9538 HOLLY DR 2025-07-10 - Laserfiche WebLink

WEST I_ COAST I �` -.. Il 9540 Semiahmoo Parkway (425)347-8998 STRUCTURAL r , t #137 wcse.net E NGINEERING,INC. Blaine,WA 98230 Two Story Shear Wall Design t 1 Shear Wall Grid Location: Grid Line : 4 Misc. Info: w Overturning Moment (OTM) H upper OTM = 12.1 k-ft vm Resisting Moment(RM) Aspect Ratio Check(2w/h)= 1.33 }-------- - H total W Above = 0.2 kips W Middle= 0.1 kips W Wall = 0.5 kips w,mm,a. H lower • RM = 2.3 k-ft Uplift Force @ end of Shear Wall (T) : t.. .- . _. I T = 1.8 kips T C Wind or Seismic Critical : W Shear Wall Base Shear(Vb) : 178 plf V t : 1/2(3.03)/16 = 0.095 klf Internal/External ( I/E) : E V m : 1/2(2.65)/16 = 0.083 klf Nailing Designation : SW2 H upper= 9.0 ft H lower= 8.0 ft H total = 17.0 ft L = 5.3 ft Holdown Force(T) : 1.8 kips Trib. Length Upper(A) : 4 ft Lower( M) : 4 ft Holdown Designation : Dead Load Above(w above) : 15 psf Lower(w lower) : 10 psf Reliability - Redundancy Factor: Seismic Base Shear: Roof Diaphragm: 3.74 kips 2nd Floor Walls: 3.74 kips 66% 2nd Floor Diaph: 1.93 kips 1st Floor Walls: 5.67 kips 100% Note: Seismic force-resisting system shall consist of at least two bays of seismic force resisting perimeter framing on each side of the structure in each orthogonal direction at each story resisting more than 35 percent of the base shear. The number of bays for a shear wall shall be calculated as the length of shear wall divided by the story height or two times the length of shear wall divided by the story height for light-framed construction. Shear Wall Bays in X- Direction Shear Wall Bays in Y - Direction 2nd Floor Side 1: 5.75 Side 2: 4.00 Side 1: 6.75 Side 2: 8.50 1st Floor Side 1: 8.00 Side 2: 4.00 Side 1: 8.00 Side 2: 8.00 No increase in Seismic Force Project: W4861 Sheet No: 17 9/13/2023