Given: The plan and section of the building in Fig. 3.A. Roof dead load D 12 psf, and the walls are 6-in.-thick concrete. The building has a bearing wall system, braced with special reinforced...

Given: The plan and section of the building in Fig. 3.A. Roof dead load D 12 psf, and the walls are 6-in.-thick concrete. The building has a bearing wall system, braced with special reinforced concrete shearwalls. The building location is Memphis, Tennessee, where the mapped short-period spectral acceleration SS is 1.26g, and the mapped one-second spectral acceleration S1 is 0.38g. Site Class D, Occupancy Category IV should be assumed.

Fig. 3.A

Find: a. The seismic base shear and diaphragm force coefficients b. The uniform force to the roof diaphragm in lb/ft. Draw the loading diagram c. The total diaphragm shear and the unit diaphragm shear adjacent to the transverse walls using ASD and LRFD load combinations d. The total shear and the unit shear at the midheight of the transverse shearwalls using ASD and LRFD load combinations