2726 W Strawberry Ln & Unit# 2 - Plan

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WoodWorks® Shearwalls 2726 Strawberry.wsw Jul. 21, 2024 11:26:22 At vertical element – Shearline Posit'n – Position of stud pack that hold-down is attached to: V Elem – Vertical element: column or strengthened studs required where not at wall end or opening L or R End – At left or right wall end L or R Op n – At left or right side of opening n t @ Op n – Uplift force t at opening n from offset opening in perforated wall above, from SDPWS 4.3.6.4.2.1 Location – Co-ordinates in Plan View Tensile Hold-down or Compressive Stud Force – Upwards force on hold-down at one end of the wall or downward force on bottom plate under studs at the other end, for each force direction. Includes forces transferred from upper levels. Shear – Overturning component = V x h / beff from SDPWS Eqn. 4.3-7; V = force on segment, ASD-factored by 0.70; h = wall height , beff = wall segment length – (tension stud pack width + hold-down anchor bolt offset) – (1/2 compression stud pack width). For perforated walls = V x h / Co sum (bi) from SDPWS Eqn. 4.3-8. Dead – Dead load resisting component, factored for ASD by 0.60 for tension and 1.0 for compression Ev – Vertical seismic load effect from ASCE 7 12.4.2.2 = -0.2 Sds x ASD factor x unfactored D = 0.233 SDS x factored D. Refer to Seismic Information table for more details. Cmb'd – Sum of ASD-factored overturning, dead and vertical seismic forces. May also include the uplift force t from perforated walls from SDPWS 4.3.6.4.2.1 when openings are staggered. Hold-down – Device model number from hold-down database; "Compression" for bearing of end stud pack on bottom plate Cap – Hold-downs: Allowable ASD tension load from database; Compression: Allowable ASD bearing force = Ct CM Cb Fcp A; A = cross sectional area of end studs. Refer to Framing materials table for details. Crit. Resp. – Critical Response = Combined ASD force/Allowable ASD tension load Notes: HDU2-SDS2.5 for studs with thickness > 0'-3" and depth > 0'-3.5" : Uses 6 1/4" x 2.5" SDS heavy-duty screws; 5/8" anchor bolt. Combined force from ASCE 7 2.4.1 load combination 10 = - (0.6D - 0.7Ev + 0.7Eh); Eh (from 12.4.2.1) = - shear overturning force Refer to the Shear Line Dimensions table for wall height h, effective segment length beff and perforated wall adjusted sum of bi, to the Story Table for joist depth, and to the Shear Results table for perforated factor Co. Designer is responsible for design of connection from wall to floor or foundation for shear force shown in Shear Results table. Refer to SDPWS 4.3.6.4.3 for foundation anchor bolt requirements. 19 2726 W Strawberry Ln & Unit# 23/17/2025