Sketch 2 NOTE: Shear Wall load shown is LRFD loading and DOES NOT INCLUDE the seismic load due to the weight of the shea

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Sketch 2 Note Shear Wall Load Shown Is Lrfd Loading And Does Not Include The Seismic Load Due To The Weight Of The Shea 1 (52.37 KiB) Viewed 16 times

Sketch 2 Note Shear Wall Load Shown Is Lrfd Loading And Does Not Include The Seismic Load Due To The Weight Of The Shea 2 (60 KiB) Viewed 16 times

Sketch 2 NOTE: Shear Wall load shown is LRFD loading and DOES NOT INCLUDE the seismic load due to the weight of the shear wall line. Roof LL = 300 pl Wall DL = 20 psf Roof DL = 200 pl Froof = 12,000 lbs Roof Roof Drag Strut B2 9'-0" 2nd Floor Drag Strut A2 Floor LL = 500 plf Floor DL = 100 plf Ffloor = 6,000 lbs Second Floor 1'-0" Shear wall A Shear wall B B1 A1 9'-0" 3-6" First(Ground)Floor 4' 4' 2' 2 3' 8 6x post Typical hold down detail at each shear wall end. The boundary member size is 6x or largder if needed.
GIVEN: 2-Story shear wall sketch is shown Froof = 12,000 lbs (LRED Load, does not include seismic load from shear wall) Ffloor = 6,000 lbs (LRFD Load, does not include seismic load from shear wall) Roof DL on shear wall = 200 plf Roof LL on shear wall = 300 plf Floor DL on shear wall = 100 plf Floor LL on shear wall = 500 plf Wall DL = 20 psf F/W roof = 0.3 (ratio of (ZF/EW)/(F/W) = 1.0) F/W floor = 0.2 (ratio of (EF/EW)/(F/W) = 1.4) DETERMINE: (1) Unit shear in the second floor shear walls. (5 points) (2) Sheathing, fastener size and fastener spacing in second floor shear wall A. (5 points) (3) Unit shear in the first floor shear walls. (5 points) (4) Sheathing, fastener size and fastener spacing in the first floor shear wall A. (5 points) (5) Draw Free Body diagram for shear wall B (show clearly all loads) (10 points) (6) Determine maximum Tension and Compression forces in boundary members of shear wall B1 at ground floor level. (Combination of Dead, Live and Seismic Load) (5 points). (7) Draw axial forces diagram for the drag strut of the Ground floor shear walls and floor diaphragm and determine maximum drag strut force. (5 points) (8) Design the drag strut nail splice at maximum tension force location. (5)