$3\mathrm{.}20$ Given: The plan and section of the building in Fig. $3.$E$.$ Roof dead load D $=10$ psf$,$ floor dead load D $=18$ psf plus $10$ psf for interior partitions, exterior wall dead load D $=16$ psf$.$ Basic wind speed $=85$ mph$.$ Exposure C and ASCE $7$ are specified. Enclosed bearing wall structure has standard occupancy classification. The building has a bearing wall system, braced with wood structural panel shearwalls. The building is located in Sacramento, California, with a mapped short$-$period spectral acceleration of $0\mathrm{.}56$g and a mapped one$-$second spectral acceleration of $0\mathrm{.}22$g$.$ Site Class B$,$ Occupancy Category IV$,$ should be assumed. Neglect any wall$0$UCILLIYS.For the transverse direction using ASD load combinations:a$.$ The unit shear in the roof diaphragmb. The unit shear in the floor diaphragmc. The unit shear in the second$-$floor shearwalld. The umt shear in the hrst$-$floor shearwalli