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WoodWorks® Shearwalls 2352.wsw Feb. 20, 202313:29:46 <br />MWFRS HOLD-DOWN DISPLACEMENT (flexible wind design) <br />These displacements are used to determine deflections for force distribution <br />Wall, <br />Hold- <br />Uplift <br />Elong / Disp <br />Slippage <br />Shrink <br />Crush+ <br />Total <br />Hold <br />segment <br />Dir <br />down <br />force <br />Manuf <br />Add <br />da <br />Pf da <br />da <br />Extra <br />da <br />Defl <br />Ibs <br />in <br />in <br />in <br />Ibs in <br />in <br />in <br />in <br />in <br />Level 1 <br />Line 1 <br />1-1,2 <br />S->N <br />HDU8-SDS <br />6970 <br />.113 <br />.000 <br />0.113 <br />- - <br />.068 <br />0.04 <br />0.22 <br />0.99 <br />N->S <br />HDU8-SDS <br />6699 <br />.109 <br />.000 <br />0. 109 <br />- - <br />.068 <br />0.04 <br />0.22 <br />0.43 <br />Line 2 <br />2-1,2 <br />S->N <br />HDU8-SDS <br />6052 <br />.098 <br />.000 <br />0. 098 <br />- - <br />.068 <br />0.04 <br />0.21 <br />0.41 <br />N->S <br />HDU8-SDS <br />6312 <br />.103 <br />.000 <br />0.103 <br />- - <br />.068 <br />0.04 <br />0.21 <br />0.42 <br />Line A <br />A-1,1 <br />W->E <br />HDU2-SDS <br />98 <br />.003 <br />.000 <br />0.003 <br />- - <br />.068 <br />0.04 <br />0.11 <br />0.08 <br />E->W <br />HDU2-SDS <br />23 <br />.001 <br />.000 <br />0.001 <br />- - <br />.068 <br />0.04 <br />0.11 <br />0.08 <br />A-1,2 <br />W->E <br />HDU2-SDS <br />16 <br />.000 <br />.000 <br />0.000 <br />- - <br />.068 <br />0.04 <br />0.11 <br />0.08 <br />E->W <br />HDU2-SDS <br />91 <br />.003 <br />.000 <br />0.003 <br />- - <br />.068 <br />0.04 <br />0.11 <br />0.08 <br />Line B <br />B-1,1 <br />W->E <br />HDU2-SDS <br />1434 <br />.041 <br />.000 <br />0. 041 <br />- - <br />.068 <br />0.04 <br />0.15 <br />0.30 <br />E->W <br />HDU2-SDS <br />2126 <br />.061 <br />.000 <br />0. 061 <br />- - <br />.068 <br />0.04 <br />0.17 <br />0.34 <br />B-1,2 <br />W->E <br />HDU2-SDS <br />2359 <br />.068 <br />.000 <br />0. 068 <br />- - <br />.068 <br />0.04 <br />0.18 <br />0.35 <br />E->W <br />HDU2-SDS <br />1 1667 <br />.047 <br />.000 <br />0. 047 <br />- - <br />.068 <br />1 0.04 <br />0.15 <br />1 0.31 <br />Wall, <br />Hold- <br />Uplift <br />Elong / Disp <br />Slippage <br />Shrink <br />Crush+ <br />Total <br />Hold <br />segment <br />Dir <br />down <br />force <br />Manuf <br />Add <br />da <br />Pf da <br />da <br />Extra <br />da <br />Defl <br />Ibs <br />in <br />in <br />in <br />Ibs in <br />in <br />in <br />in <br />in <br />Level 2 <br />Line 1 <br />1-2 <br />S->N <br />HDU2-SDS <br />697 <br />.037 <br />.000 <br />0.037 <br />- - <br />.298 <br />0.04 <br />0.32 <br />0.28 <br />N->S <br />HDU2-SDS <br />697 <br />.019 <br />.001 <br />0.019 <br />- - <br />.298 <br />0.04 <br />0.31 <br />0.26 <br />Line 2 <br />2-1,1 <br />S->N <br />HDU2-SDS <br />1465 <br />.084 <br />.000 <br />0.084 <br />- - <br />.298 <br />0.04 <br />0.37 <br />0.79 <br />N->S <br />HDU2-SDS <br />1141 <br />.033 <br />.001 <br />0.034 <br />- - <br />.298 <br />0.04 <br />0.32 <br />0.69 <br />2-1,2 <br />S->N <br />HDU2-SDS <br />1198 <br />.069 <br />.000 <br />0.069 <br />- - <br />.298 <br />0.04 <br />0.36 <br />0.91 <br />N->S <br />HDU2-SDS <br />1522 <br />.099 <br />.001 <br />0.045 <br />- - <br />.298 <br />0.04 <br />0.33 <br />0.85 <br />Line A <br />A-2 <br />Both <br />HDU2-SDS <br />558 <br />.032 <br />.000 <br />0.032 <br />- - <br />.298 <br />0.04 <br />0.32 <br />0.23 <br />A-3 <br />Both <br />HDU2-SDS <br />0 <br />.000 <br />.000 <br />0.000 <br />- - <br />.000 <br />0.00 <br />0.00 <br />0.00 <br />Line B <br />B-1,2 <br />Both <br />HDU2-SDS <br />875 <br />.049 <br />.000 <br />0.050 <br />- - <br />.298 <br />0.04 <br />0.34 <br />0.58 <br />B-1,3 <br />Both <br />1 HDU2-SDS <br />1 411 <br />1 .024 <br />.000 <br />0.029 <br />1 - -1 <br />.298 <br />1 0.09 <br />1 0.31 <br />1 0.60 <br />Legend: <br />Wall, segment - Wall and segment between openings, e.g. B-3, 2 = second segment on Wall 3 on Shearline B <br />Dir - Force direction <br />Uplift force (P) -Accumulated ASD hold-down tension force from overturning, dead and wind uplift. For perforated walls, T from SDPWS 4.3-8 is used for <br />overturning <br />da - Vertical displacements due to the following components: <br />Elong/Disp - Elongation when slippage calculated separately, displacement when combined elongation/slippage used <br />Manuf- Using manufacturer's value for anchor bolt length, or no bolt contribution for connector -only elongation. <br />Unless marked with * = (ASD uplift force /ASD hold-down capacity) x max ASD elongation or displacement <br />* - Maximum strength -level elongation or displacement is used. May result in higher than actual displacements for lightly loaded hold-downs, causing <br />the segment to draw less force due to lower than actual stiffness. <br />Add - Due to longer anchor bolt length than manufacturer's value, or entire bolt length for connector -only elongation = PL / (Ab x Es); <br />Ab - bolt cross -sectional area; <br />Es = steel modulus = 29000000 psi, <br />L=Lb -Lh; <br />Lb = Total bolt length shown in Storey Information table, <br />Lh = Manufacturer's anchor bolt length for given displacement/elongation from hold-down database. <br />Slippage - Due to vertical slippage of hold-down fasteners attached to stud(s) when not combined with elongation <br />Pf = ASD uplift force P /number of fasteners <br />Bolts: = Pf/(270,000 DAl.5) (NDS 11.3.6) ; D = bolt diameter <br />Nails: = an, from SDPWS Table C4.2.2D using Pf for Vn and values for Wood Structural Panel <br />Shrink - Wood shrinkage = 0.002 x (19% fabrication - 10% in-service moisture contents) x Ls <br />Ls = Perp.-to-grain length between fasteners subject to shrinkage, shown in Storey Information table <br />Crush + Extra - 0.04" wood crushing at compression end of wall segment plus extra displacement due to mis-cuts, gaps, etc. <br />Total da = Elong/Disp + Slippage + Shrink + Crush + Extra <br />Hold Defl -Horizontal deflection = h/b x da (4th term in the deflection equation SDPWS C4.3.2-1) <br />h = wall height, b = segment length between openings, h,b values in Deflection table. For end segments from force -transfer walls, his the average of the <br />distance from bottom of opening to top of wall and the wall height. <br />16 <br />Page 41 of 63 <br />