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WoodWorks®Shearwalls 2352.wsw Feb.20,2023 13:29:46 MWFRS HOLD-DOWN DISPLACEMENT(flexible wind design) These displacements are used to determine deflections for force distribution Wall, Hold- Uplift Elong/Disp Slippage Shrink Crush+ Total Hold segment, Dir down force Manuf Add da Pf da da Extra da Defl lbs in in in lbs in in in in in Level 1 Line 1 1-1,2 S->N HDU8-SDS 6970 .113 .000 0.113 - - .068 0.04 0.22 0.44 N->S HDU8-SDS 6699 .109 .000 0.109 - - .068 0.04 0.22 0.43 Line 2 2-1,2 S->N HDU8-SDS 6052 .098 .000 0.098 - - .068 0.04 0.21 0.41 N->S HDUS-SDS 6312 .103 .000 0.103 - - .068 0.04 0.21 0.42 Line A A-1,1 W->E HDU2-SDS 98 .003 .300 0.003 - - .068 0.04 0.11 0.08 E->W HDU2-SDS 23 .001 .000 0.001 - - .068 0.04 0.11 0.08 A-1,2 W->E HDU2-SDS 16 .000 .000 0.000 - - .068 0.04 0.11 0.08 E->W HDU2-SDS 91 .003 .000 0.003 - - .068 0.04 0.11 0.08 Line B B-1,1 W->E HDU2-SDS 1434 .041 .000 0.041 - - .068 0.04 0.15 0.30 E->W HDU2-SDS 2126 .061 .000 0.061 - - .068 0.04 0.17 0.34 B-1,2 W->E HDU2-SDS 2359 .068 .000 0.068 - - .068 0.04 0.18 0.35 E->W HDU2-SDS 1667 .047 .000 0.047 - - .068 0.04 0.15 0.31 Wall, Hold- Uplift Elong/Disp Slippage Shrink Crush+ Total Hold segment Dir down force Manuf Add da Pf da da Extra da Defl lbs in in in lbs in in in in in Level 2 Line 1 1-2 S->N HDU2-SDS 647 .037 .000 0.037 - - .248 0.04 0.32 0.28 N->S HDU2-SDS 647 .019 .001 0.019 - - .248 0.04 0.31 0.26 Line 2 2-1,1 S->N HDU2-SDS 1465 .084 .000 0.084 - - .248 0.04 0.37 0.79 N->S HDU2-SDS 1141 .033 .001 0.034 - - .248 0.04 0.32 0.69 2-1,2 S->N HDU2-SDS 1198 .069 .000 0.069 - - .248 0.04 0.36 0.91 N->S HDU2-SDS 1522 .044 .001 0.045 - - .248 0.04 0.33 0.85 Line A A-2 Both HDU2-SDS 558 .032 .000 0.032 - - .248 0.04 0.32 0.23 A-3 Both HDU2-SDS 0 .000 .000 0.000 - - .000 0.00 0.00 0.00 Line B B-1,2 Both HD02-SDS B75 .049 .000 0.050 - - .248 0.04 0.34 0.58 B-1,3 Both HDU2-SDS 411 .024 .000 0.024 - - .248 0.34 0.31 0.60 Legend: Wall,segment-Wall and segment between openings,e.g. 8-3,2=second segment on Wall 3 on Shearline 8 Dir-Force direction 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 overturning da-Vertical displacements due to the following components: Elong/Disp-Elongation when slippage calculated separately;displacement when combined elongation/slippage used Manuf-Using manufacturer's value for anchor bolt length,or no bolt contribution for connector-only elongation. Unless marked with*=(ASD uplift force/ASD hold-down capacity)x max ASD elongation or displacement *-Maximum strength-level elongation or displacement is used.May result in higher than actual displacements for lightly loaded hold-downs,causing the segment to draw less force due to lower than actual stiffness. Add-Due to longer anchor bolt length than manufacturer's value,or entire bolt length for connector-only elongation= PL/(Ab x Es); Ab-bolt cross-sectional area; Es=steel modulus=29000000 psi; L=Lb-Lh; Lb=Total bolt length shown in Storey Information table; Lh=Manufacturer's anchor bolt length for given displacement/elongation from hold-down database. Slippage-Due to vertical slippage of hold-down fasteners attached to stud(s)when not combined with elongation Pf=ASD uplift force P/number of fasteners Bolts: = Pf/(270,000 D^1.5) (NDS 11.3.6);D=bolt diameter Nails: =en,from SDPWS Table C4.2.2D using Pf for Vn and values for Wood Structural Panel Shrink- Wood shrinkage= 0.002 x(19%fabrication-10% in-service moisture contents)x Ls Ls=Perp.-to-grain length between fasteners subject to shrinkage,shown in Storey Information table Crush+Extra-0.04"wood crushing at compression end of wall segment plus extra displacement due to mis-cuts,gaps,etc. Total da= Elong/Disp+Slippage+Shrink+Crush+Extra Hold Defl-Horizontal deflection= h/b x da (4th term in the deflection equation SDPWS C4.3.2-1) h=wall height;b=segment length between openings;h,b values in Deflection table.For end segments from force-transfer walls,h is the average of the distance from bottom of opening to top of wall and the wall height. 16 Page 41 of 63