0.79 0.73 0.67 0.62 0.58 0.54 0.50 ... 5 1.00 0.87 0.12 0.59 0.50 0.43 0.38 0.34 0.30 0.28 0.25 12 1.00 0.93 0.83 0,72 0.63 0,55 0.48 0.43 0.39 0.36 0.33 1 20 1.00 0.95 0.88 0.79 0.71 0.63 0.57 0.51 0.46 0.42 0.39 28 1.00 0.97 0.91 0.83 0.76 0.69 0.62 0.57 0,52 0.47 0,44 40 1.00 0.98 0.93 0.87 0.81 0.75 0.69 0.~3 0,58 0.54 0,50 64 1.00 0.98 0.95 0,91 0.87 0.82 0.77 0.72 0,67 0.62 0.58 1. When AJAm > 1.0. use ArrlAs and use Am instead of As. 2. Tabulated group action factors (Cg) are conservative for 2-112" split ring connectors, 2-5/8" shear plate connectors, s < 9" or E > 1,400,000 psi. Mechanical Connections 31